2021 CHEVROLET SILVERADO 1500

ENGINE AND ENGINE COOLING:ENGINE:HARD PARTS INTERNAL/MECHANICAL

General Motors LLC (GM) is recalling certain 2021-2024 Cadillac Escalade and Escalade ESV, Chevrolet Silverado 1500, Suburban, and Tahoe, GMC Sierra 1500, Yukon, and Yukon XL vehicles equipped with a 6.2L V8 gas engine. The connecting rod and/or crankshaft engine components may have manufacturing defects that can lead to engine damage and engine failure.

Risk: Engine failure increases the risk of a crash.

POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE:SOFTWARE

General Motors, LLC (GM) is recalling certain 2020-2022 Chevrolet Silverado 1500, 2500, 3500, GMC Sierra 1500, 2500, 3500, 2021 Cadillac Escalade, Escalade ESV, Chevrolet Tahoe, Suburban, GMC Yukon, and Yukon XL vehicles equipped with diesel engines. The transmission control valve may fail and cause the rear wheels to lock-up.

Risk: Rear wheel lock-up can increase the risk of a crash.

TIRES:TEMPORARY/EMERGENCY SPARE TIRE

General Motors (GM) is recalling certain 2019-2021 GMC Sierra 1500 and Silverado 1500 vehicles equipped with certain accessory road tires and a 17" spare tire. The 17" spare tire provided with the vehicle is not compatible for use with the accessory wheels, which can cause the anti-lock brake system (ABS) to not function properly under certain conditions.

Risk: An ABS system that does not function properly can increase the risk of a crash.

AIR BAGS:FRONTAL

General Motors, LLC. (GM) is recalling certain 2021 Chevrolet Silverado 1500 vehicles. The front driver's side air bag module may be missing one or more metal tabs that secure the plastic air bag cover to the housing.

Risk: The missing tabs may prevent the air bag from deploying properly, increasing the risk of injury in a crash.

TIRES

General Motors LLC (GM) is recalling certain 2020 Buick Enclave, Cadillac XT5, GMC Acadia and Chevrolet Traverse vehicles and 2020-2021 Chevrolet Silverado 1500, GMC Sierra 1500 vehicles. The vehicles may have been manufactured with Continental tires that were overcured.

Risk: Overcured tires may experience a carcass break in the sidewall resulting in a sudden air loss or could develop a belt edge separation which could lead to partial or full tread/belt loss. Either condition increases the risk of a crash.

SEAT BELTS

General Motors, LLC (GM) is recalling certain 2020 Chevrolet Bolt EV and 2021 GMC Canyon and Sierra 1500, 2500 and 3500, Yukon, Yukon XL, Cadillac Escalade and Escalade ESV and Chevrolet Blazer, Camaro, Colorado, Equinox, Silverado 1500, 2500 and 3500, Suburban and Tahoe vehicles. Incorrect bolts may have been used at one or more fastening locations to secure the seat belts to the vehicle. If an incorrect bolt was used, the seat belt may not be properly attached to the vehicle.

Risk: If a seat belt assembly is not properly attached to the vehicle, the seat belt may not properly restrain an occupant in the event of a crash, increasing the risk of injury.

FUEL/PROPULSION SYSTEM

I have a 2021 chevy silverado and in october of 2023 I lost oil pressure and took the truck to a mechanic shop and they determined that the engine had spun rod bearings and crankshaft bearings inside the engine block and needed to be rebuilt. I had them make the repairs and upgraded the engine with aftermarket parts which cost me $15,600. When the recall came out this year it came with a form for reimbursement. I collected all the documents required to submit for reimbursement and I was denied because I did not have the work performed at a gm dealership. I didn't take it to the dealership because of the time they required to fix the truck and it was already out of warranty because of the mileage and I really didn't want to replace the engine components with more of their faulty parts. Just because I had the repairs done at a 3rd party shop does not excuse the fact that they sold me a truck with a faulty engine.

ENGINE

I have a 2021 chevy silverado and in october of 2023 I lost oil pressure and took the truck to a mechanic shop and they determined that the engine had spun rod bearings and crankshaft bearings inside the engine block and needed to be rebuilt. I had them make the repairs and upgraded the engine with aftermarket parts which cost me $15,600. When the recall came out this year it came with a form for reimbursement. I collected all the documents required to submit for reimbursement and I was denied because I did not have the work performed at a gm dealership. I didn't take it to the dealership because of the time they required to fix the truck and it was already out of warranty because of the mileage and I really didn't want to replace the engine components with more of their faulty parts. Just because I had the repairs done at a 3rd party shop does not excuse the fact that they sold me a truck with a faulty engine.

UNKNOWN OR OTHER

I am filing a formal complaint regarding a serious safety concern with my 2021 CHEVROLET SILVERADO, following the completion of recall N252494001 performed by Galleria Chevrolet in Dallas, TX. Prior to this recall work and related inspections, my vehicle operated without any abnormal engine noise. After the recall inspection and a subsequent fuel injector repair performed by the dealer, my vehicle began producing a bottom-end engine noise that had never been present before, and ultimately we have catastrophic engine failure. What is highly concerning is that the dealership staff previously documented the situation in writing as follows: “We performed the recall inspection and the truck passed. After performing an injector repair now there is a bottom-end noise when it's running. Did the failed injector possibly affect the validity of the test? That may be the case. We know that the truck did not experience the noise before the inspection; is it possible that the steps we took affected the truck in a way that got the noise to show itself? That’s what we need to determine.” Despite this acknowledgment, the dealership is now denying any responsibility, classifying the damage as unrelated “wear and tear”. This reversal appears highly suspicious, as it contradicts their own observations and written notes. It suggests that the dealership and GM may be refusing to fulfill their obligations under the recall and repair warranty, leaving me with a vehicle that has a blown engine and a significant safety risk. Given the timing of the noise, occurring directly after recall work and injector repair, and the internal documentation from the dealership itself, I request NHTSA investigate whether: This issue is part of a broader trend affecting other vehicles under the same recall. GM and its dealers are properly honoring their obligations to fully repair vehicles impacted by recalls. Consequential damage resulting from recall work is being systematically denied coverage.

ENGINE

I am filing a formal complaint regarding a serious safety concern with my 2021 CHEVROLET SILVERADO, following the completion of recall N252494001 performed by Galleria Chevrolet in Dallas, TX. Prior to this recall work and related inspections, my vehicle operated without any abnormal engine noise. After the recall inspection and a subsequent fuel injector repair performed by the dealer, my vehicle began producing a bottom-end engine noise that had never been present before, and ultimately we have catastrophic engine failure. What is highly concerning is that the dealership staff previously documented the situation in writing as follows: “We performed the recall inspection and the truck passed. After performing an injector repair now there is a bottom-end noise when it's running. Did the failed injector possibly affect the validity of the test? That may be the case. We know that the truck did not experience the noise before the inspection; is it possible that the steps we took affected the truck in a way that got the noise to show itself? That’s what we need to determine.” Despite this acknowledgment, the dealership is now denying any responsibility, classifying the damage as unrelated “wear and tear”. This reversal appears highly suspicious, as it contradicts their own observations and written notes. It suggests that the dealership and GM may be refusing to fulfill their obligations under the recall and repair warranty, leaving me with a vehicle that has a blown engine and a significant safety risk. Given the timing of the noise, occurring directly after recall work and injector repair, and the internal documentation from the dealership itself, I request NHTSA investigate whether: This issue is part of a broader trend affecting other vehicles under the same recall. GM and its dealers are properly honoring their obligations to fully repair vehicles impacted by recalls. Consequential damage resulting from recall work is being systematically denied coverage.

ENGINE AND ENGINE COOLING

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving approximately 70 MPH, there was a knocking sound coming from the engine compartment before the vehicle went into "LIMP Mode" and decelerated to approximately 35 MPH. The check engine warning light was illuminated. The vehicle was driven to the local dealer, who diagnosed that the engine "Crank Shaft" had failed and needed to be replaced. The manufacturer was notified of the failure and informed the contact that the VIN was not included in NHTSA Campaign Number: 25V274000 (ENGINE AND ENGINE COOLING). The contact stated that the vehicle had experienced the failure listed in the recall. The failure mileage was 165,000.

ELECTRICAL SYSTEM

Vehicle: 2021 Chevrolet Silverado 1500, 3.0L LM2 Turbo Diesel Mileage at most recent failure at 106k miles Complaint Narrative This vehicle has experienced repeated, serious defects affecting engine, transmission, emissions system, and safety recall performance. Despite numerous repair attempts over three years, the problems remain unresolved and the vehicle is currently undriveable and held by the dealership (since August 17, 2025). Key safety concerns: Transmission failure: Transmission catastrophically failed at 78,942 miles due to excessive metal contamination, requiring full replacement. Transmission issues have persisted even after replacement. Recall N24254440 (rear wheel lock-up): Dealer attempted recall repairs multiple times in 2025 but failed due to programming errors. Recall remains incomplete and unresolved. Hard starting / reduced power: Vehicle intermittently fails to start or loses propulsion, creating risk of stalling in intersections or traffic. Engine/emissions failures: Multiple check engine events with NOx sensors, exhaust differential pressure sensors, and coolant flow valve failures. Current status: Vehicle has been in dealer custody since Aug 17, 2025, with no completion date. Dealer reports unresolved oil leak, check valve/box sensor replacement pending, and open recall not fixed. The cumulative history shows systemic defects across powertrain and emissions systems, ongoing safety recall failures, and lack of durable repairs. I am providing all invoices, videos, and documentation upon request. --- Chronological Service Timeline Invoice #Mileage (in/out)DateReported Issue / Repair Attempt 33432337,290 → 37,62607/11/22 – 07/30/22Check engine light. Multiple fault codes. Dealer performed diagnostics, suspected exhaust leak, removed components for inspection. 33433837,450 → 37,50807/

POWER TRAIN

Vehicle: 2021 Chevrolet Silverado 1500, 3.0L LM2 Turbo Diesel Mileage at most recent failure at 106k miles Complaint Narrative This vehicle has experienced repeated, serious defects affecting engine, transmission, emissions system, and safety recall performance. Despite numerous repair attempts over three years, the problems remain unresolved and the vehicle is currently undriveable and held by the dealership (since August 17, 2025). Key safety concerns: Transmission failure: Transmission catastrophically failed at 78,942 miles due to excessive metal contamination, requiring full replacement. Transmission issues have persisted even after replacement. Recall N24254440 (rear wheel lock-up): Dealer attempted recall repairs multiple times in 2025 but failed due to programming errors. Recall remains incomplete and unresolved. Hard starting / reduced power: Vehicle intermittently fails to start or loses propulsion, creating risk of stalling in intersections or traffic. Engine/emissions failures: Multiple check engine events with NOx sensors, exhaust differential pressure sensors, and coolant flow valve failures. Current status: Vehicle has been in dealer custody since Aug 17, 2025, with no completion date. Dealer reports unresolved oil leak, check valve/box sensor replacement pending, and open recall not fixed. The cumulative history shows systemic defects across powertrain and emissions systems, ongoing safety recall failures, and lack of durable repairs. I am providing all invoices, videos, and documentation upon request. --- Chronological Service Timeline Invoice #Mileage (in/out)DateReported Issue / Repair Attempt 33432337,290 → 37,62607/11/22 – 07/30/22Check engine light. Multiple fault codes. Dealer performed diagnostics, suspected exhaust leak, removed components for inspection. 33433837,450 → 37,50807/

POWER TRAIN

The transmission shudders during light throttle at cruising speeds and low rpms, tachometer show continuous jumps in rpm and vehicle loosing power. No check engine lights. Concerned that transmission behavior can make the vehicle a hazard on highyways. Shuddering and hesitation on acceleration. Transmission fluid was changed at 70k miles and symptoms still persist. Current mileage 71k.

ENGINE

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving off an off-ramp at approximately 40-60 MPH and depressing the brake pedal, the vehicle suddenly lost power and turned off. The contact restarted the vehicle to continue driving. The failure had occurred twice. The contact stated that while driving at various speeds and depressing the brake pedal, the brakes grabbed, causing the vehicle to lunge forward, decelerate, and then lunge forward again, before coming to a complete stop. The contact shifted to park(P) and then to drive(D) and continued driving. The check engine warning light was illuminated. The vehicle was taken to the dealer four times before receiving notification of NHTSA Campaign Number: 24V797000 (Power Train). The dealer was unable to determine the cause of the failure. The vehicle was taken to the dealer, and the recall repair was performed. The contact stated that one hour after the recall repair, the failure recurred with the check engine warning light illuminated. The dealer was informed of the failure; however, the vehicle was not diagnosed or repaired again. The manufacturer was informed of the failure. The manufacturer referred the contact to the dealer for assistance. The failure mileage was approximately 56,000.

POWER TRAIN

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving off an off-ramp at approximately 40-60 MPH and depressing the brake pedal, the vehicle suddenly lost power and turned off. The contact restarted the vehicle to continue driving. The failure had occurred twice. The contact stated that while driving at various speeds and depressing the brake pedal, the brakes grabbed, causing the vehicle to lunge forward, decelerate, and then lunge forward again, before coming to a complete stop. The contact shifted to park(P) and then to drive(D) and continued driving. The check engine warning light was illuminated. The vehicle was taken to the dealer four times before receiving notification of NHTSA Campaign Number: 24V797000 (Power Train). The dealer was unable to determine the cause of the failure. The vehicle was taken to the dealer, and the recall repair was performed. The contact stated that one hour after the recall repair, the failure recurred with the check engine warning light illuminated. The dealer was informed of the failure; however, the vehicle was not diagnosed or repaired again. The manufacturer was informed of the failure. The manufacturer referred the contact to the dealer for assistance. The failure mileage was approximately 56,000.

ENGINE

The 3 and 4 cylinder need to be replaced at 130000 miles with regulate maintenance always maintained

POWER TRAIN

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving approximately 15 MPH, after making a left turn at a traffic signal, the rear wheels locked up. The contact stated that there was an abnormal screeching sound while depressing the brake pedal in a panic stop, and the vehicle jolted violently. The contact stopped the vehicle with the engine still running and observed the "Service Engine Soon" message displayed. The contact attempted to drive forward, and the rear wheels locked up. The contact was able to drive the vehicle to an Auto Parts store. The contact stated that a store representative used a handheld scanner and was able to retrieve DTC: P0747 (Transmission Valve Body #1 Open). The vehicle was not taken to a dealer or independent mechanic. The vehicle had not been diagnosed or repaired. The manufacturer was not informed of the failure. The contact researched online and related the failure to NHTSA Campaign Number: 24V797000 (Power Train); however, the VIN was not included. The failure mileage was approximately 140,000.

ENGINE

2021 Silverado 1500 Trail Boss LT with 6.2ltr V8 L87 had sudden catastrophic engine failure at 90,000 miles with excellent and routine maintenance up to. Findings were a broken timing chain, cracked piston and debris in number 8 intake port. Vehicle lost propulsion on the highway posing a safety risk to the driver, passengers and other vehicles on the roadway. Dealership confirmed the findings. There were no warning signs, signals, lamps, beeps, noises or any other indicators that there was an issue with the motor. It unexpectedly and suddenly failed without warning.

LATCHES/LOCKS/LINKAGES:TAILGATE:LATCH

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that after power washing the vehicle, the tailgate opened unexpectedly. There were no warning lights illuminated. The contact used a bungee cord to secure the tailgate. The contact stated that the vehicle should be included in Customer Satisfaction Program: N232426401. The contact called the local dealer, who confirmed there was no recall coverage on the VIN for the failure. The vehicle was not diagnosed or repaired. The manufacturer was contacted and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 42,000.

POWER TRAIN

General Motors is selling vehicles that are unsafe, unreliable, and unfit for consumers. My experience shows a clear pattern of negligence, misrepresentation, and disregard for public safety. On or about April of 2021, I purchased a 2021 Chevy Silverado RST z71 from Vetter chvrolet for about $56,000. GM promoted this vehicle as safe and dependable. Within the short 4 years of owning this truck, I faced major failures: engine issues, transmission problems and electrical malfunctions causing the parking break to engage on its own, at highway speeds of 70-80 mph on which nearly caused a serious accident, and failed Electronic Stability Control (ESC) system. This system helps maintain vehicle control, and a problem with it can affect braking, steering, and handling, Despite following GM’s maintenance guidelines, GM delayed repairs, denied coverage on certain failures, and left me with thousands in out-of-pocket costs. The vehicle remains unreliable and unsafe. For myself and my family, 2 children under 3 years old and one on the way. This is not an isolated issue—GM has a long history of recalls and defect cover-ups. These vehicles put lives at risk, cause financial hardship, and violate consumer trust. No one should fear for their safety in a vehicle marketed as “dependable.” This has impacted me by having : • Expensive repairs • Loss of transportation for extended periods • Ongoing fear of driving a defective vehicle with my family in it. Loss of use of my vehicle • Fear and emotional distress driving an unsafe product I have contacted GM and the dealership multiple times. Responses were dismissive, repairs were inadequate, and GM refuses accountability. Requested Resolution: Full reimbursement for all related costs Buyback (preferred) of the vehicle OR permanent repair at no cost Public acknowledgment and stronger quality control. Warning to Consumers: Think twice before trusting GM. Their failure to correct dangerous defects shows profits matter more than safety.

ELECTRICAL SYSTEM

General Motors is selling vehicles that are unsafe, unreliable, and unfit for consumers. My experience shows a clear pattern of negligence, misrepresentation, and disregard for public safety. On or about April of 2021, I purchased a 2021 Chevy Silverado RST z71 from Vetter chvrolet for about $56,000. GM promoted this vehicle as safe and dependable. Within the short 4 years of owning this truck, I faced major failures: engine issues, transmission problems and electrical malfunctions causing the parking break to engage on its own, at highway speeds of 70-80 mph on which nearly caused a serious accident, and failed Electronic Stability Control (ESC) system. This system helps maintain vehicle control, and a problem with it can affect braking, steering, and handling, Despite following GM’s maintenance guidelines, GM delayed repairs, denied coverage on certain failures, and left me with thousands in out-of-pocket costs. The vehicle remains unreliable and unsafe. For myself and my family, 2 children under 3 years old and one on the way. This is not an isolated issue—GM has a long history of recalls and defect cover-ups. These vehicles put lives at risk, cause financial hardship, and violate consumer trust. No one should fear for their safety in a vehicle marketed as “dependable.” This has impacted me by having : • Expensive repairs • Loss of transportation for extended periods • Ongoing fear of driving a defective vehicle with my family in it. Loss of use of my vehicle • Fear and emotional distress driving an unsafe product I have contacted GM and the dealership multiple times. Responses were dismissive, repairs were inadequate, and GM refuses accountability. Requested Resolution: Full reimbursement for all related costs Buyback (preferred) of the vehicle OR permanent repair at no cost Public acknowledgment and stronger quality control. Warning to Consumers: Think twice before trusting GM. Their failure to correct dangerous defects shows profits matter more than safety.

ENGINE

General Motors is selling vehicles that are unsafe, unreliable, and unfit for consumers. My experience shows a clear pattern of negligence, misrepresentation, and disregard for public safety. On or about April of 2021, I purchased a 2021 Chevy Silverado RST z71 from Vetter chvrolet for about $56,000. GM promoted this vehicle as safe and dependable. Within the short 4 years of owning this truck, I faced major failures: engine issues, transmission problems and electrical malfunctions causing the parking break to engage on its own, at highway speeds of 70-80 mph on which nearly caused a serious accident, and failed Electronic Stability Control (ESC) system. This system helps maintain vehicle control, and a problem with it can affect braking, steering, and handling, Despite following GM’s maintenance guidelines, GM delayed repairs, denied coverage on certain failures, and left me with thousands in out-of-pocket costs. The vehicle remains unreliable and unsafe. For myself and my family, 2 children under 3 years old and one on the way. This is not an isolated issue—GM has a long history of recalls and defect cover-ups. These vehicles put lives at risk, cause financial hardship, and violate consumer trust. No one should fear for their safety in a vehicle marketed as “dependable.” This has impacted me by having : • Expensive repairs • Loss of transportation for extended periods • Ongoing fear of driving a defective vehicle with my family in it. Loss of use of my vehicle • Fear and emotional distress driving an unsafe product I have contacted GM and the dealership multiple times. Responses were dismissive, repairs were inadequate, and GM refuses accountability. Requested Resolution: Full reimbursement for all related costs Buyback (preferred) of the vehicle OR permanent repair at no cost Public acknowledgment and stronger quality control. Warning to Consumers: Think twice before trusting GM. Their failure to correct dangerous defects shows profits matter more than safety.

POWER TRAIN

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving from a complete stop, and while driving at various speeds, the vehicle jerked abnormally, and the transmission shifted hard. There was no warning light illuminated. The vehicle was taken to the dealer, where it was diagnosed with transmission failure. The contact was informed that the transmission needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 160,000.

ENGINE AND ENGINE COOLING

The contact owns a 2021 Chevrolet Silverado 1500. The contact received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling). The dealer was contacted, and the contact was informed that the parts were unavailable. The contact stated that the manufacturer had exceeded the limited time frame to have the parts available. The manufacturer was contacted; however, the contact was informed that parts were not yet available. The contact had not experienced a failure.

ENGINE

So many vehicles like mine have si.ilar issue. Lifter issues causing engine damage and other part damage. Causes issues at high-speed with power and stranded motorists on dangerous highways. It is a safety issue because you could be stranded in middle of highway. Lifter issues causing bent pushrods and other engine part damage costing . I had one pushrod covered, but others failed and now thousands in repairs. In expensive vehicles. Also towing charges, hotels, rental cars, etc... I dont want to be stranded again as only one bank was all replaced. The entire top half of the engine should be fixed and should be replaced and a service bulletin and recall should be issued to help.protect consumers.

ENGINE

On, or about, 10 June 2025 I attempted to start my 2021 Chevrolet Silverado (with the L87 engine) and noticed an extremely rough idle. I shut the engine off and attempted to restart the engine, the idle was rougher than previous and then white smoke started billowing out of my exhaust. At that point I called a wrecker to take my truck to the service center at my dealership. After the dealership diagnosed my engine they stated that it had failed due the defect in the L87 engine that is currently the subject of an active recall. The service center informed me I would need a replacement engine under the warranty but could not give me a timeline, I have been in constant contact with my service advisor and they indicate that GM has no updates as to where I am in the queue, or how long it may be before my replacement engine will be sent. As of writing this complaint it has been two months with no updates from the manufacturer.

SERVICE BRAKES, HYDRAULIC

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving approximately 65 MPH and attempting to decelerate, the brake pedal extended to the floorboard while depressed, and the vehicle failed to immediately decelerate. During the failure, the message "Brake Failure" was displayed. The vehicle was later towed to the local dealer. The cause of the failure was not yet determined. The manufacturer was notified of the failure. The failure mileage was 94,000.

TRACTION CONTROL SYSTEM

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving 30 MPH, the rear wheels locked up, causing the vehicle to slide across the road. The contact was able to regain control of the vehicle and came to a stop in the middle of the road. The check engine and traction control warning lights were illuminated. The contact turned off and then restarted the vehicle and became aware that the transmission failed to shift into the intended gear. The vehicle was towed to the contact's place of employment. The contact who is a certified mechanic performed a diagnostic test and retrieved DTC: P0747, indicating a failure with the pressure control cylinder in the transmission. The contact also found information on NHTSA Campaign Number: 24V797000 (Power Train); however, the VIN was not included. The vehicle was not repaired. The dealer was contacted and confirmed that the VIN was not included int the recall. The manufacturer was not informed of the failure. The failure mileage was 83,830.

ENGINE

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving 30 MPH, the rear wheels locked up, causing the vehicle to slide across the road. The contact was able to regain control of the vehicle and came to a stop in the middle of the road. The check engine and traction control warning lights were illuminated. The contact turned off and then restarted the vehicle and became aware that the transmission failed to shift into the intended gear. The vehicle was towed to the contact's place of employment. The contact who is a certified mechanic performed a diagnostic test and retrieved DTC: P0747, indicating a failure with the pressure control cylinder in the transmission. The contact also found information on NHTSA Campaign Number: 24V797000 (Power Train); however, the VIN was not included. The vehicle was not repaired. The dealer was contacted and confirmed that the VIN was not included int the recall. The manufacturer was not informed of the failure. The failure mileage was 83,830.

POWER TRAIN

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving 30 MPH, the rear wheels locked up, causing the vehicle to slide across the road. The contact was able to regain control of the vehicle and came to a stop in the middle of the road. The check engine and traction control warning lights were illuminated. The contact turned off and then restarted the vehicle and became aware that the transmission failed to shift into the intended gear. The vehicle was towed to the contact's place of employment. The contact who is a certified mechanic performed a diagnostic test and retrieved DTC: P0747, indicating a failure with the pressure control cylinder in the transmission. The contact also found information on NHTSA Campaign Number: 24V797000 (Power Train); however, the VIN was not included. The vehicle was not repaired. The dealer was contacted and confirmed that the VIN was not included int the recall. The manufacturer was not informed of the failure. The failure mileage was 83,830.

POWER TRAIN

Transmission is making rattling or ticking noise when accelerating , I'm getting hard shifting in 1st and 2nd and some random gears , I have been launched forward when coming to a stop , some hard shifting when kicking down to pass

POWER TRAIN

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving on a neighborhood road, after coming to a complete stop and attempting to accelerate, the transmission started slipping. The check engine warning light was illuminated. The vehicle was restarted; however, the check engine warning light remained illuminated. The contact stated that while driving and accelerating, there was an abnormal sound coming from the rear of the vehicle. The vehicle was taken to a local dealer to be diagnosed, and the contact was informed that there was no cause for the failure found. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 24,000.

POWER TRAIN:AUTOMATIC TRANSMISSION

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at slow speeds, while completing a right turn, there was a loud bang and the vehicle immediately lost motive power. The vehicle was coast to the shoulder of the roadway, where the failure persisted. No warning lights were illuminated. The vehicle was towed to the dealer, who diagnosed a failure with the transmission, and determined that there was a rupture in the transmission cooling system. The contact was informed that the transmission needed to be rebuilt or replaced. The vehicle was not repaired. The contact stated that the failure had occurred twice in the past and the transmission was rebuilt by the dealer. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA Hotline for assistance. The failure mileage was 59,000.

ENGINE

The contact owns a 2021 Chevrolet Silverado 1500. The vehicle was initially taken to the local dealer to be repaired under NHTSA Campaign Number: 24V797000 (Power Train). The contact stated the vehicle was not repaired. While driving 30-35 MPH, the rear-end locked up and caused the vehicle to enter the wrong lane. The contact stated that other vehicles were able to drive around the vehicle during the failure. The engine revved, and the RPMs revved too high. The driver was able to pull over safely. The check engine, traction control, parking brake, and maintenance warning lights were illuminated. The vehicle was towed to the local dealer, where it was diagnosed, and it was determined that the rear-end had locked up, and the #5 cylinder and wiring harness needed to be replaced. The mechanic was unable to unlock the rear-end. The vehicle was not repaired. The vehicle was taken to the local dealer on six other occasions for unknown issues. The manufacturer was contacted regarding a buyback. The failure mileage was approximately 34,958.

POWER TRAIN

The contact owns a 2021 Chevrolet Silverado 1500. The vehicle was initially taken to the local dealer to be repaired under NHTSA Campaign Number: 24V797000 (Power Train). The contact stated the vehicle was not repaired. While driving 30-35 MPH, the rear-end locked up and caused the vehicle to enter the wrong lane. The contact stated that other vehicles were able to drive around the vehicle during the failure. The engine revved, and the RPMs revved too high. The driver was able to pull over safely. The check engine, traction control, parking brake, and maintenance warning lights were illuminated. The vehicle was towed to the local dealer, where it was diagnosed, and it was determined that the rear-end had locked up, and the #5 cylinder and wiring harness needed to be replaced. The mechanic was unable to unlock the rear-end. The vehicle was not repaired. The vehicle was taken to the local dealer on six other occasions for unknown issues. The manufacturer was contacted regarding a buyback. The failure mileage was approximately 34,958.

ENGINE AND ENGINE COOLING

The contact owns a 2021 Chevrolet Silverado 1500. The contact had received notification of NHTSA Campaign Number: 25V274000(Engine and Engine Cooling). The contact stated that upon taking the vehicle to the dealer for a routine oil change, the contact requested an engine inspection and oil change. The dealer performed the oil change; however, the dealer informed the contact that the recall remedy was not yet available for the vehicle. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was informed of the issue. The contact had not experienced a failure.

POWER TRAIN

Transmission shifts rough, shudders, has hesitation at times, makes the vehicle feel like it is missing from jerking. Have not contacted dealer. No warning lamps, messages. Occurred a week after purchasing vehicle.

ELECTRICAL SYSTEM

Tailgate experienced issues with not unlatching when button is pushed and also unlatching when button is not pushed.

ENGINE

The truck started rattling and lost power while driving. Every warning light came on on the instrument panel. I was driving on the freeway in rush hour traffic when this happened. Yes, it has been confirmed by a dealership and independent service center. No lights were on prior to when it failed to give any warning that something may be going wrong. The failure occurred immediately after GM issued a recall in April involving defective V8 engines (Recall Link [XXX] )). While our truck is not currently included in the recall, the diagnosis of the vehicle is all the same as that of the recalled engines. We should not have an engine failing at 130K miles on a vehicle that has been well maintained. We are asking that this truck be added to the recall. We are still without the vehicle as engines cannot be sourced. Please advise on next steps. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

POWER TRAIN

I was driving in a straight line at 45mph when my truck jerked to one side. It felt like the back of the truck was sliding out from behind me and also felt like my truck was being pulled to a stop. A check engine light came on. I drove it back to my house (approximately 3 miles). The light went away but came back, and the transmission started overheating even though I was only going 10-20 mph. The truck randomly did the same jerking action while going home. I had to drive slow to get home. There was no warning when this happened. No lights, sounds, or other warnings. The jerking motion almost made me hit other cars, and almost made me lose control of the vehicle. It is available for inspection if needed. It has not been looked at yet because I found this website when researching the problem online. If you want to inspect it, then you need to inspect within 2-3 weeks because I’m military and I am getting stationed overseas.

ENGINE

In June 2025, I received a letter from General Motors noting that a defect exist relating to motor vehicles safety in certain 2021 model of Chevrolet Silverado equipped with the 6.2L V8 gas engine (RPOL87). The dealer has been unable to fix the issue in a timely manner as they claim that the parts are on backorder. Additionally, they have been unable to provide me with another vehicle while my car is in the dealer. It is completely unacceptable that the dealer has been unable to fix the issue in a timely manner or provide with alternative form of transportation while the parts arrive.

POWER TRAIN

Transmission problems, when the truck would get to operating temperature the transmission would lurch when I would stop the truck. If I pulled up to a stop sign/light the transmission would lurch forward hard enough to make it feel like I got hit. If I didn't have my foot hard on the brake pedal it would move the truck far enough to hit another vehicle or pedestrian. After awhile the transmission started to slip out of gear as I was driving at highway speeds or not engage correctly during acceleration. I have now been without this truck for months while they try to replace the transmission.

ENGINE

Lifters 1-3-5-7 all failed. They were pitted as was the camshaft. Diagnosis from Hendrick Chevrolet in Hoover AL. 70k miles on one owner truck. Regular servicing and never towed anything.

ENGINE

check engine light came on at 55000 mile went to servige ststion they check oil 4 quart lowe motor leaking o il . been to dealer 5 time in last 2 0r 3 month . now engine making peaking noise at 6400 mile . dealer say warrenty out have to pay for repair . something wrong clinder head they guess dont now for shore will have to tare into motor this truck was under warrenty when i first took it for repairs now they want me to pay for the repairs .

FUEL/PROPULSION SYSTEM

No updates have been made to fix recall. Status has been pending for a long and it’s preventing me from selling the car due to fear of breaking down.

ENGINE

No updates have been made to fix recall. Status has been pending for a long and it’s preventing me from selling the car due to fear of breaking down.

ENGINE

Around July 1st, 2025 I was hearing a ticking sound when taking off from a stop. On July 11th I had an oil change completed on the truck at the Local Chevy dealership, after the oil change, I mentioned the noise and was told maybe we could schedule some sort of deep cleaning of the internal components of the engine. After leaving the dealership after the oil change, I was still hearing the ticking sound. I then scheduled an appointment on July 22nd for the dealership to look into the ticking sound. I drove the truck to the dealership and it was working fine; other than the ticking sound when the RPM’s were at 2200. At no time was there any warning lights that came on to alert me to a problem. After approximately 30 minutes of waiting in the customer waiting area, the service advisor came and got me and said “we have big problems” and they were going to need the truck longer to look into it. I walked out to the service bay to get some personal items out of the truck. At that time, the mechanic pointed out some white looking fluffy cotton material and said that just came out the end of your exhaust. I had never seen that material prior to this appointment on July 22. The dealership called me July 24th and told me that the engine and exhaust system need to be replaced. They told me that the bottom end connecting rod came apart, and went through the engine and the exhaust system while it was at their facility on July 22. This truck has the 6.2L V8 (RPO L87) gas engine…. This truck is a 2021 and there is 76,957 miles currently on it (7/24/2025). With a blown engine, and an exhaust system that needs to be replaced.

ENGINE

Went to accelerate through an intersection and the engine seized up in the middle of the intersection. Complete loss and of engine propulsion. Had to be towed. Could have caused an accident. No warning signs. Truck was running great until it wasn’t running at all.

ENGINE

Purchased a 2021 Chevy Silverado in Dec 2020. At 4600 miles had first engine failure requiring lifters and tie rods to be replaced, bank 1/Cylinder 5. Looking back this repair was a bandaid for an engine (6.2L) with problems known to GMC. On May 3, 2025 @ 79,000 miles truck started making loud noises and all dash lights started flashing including engine lights while driving, dangerous because we were on a busy roadway. Pulled over to shoulder and had towed to dealership. Diagnosis was a crank bearing failure, scored cylinder, push rod bent and lifters were damaged. Engine is not repairable. Here we are just short of 3 months and still no truck, no ETA on replacement engine. Even though our Silverado is a 2021 it is not part of the current GMC recall because the engine was manufactured in 2020. We know that NHSTA is investigating 6.2L engines for years 2019 and 2020 and urge NHTSA to broaden the current recall. Our truck was our only vehicle and the expenses we have incurred through no fault of our own are a strain on our budget, we are retired and on a fixed income. This is our 2nd Complaint filing on our truck to provide NHSTA with additional information.

SERVICE BRAKES

I have this pick up I was on a hill heading down to stop sighn pressed on brake and went to the floor no resistance nothing luckily it was a rural rd went thru stop sigh coasted to a stop was 1/4 from home lifted hood the brake reservoir was full all brakes were in top shape it was like something shut off the brakes electrically I have driven many large trucks and buses and vehicles never felt this no spongey at all it is at the dealership they are looking at but my concern this could be a far worst circumstance if in heavy traffic or at cross walk can’t even think of it. Scary I would think gm would have some type of secondary for electric malfunction the vehicle is at Cerrone gmc south Attleborough mass. My vehicle is 2021 Chevy Silverado 75000 miles well maintained. In short I believe the mechanics will diagnose and fix it but my concern. That these vehicles need safety checks

POWER TRAIN

Driving Ashland pass in OR, the transmission over heated with the truck dinging for us to pull over an idle, there is no where to pull over on Ashland pass for 8 miles. After sitting in an unsafe location with the truck idling wasting fuel we where able to get back on road after 30min. Upon arrival to location we where able to see that the exhaust system sits right on the transmission pan heating it up when truck is running. This model does not have a dip stick to check transmission fluid resulting in a $2500.00 drop an drain to which I am told by the mechanic that this needs to be done every 40k. That is alot of cost 2x a year.

ENGINE AND ENGINE COOLING

The contact owns a 2021 Chevrolet Silverado 1500. The contact received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling). The contact stated that while driving at approximately 45 MPH, the vehicle lost motive power. The contact pulled over to the side of the road however, the vehicle failed to restart. The vehicle was towed to a dealer, where it was diagnosed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 47,000.

ENGINE

P0016 camshaft position not plausible Service manager at Loftons Chevrolet in Henderson Tn states that truck needs a new motor but not covered under recall

FUEL/PROPULSION SYSTEM

P146B (EVAP Purge Pump System Performance) engine code started occurring around 50,000 miles. This is similar to the recall for 2019-2020 Chevy Silverado, Cadillac XT4, and GMC Sierra 1500 covered by N202324990.

LATCHES/LOCKS/LINKAGES:TAILGATE:LATCH

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that after arriving to her destination, the contact became aware that the tailgate was unintendedly lowered. While attempting to close the tailgate, the tailgate failed to latch securely. No warning lights were illuminated. The vehicle was not taken to the dealer or an independent mechanic to be diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was 117,000.

ENGINE

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving 75 MPH, an abnormal boom sound was heard coming from the engine. The vehicle failed to accelerate as intended while depressing the accelerator pedal. The contact stated that the engine seized. The check engine warning light was illuminated. The vehicle was towed to the local dealer and was diagnosed with crank shaft sensor failure. The contact was later informed that the engine had failed and needed to be replaced. The vehicle was not repaired due to the cost. The manufacturer was contacted. The failure mileage was approximately 85,000.

ENGINE

Losing power while driving and acceleration and uneven idle sometimes

ELECTRICAL SYSTEM

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving at various speeds, or while attempting to reverse, the infotainment system displayed a blank screen; however, approximately a minute later the infotainment screen displayed as intended. The contact stated that the radio became silent and then thirty seconds later the infotainment system operated as intended. A dealer was contacted. The vehicle was taken to the dealer where it was determined that the infotainment system needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure and opened a case. The approximate failure mileage was 44,540.

POWER TRAIN

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that the transmission shifted hard while depressing the accelerator pedal. There was no warning light illuminated. The vehicle was taken to the dealer and the TCM was reprogrammed; however, the failure worsened, and the vehicle hesitated while depressing the accelerator pedal. Upon investigation, the contact discovered NHTSA Campaign Number: 24V797000 (Power Train) and linked the failure to the recall. The vehicle was taken back to the dealer and the contact was informed that the vehicle was not under recall. The contact was referred to the NHTSA Hotline to report the failure. The vehicle was not repaired. The manufacturer was notified of the failure and a case was filed. The failure mileage was approximately 120,000.

FUEL/PROPULSION SYSTEM

July, 10 2025 My 2021 chevy Silverado has stalled today in the middle of the road. When trying to start, it sounds like if it wants to turn over but it won’t. I bought a brand new battery and problem is not resolved. I did some digging and sounds like fuel pump will not come on. This truck is only 4 years old and I should be having these issues. Please help thanks

ENGINE

July, 10 2025 My 2021 chevy Silverado has stalled today in the middle of the road. When trying to start, it sounds like if it wants to turn over but it won’t. I bought a brand new battery and problem is not resolved. I did some digging and sounds like fuel pump will not come on. This truck is only 4 years old and I should be having these issues. Please help thanks

ENGINE

My truck is experiencing what is commonly known as the Chevy shakes. Whenever the transmission goes over 2000RPM or below 2000RPM my truck jumps. Also, the rear wheels lock up for a short time while I start driving for about 50 feet. Almost as the brakes are pressed slightly.

POWER TRAIN

My truck is experiencing what is commonly known as the Chevy shakes. Whenever the transmission goes over 2000RPM or below 2000RPM my truck jumps. Also, the rear wheels lock up for a short time while I start driving for about 50 feet. Almost as the brakes are pressed slightly.

ENGINE

My vehicle has almost 53,000 miles, I went for an oil change, hasn't even been 5,000 miles since last one, and I had no oil on the dipstick. I wanted to get it changed before a short trip. Glad I did. This could have caused the engine to blow up. I didn't know new vehicles could lose oil like that . The problem was confirmed by an independent oil change station where I always go. No inspections have been done by anyone. No warning lights came on telling me that the oil was low. No other issues prior to this.

STRUCTURE:BODY

Tailgate operation failure. The tailgate switch appears to be operating when no button is pressed. When vehicle is unlocked or key fob near vehicle tailgate automatically goes down on own. Component is available upon request. Appears to be tailgate release switch 85734717. Safety at risk as although it does not open in driving it does when stopped and in park. Tailgate went down and driver failed to realize this as component had failed and it had been put up and driver drove forward so unable to witness it down as truck was not in reverse. Upon driving forward materials in bed of truck were dispersed in roadway until driver realized tailgate had come down just prior to pulling away. Causes a safety hazard to drivers and others on road. Problem has happened in park and has not been taken into dealer yet as it is out of dealer warranty. Vehicle not inspected by anyone else. No lamps displayed prior to or following failure. No lift gate down warning. Safety failure

POWER TRAIN

Vehicle is shifting harshly. Looked up recalls. "Certain" 2021 Silverado 1500's have recall for transmission problem that can cause rear wheels to lock up and cause a crash. GM says my truck is not included in the recall. I have filed an official complaint with GM.

ENGINE

While towing a trailer on a highway during a trip, my truck experienced a catastrophic engine failure with no prior warning. I was driving at highway speeds when the vehicle suddenly lost all engine power, creating an immediate and dangerous situation. I had to use extreme effort to steer the truck and trailer off the road and onto a narrow shoulder. There was no safe breakdown lane, and we were stranded for over eight hours waiting for assistance. Due to the size and weight of the trailer, the truck and trailer had to be towed separately, further complicating the situation. The vehicle was towed to the nearest Chevrolet dealership, where it was diagnosed and confirmed that the engine failure falls under the ongoing 6.2L V8 engine recall. The dealer stated the engine must be replaced under the recall. Unfortunately, that was over eight weeks ago, and I have still received no timeline, no updates, and no meaningful support from either the repairing dealer or the selling dealer (which is located three hours away from the incident site). Since then, my vehicle has remained undrivable, and I have had no access to alternative transportation. I was offered a reimbursement of $44 per day toward a rental car, but the process requires me to pay out-of-pocket and submit extensive documentation for potential reimbursement. Without knowing how long the delay will be, this could result in thousands of dollars in unreimbursed costs, which is simply not sustainable for me. This situation not only created a serious safety risk during the initial breakdown but has left me without reliable transportation for two months, with no indication of when my truck will be repaired. The lack of communication and accountability from GM and its dealerships is unacceptable given the known defect.

POWER TRAIN

Repair & Breakdown Timeline – 2021 Chevy Silverado Owner: [XXX] and [XXX] VIN [XXX] Warranty: Extended vehicle warranty (active) Millenium ________________________________________ 🔧 Repair History Summary Oct 2024 – Issue: Hard shifting; GM recall for purge pump – Action Taken: Purge pump replaced under recall – Status: Returned to owner Nov 19, 2024 – Issue: Continued shifting problems – Action Taken: Transmission replaced – Status: Vehicle kept until Feb 2025 Feb 12, 2025 – Issue: Vehicle returned to owner – Action Taken: GM reimbursed car payments during downtime – Status: Returned to owner April 2025 – Issue: Loss of power; wouldn’t shift past 15 mph – Action Taken: Generic transmission code cleared, no fix – Status: Returned with unresolved issue June 9, 2025 – Issue: Random downshifting; RPM/speedometer erratic – Action Taken: External TCM wire replaced – Status: Returned June 11 June 18, 2025 – Issue: Recurring downshifting issue – Action Taken: Internal TCM wire replaced – Status: Returned June 25 June 27, 2025 – Issue: Hard downshifting, braking sensation during acceleration – Action Taken: Returned to shop – Status: Ongoing •7 total repair visits, 4 of them since February 2025 transmission replacement •Symptoms continue despite following GM’s repair instructions •Dealership has followed GM repair guidance each time •Vehicle remains a safety risk, especially with children onboard •Similar Silverado models have recalls, but this VIN is not include I have two young children, and this vehicle has now placed us in extremely unsafe situations multiple times. We’ve been stranded in traffic, unable to accelerate, and fearful for our safety. Despite repair after repair, the problem continues. At this point, I do not believe this truck can be fixed, and I am unwilling to keep driving it—or trade it in knowing another family could end up in the same dangerous situation. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

POWER TRAIN

As I am driving, the truck shutters off and on and its shifts hard when shifting gears. I drive long distances daily and if the transmission fails, this could cause an accident that could put the safety of my children’s lives, or mine, at risk. It has not yet been inspected, but I spoke with several transmission specialists and have been told this is a very common issue among 2021, and other year models close to that, Chevrolet Silverados. The cost for confirmation would be upwards of $1000, which is not something I am able to afford. There have not been any warning lights or lamps. Only shuttering and harsh shifting.

POWER TRAIN

Unknown transmission failure

POWER TRAIN

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at various speeds, the transmission was shifting hard. The contact stated that the failure recurred while driving at 70 MPH. The vehicle was taken to the dealer where it was purchased for diagnostic testing, but the cause of the failure could not be determined. The contact used a scanner and retrieved DTC: B3205-4B-BCM, and a message that the steering column circuit was locked. Additionally, the scanner displayed a notification of NHTSA Campaign Number: 24V797000 (Power Train); which the contact related to the failure. The dealer informed the contact that the VIN was not included in the recall and referred the contact to a Chevrolet dealer for assistance. The vehicle was not repaired. The manufacturer was notified of the failure and informed the contact that assistance could not be provided because the VIN was not included in the recall. The failure mileage was approximately 100,000.

SERVICE BRAKES

2021 Silverado 1500 TrailBoss LT Brake Sensor Monitor failure causes you not to be able to see brake pad wear/life remaining on dash information. Brake Pads (front and rear) replaced with sensor on 12/14/2023 and was unable to reset the brake pad monitor on dash (would not reset passed 51%) at approx 32K miles 01/2024, Front Left Sensor Monitor replaced again by dealership for $293 06/2025 Truck prompting if brake pads were replaced recently on dashboard 06/13/25 Brake Pad Life showing at 71% Front and 77% Rear at approx 50K miles 06/14/25, Brake Pad Sensor Monitor Error Message

POWER TRAIN

My vehicle started shuttering approximately after 128,000 miles. I took it to a Edwards Chevrolet dealership near my home to have it serviced. I wa told that the transmission was going out and needed to be replaced.

FUEL/PROPULSION SYSTEM

Failure of the coolant flow control valve and DEF component. Caused the engine to overheat and potentially fail while driving. The part to repair this problem has been very difficult to obtain causing a prolonged period of time in a repair shop. According to online forum information this an ongoing problem with this particular engine for over 4 years now. In my general area there are 6 vehicles that are in need of this particular part before they can be repaired. This is definitely not an isolated incident.

ENGINE

Failure of the coolant flow control valve and DEF component. Caused the engine to overheat and potentially fail while driving. The part to repair this problem has been very difficult to obtain causing a prolonged period of time in a repair shop. According to online forum information this an ongoing problem with this particular engine for over 4 years now. In my general area there are 6 vehicles that are in need of this particular part before they can be repaired. This is definitely not an isolated incident.

POWER TRAIN

At approximately 67,000 miles I noticed upon starting and putting it in gear the motor would rev/clunk while going into gear. Shifting from one gear to another the truck would shutter. Did not feel safe driving any distance because the truck would lock up when trying to put it in gear. I had the truck looked at after reading numerous complaints about this 8 speed transmission and wanted to make sure it was safe to drive. After test driving it a couple of times during the course of a day it was determined the transmission needed to be replaced/rebuilt. At no time did any warnings appear on the display indicating there was an issue. I had the transmission rebuilt but feel like there are many complaints and no recalls regarding this same issue.

ENGINE

While traveling at highway speed an engine lifter collapsed and I was left stranded with a flashing check engine light, severe engine knocking and lack of power.

FUEL/PROPULSION SYSTEM

Check engine light is on, code reads emissions fail due to the Evaporative Emissions leak detection pump.( EVAP PURGE PUMP UNDERSPEED) P1467. I see this was a recall on several Chevrolet vehicles but not yet on mine.

ENGINE

Check engine light is on, code reads emissions fail due to the Evaporative Emissions leak detection pump.( EVAP PURGE PUMP UNDERSPEED) P1467. I see this was a recall on several Chevrolet vehicles but not yet on mine.

ENGINE

Engine siezed while on a roadway that speed limit was 75 miles per hour. Was also actively pulling a trailer. Luckily avoided traffic in pulling off to the side of the road and was stuck there for about 8 hours on the side of the road. It broke down 5 hours from home.

ELECTRICAL SYSTEM

My 2021 Silverado has the same issue as the current recall, whereas the tailgate open by itself when the vehicle is operations. This happens when it rains. The first time I noticed it I lost a cooler out of the back of my truck on the interstate highway. The second time it came down when hauling a trailer and cause minor damage to the tailgate. I have since removed the fuse that controls the tailgate. I notified Chevrolet of the issue, but the stated that my truck is not under the current recall.

ENGINE AND ENGINE COOLING

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at an undisclosed speed, the oil pressure level fluctuated between 60 and 0. The contact stated that the low-pressure oil warning light was illuminated. The contact stated that the oil level was continually being topped off. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The dealer was made aware of the failure but provided no assistance. In addition, the contact was advised to have an oil change every 1,000 miles while waiting for the recall repair to be performed. The contact received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the failure. The failure mileage was 40,000. VIN tool confirms parts not available.

POWER TRAIN

Transmission is changing hard and jerking

SUSPENSION

1st incident cracked frame/suspension support for front suspension, 4 months to fix, 2nd incident oil pump, lifter failure, replaced under warranty. 3rd failure engine sieze while driving at 55-60 mph. Warning light flashed loss of oil pressure shut down immediately, put it in neutral to coat to side of road but moment I shifted to N engine failed, had to tow home cuz dealer was a month out to look at it, had to send to a different dealership 60 miles away to get looked at, confirmed castrophic engine failure, GM dealer wanted me to pay to fix it. I have had 2 major engine issues, 1 major suspension frame issue.

STEERING

1st incident cracked frame/suspension support for front suspension, 4 months to fix, 2nd incident oil pump, lifter failure, replaced under warranty. 3rd failure engine sieze while driving at 55-60 mph. Warning light flashed loss of oil pressure shut down immediately, put it in neutral to coat to side of road but moment I shifted to N engine failed, had to tow home cuz dealer was a month out to look at it, had to send to a different dealership 60 miles away to get looked at, confirmed castrophic engine failure, GM dealer wanted me to pay to fix it. I have had 2 major engine issues, 1 major suspension frame issue.

ENGINE

1st incident cracked frame/suspension support for front suspension, 4 months to fix, 2nd incident oil pump, lifter failure, replaced under warranty. 3rd failure engine sieze while driving at 55-60 mph. Warning light flashed loss of oil pressure shut down immediately, put it in neutral to coat to side of road but moment I shifted to N engine failed, had to tow home cuz dealer was a month out to look at it, had to send to a different dealership 60 miles away to get looked at, confirmed castrophic engine failure, GM dealer wanted me to pay to fix it. I have had 2 major engine issues, 1 major suspension frame issue.

ENGINE

The Vehicle that I own is a 2021 Chevrolet Silverado 1500 with a 6.2 liter engine. on 6/2/2025 i went to have the oil changed and the service technician informed me there was no oil in the engine. He also informed me that this particular model with the 6.2 liter engine had a recall relating to components in the engine. After researching I found that there was in fact a recall, but my truck was not listed on the NHTSA web site. I made a visit to the local dealership and the service manager informed me that there was in fact a recall but there was nothing they could do at this time. He suggested that I check the oil level every 500 miles and wait on a recall notice. Now the engine is starting to make internal noises that concern me greatly. There is a opportunity that the engine could simply lock up and there is no certainty on what might happen. Please advise

POWER TRAIN

Vehicle started with vibration at speed 45mph and sometimes it gets worse already balance the wheels twice and same issue so I took it to another shop and they found that my vehicle has hesitation and shuddering also really hard down shift

ENGINE

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while leaving a parking spot and driving approximately 5-10 MPH, there was an abnormal knocking sound coming from the engine before the vehicle lost motive power. There were no warning lights illuminated. The vehicle was towed to the local dealer and was diagnosed with engine failure. The vehicle was repaired. The contact stated that the vehicle had experienced catastrophic engine failure two years prior to the recent failure. The manufacturer was contacted and informed the contact that the VIN was not under recall. The failure mileage was 20,000.

ENGINE

I am facing my second coolant control valve replace in the last 10k miles. The truck errors with a code of P1098 due to the valve failure and the fan continues to run. My truck was then put into limp mode. This valve is a know problem with this motor and not cover under warranty.

AIR BAGS

I was on my way home from work on [XXX] coming around the lakes with no median or shoulder when the engine in my 2021 Silverado started rattling, temperature gauge started going up, and losing power. Within a matter of minutes my truck shut off leaving me stranded in the middle of a four lane highway with no safe location to stop. The engine wouldn’t even turn over to try and crank back up so I could get the truck out of the road. After help getting my truck to a safe location I noticed oil and antifreeze leaking out of the bottom side of the engine. This truck was at Love Chevrolet for engine failure on 8/14/24 and was told it was fixed and was never told about ongoing issues with this particular 6.2 engine. I found out a few weeks ago while trying to trade my truck in to Jim Browne Chevrolet dealer that my particular truck the 2021 Chevrolet Silverado High Country with the 6.2 engine had known issue with the engine locking up and was afraid to take my truck in on trade due to his service manger going through this same experience. So I paid top dollar for a high end Chevrolet truck to be stuck with not being able to trade it and now not being able to drive it. I called the dealer and was told that my trucks vin number was not part of the recall for this issue but there are trucks that are the same year, model, and engine type that are covered under this recall. I’m now stuck making a 850 a month payment on a 58000 dollar truck that I can’t drive and can’t afford to replace an engine. Any help would be greatly appreciated. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

STEERING

I was on my way home from work on [XXX] coming around the lakes with no median or shoulder when the engine in my 2021 Silverado started rattling, temperature gauge started going up, and losing power. Within a matter of minutes my truck shut off leaving me stranded in the middle of a four lane highway with no safe location to stop. The engine wouldn’t even turn over to try and crank back up so I could get the truck out of the road. After help getting my truck to a safe location I noticed oil and antifreeze leaking out of the bottom side of the engine. This truck was at Love Chevrolet for engine failure on 8/14/24 and was told it was fixed and was never told about ongoing issues with this particular 6.2 engine. I found out a few weeks ago while trying to trade my truck in to Jim Browne Chevrolet dealer that my particular truck the 2021 Chevrolet Silverado High Country with the 6.2 engine had known issue with the engine locking up and was afraid to take my truck in on trade due to his service manger going through this same experience. So I paid top dollar for a high end Chevrolet truck to be stuck with not being able to trade it and now not being able to drive it. I called the dealer and was told that my trucks vin number was not part of the recall for this issue but there are trucks that are the same year, model, and engine type that are covered under this recall. I’m now stuck making a 850 a month payment on a 58000 dollar truck that I can’t drive and can’t afford to replace an engine. Any help would be greatly appreciated. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

ENGINE

I was on my way home from work on [XXX] coming around the lakes with no median or shoulder when the engine in my 2021 Silverado started rattling, temperature gauge started going up, and losing power. Within a matter of minutes my truck shut off leaving me stranded in the middle of a four lane highway with no safe location to stop. The engine wouldn’t even turn over to try and crank back up so I could get the truck out of the road. After help getting my truck to a safe location I noticed oil and antifreeze leaking out of the bottom side of the engine. This truck was at Love Chevrolet for engine failure on 8/14/24 and was told it was fixed and was never told about ongoing issues with this particular 6.2 engine. I found out a few weeks ago while trying to trade my truck in to Jim Browne Chevrolet dealer that my particular truck the 2021 Chevrolet Silverado High Country with the 6.2 engine had known issue with the engine locking up and was afraid to take my truck in on trade due to his service manger going through this same experience. So I paid top dollar for a high end Chevrolet truck to be stuck with not being able to trade it and now not being able to drive it. I called the dealer and was told that my trucks vin number was not part of the recall for this issue but there are trucks that are the same year, model, and engine type that are covered under this recall. I’m now stuck making a 850 a month payment on a 58000 dollar truck that I can’t drive and can’t afford to replace an engine. Any help would be greatly appreciated. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

ENGINE

Motor failed. 140k miles shouldn’t happen on a 2021. Meticulously maintained.

ENGINE

While driving my truck at approximately 50mph it suddenly lost power while in traffic. I was fortunate enough to pull over safely to avoid an accident. The motor was violently shaking and sounded like it was coming apart internally. Almost every warning light on the dashboard came on as I was pulling over. The truck had little power and did not sound normal. I immediately called for a tow truck and had it towed to the nearest Chevrolet dealership. After inspection they confirmed the lifters were bad. The truck had 38,000 original miles on it at the time of this incident. The dealership repaired the defective lifters. With the current GM recall on the 6.2 liter engine my truck does not qualify as it was built 1 month prior to the recall date. This truck needs to be included in the current 6.2 liter engine that GM is recalling. The motor is defective and is a major safety issue. If I was driving with my family on the highway while this abrupt incident happened it could have been catastrophic. There were no signs or warnings whatsoever prior to this incident.

ENGINE

Took my vehicle in on 3/24/2025 for an oil change and to check a perceived issue with transmission hesitation and a noise. Tech confirmed and repaired an issue in the transmission and also confirmed an issue within the engine. A replacement engine was ordered. Vehicle is still at the dealer awaiting the engine with no estimate as to when the engine will be shipped or received. It has now been well over 2 months. A loaner vehicle was provided on 4/30/2025 but is not comparable to my vehicle.

ENGINE

blown engine 6.2 L87 motor

ENGINE

Engine failure with no warning. Driving home from dinner, made a right at a stop light and then warning lights and knocking sound in engine compartment, truck noticeably shaking

ENGINE

First my engine light came on and as I was in my way to the dealership I lost my brakes. It stayed at the shop for a week before I was contacted only for them to tell me that there was metal shaving in my engine oil and they recommend full replacement, meanwhile haven’t even made it to my brakes. GM offered me 3K toward replacing the 13K+ engine. That’s so unacceptable!

SERVICE BRAKES

First my engine light came on and as I was in my way to the dealership I lost my brakes. It stayed at the shop for a week before I was contacted only for them to tell me that there was metal shaving in my engine oil and they recommend full replacement, meanwhile haven’t even made it to my brakes. GM offered me 3K toward replacing the 13K+ engine. That’s so unacceptable!

ENGINE AND ENGINE COOLING

The contact owned a 2021 Chevrolet Silverado 1500. The contact stated that while coming to a stop, the contact heard a loud sound coming from the engine compartment. The check engine warning light was illuminated. The contact received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the part to do the repair was unavailable. The vehicle was taken to the dealer, where it was diagnosed and determined that the connecting rod and the crankshaft engine components had failed, and the engine needed to be replaced. The vehicle was not repaired, and the dealer confirmed that parts were not yet available. The manufacturer was not made aware of the failure. The failure mileage was approximately 70,000. Parts distribution disconnect.

ENGINE

May 3, 2025 while driving home truck starting making noise and all the dash lights started blinking including the 'check engine' light. Felt not safe to drive, afraid I would lose control of truck. Immediately pulled over and called dealership who advised to have truck towed in. Truck is still in shop and apparently needs a new engine, problem seems to be the same as the recalls for engines made in 2021-2024. The engine on my truck was manufactured in 2020 and not part of the current recall. This is the 2ND time engine has failed. June 7, 2021 at 4,600 miles again driving and engine started making noise, all dash lights flashing. Again didn't feel truck was safe to drive. Towed to dealership. Cause was a 'failure of lifters on cylinder 5 and a bent push rod.

FUEL/PROPULSION SYSTEM

Engine started making clicking noise when accelerating. Followed by a large screeching noise. Dash read "shift to neutral and start again" pulled to stop and tried to start. Does not crank at all.

ELECTRICAL SYSTEM

Engine started making clicking noise when accelerating. Followed by a large screeching noise. Dash read "shift to neutral and start again" pulled to stop and tried to start. Does not crank at all.

ENGINE

Engine started making clicking noise when accelerating. Followed by a large screeching noise. Dash read "shift to neutral and start again" pulled to stop and tried to start. Does not crank at all.

ENGINE

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving approximately 65-70 MPH, the vehicle stalled. The contact stated that several unknown warning lights were illuminated. The message “Reduced Power” was displayed. The vehicle was taken to a local dealer where it was diagnosed and determined that the lifters and push rods needed to be replaced. The vehicle was repaired but the failure recurred. The contact stated that the vehicle started to smoke while driving. The vehicle was taken back to the local dealer but was not diagnosed or repaired. The manufacturer was contacted and opened a case. The failure mileage was approximately 7,000.

ENGINE

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at various speeds, several unknown messages were displayed before the vehicle shifted to SAFE Mode. Additionally, the contact disconnected and reconnected the battery and restarted the vehicle. The vehicle was taken to a local dealer, where it was diagnosed with a particulate filter failure. The vehicle was repaired; however, the check engine warning light illuminated. The vehicle was taken to another local dealer, Prince Chevrolet Service (4550 N Valdosta Rd, Valdosta, GA 31602); where it was diagnosed, and the contact was informed that the exhaust pressure sensor pipe and exhaust gas recirculation cooler needed to be replaced. The vehicle was repaired; however, the failure persisted. The vehicle was later taken to another local dealer, Nash Chevrolet (630 Scenic Hwy S, Lawrenceville, GA 30046) for a third opinion and was diagnosed with a clogged catalytic converter. The contact was informed that the NOS sensor, EGR Cooler, and DEF fluid injector needed to be replaced. The vehicle was repaired; however, the check engine warning light was illuminated. In addition, the message "LIMP Mode" was displayed on the instrument panel. The manufacturer was made aware of the failure. The failure mileage was approximately 395.

POWER TRAIN

At 2000 miles my truck developed a new “fluttering”, “ticking sound” once all cylinders reactivated as apart of the dynamic fuel management system. After bringing the truck to dealership, they proceeded to replace the lifters, the exhaust system twice, and performed a computer reflash. The truck was at the dealership for over 45 days within the first 6 months of ownership. After all the repairs, the sound is still audible and getting worse. In addition to this sound, at around 30,000 miles the transmission has now developed an audible clunking sound that can be felt once on release the gas peddle under slower operating speeds. After trying to engage with GM on simply understanding what the problem is and why there is the need for so much repair on a brand new vehicle, I am candidly fed up and let down as long term GM customer.

ENGINE

At 2000 miles my truck developed a new “fluttering”, “ticking sound” once all cylinders reactivated as apart of the dynamic fuel management system. After bringing the truck to dealership, they proceeded to replace the lifters, the exhaust system twice, and performed a computer reflash. The truck was at the dealership for over 45 days within the first 6 months of ownership. After all the repairs, the sound is still audible and getting worse. In addition to this sound, at around 30,000 miles the transmission has now developed an audible clunking sound that can be felt once on release the gas peddle under slower operating speeds. After trying to engage with GM on simply understanding what the problem is and why there is the need for so much repair on a brand new vehicle, I am candidly fed up and let down as long term GM customer.

POWER TRAIN

Pulling out to an intersection my 2021 chevy Trailboss stopped going forward. All I had was reverse. Fortunately cars stopped and no one was injured. The truck was towed to a chevy dealership and was inspected and said that the transmission went out on it. The service manager told me that the "transmissions that were put in these trucks were not good" No warning lights ever came on prior to this incident. There was a recall for transmission problems for other chevy models however I have been told that my truck does not qualify for the recall.

ENGINE

At 38,000 miles: While driving, the engine began knocking, vibrating and shut off. The check engine light came on and the vehicle could not be restarted. It was towed to the dealer who diagnosed it with lifter failure. It was still under the powertrain warranty at this time. Several lifters were replaced as well as other engine parts and I was given the truck back after a few weeks. A week later, truck would not start. After looking under the hood I noticed most of the hoses and wires were not clipped off, causing them to just rattle and move around. Upon further investigation, I found that the wire to the starter was loose and had to be wiggled to get the truck to start. This wire should have been secured to the vehicle with the provided clips, but it was not and came loose because of it. I also found a random loose bolt lying in a void space under the hood near the windshield. I took the truck back to the dealership that replaced the lifters and explained my frustration with the condition my truck was put back together after tearing into the engine. I also showed them the random bolt I found. Their manager assured me that they would go through the engine compartment and make sure that the wires and cables were properly secured to the side like it should have been after the initial engine work. I never received an explanation of where the random bolt came from. After this engine work, my truck never seemed to drive the same. It began use more oil and the fuel MPG decreased. I reported to the dealer on the oil consumption and they had me start an oil consumption test. 600 miles after the oil change my engine light came on, truck began to run rough and make a loud engine rattle noise. I took it back to the dealer for a diagnosis. They called back and said that there was a lot of metal in my oil when they drained it. They contacted GM and are scheduled to open the engine up to find out if it can be fixed or needs a new engine. Currently at 52000 miles

POWER TRAIN

The truck, while driving at highway speeds on the interstate, experienced catastrophic engine failure, seizing the motor while in driving. Luckily, I was able to pull the truck to the side of the road safely, without a crash occurring. Losing engine/braking power could have been a major concern but thankfully, traffic was light enough I had space to pull to the side of the road. The truck had to be towed to the nearest dealer, where it was discovered the motor had seized. 2021 Chevrolet Silverado Trail Boss 6.2L motor with 47k miles on the factory warranty/no modifications. Since taking the truck to the dealer, they warranty-swapped a remanufactured crate motor in the truck. Hearing of the major increase in issues with this truck, I traded it in on a different manufacturer and now have a different vehicle. Aside from this huge inconvenience and safety issue, GM's customer support line failed to cover the full cost for a rental truck while my vehicle was down for a new motor (late November 2024 until mid January 2025) and I still have yet to receive a refund for my tow bill. This experience that has now lasted almost 6 months (still with no resolution) has been horrible. I hope General Motors is held liable for this major issue.

ENGINE

The truck, while driving at highway speeds on the interstate, experienced catastrophic engine failure, seizing the motor while in driving. Luckily, I was able to pull the truck to the side of the road safely, without a crash occurring. Losing engine/braking power could have been a major concern but thankfully, traffic was light enough I had space to pull to the side of the road. The truck had to be towed to the nearest dealer, where it was discovered the motor had seized. 2021 Chevrolet Silverado Trail Boss 6.2L motor with 47k miles on the factory warranty/no modifications. Since taking the truck to the dealer, they warranty-swapped a remanufactured crate motor in the truck. Hearing of the major increase in issues with this truck, I traded it in on a different manufacturer and now have a different vehicle. Aside from this huge inconvenience and safety issue, GM's customer support line failed to cover the full cost for a rental truck while my vehicle was down for a new motor (late November 2024 until mid January 2025) and I still have yet to receive a refund for my tow bill. This experience that has now lasted almost 6 months (still with no resolution) has been horrible. I hope General Motors is held liable for this major issue.

AIR BAGS

Airbags did not deploy after a collision based accident

ENGINE

I have a 2021 Chevrolet Silverado 1500 with a 6.2 L engine. There seems to be a recall on this model and particular motor but my VIN does not show up. My engine has failed as described in the recall. I have a bearing failure on the crank according to my mechanics shop. Please add my VIN to the recall so I can get this problem repaired. I have been without my vehicle now for over a month and would appreciate assistance on this problem.

ENGINE

Engine knocking brought to dealership and they found codes P0300 and P0304 #4 cylinder with 15,000 then remove head and so order new engine from General Motors

ENGINE AND ENGINE COOLING

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while operating the vehicle, there was a popping sound coming from the engine compartment, and the vehicle decelerated unintendedly and started driving rough. The vehicle was driven to the local mechanic who diagnosed an engine cylinder misfire. The mechanic replaced the fuel injector and engine lifter, and the vehicle was repaired. The contact stated that recently while driving, the same popping sound reoccurred, and the vehicle started to lose motive power. The vehicle was towed to the local mechanic who determined that the engine had failed. The exact cause of the engine failure was not determined. The manufacturer was notified of the failure, but no assistance was offered. The contact was informed that the VIN was not included in the NHTSA Campaign Number: 25V274000 (ENGINE AND ENGINE COOLING). The contact stated that the vehicle had experienced the failure listed in the recall. The failure mileage was 42,239.

ENGINE AND ENGINE COOLING

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while his wife was driving 35 MPH, the vehicle was making abnormal sounds. The driver drove the vehicle back to the residence. While driving at undisclosed speeds, there was an abnormal ticking and knocking sound coming from the vehicle. The contact stated that the sound went away and came back. While driving at an undisclosed speed, the vehicle lost motive power and stalled. The contact stated that the engine warning light was illuminated. The contact stated that the failure was related to NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the VIN was not included. The vehicle was taken to the local dealer, but the vehicle was not diagnosed or repaired. The dealer informed the contact missed an oil change and was negligent in servicing the vehicle. The vehicle was not diagnosed or repaired. The manufacturer was contacted. The failure mileage was approximately 67,000.

ENGINE

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while his wife was driving 35 MPH, the vehicle was making abnormal sounds. The driver drove the vehicle back to the residence. While driving at undisclosed speeds, there was an abnormal ticking and knocking sound coming from the vehicle. The contact stated that the sound went away and came back. While driving at an undisclosed speed, the vehicle lost motive power and stalled. The contact stated that the engine warning light was illuminated. The contact stated that the failure was related to NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the VIN was not included. The vehicle was taken to the local dealer, but the vehicle was not diagnosed or repaired. The dealer informed the contact missed an oil change and was negligent in servicing the vehicle. The vehicle was not diagnosed or repaired. The manufacturer was contacted. The failure mileage was approximately 67,000.

STEERING

I am filing a formal safety complaint regarding a persistent and unacceptable failure with my 2021 Chevrolet Silverado Trail Boss. The vehicle intermittently fails to start due to a recurring “Service Steering Column Lock” error. While the key fob still locks, unlocks, and remote starts the truck, the push-to-start system becomes entirely non-functional once inside the vehicle. This defect is not only frustrating — it’s dangerous. My wife has already been stranded twice, once in below-freezing temperatures in January, and again in May, causing her to be late for work and left alone at night in unsafe conditions. A truck purchased for over $60,000, marketed as rugged and dependable, should not be experiencing a critical failure like this at just 48,000 miles. What’s more concerning is that this appears to be a known issue within the GM community, with no official recall despite Technical Service Bulletins (TSBs) acknowledging the problem. Customers are being left with unreliable transportation and no consistent fix. This failure is both a mechanical and safety issue, leaving drivers vulnerable without warning. I urge NHTSA to investigate this defect, pressure GM for a formal recall, and ensure corrective action is taken before someone is injured due to being stranded or the failure progressing to more critical steering or ignition malfunctions.

ENGINE

I am filing a formal safety complaint regarding a persistent and unacceptable failure with my 2021 Chevrolet Silverado Trail Boss. The vehicle intermittently fails to start due to a recurring “Service Steering Column Lock” error. While the key fob still locks, unlocks, and remote starts the truck, the push-to-start system becomes entirely non-functional once inside the vehicle. This defect is not only frustrating — it’s dangerous. My wife has already been stranded twice, once in below-freezing temperatures in January, and again in May, causing her to be late for work and left alone at night in unsafe conditions. A truck purchased for over $60,000, marketed as rugged and dependable, should not be experiencing a critical failure like this at just 48,000 miles. What’s more concerning is that this appears to be a known issue within the GM community, with no official recall despite Technical Service Bulletins (TSBs) acknowledging the problem. Customers are being left with unreliable transportation and no consistent fix. This failure is both a mechanical and safety issue, leaving drivers vulnerable without warning. I urge NHTSA to investigate this defect, pressure GM for a formal recall, and ensure corrective action is taken before someone is injured due to being stranded or the failure progressing to more critical steering or ignition malfunctions.

ELECTRICAL SYSTEM

I am filing a formal safety complaint regarding a persistent and unacceptable failure with my 2021 Chevrolet Silverado Trail Boss. The vehicle intermittently fails to start due to a recurring “Service Steering Column Lock” error. While the key fob still locks, unlocks, and remote starts the truck, the push-to-start system becomes entirely non-functional once inside the vehicle. This defect is not only frustrating — it’s dangerous. My wife has already been stranded twice, once in below-freezing temperatures in January, and again in May, causing her to be late for work and left alone at night in unsafe conditions. A truck purchased for over $60,000, marketed as rugged and dependable, should not be experiencing a critical failure like this at just 48,000 miles. What’s more concerning is that this appears to be a known issue within the GM community, with no official recall despite Technical Service Bulletins (TSBs) acknowledging the problem. Customers are being left with unreliable transportation and no consistent fix. This failure is both a mechanical and safety issue, leaving drivers vulnerable without warning. I urge NHTSA to investigate this defect, pressure GM for a formal recall, and ensure corrective action is taken before someone is injured due to being stranded or the failure progressing to more critical steering or ignition malfunctions.

ENGINE AND ENGINE COOLING

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving 70 MPH, the vehicle jerked and failed to accelerate as intended while depressing the accelerator pedal. The contact stated that the engine seized. The check engine warning light was illuminated before the failure. The contact was able to coast to the side of the road. The contact stated that the vehicle was towed to Midas, where it was diagnosed and determined that the fuel pump control unit had failed and needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The contact related the failure to NHTSA Campaign Number: 25V274000 (ENGINE AND ENGINE COOLING); however, the VIN was not included. The failure mileage was approximately 57,000.

ENGINE

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving approximately 40 MPH, the vehicle started shaking abnormally, and the vehicle lost motive power. The contact stated that the check engine warning light was illuminated. The vehicle was taken to the residence. The vehicle was then towed to a dealer where it was diagnosed with engine failure. The contact was informed that some undisclosed parts needed to be replaced. The vehicle was repaired but the contact stated that the vehicle was still shaking slightly. The manufacturer was notified of the failure. The failure mileage was 92,000.

ENGINE AND ENGINE COOLING

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that upon starting the vehicle, there was an abnormal tapping sound coming from the engine, with the check engine warning light displayed on the instrument panel. The contact stated that while driving at various speeds, the vehicle jerked and hesitated while depressing the accelerator pedal. The vehicle was taken to an independent mechanic and a dealer, where diagnostic tests were performed. The contact was informed that the engine lifters were defective; therefore, the engine needed to be replaced. Recently, the contact stated that while at a stoplight, the vehicle shut off and failed to restart. Due to the failure, the contact had the vehicle towed to the residence. The vehicle was not repaired. A mechanic later informed the contact about NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, upon investigation, the contact discovered that the VIN was not included in the recall. The manufacturer was then notified of the failure and confirmed that the vehicle was not included in the recall. The contact was then referred to the NHTSA Hotline to report the failure. The failure mileage was approximately 97,000.

POWER TRAIN

Shuddering when driving. Erratic shifting and downshifting.

ENGINE

The 6.2 is using 1-1.5 QT. every 3000 or so miles. I have done the check every 1000 miles. Had a bent lifter replaced 2 christmas ago.

POWER TRAIN

this is 6.2 l l87 engine that is being recalled but this vin is not on list. already had lifters and rods replaced while back. coming home from trip truck made awful noise and I lost power on the interstate. thankfully was able to get out of traffic but waited 3.5 hours for tow. at dealer but cant tell me when they can look at it. 60,200 miles and they are saying well we will see what we can do but your powertrain warranty ended at 60k. i have had numerous problems and these are all known by gm especially 2021 6.2l.

ENGINE

this is 6.2 l l87 engine that is being recalled but this vin is not on list. already had lifters and rods replaced while back. coming home from trip truck made awful noise and I lost power on the interstate. thankfully was able to get out of traffic but waited 3.5 hours for tow. at dealer but cant tell me when they can look at it. 60,200 miles and they are saying well we will see what we can do but your powertrain warranty ended at 60k. i have had numerous problems and these are all known by gm especially 2021 6.2l.

ENGINE AND ENGINE COOLING

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving 70 MPH, there was an abnormal clunking sound coming from the engine compartment, and the contact discontinued driving the vehicle. No warning lights were illuminated. The vehicle was towed to the dealer, who diagnosed a failure with the push rod in cylinder 5. The vehicle was repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); but the VIN was not included. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was 64,000.

POWER TRAIN

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving on several occasions at various speeds, the temperature gauge remained at hot (Hot) location, with a dinging warning notification. The check engine and "Transmission idle temperature high" messages were displayed. The vehicle was steered to the side of the road each time and turned off for approximately 45 minutes to allow the vehicle to cool down. The vehicle was taken to a dealer where it was diagnosed and determined that the transmission needed to be replaced. The vehicle was not repaired. The vehicle was then taken to an independent mechanic where it was determined that the transmission needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 115,000.

ENGINE AND ENGINE COOLING

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving on several occasions at various speeds, the temperature gauge remained at hot (Hot) location, with a dinging warning notification. The check engine and "Transmission idle temperature high" messages were displayed. The vehicle was steered to the side of the road each time and turned off for approximately 45 minutes to allow the vehicle to cool down. The vehicle was taken to a dealer where it was diagnosed and determined that the transmission needed to be replaced. The vehicle was not repaired. The vehicle was then taken to an independent mechanic where it was determined that the transmission needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 115,000.

UNKNOWN OR OTHER

A knocking noise coming from the left side drivers wheel

ENGINE

Driving to work my engine failure light came on….the engine immediately sputtered. I immediately drove inside the bay at Ozark Chevrolet. As soon as I pulled in….the technician told me to turn it off and that I wouldn’t be driving it anymore. See my statement for $3,429.15. I have to carry my grandkids in this vehicle. I traded it in on Tundra. And now I find out about the recall. It was the 8cyl engine currently under recall.

ENGINE

Service Engine Soon lamp illuminated with extremely rough running engine, would barely keep running. Dealer diagnosed misfires on cylinders 1, 3, 7, with cylinder 5 showing the most misfires. Tear down revealed defective lifter on cylinder 5. Repair under warranty included replacing all bank 1 lifters. Mileage of vehicle was 19566 at time of repair

ENGINE

Driving the truck at 45 mph, the engine stalled and the dash had all the lights on showing codes. Had it towed home and called the dealership the next business day. I was told it was the drive belt pulley that had gone bad causing loss of engine power. I had that replaced and the dealership then told me that the lifters were bad. I had to get that replaced because I needed my truck. The dealership had had it for almost three weeks at that point. $1300 to replace a lifter.

ENGINE

The repair estimate includes a complete teardown and replacement of the camshaft, 16 lifters, seals, bolts, gaskets, and associated components. The full cost breakdown is: Labor & Parts Subtotal: $11,402.78 Shop Fees & Tax: $467.13 Total Estimate: $11,869.91 Yes, the vehicle is available for inspection. it has been inspected by a chevrolet dealership and they gave us the above estimate to repair it. The vehicle powered down while driving on the freeway. It has not been inspected by police or insurance representatives, only by the chevrolet dealership service department. No, there were no warning signs prior to it powering down on the freeway. When it stopped producing power needed, the engine light came on as well as emergency brake light. This issue started on the freeway on Tuesday, April 29, 2025. The vehicle is only 4 years with only 130,000 miles and one that has been properly maintained. We believe this failure is not due to neglect or wear, but rather a known manufacturing defect.

ENGINE

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving 70 MPH with the cruise control feature activated, the oil pressure message was displayed, and the vehicle stalled. The vehicle was coasted to the side of the road. The vehicle was not able to be restarted. The vehicle was towed to the residence and then to a dealer to be diagnosed, and the contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 78,000.

UNKNOWN OR OTHER

I purchased this truck 3/20/2025. I have since realized it wasn't me doing something wrong. The truck hesitates and shakes during shifting upon acceleration from a stop and when putting it in park and attempting to turn the truck off it has a message on the display saying "shift to park" and it will not turn off until you repeatedly restart it and play woth the gear shift to get it to register that it's in park. I have made an appointment to take it to the dealership to be looked at. The truck has 75,000 miles on it.

POWER TRAIN

I purchased this truck 3/20/2025. I have since realized it wasn't me doing something wrong. The truck hesitates and shakes during shifting upon acceleration from a stop and when putting it in park and attempting to turn the truck off it has a message on the display saying "shift to park" and it will not turn off until you repeatedly restart it and play woth the gear shift to get it to register that it's in park. I have made an appointment to take it to the dealership to be looked at. The truck has 75,000 miles on it.

ELECTRICAL SYSTEM

I purchased this truck 3/20/2025. I have since realized it wasn't me doing something wrong. The truck hesitates and shakes during shifting upon acceleration from a stop and when putting it in park and attempting to turn the truck off it has a message on the display saying "shift to park" and it will not turn off until you repeatedly restart it and play woth the gear shift to get it to register that it's in park. I have made an appointment to take it to the dealership to be looked at. The truck has 75,000 miles on it.

ENGINE AND ENGINE COOLING

The contact owns a 2021 Chevrolet Silverado 1500. The contact received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue and confirmed that parts were not yet available. The manufacturer was made aware of the issue and confirmed that parts were not yet available. The contact had not experienced a failure. VIN tool confirms parts not available.

POWER TRAIN

The engine rods went bad in the engine and damaged the cam shaft. The vehicle only has 71000 miles on it. The resulting repairs cost approximately $8000. We have been told by the Chevy dealer doing the repairs and also the dealer we bought the truck from that this is a known problem and they have had several vehicles with the 5.3L engine that have needed this same repair.

FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

While driving, engine stop and dash had message to put in neutral and hit start button to restart, but dash would gest go dark and did not restart. Vehicle towed to Wilson and Bell Automotive. After get engine reset I was told engine has loud knocking sound and needs to be replaced. I been going to this shop for over 30 years and trust there description. New engine was ordered. Then found out several days later that GM is going to recall my vehicle 2021 Silverado 1500 6.2 engine due to engine failure.

ENGINE

While driving, engine stop and dash had message to put in neutral and hit start button to restart, but dash would gest go dark and did not restart. Vehicle towed to Wilson and Bell Automotive. After get engine reset I was told engine has loud knocking sound and needs to be replaced. I been going to this shop for over 30 years and trust there description. New engine was ordered. Then found out several days later that GM is going to recall my vehicle 2021 Silverado 1500 6.2 engine due to engine failure.

ENGINE

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving 25 MPH, the vehicle suddenly stalled. The vehicle was able to restart. The instrument panel was illuminated with several unknown service lights. The vehicle was taken to the dealer who diagnosed that the lifters had failed. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was 140,000.

ENGINE

Truck ENGINE completely SHUT down while driving on a high traffic road in my area. Had vehicle towed to my dealer for inspection.

SERVICE BRAKES

I am reporting a safety concern that I believe should be included in an existing or expanded recall for the Chevrolet Silverado. The issue involves engine replacement due to metal shaving being found in oil & brake failure, which occurred on 05/01/2025 The problem with the brakes occurred while I was in heavy traffic in Dallas, Texas multiple times, resulted in multiple near-accident experiences that day. The truck has been diagnosed by a mechanic, at the Chevy dealership and I believe this defect poses a serious safety risk and may be affecting other Silverado vehicles outside the current recall scope. I have driven the vehicle to Chevy and stayed in constant contact with the dealership, had diagnostics done, but the issue has not been resolved. am requesting that the NHTSA investigate whether this issue warrants inclusion in the current recall or a new safety campaign. I have on had this vehicle less than 2 years and I put less than 70K miles on it. I purchased it from vandergriff Chevrolet in Arlington, TX

ENGINE

I am reporting a safety concern that I believe should be included in an existing or expanded recall for the Chevrolet Silverado. The issue involves engine replacement due to metal shaving being found in oil & brake failure, which occurred on 05/01/2025 The problem with the brakes occurred while I was in heavy traffic in Dallas, Texas multiple times, resulted in multiple near-accident experiences that day. The truck has been diagnosed by a mechanic, at the Chevy dealership and I believe this defect poses a serious safety risk and may be affecting other Silverado vehicles outside the current recall scope. I have driven the vehicle to Chevy and stayed in constant contact with the dealership, had diagnostics done, but the issue has not been resolved. am requesting that the NHTSA investigate whether this issue warrants inclusion in the current recall or a new safety campaign. I have on had this vehicle less than 2 years and I put less than 70K miles on it. I purchased it from vandergriff Chevrolet in Arlington, TX

SERVICE BRAKES

Metal shavings were found in my oil after the check engine light came on a day before I took it in. The day that I took it in my brakes limited the speed of my truck to 43 mph due brake malfunction. The dealership called and told me that they recommend engine replacement due to the metal shavings found in the oil. I can give more in depth info as I receive it but I just wanted to alert Chevy that my vehicle is doing the same thing that the others are getting recalled for.

ENGINE

Metal shavings were found in my oil after the check engine light came on a day before I took it in. The day that I took it in my brakes limited the speed of my truck to 43 mph due brake malfunction. The dealership called and told me that they recommend engine replacement due to the metal shavings found in the oil. I can give more in depth info as I receive it but I just wanted to alert Chevy that my vehicle is doing the same thing that the others are getting recalled for.

ENGINE

Engine starting shaking while driving and lost power. With only 33000 miles on engine.

POWER TRAIN

While driving about 75 miles an hour, when the gear was shifting back-and-forth between about seven and eight, there was a loud bang. It happened again with a bang that was not as loud. Something with the transmission. Only have 36k miles on it.

ENGINE AND ENGINE COOLING

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving 60 MPH, the vehicle jerked, and the contact noticed an unusual clicking sound coming from the vehicle. The accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. The vehicle was driven to the residence. The vehicle was taken to the dealer, where it was diagnosed with camshaft failure. The contact was informed that the camshaft needed to be replaced. The vehicle was not repaired. The vehicle had been taken to the dealer twice within a month due to the failure. The manufacturer was made aware of the failure, and a case was filed. The contact had requested a buyback. The failure mileage was approximately 70,000.

ENGINE AND ENGINE COOLING

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving 70 MPH, the vehicle made an abnormal knocking sound. The contact exited the freeway and continued driving 40 MPH; however, the vehicle stalled, and several unknown warning lights were illuminated. The vehicle failed to restart and was towed to the dealer, where it was diagnosed that piston #4 valve had seized, causing damage to the push rod. The dealer took the engine apart and replaced the push rod, the valve, and the head gasket. The contact stated that the failure occurred while driving 70MPH. The vehicle was towed to Team Hodges, INC. Chevrolet (2265 M-76, West Branch, MI 48661), where it was diagnosed that piston #8 valve had seized, causing damage to the camshaft. The dealer replaced the valve, the camshaft, and other unknown parts. The vehicle was repaired. The contact related to the failure to NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling). The manufacturer was notified of the failure and informed the contact that the VIN was not included in the recall. The failure mileage was approximately 10,000.

ENGINE AND ENGINE COOLING

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving at various speeds, there was an abnormal metal-on-metal grinding sound coming from the engine. The contact also stated that whenever the vehicle was started, the engine was making an abnormal knocking sound. There was no warning light illuminated. The contact had not taken the vehicle to a local dealer or independent mechanic. The vehicle was not diagnosed or repaired. The contact had received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The manufacturer was informed of the failure. The failure mileage was approximately 47,000.

ENGINE

Batter dies for when it's cool out side and the truck has a brand new battery. The battery has since I've had the truck .replaced the battery last year and it stills die..when it's cool outside..false reading on brakes had them checked twice at the dealer ship .the truck loses power when turning the corner and I makes a loud clunk nose when I drive..

ELECTRICAL SYSTEM

Batter dies for when it's cool out side and the truck has a brand new battery. The battery has since I've had the truck .replaced the battery last year and it stills die..when it's cool outside..false reading on brakes had them checked twice at the dealer ship .the truck loses power when turning the corner and I makes a loud clunk nose when I drive..

ENGINE

My engine is out due to the piston rings failing and is at a dealership waiting for a new engine. The engine for this vehicle is on national back order with no ETA in sight. Out of nowhere the low oil light came on and I had to stop immediatley to check it as to make sure nothing happened while I was driving down the road. The dealership that has it has confirmed that the issue was due to the pistons. This vehilce was purchased brand new and has had perfect maintenance performed on it since day one. The dealership has inspected the vehicle. The low oil light first came on in February. I took it straight to a place to have them check it and change the oil again just until I could get it to the dealership a few days later. I was advised to have an oil consumption test done. On the 3rd time, which would have been around 3000 miles, it had already consumed more than a quart of oil. They did a borescope and confirmed that the pistons are bad and because of this the inside of the engine is scored. Now I need a new engine on a vehicle that I've taken perfect care of. I believe that this vehicle should be included in the GM recall with the other 6.2 engines as this is also a 6.2 engine in the same year range. I have included the paperwork from the dealership and my carfax showing maintenance.

ENGINE

faulty lifters, causing engine light on, and causing multiple missfires. 2021 5.3 v8 engine. GM has inspected engine and has no solutions, problem first appeared with only 343 miles on new truck.

POWER TRAIN

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving 35-40 MPH, the engine revved; however, the vehicle failed to respond as intended, with the transmission slipping. The message "Engine Power Reduced" was displayed. The contact was able to pull over to the side of the road. The contact was able to drive to the residence at slow speeds. The vehicle was taken to the dealer, where it was diagnosed that the automatic transmission valve needed to be replaced. The dealer replaced the transmission valve. Additionally, the dealer replaced the rear and front differentials and the transfer case. The vehicle was repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 79,882. The VIN was not available.

UNKNOWN OR OTHER

Around May 20th, 2022, I was driving the pickup when it suddenly the engine turned off on me. I was travelling at approximately 40 mph on city streets and was able to control the vehicle and park the vehicle and restart it. That same week, I took the vehicle to Chevrolet on the city of Orange, where it was inspected. According to the mechanic, no issues were located. Nothing else was done to the vehicle and as a result, I fear the same issue will happen again in the future.

ENGINE

Around May 20th, 2022, I was driving the pickup when it suddenly the engine turned off on me. I was travelling at approximately 40 mph on city streets and was able to control the vehicle and park the vehicle and restart it. That same week, I took the vehicle to Chevrolet on the city of Orange, where it was inspected. According to the mechanic, no issues were located. Nothing else was done to the vehicle and as a result, I fear the same issue will happen again in the future.

ENGINE

On March 16, 2025 driving to church in Siloam Springs Arkansas it lost power while going down the road at 45 mph and we started hearing an oddly loud noise and then the check engine light came on. We limped it into the church parking lot. We came out from church and started the engine, there was no check engine light. We pulled out of the church parking lot and started down the road and we got up to 55mph when the oddly loud noise occurred again and check engine light came on. We pulled over and called for a tow to the dealership Superior Chevrolet of Siloam Springs. They found the engine was missing on cylinder #2 and the #2 connecting rod was bent. They found the lifter on #2 exhaust was broken. They inspected the cam and all the lobes looked good. They replaced the right bank of lifters and guides with all gaskets seals and pipes. Changed the oil and filter. Refilled the coolant. Test drove 10 miles and verified operation. It had 58,055 miles when this failure occurred. Our safety was at risk as a result of an immediate loss of power while traveling speeds over 40mph.

ENGINE

Complete engine replacement at 174 miles. Lifters on left bank replaced at approximately 28,000 miles. Lifters right bank replaced at approximately 58,000 miles.

ENGINE

The Engine has unexpectedly spun a rod bearing causing the engine to run erratic, low power and knocking. I have taken it to a automotive repair shop and that is their diagnosis. This is the 6.2 liter that has the issue that has recently had a recall issued but my VIN does not show a recall

POWER TRAIN

Transmission would not select gear then without warning would engage. Loud thuds when changing gears. 10spd automatic.

POWER TRAIN

The engine light is blinking while driving on the highway, it comes and goes, I have a video for that. Also it has a ticking noise and I’ve had the noise since I bought the truck and took it multiple times to the dealership, first it was the pump they replaced for free but the ticking never went away, I took it back and they said that all the trucks tick like that, and all that should be documented. Also while sitting still it sounds like the truck is shacking just a little. I have an appointment to which I have to pay $250 for them just to look at it. I think that my truck should be up under the new recall for the 2021 Chevy Silverado because my truck is knocking and also throwing off a blinking engine light.

FUEL/PROPULSION SYSTEM

The engine light is blinking while driving on the highway, it comes and goes, I have a video for that. Also it has a ticking noise and I’ve had the noise since I bought the truck and took it multiple times to the dealership, first it was the pump they replaced for free but the ticking never went away, I took it back and they said that all the trucks tick like that, and all that should be documented. Also while sitting still it sounds like the truck is shacking just a little. I have an appointment to which I have to pay $250 for them just to look at it. I think that my truck should be up under the new recall for the 2021 Chevy Silverado because my truck is knocking and also throwing off a blinking engine light.

ENGINE

The engine light is blinking while driving on the highway, it comes and goes, I have a video for that. Also it has a ticking noise and I’ve had the noise since I bought the truck and took it multiple times to the dealership, first it was the pump they replaced for free but the ticking never went away, I took it back and they said that all the trucks tick like that, and all that should be documented. Also while sitting still it sounds like the truck is shacking just a little. I have an appointment to which I have to pay $250 for them just to look at it. I think that my truck should be up under the new recall for the 2021 Chevy Silverado because my truck is knocking and also throwing off a blinking engine light.

ENGINE

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at an undisclosed speed, the vehicle hesitated, and the rear wheel seized. The contact was able to coast to the side of the road. The vehicle was taken to Auto Zone; however, no cause for the failure was found. The vehicle was not repaired. The contact stated that on a separate occasion, while driving 15 MPH, the vehicle failed to accelerate as intended while depressing the accelerator pedal and the vehicle stalled. No warning light was illuminated. The vehicle was able to restart; however, reverse(R) was the only operational gear. The vehicle was towed to the dealer. However, the vehicle was not diagnosed or repaired. The contact stated that weeks before the failure, there was an abnormal sound coming from the engine. The manufacturer was not made aware of the failure. The failure mileage was approximately 8,000. .

POWER TRAIN

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at an undisclosed speed, the vehicle hesitated, and the rear wheel seized. The contact was able to coast to the side of the road. The vehicle was taken to Auto Zone; however, no cause for the failure was found. The vehicle was not repaired. The contact stated that on a separate occasion, while driving 15 MPH, the vehicle failed to accelerate as intended while depressing the accelerator pedal and the vehicle stalled. No warning light was illuminated. The vehicle was able to restart; however, reverse(R) was the only operational gear. The vehicle was towed to the dealer. However, the vehicle was not diagnosed or repaired. The contact stated that weeks before the failure, there was an abnormal sound coming from the engine. The manufacturer was not made aware of the failure. The failure mileage was approximately 8,000. .

ENGINE

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at 45 MPH, the vehicle started shaking excessively, prompting the contact to discontinue driving the vehicle. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic, who diagnosed a failure with the lifter in cylinder #7. The vehicle was repaired, but the failure reoccurred 4 years later. The manufacturer was not notified of the failure. The failure mileage was approximately 17,000.

ENGINE AND ENGINE COOLING

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving 65-70 MPH, the vehicle lost motive power and there was an abnormal sound coming from the engine. The check engine warning light was illuminated. The contact was able to pull to the side of the road and turned off the vehicle. The vehicle was towed to the dealer, where it was diagnosed that the engine had failed and needed to be replaced. The dealer determined that the failure was related to NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The dealer informed the contact that the vehicle would be repaired at his expense. The vehicle was not repaired. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the failure and confirmed that the remedy was not yet available. The failure mileage was approximately 77,455. VIN tool confirms parts not available.

ENGINE

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving 40 MPH, there was a clunking sound coming from the engine. The check engine warning light was illuminated. A dealer was contacted. The contact stated that several unknown messages were displayed. The contact stated that an independent mechanic had inspected the vehicle and informed the contact that the engine needed to be replaced. The vehicle was towed to a dealer where it was diagnosed that the lifters and cam phasers needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 43,000.

ENGINE AND ENGINE COOLING

The contact owns a 2021 Chevrolet Silverado 1500. The contact received notification of NHTSA Campaign Number: 25V274000 (ENGINE AND ENGINE COOLING); however, the part to do the recall repair was not yet available. The contact stated that while driving 70 MPH, the vehicle experienced a loss of automotive power before the engine seized. There were no warning lights illuminated. The contact attempted to restart the vehicle; however, the vehicle failed to restart. The contact stated there was an abnormal burning odor coming from the engine. There were no warning lights illuminated. The vehicle was towed to the dealer, where the vehicle was diagnosed that the rod bearings had failed and damaged the engine. The contact was advised that the engine needed to be replaced. The contact stated that the engine and battery were replaced. The contact stated that on a separate occasion, while driving 70 MPH, the vehicle experienced a loss of automotive power before the engine seized. There were no warning lights illuminated. The contact was able to coast to the side of the road. The vehicle was towed to a local dealer. The vehicle was not diagnosed. The contact towed the vehicle to another dealer. The vehicle was towed to a local dealer where the vehicle was diagnosed, and the contact was informed that the engine was faulty and needed to be replaced. The vehicle was not repaired for the most recent failure. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the failure. The failure mileage was approximately 27,300. VIN tool confirms parts not available.

ENGINE

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at an undisclosed speed, the vehicle experienced a loss of automotive power, with an abnormal knocking sound coming from under the hood. No warning light was illuminated. The vehicle was taken to a local independent mechanic, where it was diagnosed with engine lifter failure. The vehicle was not repaired. The local dealer was not contacted. The manufacturer was made aware of the failure. The failure mileage was approximately 68,000.

POWER TRAIN

8 speed transmission issues Hesitation, shifting hard, noise

POWER TRAIN

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving 60 MPH, the vehicle briefly lost motive power before slamming into gear. There were no warning lights illuminated. The contact stated that on a separate occasion, while driving at an undisclosed speed, an abnormal sound was coming from the transmission. The vehicle was taken to a local dealer; however, no cause for the failure was found. After test-driving the vehicle, the dealer diagnosed that the fuel injectors had failed, and there was a misfire in cylinder #6 had, and the check engine warning light was illuminated. The fuel injectors were replaced. The dealer test drove the vehicle and the failure persisted. The dealer diagnosed the vehicle and stated that the lifter rocker arm had seized. The vehicle was not yet repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 64,000.

ENGINE

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that upon starting the vehicle there was an abnormally loud screeching sound coming from the vehicle, and the engine seized. The contact stated that the transmission was shifting hard. There was an abnormal banging sound coming from the vehicle. There were no warning lights illuminated. The vehicle was towed to the local dealer where it was diagnosed and determined that the engine needed to be replaced. The vehicle was repaired. The Carfax and GM global connect portal warranty document noted an abnormal loud banging noise and front-end damage at 1 mile prior to the purchase, and an insurance claim was filed for the rear main seal. The manufacturer was contacted, and the contact filed a claim. The failure mileage was approximately 29,606.

ENGINE

While driving at 35 mph my check engine light, Service Parking Break light, ABS Maintenance light all came on and my truck lost power to a point I could not go over 10 MPH. It started chugging and running very rough. Fortunately I was close to home and got it in the driveway. I called the dealership to set and appointment, tried to drive it down my driveway and couldnt get it over 10 MPH. I called a tow company to take it to the local dealer I purchased from. After a couple days the dealership called and said there is a lifter problem but wasnt fully into the engine to see if there was more damage and would call me once more testing had been done. I have photos of the tow company tow bill ($169) and a photo of them lowering the bed to put the truck on it to haul to dealer if needed.

ENGINE

CEL with code P1098 - which is a coolant control valve issue. Engine is not properly distributing coolant potentially causing an overheating condition. Dealer informed me that it is dangerous to drive and it is recommended that it is left at the dealer until it is repaired. If driven and other issues occur do to this failure the warranty will not cover damages. The failed part - coolant control valve is on national backorder and there is no eta on when the part will be available, no vehicle has been provided and the replacement part appears to be no different than the original except for a different model number.

ENGINE

While driving on the highway the engine shimmered and shut down. I lost all steering and braking power. After 20 minutes I was able to restart and drive off the highway at a reduced speed. upon exiting the engine died again. The following day I took it to sunrise Chevy in Glendale Hights IL as this was just down the road from where it sat all night. Service rep called and said I need a new engine with only 81000 miles. It was major lifter failure he said. Job was done at a cost of 9417.89. With less than 1000 miles on the new GM engine I was coming home on [XXX] at night when I lost all power to steering and brakes, dashboard lit up. Made it to the shoulder and towed back to the dealer. Once again major engine failure. At least this one was under warranty. but still very dangerous on the highway. Needs to be a recall please. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

ENGINE

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving 75 MPH, the vehicle failed to properly respond. There were no warning lights illuminated. The contact stated the vehicle shut off and failed to restart. The contact pulled over to the side of the road and attempted to restart the vehicle; however, the vehicle was not making a sound. The contact checked the battery and believed that the engine was inoperable. The contact towed the vehicle to the residence. The vehicle was not taken to a dealer or to an independent mechanic to be diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 87,005.

ENGINE

I was driving down the road at no more the 15 mph up hill in 4x4 when the engine shut off. No warning lights or noise and would not turn over. Had it towed to the local dealership to find out the main thrust bearing seized. I have to wait two to three months for a new engine which is covered under warranty. No wheels in the meantime. Only has 25,640 miles on it.

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

while driving, the emergency brake engages and locks the car up coming to a complete stop mid driving (on highway!). this has happened 3 times now, took it into dealer, they did a computer update and released. It has since happened again, with my child in the car!

UNKNOWN OR OTHER

while driving, the emergency brake engages and locks the car up coming to a complete stop mid driving (on highway!). this has happened 3 times now, took it into dealer, they did a computer update and released. It has since happened again, with my child in the car!

ENGINE

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving 55 MPH, the "Low Oil Pressure - Turn Off Engine" was displayed and the vehicle experienced a loss of automotive power. The contact pulled over to the side of the road to turn off and restart the vehicle; however, the vehicle failed to restart. The contact stated that several unknown warning lights were illuminated. The vehicle was towed to a local dealer where the vehicle was diagnosed, and the contact was informed that the engine was faulty and needed to be replaced. The vehicle was repaired. The contact referenced NHTSA Action Number: PE25001 as a possible cause for the failure. The approximate failure mileage was 43,986.

ENGINE

Engine shut off on me while I was driving and wouldn’t crank back on. Had it towed to a dealership and they told me the engine is locked up and no idea why. It on has 61,xxx miles on it

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

I was driving 60mph and went to accelerate a little bit more and my lifters went out and stated clicking.

ENGINE

I was driving 60mph and went to accelerate a little bit more and my lifters went out and stated clicking.

ENGINE

Camshaft bearing failure. Catastrophic engine failure while accelerating at left turn. Required full engine replacement. Incident occured at 59,982 miles on odometer. Even though vehical was under manufacture warranty it took approx. 18 days for GM to assume responsability. I was required to produce all maintenance records and was left without a vehicle for this time. Company was not clear on what work and parts of this repair would be protected under further warranty. Company did not provide exact specifics on replacement engine year and place of origin.

ENGINE

6.2 engine failure second motor put in last week dealer took for test drive truck was towed back for second engine failure

POWER TRAIN

Transmission jerking violently while driving at low RPM 1000-1500 RPM. Occurs daily. Shudder and vibration as vehicle is slowed approaching stops. Effect and feeling is unsettling to driver and passengers. Can be recreated but is also intermittent at times. Dealer has avoided fixing as it is not 100% consistent. Asking me to drive until failure which is unsafe and could lead to accident or stranding.

UNKNOWN OR OTHER

I get A shift to park message on my dash behind steering wheel whenever I put the vehicle in park and turn it off. It want let the vehicle completely shutdown.

POWER TRAIN

The transmission either shifts hard or momentarily locks up when downshifting and then shifting back up into high at 50+ mph. Check engine light comes on, tow haul mode is not available, engine rpm's increase dramatically. Transmission will begin shifting normally after a engine stop, but check engine light stays on, and tow haul mode is not available. Cycle continues. The hard shift before the check engine light comes on and transmission upper gears are locked out is very unnerving, especially with a travel trailer behind you at 65 mph. I no longer fell safe driving the vehicle. I am requesting assistance from the dealership on this truck with less than 49000 miles. The "flash for the transmission" recall was done several thousand miles ago. It only masks the situation. This is not acceptable, nor safe.

EXTERIOR LIGHTING

Rain is coming in through the back window. Dealer is stating that the rain is coming from the sliding window but satellite is stating it’s the brake light on the top of the truck.

UNKNOWN OR OTHER

Rain is coming in through the back window. Dealer is stating that the rain is coming from the sliding window but satellite is stating it’s the brake light on the top of the truck.

VISIBILITY/WIPER

Rain is coming in through the back window. Dealer is stating that the rain is coming from the sliding window but satellite is stating it’s the brake light on the top of the truck.

ENGINE

I purchased this vehicle brand new is 2021 with the 6.2 liter engine. I have had all the regular maintenance performed as scheduled with 90% being done at a Chevrolet dealership. My truck has around 90,000 miles on it and now the engine is out. It started with showing low oil at 50% oil life left. When I took it to have it checked, it was 3 quarts low on oil. I did another oil change and was told I had to start an oil consumption test in order for them to review the issue. I had it checked every 1000 miles. The first and second check was fine. The third check was one quart low. They took it in and found that the spark plugs were oil fowled. Upon further investigation, they found that the cylinder walls were scored and had oil bypass in the cylinders. I have done everything right with this truck. Took care of it in all the ways I was supposed to. There is no reason what so ever for the engine to have gone out at 90,000 miles. There has to be more to this. I have looked it up and other people are having the same issue with the same engine. Why is nothing being done about this?

UNKNOWN OR OTHER

Transmission isssues hard shifting and no shifting at times. I informed the dealership about the recall on this issue and they are saying it doesn’t fall under the recall which isn’t true because my vehicles is showing all of the symptoms under the recall #N242454440.

POWER TRAIN

Transmission isssues hard shifting and no shifting at times. I informed the dealership about the recall on this issue and they are saying it doesn’t fall under the recall which isn’t true because my vehicles is showing all of the symptoms under the recall #N242454440.

ENGINE

Had the check engine and recieved code p0303 cylinder 3 misfires i replaced fuel injectors on that side spark plugs ,wires ,spark plug solenoid,and still had the check engine p030 and would not run right my mechanic had to take the head off and replace all the valves of the motor costing me more than $5,000 i am so embarrass cause i was so honored to buy this silverado,but at 60,000miles this should nit happen why am i throwing alot of money to this truck gm you guys are letting me down i always by gm but at this point i dont know can you make this right,and no i dont want a 10 percent discount in a new one that a slap on my face .

ENGINE AND ENGINE COOLING

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that the vehicle was making an abnormal knocking sound while driving at various speeds and while idling. There was no warning light illuminated. The vehicle was taken to the dealer, where the engine lifters were replaced; however, the failure persisted. The vehicle was taken back to the dealer, where the contact was informed that the engine abnormal knocking sound was not sufficiently loud to issue a recall. The vehicle was not repaired. The contact related the failure to NHTSA Action Number: PE25001 (Engine, Engine and Engine Cooling). The manufacturer was not notified of the failure. The failure mileage was approximately 11,000.

ENGINE

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that the vehicle was making an abnormal knocking sound while driving at various speeds and while idling. There was no warning light illuminated. The vehicle was taken to the dealer, where the engine lifters were replaced; however, the failure persisted. The vehicle was taken back to the dealer, where the contact was informed that the engine abnormal knocking sound was not sufficiently loud to issue a recall. The vehicle was not repaired. The contact related the failure to NHTSA Action Number: PE25001 (Engine, Engine and Engine Cooling). The manufacturer was not notified of the failure. The failure mileage was approximately 11,000.

UNKNOWN OR OTHER

When I am driving my vehicle and I pull in to park, I put the gear shift into park and shut the vehichle off and a light comes on in the dash and says shift to park. And the vehichle will not shut down for several minutes after this light comes on. It also feels like there is a hesitation in the transmission at times after I start the vehicle and start driving.

LATCHES/LOCKS/LINKAGES

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while stopped, there was an abnormal sound coming from the vehicle. The contact stated that the rear tailgate had opened independently. There were no warning lights illuminated. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 56,000.

POWER TRAIN

Transmission issues, rough shifting, hesitation and shuddering.

PARKING BRAKE

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving approximately 50 MPH, the engine started rumbling with the check engine, stability-trac, and the parking brake warning lights illuminated. The vehicle was taken to an independent mechanic who diagnosed a misfire in cylinder #1. The mechanic referred the contact to the dealer for assistance. The vehicle was taken to the dealer, who diagnosed that the lift valve had collapsed, and the right side of the block lifters needed to be replaced. The vehicle was not repaired. The manufacturer was informed of the failure and referred the contact to the dealer for assistance. The failure mileage was 80,000.

ELECTRONIC STABILITY CONTROL (ESC)

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving approximately 50 MPH, the engine started rumbling with the check engine, stability-trac, and the parking brake warning lights illuminated. The vehicle was taken to an independent mechanic who diagnosed a misfire in cylinder #1. The mechanic referred the contact to the dealer for assistance. The vehicle was taken to the dealer, who diagnosed that the lift valve had collapsed, and the right side of the block lifters needed to be replaced. The vehicle was not repaired. The manufacturer was informed of the failure and referred the contact to the dealer for assistance. The failure mileage was 80,000.

ENGINE AND ENGINE COOLING

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving approximately 50 MPH, the engine started rumbling with the check engine, stability-trac, and the parking brake warning lights illuminated. The vehicle was taken to an independent mechanic who diagnosed a misfire in cylinder #1. The mechanic referred the contact to the dealer for assistance. The vehicle was taken to the dealer, who diagnosed that the lift valve had collapsed, and the right side of the block lifters needed to be replaced. The vehicle was not repaired. The manufacturer was informed of the failure and referred the contact to the dealer for assistance. The failure mileage was 80,000.

ENGINE

What component or system failed or malfunctioned, and is it available for inspection upon request? The component that failed is the lifter in my 2021 GM truck, which caused severe engine damage. The vehicle is currently at the dealership and is available for inspection upon request. How was your safety or the safety of others put at risk? My safety and the safety of my child were significantly put at risk when the engine failure occurred on the freeway while traveling at 65 miles per hour. Multiple warning lights illuminated on the dashboard, and the truck became hard to control. I was fortunate to maneuver the vehicle safely out of traffic without harm, but the sudden loss of engine power could have led to a serious accident. Has the problem been reproduced or confirmed by a dealer or independent service center? Yes, the problem has been confirmed by the dealership, which conducted diagnostics and determined that the lifter malfunction caused severe engine damage, necessitating a full engine replacement. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives, or others? The vehicle has been inspected by the dealership, which is an authorized service center for GM. However, it has not been inspected by the manufacturer directly, police, or insurance representatives. Were there any warning lamps, messages, or other symptoms of the problem prior to the failure, and when did they first appear? There were no warning lights, messages, or any other symptoms prior to the failure. The vehicle was driving normally when, all of a sudden, it began to shake and slow down,

ENGINE AND ENGINE COOLING

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated upon shifting into reverse(R), the vehicle shut off. The contact stated upon shifting to park(P) to restart the vehicle, the vehicle was able to restart after pressing the Push to Start button several times, and the vehicle made abnormally loud cranking, banging, and rattling sounds. The contact stated that he was an independent mechanic and had determined that the engine was blown, despite the outstanding maintenance record on the vehicle. The vehicle was towed to the dealer, where it was diagnosed that the engine had failed due to lifters failure. The dealer determined that the engine needed to be rebuilt or replaced. The dealer informed the contact that the engine might be replaced because the parts needed for the rebuilding of the engine were on backorder. The dealer informed the contact that the engine oil would be tested. The dealer also informed the contact that a claim was filed with the manufacturer for the repair to be covered under warranty, and the dealer was awaiting a response from the manufacturer. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 27,820.

LATCHES/LOCKS/LINKAGES

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that the rear tailgate opened unexpectedly and without warning. The dealer and the manufacturer were made aware of the failure, and informed the contact that the vehicle was not included in NHTSA Campaign Number: 24V060000 (Latches/Locks/Linkages). The vehicle was not repaired. The failure mileage was approximately 48,000.

POWER TRAIN

Transmission sometimes does not change out correctly, when I show down it shifts really hard, and and now the rear wheels are locking up which increase the likelihood of an accident

WHEELS

Transmission sometimes does not change out correctly, when I show down it shifts really hard, and and now the rear wheels are locking up which increase the likelihood of an accident

UNKNOWN OR OTHER

Diesel engine continues to overheat, even after the oil temperature sensor failure dealership repair. Truck is very well maintained. However, common and trending issue amongst 1500 Silverado diesel owners is overheating which causes engine to loose power while driving and even get so hot it can catch fire. Warning lights appear only when problem is at engine failure point. Also, we lost power or reduced power on freeway which almost caused an accident and engine was smoking. We had it towed to Epic Chevrolet in Sacramento, CA. Within one week of dealership repair covered under powertrain warranty, dealership said overheating engine is due to a “new” code for coolant pump. In short, fire and driving safety hazard that can cost lives if not addressed by NHTSA.

ENGINE

Diesel engine continues to overheat, even after the oil temperature sensor failure dealership repair. Truck is very well maintained. However, common and trending issue amongst 1500 Silverado diesel owners is overheating which causes engine to loose power while driving and even get so hot it can catch fire. Warning lights appear only when problem is at engine failure point. Also, we lost power or reduced power on freeway which almost caused an accident and engine was smoking. We had it towed to Epic Chevrolet in Sacramento, CA. Within one week of dealership repair covered under powertrain warranty, dealership said overheating engine is due to a “new” code for coolant pump. In short, fire and driving safety hazard that can cost lives if not addressed by NHTSA.

UNKNOWN OR OTHER

Paint chipping and cracking not even five years old yet

ENGINE

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while her husband was driving 40 MPH, the vehicle hesitated and jerked. The contact's husband depressed the accelerator pedal, but the vehicle lost motive power. The message, "Put on Neutral and Stop" was displayed. The contact's husband pulled over to the side of the road and the vehicle stalled. The vehicle failed to restart. The vehicle was towed to the dealer where it was diagnosed that the engine had failed and needed to be replaced. The contact's husband towed to vehicle to another dealer where it was confirmed that the engine had failed and needed to be replaced. The vehicle was repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 90,000.

ENGINE

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving on the interstate at approximately 70 MPH, the vehicle lost motive power. The vehicle failed to accelerate over 35 MPH. The vehicle went into Low-Power Mode. The check engine warning light was illuminated. The driver was able to take the exit ramp and continued driving. The vehicle was taken to the local dealer, where it was diagnosed that the camshaft and cylinder head needed to be replaced. The vehicle was not repaired. The manufacturer was contacted and opened a case. The failure mileage was approximately 91,000.

UNKNOWN OR OTHER

I had my windshield replaced and the installer said when he removed the old glass, the bottom of the glass didn't have the rubber strip accross the bottom. Our rear sliding window has had a small leak, so we asked him to check it out too. He noticed that the window also does not have the rubber weather seal.

ENGINE

I was driving my 2021 Silverado when i was stopped at a 4 way waiting my turn. When it was my turn i made a left hand turn and and travelled a short distance going 20-25 mph when my engine made an odd sound and shut off in traffic!. I attempted to restart it and it did noting. Truck was towed to Hendricks Chevrolet where the truck was bought and received regular maintenance. When the truck stopped in traffic there were no warning lights on the dash before during or after. Once the truck was at the dealership for inspection i was advised That the motor was sized and that number 1 and 2 rod bearings failed and were ground in the crank journals. I asked how could that happen when the the truck has had regular oil changes by them and is there an issue with these engines? I was told that they see a few 6.2 engines with these types of issues.

POWER TRAIN

The transmission valves failed and torque converter clutch slipped causing the truck to have harsh shifting issues, acceleration issues, and wheel-lock up. I've had to replace my full transmission and receive a new torque converter clutch, reprogrammed.

POWER TRAIN

The transmission on my truck failed. My truck now requires a new transmission. A repair costing over $7000. The transmission gave out while pulling into a street with my wife and child in the car. The truck would struggle to go into gear and lurch violently. The dealer was able to replicate these problems.

STRUCTURE:BODY

When it rains. Tailgate opens on it own. Either have to lock truck or quickly put into drive to prevent tailgate from opening on its own. Only in wet weather. Tailgate opened on its own in rainy weather when parked at hardware store. I began to drive away not knowing tailgate opened and lost tool box and material out the back while making a turn. Speaking with GM I was explained it’s a known issue on 2500 models but not for 1500 models.

POWER TRAIN

The transmission is the problem. The truck shudders. I took it to a mechanic, David Gessel's Auto Service 863-401-2860. The mechanic serviced the transmission and informed me that the transmission will need to be replaced eventually and that the torque converter is coming apart. It seems like the same issues 2019 transmissions in Chevys were having. My transmission is an automatic 8speed. The service performed fixed the problem of shuddering but now the truck is doing it again.

ENGINE

Engine failed, crank bearings let go. Truck lost power while traveling down the road.

UNKNOWN OR OTHER

Baton Rouge Louisiana

ENGINE

Baton Rouge Louisiana

ENGINE

Baton Rouge Louisiana

UNKNOWN OR OTHER

Baton Rouge Louisiana

SUSPENSION

Upper control arm ball joint separated from the control arm causing steering loss.

POWER TRAIN

The automatic transmission appears to be going out. Hard shifting occurs when speeding up or slowing down along with loud thuds and jerks. No warning lamps have come on, I will be taking it to a shop to have the transmission fixed.

POWER TRAIN

Vehicle feels like it's hitting a bump down the road 65 miles an hour. There is no bump it's the transmission. My truck has 80240

ENGINE

Vehicle feels like it's hitting a bump down the road 65 miles an hour. There is no bump it's the transmission. My truck has 80240

UNKNOWN OR OTHER

The tumbler in keyed switch is locked up solid . Cannot turn key to start or turn on.

ENGINE

Engine Seized up on me while driving on the freeway. Four of the crankshaft bearings seized up and one of those four completely melted. good thing the freeway I was on was not too crowded, my dash just all of a sudden lit up saying shift to neutral to restart engine. I was able to get to the shoulder. I tried re starting the engine and nothing happened. I had it towed to Simpson Chevrolet in Irvine CA. they reported back to me and said Engine has seized and I will need a new engine, cost of $16,893. I cannot afford a new engine right now and have been left without a vehicle. GM has taken no responsibility for this failure even though all maintenance has been performed on time every time.

POWER TRAIN

Engine Seized up on me while driving on the freeway. Four of the crankshaft bearings seized up and one of those four completely melted. good thing the freeway I was on was not too crowded, my dash just all of a sudden lit up saying shift to neutral to restart engine. I was able to get to the shoulder. I tried re starting the engine and nothing happened. I had it towed to Simpson Chevrolet in Irvine CA. they reported back to me and said Engine has seized and I will need a new engine, cost of $16,893. I cannot afford a new engine right now and have been left without a vehicle. GM has taken no responsibility for this failure even though all maintenance has been performed on time every time.

ENGINE

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. The contact stated that the vehicle came to a complete stop. The contact shifted into reverse and parked the vehicle. No warning light was illuminated. In addition, the contact stated that the failure had occurred while facing oncoming traffic. The vehicle was towed to the dealer where it was diagnosed with a failed check valve ball. The contact was informed that the check valve ball body and plates needed to be replaced. The vehicle was repaired. The manufacturer was made aware of the failure and a case was filed. The contact was advised to contact the NHTSA Hotline to report the failure. The failure mileage was approximately 52,648.

ELECTRICAL SYSTEM

The rear power tailgate was randomly opening and closing on its own, on several different occasions. The safety risk was, if the tailgate would have opened when traveling down the roadways, items in the back could have fell out and possibly striking another vehicle and causing an accident. The truck has been taken to Gandrud Chevrolet in Green Bay WI, confirmed there was a faulty tailgate switch and replaced. There was no warning before the switch failed, it just happened on its own.

ENGINE

Had vehicle in for service for oil change and a loud clicking noise as well as misfire was the vehicle was fine to drive proceeded on my trip on my way back to my hometown the motor through a pushrod while on the highway

ELECTRICAL SYSTEM

The tailgate is opening automatically without anyone near the vehicle or keys. It has only started recently and I see similar vehicle models are being recalled for the same issue. My concern is that this could happen while driving down the road, posing a risk to other drivers if there are items in the bed of the vehicle. Prior to the tailgate opening unexpectedly, the button to push on the tailgate that opens it quit working. It will only open with the keys or button in the cab, or now at random times.

SUSPENSION

The car while I’m driving, when I start driving it has a kick could be transmission

UNKNOWN OR OTHER

The car while I’m driving, when I start driving it has a kick could be transmission

VEHICLE SPEED CONTROL

The car while I’m driving, when I start driving it has a kick could be transmission

POWER TRAIN

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that during cold starts, the transmission was slipping, jerking, and banging. The failure eventually worsened and began to occur after the vehicle was driven and was warmed up. Additionally, while decelerating, the vehicle erroneously lurched forward. The vehicle was taken to the local dealer who diagnosed that the transmission valve body was faulty and needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure. The failure mileage was 6,000.

STEERING

51,000 miles and Power steering warning light came on, attempted to turn and the wheel and was a struggle to make a turn. I almost ran off roadway and struck a tree. I struggled to get the truck home, where it sat for a minute and reset itself and worked properly for now. Upon reviewing the electric steering in this year, make and model was very common within 15k miles to 65k miles. Upon internet search, revealed this problem had a recall. Wanted to make sure before a manage to transport the truck for service at dealership and pay for high labor charges.

ENGINE

Truck died on busy road. Towed to certified Chevy dealer. They heard knocking noise did oil change drove it truck died again. Stated engine seized. Warranty dept denying claim saying truck driven 30 seconds to 1 minute after oil pressure light came on. But no lights came on for us and verified from diagnostic done at the Chevy dealer.

ENGINE AND ENGINE COOLING:ENGINE:ENGINE CONTROL MODULE (ECU/ECM)

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at an undisclosed speed, the vehicle inadvertently lost motive power. The contact was able to pull over to the shoulder of the roadway, where the vehicle failed to restart. The check engine warning light was illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the fuel pump. The vehicle was repaired, but the failure reoccurred. The vehicle was taken to an independent mechanic, who diagnosed a failure with the ECM wiring harness. The vehicle was not repaired. The manufacturer was notified of the failure but provided no assistance. The failure mileage was 13,000.

POWER TRAIN

Transmission Overheating and Jerking

UNKNOWN OR OTHER

Since the purchase of this truck I have been having the same issues consistent with the current recall. It has gotten worse and has almost caused an accident during acceleration due to skipping or locking up of the engine/wheels. Worse when traction control is on. This Happens almost every time the gears shift during acceleration.

ENGINE

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving at approximately 35 MPH, the engine started to misfire. There was an unknown service warning light illuminated. The vehicle was taken to the local dealer, where it was diagnosed that left side valve lifters needed to be replaced. The codes displayed were 0329 (Engine/Fuel Exhaust) and 6581 (Modular Component) registering incorrectly. The vehicle was repaired. The manufacturer was not contacted. The failure mileage was approximately 15,253.

POWER TRAIN

While coming to a stop at the end of the exit ramp my vehicle bucked when trying to go from a stop into 1st gear. Eventually the truck continued in a forward motion. Then came to a stop light and once again from a stopped position by truck bucked and eventually went into gear and continued forward motion. Parked the car where it sat for 1.5 hours then went to drive the vehicle and it bucked again into 1st gear. Drove to a parking lot were we parked to get lunch. Came out started the vehicle backed out of the parking spot and drove forward to the exit of the parking lot. When trying to exit the vehicle failed to move forward. The car acted as if it was in neutral and only revving to high RPM's. Removing the fuse for the Transmission Control Ignition allowed the vehicle to move forward but only in gears 1,2,3. I brought the vehicle to GMC dealership and they recommended a fluid service to determine if metal chips are in the fluid. That service was performed and issue remained. The Dealer has recommended a complete transmission replacement. My vehicle never displayed a warning lamp or shown symptoms prior to this failure. My vehicle has a 8 speed transmission which is known to be a failing part with Chevrolet and GMC. A new transmission is costing me $7900 plus tax on a 2021 with low wear and highway use.

ENGINE

The first time it happened my Truck started shaking a lot on the highway and it left me stranded on the side of the road. It had around 20,000 miles on it. When it got repaired I was told it had to do with the lifters on the left side of the engine. Took them 2 weeks to fix the issue. The second time it happened was on the ramp getting on to the highway, this time at 58,000 miles and now the right side lifters. Except this time they couldn’t fix it and they are going to replace the whole engine and give me a new one. Only thing is that it's been in Chevrolet shop for over 2 months and they have an ETA of a new Engine arriving in about a month if even that. So currently don't have my truck.

ENGINE

Engine misfire, likely engine will need to be replaced

ELECTRICAL SYSTEM

No check engine light, and my transmission didn't engage gear. I left vehicle off for the night, started it and it worked perfectly fine. Still, no check engine light was on.

POWER TRAIN

No check engine light, and my transmission didn't engage gear. I left vehicle off for the night, started it and it worked perfectly fine. Still, no check engine light was on.

ENGINE

Around [XXX] on [XXX] the vehicle shut down with no codes showing or any warning. The weather was approximately 13* f. After many failed attempts to restart, and the electrical systems would not power down as if the vehicle thought it was still running. The only way to get the system to shut down was to disconnect the battery. i had to physically push the vehicle to a safe location. The next morning I attempted to diagnose the issue with no success. I had the vehicle hauled to the dealership from which it was purchased in Idaho to have it inspected. Tuesday morning I received word from the dealership that the engine suffered major failure. This will be the 3rd engine in the vehicle. I am uneasy about the dependability of the vehicle as I have recently discovered that this particular engine is having massive failures all over the country. So much so that the NHTSA has opened an investigation for the purposes of safety. I purchased the vehicle for the main purpose of pulling a snowmobile trailer with snowmobile to the mountains and also to tow my boat and trailer. Both of these activities require a vehicle in which I can depend on. While I am waiting for a back order engine the dealership and manufacturer refuse to lend a like vehicle, leaving destitute. I am hoping that this agency can offer some assistance, and I believe it's important that you are made aware of the hazard that this particular engine possesses. As I previously mentioned this the 3rd engine and As far as I can see this will occur again putting myself and others potentially in harms way because of a known issue. This does not make me feel confident of the safety of the vehicle. Be aware where i live there grades in every direction and extreme weather conditions from season to season. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

STEERING

I was driving and my electric steering locked up. I had it towed to a garage and they reset the computer. I'm afraid it's going to happen again. I'm going to the dealership on Tuesday and I don't feel that I should pay for this since it's a safety issue. I only have 50,000 miles on it.can someone please get back to me. Thanks

POWER TRAIN

Drove my truck home for lunch. Truck drove normal all morning with no warning lights or audible warnings. Went to leave and head back to work. Put my truck in reverse and it would not move. Still no warning lights or audible warnings. After looking online it said that this was common in the Chevrolet speed transmission. It also says the valve body was bad. They also stated that it could lock up the transmission and cause an accident. Luckily I was not driving down the road to find out. When talking with a Chevrolet dealership they told me that the parts to fix the transmission is on backorder. They also stated that the parts may not be available for months. Because the Chevrolet dealership had other Chevrolet vehicles in with the 10 speed transmission with the same issues and could not get parts because of the valve body being on backorder. They also said that the whole transmission being on backorder. This sounds like it's a common problem with Chevrolet 10 speed transmissions.

POWER TRAIN

2021 Chevrolet Silverado Trail Boss with transmission valve body problem. Truck nearly stalled while driving and towing my boat then a huge clunk in the transmission. The truck then rapidly accelerated, down shifted, brief wheel lock up and I was nearly sent in to the ditch with my trailer now swaying behind me. The entire situation felt extremely unsafe and dangerous to both me and oncoming traffic. The check engine light was then on and the truck went in to limp mode. The truck would also no longer go into reverse. I first brought the truck in in October. They finally diagnosied the problem on November 4th, 2024. It is now February 14, 2025 and GM can still not provide me and ETA for the part or for repair. I've opened a service ticket with GM and asked for a buyback as I do not feel safe driving this vehicle any longer. I still do not have resolution with GM or my local dealership.

ELECTRICAL SYSTEM

Tailgate, inadvertently opens. Causing, causing items in my truck bed to be exposed, although I haven’t lost anything while traveling. I have witnessed this occurrence while truck is locked sitting in my driveway, last incident was last night, 13 Feb 25. Also, noticed it when pulling out of a repair shop after getting brake pads put on vehicle. Wife had witnessed it a few months ago while driving back from town. I noticed a recall had been made about Chevrolet trucks and inadvertently opening tailgates. However my truck was not listed as a recall, when I checked VIN. Called Chevrolet garage to see if they could find my VIN on the recall list. Most of the recalls were on the 2500 and 3500 series but it also listed trucks with switch in cab for tailgate to open. I do have an appointment for the problem at Chevrolet garage in the 18th. To fix problem and prevent causing a hazard on the roads.

AIR BAGS

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving approximately 20 MPH, the vehicle crashed into a parked vehicle. During the crash, the front passenger side of the vehicle was severely damaged but the air bag did not deploy. The driver sustained an injured nose, mild concussion, bottom tooth damage, and back and neck pains. No medical treatment was needed. A police report was taken at the scene and the vehicle was later towed away. The cause of the failure was not determined. The manufacturer and local dealer were contacted but no assistance was offered. The manufacturer's air bag department declined assistance due to the air bag failure not being reported promptly. The failure mileage was 23,000.

STRUCTURE

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while washing the vehicle, he noticed that water was entering the vehicle through a crack in the rear window seal. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was made aware of the failure and advised the contact to report the failure to the NHTSA Hotline. The failure mileage was approximately 57,000.

POWER TRAIN

My 2021 Chevy jerks and jumps into gear when putting it into drive from park. This has resulted in the truck jetting off uncontrollably. This has happend several times going back to 2021 but Chevy will not do anything about it.

POWER TRAIN

While driving vehicle pulling out into an intersection lost power do to Transmission failure (valve control body). Truck was towed to a Chevy Dealer and was confirmed transmission failure. There was no warning or symptoms prior to this incident.

STEERING

I turned my truck on after grocery shopping and a notice to "Service Power Steering" popped up on my dashboard. I took it to a mechanic shop where they ran diagnostics. They discovered a TSB # 21-NA-149 and error code U0131. They believe there is an intermittent fault within the wiring causing the power steering to go out. My biggest fear is that this happens while I am negotiating a curve and lose power steering causing a crash or someone to get injured. There was also a "Service ESB" notice on the dashboard after the power steering notification.

ELECTRICAL SYSTEM

I turned my truck on after grocery shopping and a notice to "Service Power Steering" popped up on my dashboard. I took it to a mechanic shop where they ran diagnostics. They discovered a TSB # 21-NA-149 and error code U0131. They believe there is an intermittent fault within the wiring causing the power steering to go out. My biggest fear is that this happens while I am negotiating a curve and lose power steering causing a crash or someone to get injured. There was also a "Service ESB" notice on the dashboard after the power steering notification.

POWER TRAIN

I have a 2021 Chevy Silverado 1500 Custom crew cab truck with an 8-speed transmission. I have had transmission issues for a few months. I am experiencing hard shifting from 2nd gear down to 1st gear, slipping while at cruising speed, shuddering between 20mph-50mph, transmission getting too hot. I was told by an automotive shop that they experienced the hard shifting and that they also heard a whining sound while driving. They told me that they a found a Service Bulletin that came out in December of 2024, that there could be a pinched line on top of the transmission that could be causing the overheating. I have read that the transmission control module needs to be reprogrammed, a fluid flush and refill, the Thermal Bypass Valve could be at fault. Basically everything that has been released about the transmissions on 2020- 2024 GM vehicles as being safety problems, I am experiencing. I have checked my VIN on the NHTSA website and also with a dealership, and both show that there is not a recall for my VIN. I do not tow anything, just normal ever day driving. I now have 90,000 miles on the truck and the issue first happened at around 87,000 miles. The issues with this truck are clearly manufacturer defaults and something should be done on their dime, not mine. The first time that I experienced the problems was at the end of November in traffic, which a hard shift into 1st gear, felt like I was hit from behind, but was not. Dash lights came on (traction control light, parking brake light, check engine light) and the truck went into "Limp Mode". I was able to exit the highway and get into a parking lot. I looked in the owners manual and found a quick solution and was able to regain power and all lights went off except for the check engine light. Got the code checked and it came up Transmission Control Module was potentially the issue. Code was cleared and didn't have the problem for a long time.

POWER TRAIN

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while shifting into park(P), the vehicle failed to recognize that the vehicle was in park(P). The contact stated that the "Shift to Park" message was displayed on the instrument panel. The contact was forced to move the gear shifter back and forth between gears before the correct gear was recognized. The vehicle was initially taken to a dealer; however, the dealer failed to duplicate the failure. The failure persisted and the vehicle was taken back to the dealer, and it was discovered that the transmission control module had short circuited and needed to be replaced. The vehicle was not yet repaired. The manufacturer was not notified of the failure. The failure mileage was 41,000.

POWER TRAIN

2021 Silverado LT Trail Boss 6.2 (production date: 01/2021) was taken to the GM/Chevy dealer (Ed Morse Chevrolet) on 01/29/2024. It was confirmed by the GM mechanic that the engine had failed (75k miles) due to a shattered camshaft and metal in the engine and a complete engine replacement is needed. Had prior complaint at around 6k miles for engine noise along with hard shifts and a check engine light that had appeared then went away on its own (documented). I was told by a GM certified dealership, it was normal in the new trucks and no action was taken. Unsatisfied, I made another appointment for a second opinion and only regular maintenance service was suggested and performed several days after, at a GM certified dealership. All oil changes have been performed in a timely manner. No forewarning prior to engine failure to include check engine light or any system messages, although trucks performance from the initial complaint did not subside. To my knowledge, this vehicles engine is weighing heavy on consumers safety with engine failure and is a well documented issue, leaving many stranded. Thank you!

ENGINE

2021 Silverado LT Trail Boss 6.2 (production date: 01/2021) was taken to the GM/Chevy dealer (Ed Morse Chevrolet) on 01/29/2024. It was confirmed by the GM mechanic that the engine had failed (75k miles) due to a shattered camshaft and metal in the engine and a complete engine replacement is needed. Had prior complaint at around 6k miles for engine noise along with hard shifts and a check engine light that had appeared then went away on its own (documented). I was told by a GM certified dealership, it was normal in the new trucks and no action was taken. Unsatisfied, I made another appointment for a second opinion and only regular maintenance service was suggested and performed several days after, at a GM certified dealership. All oil changes have been performed in a timely manner. No forewarning prior to engine failure to include check engine light or any system messages, although trucks performance from the initial complaint did not subside. To my knowledge, this vehicles engine is weighing heavy on consumers safety with engine failure and is a well documented issue, leaving many stranded. Thank you!

POWER TRAIN

The truck jerks when first driving and will jerk and lundge at various times and speeds. There is a almost grinding nosie. It often says "Reduced Engine Power" and the engine light comes one, the "Service ESC" notice comes on with the vehicle light, when this happens the truck will barely accelerate even if flooring the gas, continues to make a grinding noise. This happens frequently, but then lights go away, then come back on. Dealership pulled multiple codes (image attached). This is a huge safety risk due to failure of acceleration, and the jerking that causes the truck to jerk while in motion and slow.

ENGINE

The truck jerks when first driving and will jerk and lundge at various times and speeds. There is a almost grinding nosie. It often says "Reduced Engine Power" and the engine light comes one, the "Service ESC" notice comes on with the vehicle light, when this happens the truck will barely accelerate even if flooring the gas, continues to make a grinding noise. This happens frequently, but then lights go away, then come back on. Dealership pulled multiple codes (image attached). This is a huge safety risk due to failure of acceleration, and the jerking that causes the truck to jerk while in motion and slow.

ELECTRICAL SYSTEM

The truck jerks when first driving and will jerk and lundge at various times and speeds. There is a almost grinding nosie. It often says "Reduced Engine Power" and the engine light comes one, the "Service ESC" notice comes on with the vehicle light, when this happens the truck will barely accelerate even if flooring the gas, continues to make a grinding noise. This happens frequently, but then lights go away, then come back on. Dealership pulled multiple codes (image attached). This is a huge safety risk due to failure of acceleration, and the jerking that causes the truck to jerk while in motion and slow.

FUEL SYSTEM, DIESEL

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that the oil was lowering several quarts at a fast rate, and the oil was burning at a fast rate. After lowering down 3 quarts of oil by 3 weeks. At the same time, driving at approximately 25 - 30 MPH when they noticed black smoke coming from underneath the front passenger side of the hood between the window and windshield. The contact pulled to the side of the road where the fire was extinguished with a fire extinguisher. The fire department was not called. A police report was not filed. There were no injuries and no medical attention was needed. The vehicle was towed to their home. The dealer was contacted however they confirmed they were unable to inspect the vehicle for another 5 weeks. The contact had ordered and replaced the intake and the fuel return lines. The manufacturer was made aware of the failure opened a case for the failure and offered a buyback option however the contact decided not to take the offer. The failure mileage was 32,000.

POWER TRAIN

With absolutely no warning, the 6.2 liter V-8 engine with 28,500 miles on it seized up solid and would not run. I was stranded in heavy Christmas traffic and completely blocked one lane. It was an unsafe situation. I had to summon a wrecker to come and tow the vehicle, and I called 911 for police presence to alert and direct traffic. The vehicle was at the Chevy dealer for a month while they installed a new engine. The dealer never fully confirmed what the cause was - I don't believe they really know - and I only have 10 months of warranty left. I am concerned about another failure and thought I should at least get the warranty on the new engine re-set to 60,00 or more miles.

ENGINE

With absolutely no warning, the 6.2 liter V-8 engine with 28,500 miles on it seized up solid and would not run. I was stranded in heavy Christmas traffic and completely blocked one lane. It was an unsafe situation. I had to summon a wrecker to come and tow the vehicle, and I called 911 for police presence to alert and direct traffic. The vehicle was at the Chevy dealer for a month while they installed a new engine. The dealer never fully confirmed what the cause was - I don't believe they really know - and I only have 10 months of warranty left. I am concerned about another failure and thought I should at least get the warranty on the new engine re-set to 60,00 or more miles.

STRUCTURE:BODY

There is a water leak from the rear roof leaking causing water to come inside by the rear window down the rear pillar by the airbag. May cause problems with the rear side airbag and mold. Dealer charged me a $273 diagnostics charge and will not repair under warranty or extended warranty even though there is a TSB on this affecting numerous other trucks

UNKNOWN OR OTHER

There is a water leak from the rear roof leaking causing water to come inside by the rear window down the rear pillar by the airbag. May cause problems with the rear side airbag and mold. Dealer charged me a $273 diagnostics charge and will not repair under warranty or extended warranty even though there is a TSB on this affecting numerous other trucks

POWER TRAIN

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving from a complete stop, the transmission was slipping between the third and fourth gears. The contact stated that the failure recurred while driving between the sixth and seventh gears. There was no warning light illuminated. The vehicle was taken to the dealer, where it was diagnosed that the transmission had failed due to the TCM and torque converter failure; however, the parts were not available to repair the vehicle. The vehicle was not repaired. The manufacturer was notified of the failure and a case was filed. The failure mileage was approximately 95,000.

ENGINE

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving approximately 30 MPH following a school bus, there was an abnormal screeching sound coming from the vehicle. The contact stated that a message to pull over safely was displayed. The contact stated that the engine had seized. The vehicle was towed to the local dealer, where it was diagnosed that the crankshaft bearings and connecting rod bearings had failed. After further diagnostic tests, the contact was informed that the vehicle was not repairable. The vehicle was repaired with a remanufactured engine. The manufacturer was made aware of the failure. The failure mileage was approximately 16,000.

ENGINE

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving at an undisclosed speed or while stopping the vehicle, the contact heard an abnormal sound coming from the top of the engine where the lifters were located. The contact stated that the spring in the engine had collapsed, causing the check engine message to be displayed. The contact stated that the dealer was contacted. The vehicle was taken to the dealer to be diagnosed. The contact was informed that the lifters on the top of the engine were causing the DEF sensor to engage. The vehicle was not repaired. The manufacturer was not notified of the failure. The approximate failure mileage was 90,000.

UNKNOWN OR OTHER

I brought in vehicle for check engine light is on for p0300 / p0308 had misfire tech removed engine valve cover and determine no movement in valve train components tech determine valve train failure lifters possible camshaft we would need to remove the cylinder head and replace valve train lifters.

FUEL/PROPULSION SYSTEM

I brought in vehicle for check engine light is on for p0300 / p0308 had misfire tech removed engine valve cover and determine no movement in valve train components tech determine valve train failure lifters possible camshaft we would need to remove the cylinder head and replace valve train lifters.

ENGINE

I brought in vehicle for check engine light is on for p0300 / p0308 had misfire tech removed engine valve cover and determine no movement in valve train components tech determine valve train failure lifters possible camshaft we would need to remove the cylinder head and replace valve train lifters.

ENGINE

At 4K miles, the lifters of the engine went bad. It was determined a rod was bent and had to be replaced. At 26K miles, another cylinder went bad and had to be replaced. At 40Kmiles, serpentine belt had to be replaced. At 41K miles, another cylinder went bad and had to be replaced. Now, at 55K miles, I am getting the same issues with loss of power, engines stuttering and misfiring and will be taking the truck to the dealer on 1/28/25.

POWER TRAIN

At 4K miles, the lifters of the engine went bad. It was determined a rod was bent and had to be replaced. At 26K miles, another cylinder went bad and had to be replaced. At 40Kmiles, serpentine belt had to be replaced. At 41K miles, another cylinder went bad and had to be replaced. Now, at 55K miles, I am getting the same issues with loss of power, engines stuttering and misfiring and will be taking the truck to the dealer on 1/28/25.

ENGINE

Engine failure

ENGINE

My 2021 Silverado with only 80,655 miles had to have the engine replaced. On 11/20/24, my vehicle indicated a P0303 code for miss-fire in cylinder 3. I took my vehicle to for repair to a local Chevy Dealership and was informed of the following: 1) Needed programming changes to the fuel injection based on service bulletin N242450631. This repair was completed by the dealer. 2) Needed a “tear down” for further diagnostic. It was determined that the specific code could not be repaired and the entire engine needed to be replaced which was done at my cost. The details on service bulletin N242450631 are limited and do not describe issues that could be caused by the fuel injector problem. Relative to service bulletin N242450631 fuel injector issue, based on my experience with my vehicle, I believe this fuel injector programming bulletin issue caused the engine malfunction and subsequent need to replacement. Before the bulletin repair was completed, I know that my vehicle engine surged often. Looking back now, this constant surging had to be hard on the engine and likely caused the failure. Regardless, if it wasn’t the service bulletin that caused the issue, a vehicle engine should last more than 80,000 miles. I believe GM needs to take responsibility for the engine failure which I believe was caused by faulty workmanship, design, computer engine programming, or some combination of these issues.

ENGINE

Driving down the road and the vehicle shut off and said to restart. Wouldn't start back up. Check and found a 400 amp fuse was blown. Tested starter and was fine. Restarted the vehicle and it made a loud rattling noise and shut back off. Sent it to the dealer and they found that number 1 and 2 rods overheated and locked up the motor.

ENGINE

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated that while driving 50-55 MPH, the vehicle went into LIMP Mode. The vehicle decelerated to 35-40 MPH. The contact stated that the vehicle was consuming an excessive amount of oil. The contact stated that the vehicle was consuming a quart of oil per month. There were no warning lights illuminated. The vehicle was taken to the local dealer, where it was diagnosed with a failed lifter. The vehicle was repaired. The manufacturer was contacted and opened a case. The failure mileage was approximately 92,000.

FUEL/PROPULSION SYSTEM

At start up check engine light, service esc, service parking brake. Code reader shows code P0304 misfire cylinder number 4.

ENGINE

At start up check engine light, service esc, service parking brake. Code reader shows code P0304 misfire cylinder number 4.

ENGINE

Lifter failure on number 2 cylinder.

ENGINE

Lifter failure at 8629 miles. All warning lights went on at time of incident, truck would barely drive home and I had it towed into the dealership where they replaced the entire bank of lifters. This is on my repair order- "Checked and found dead mis on cylinder 4 and ticking noise from engine//performed compression test and found no compression on cylinder 4//removed passenger side cylinder head and found lifter bad causing push rod to bend//replaced all lifters on right bank and 1 pushrod//changed oil and filter//filled coolant and test drove and found all ok. I called Chevy at time of incident (1/21/22) and opened case# 9-7252876703 stating I wanted both banks of lifters replaced because I pull a 30' camper with my family and didn't want the other side to fail while I'm pulling 7000+ pounds. They declined to replace the other bank stating that since the vehicle had more than 5000 miles it did not qualify for both sides to be replaced and it was for only vehicles after 11/21 and mine was built 2/21. I still would like to get the other bank of lifters replaced under warranty.

POWER TRAIN

Lifter failure at 8629 miles. All warning lights went on at time of incident, truck would barely drive home and I had it towed into the dealership where they replaced the entire bank of lifters. This is on my repair order- "Checked and found dead mis on cylinder 4 and ticking noise from engine//performed compression test and found no compression on cylinder 4//removed passenger side cylinder head and found lifter bad causing push rod to bend//replaced all lifters on right bank and 1 pushrod//changed oil and filter//filled coolant and test drove and found all ok. I called Chevy at time of incident (1/21/22) and opened case# 9-7252876703 stating I wanted both banks of lifters replaced because I pull a 30' camper with my family and didn't want the other side to fail while I'm pulling 7000+ pounds. They declined to replace the other bank stating that since the vehicle had more than 5000 miles it did not qualify for both sides to be replaced and it was for only vehicles after 11/21 and mine was built 2/21. I still would like to get the other bank of lifters replaced under warranty.

UNKNOWN OR OTHER

I have just been made aware that there is a lot going on right now with the l87 6.2 motor. I purchased my truck last September so I e had it almost a year 1/2. I recently started having what seems like a misfire issue as of 1/20/2025. I have it scheduled to be checked out Friday 1/24/2025. I’m just reporting this to cover my back if any recall or anything comes about. In addition I’ve had regular oil changes and maintenance on the truck. It’s currently inspected and insured.

POWER TRAIN

I have just been made aware that there is a lot going on right now with the l87 6.2 motor. I purchased my truck last September so I e had it almost a year 1/2. I recently started having what seems like a misfire issue as of 1/20/2025. I have it scheduled to be checked out Friday 1/24/2025. I’m just reporting this to cover my back if any recall or anything comes about. In addition I’ve had regular oil changes and maintenance on the truck. It’s currently inspected and insured.

ENGINE

I have just been made aware that there is a lot going on right now with the l87 6.2 motor. I purchased my truck last September so I e had it almost a year 1/2. I recently started having what seems like a misfire issue as of 1/20/2025. I have it scheduled to be checked out Friday 1/24/2025. I’m just reporting this to cover my back if any recall or anything comes about. In addition I’ve had regular oil changes and maintenance on the truck. It’s currently inspected and insured.

ENGINE

The contact owns a 2021 Chevrolet Silverado 1500. The contact stated while driving approximately 70 MPH and attempting to overtake a semi, the vehicle lost automotive power and stalled. The vehicle was later towed to the local dealer who diagnosed that the engine had seized and needed to be replaced. No further information was available. The vehicle was not yet repaired. The manufacturer was notified of the failure, but no assistance was offered. The failure mileage was 100,000.

ENGINE

2021 Chevy Silverado RST 6.2 Crankshaft Failure – Trust bearing / Main Bearing – Verified by GM dealership. This incident occurred without any prior warning indicators. The check engine light illuminated only after the engine began to seize, and the engine abruptly stalled. At the time of the failure, the vehicle was traveling at 60 MPH on a busy highway. Upon the event, the vehicle came to an immediate stop and could not be restarted. The engine failed to turn over, rendering the vehicle inoperable and partially obstructing traffic. The vehicle was subsequently towed to a local General Motors dealership, where it was determined that the failure was due to a crankshaft thrust and main bearing issue. The vehicle has 27,000 miles on the odometer.

ENGINE

Started my truck and the check engine light was flashing along with a few other warming lamp lit up. When I went to drive the truck the engine started to make some noise, and didn't have much power. After being diagnosed by the dealer ship the motor needed new valves, lifters and camshaft. The bill for the repairs is going to be around $8,500 and GM is not willing to help with the costs.

ENGINE

Total catastrophic engine failure. Occurred at roughly 80,000 miles. Engine bearing shattered causing total engine loss. Needed to be replaced. Occurred in May 2023. There were no precursors to the event and the engine had been well maintained. I noticed an investigation of my vehicles engine and thought I should report this.

ENGINE

Major engine failure / main bearing failure with the engine burning oil and no warning signs no oil leaks or no burning oil smoke out of exhaust. I’m in the process of having the engine re built out of pocket on this date 1/19/2025 and have no documentation from repair shop at this time so I can’t up load any further information till I get it completed,

ENGINE

I was driving 65mph down the freeway when the truck suddenly turned off and the dash told me to put in neutral and start again so I did just that. Made it about another mile and the truck completely turned off and wouldn’t turn back on there was nowhere to pull over or get off the freeway in that time frame so I was stopped in the middle of the highway with my family in the truck. Luckily a guy in another truck was able to push me over to the shoulder with his vehicle where I sat and waited four hours for a tow to the dealership. Two days later they called me and told me it’s spun a bearing and threw two rods and needed a new engine. I’m anal about servicing my vehicles they told me it just happens, but it was a brand new truck with only 35k miles. Ever since I got the new engine installed it’s constantly squeaking and they can’t seem to pin point the issues I feel like it’s going to happen again and this next time I’ll probably be out of warranty and it’ll be out of pocket for me to fix.

ELECTRICAL SYSTEM

Started The Vehicle and the Steering wheel would not turn. Warning said: Service ESC & Service Power Steering Drive and the Stability Control Light came on. After ready many complaints about the same thing, we turned the car off for 20 minutes and then on again and it worked. But this is dangerous.

STEERING

Started The Vehicle and the Steering wheel would not turn. Warning said: Service ESC & Service Power Steering Drive and the Stability Control Light came on. After ready many complaints about the same thing, we turned the car off for 20 minutes and then on again and it worked. But this is dangerous.

ENGINE

The crankshaft bearings failed causing engine to knock very loudly. I didn't get an engine light. Dealership did replace one bearing and said lifters we fault and replaced. This happened with just over 33000 miles on truck. I didn't receive any extended warranty from manufacturers for any problems that may occur in future from pieces of metal or other contamination to inside of engine.

ENGINE

Engine lifter failure at 75 k miles

ENGINE

Engine stopped working while driving on major highway. Coasted to stop on shoulder. Truck was towed to nearest Chevy dealer, Parkway Chevy, Tomball, TX ([XXX]). Diagnosed bearings failed, camshaft froze and engine valve damaged. After rude treatment by service agent and service manager, towed truck to original dealer in Conroe, TX-- Buckalew Chev/Keating Chev (Nov. 25, 2024). They confirmed problem and truck has been sitting at their dealership since Nov. 25, 2024 waiting for re-mfgd engine. No timeline given for replacement. Bought another truck (Toyota Tundra -- [XXX]). INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

FORWARD COLLISION AVOIDANCE: WARNINGS

While driving down a major, extremely dangerous highway [XXX] in Pasco County, FL) my truck randomly shut off (with zero warning, no check engine lights, nothing) Thankfully, i was already in the right hand lane and managed to coast into a gas station. At 60, 375 miles on my 2021 truck I was 352 miles outside of the powertrain warranty, so I had my truck towed to the closest chevy dealership to see if they would good-will the warranty. They (Chevy) reported to me that there was a rod-knock with an estimate of $17,203.52 to rebuild the motor. I would also have to pay approximately $2000 (10 hrs of labor) for tear down of motor to even see if GM would POSSIBLY pay out anything on warranty. I am the only owner of this truck since day 1. I have every oil change record that was done as specified by the manufacturer. I have no means of transportation at this time. My truck is available for inspection. I am also unable to take out any other vehicle loans while I am forced to pay for a truck that now, has no motor. Also, I went in for a recall of a software update for the forward collision system. Previous to the dealerships update, the system was working fine. After the update, the collision system no longer works. This is greatly affecting my ability to work, and function as a member of society. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

While driving down a major, extremely dangerous highway [XXX] in Pasco County, FL) my truck randomly shut off (with zero warning, no check engine lights, nothing) Thankfully, i was already in the right hand lane and managed to coast into a gas station. At 60, 375 miles on my 2021 truck I was 352 miles outside of the powertrain warranty, so I had my truck towed to the closest chevy dealership to see if they would good-will the warranty. They (Chevy) reported to me that there was a rod-knock with an estimate of $17,203.52 to rebuild the motor. I would also have to pay approximately $2000 (10 hrs of labor) for tear down of motor to even see if GM would POSSIBLY pay out anything on warranty. I am the only owner of this truck since day 1. I have every oil change record that was done as specified by the manufacturer. I have no means of transportation at this time. My truck is available for inspection. I am also unable to take out any other vehicle loans while I am forced to pay for a truck that now, has no motor. Also, I went in for a recall of a software update for the forward collision system. Previous to the dealerships update, the system was working fine. After the update, the collision system no longer works. This is greatly affecting my ability to work, and function as a member of society. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

ENGINE

While driving down a major, extremely dangerous highway [XXX] in Pasco County, FL) my truck randomly shut off (with zero warning, no check engine lights, nothing) Thankfully, i was already in the right hand lane and managed to coast into a gas station. At 60, 375 miles on my 2021 truck I was 352 miles outside of the powertrain warranty, so I had my truck towed to the closest chevy dealership to see if they would good-will the warranty. They (Chevy) reported to me that there was a rod-knock with an estimate of $17,203.52 to rebuild the motor. I would also have to pay approximately $2000 (10 hrs of labor) for tear down of motor to even see if GM would POSSIBLY pay out anything on warranty. I am the only owner of this truck since day 1. I have every oil change record that was done as specified by the manufacturer. I have no means of transportation at this time. My truck is available for inspection. I am also unable to take out any other vehicle loans while I am forced to pay for a truck that now, has no motor. Also, I went in for a recall of a software update for the forward collision system. Previous to the dealerships update, the system was working fine. After the update, the collision system no longer works. This is greatly affecting my ability to work, and function as a member of society. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL

1. The automatic tailgate opens by itself randomly. It appears to be malfunctioning. I am unable to open it from the tailgate now. When it’s open it continues to attempt to unlatch making the noise. It’s opened while driving. 2. So far I lost a cooler on the highway due to this problem which would cause a road hazard to other drivers. 3. I brought it to the dealer they said it’s not there problem due to my vin not matching the recall even though there’s a recall for this problem with same year trucks. 4. It has not been inspected due it not being an official recall. 5. No warning lights regarding this issue.

ELECTRICAL SYSTEM

1. The automatic tailgate opens by itself randomly. It appears to be malfunctioning. I am unable to open it from the tailgate now. When it’s open it continues to attempt to unlatch making the noise. It’s opened while driving. 2. So far I lost a cooler on the highway due to this problem which would cause a road hazard to other drivers. 3. I brought it to the dealer they said it’s not there problem due to my vin not matching the recall even though there’s a recall for this problem with same year trucks. 4. It has not been inspected due it not being an official recall. 5. No warning lights regarding this issue.

UNKNOWN OR OTHER

1. The automatic tailgate opens by itself randomly. It appears to be malfunctioning. I am unable to open it from the tailgate now. When it’s open it continues to attempt to unlatch making the noise. It’s opened while driving. 2. So far I lost a cooler on the highway due to this problem which would cause a road hazard to other drivers. 3. I brought it to the dealer they said it’s not there problem due to my vin not matching the recall even though there’s a recall for this problem with same year trucks. 4. It has not been inspected due it not being an official recall. 5. No warning lights regarding this issue.

STRUCTURE:BODY

I washed my truck and now suddenly the tailgate opens and closes whenever it decides and I have paint that is bubbling and it looks as if it’s gonna all chip right off the hood

ELECTRICAL SYSTEM

I washed my truck and now suddenly the tailgate opens and closes whenever it decides and I have paint that is bubbling and it looks as if it’s gonna all chip right off the hood

POWER TRAIN

Vehicle is shuttering while driving, vibrating at different speeds and it feels like the wheels are locking.

VEHICLE SPEED CONTROL

Vehicle has less than 35k miles. Vehicle started and operated normally Attempted to turn onto main thoroughfare from a stop. While still in drive, vehicle engine rev’d up but transmission did not engage. Attempted to cycle through gear selector with same result. Reverse is the only gear that allowed vehicle movement. Serious safety concern if this were to happen while traveling at any significant speed or if trying to merge or cross heavy traffic. Vehicle has not had an official diagnosis, but I believe this is a transmission valve body problem known to the manufacturer. There was no indication prior to this event of any mechanical or electrical problems with the vehicle. This issue could easily get someone killed.

ENGINE

Vehicle has less than 35k miles. Vehicle started and operated normally Attempted to turn onto main thoroughfare from a stop. While still in drive, vehicle engine rev’d up but transmission did not engage. Attempted to cycle through gear selector with same result. Reverse is the only gear that allowed vehicle movement. Serious safety concern if this were to happen while traveling at any significant speed or if trying to merge or cross heavy traffic. Vehicle has not had an official diagnosis, but I believe this is a transmission valve body problem known to the manufacturer. There was no indication prior to this event of any mechanical or electrical problems with the vehicle. This issue could easily get someone killed.

POWER TRAIN

Vehicle has less than 35k miles. Vehicle started and operated normally Attempted to turn onto main thoroughfare from a stop. While still in drive, vehicle engine rev’d up but transmission did not engage. Attempted to cycle through gear selector with same result. Reverse is the only gear that allowed vehicle movement. Serious safety concern if this were to happen while traveling at any significant speed or if trying to merge or cross heavy traffic. Vehicle has not had an official diagnosis, but I believe this is a transmission valve body problem known to the manufacturer. There was no indication prior to this event of any mechanical or electrical problems with the vehicle. This issue could easily get someone killed.

POWER TRAIN

The 8-speed automatic transmission (8L90) has been failing. It has put me in my passengers safety at risk because my truck can lurch forward without warning due to delayed downshifting and RPM surge. Yes, the dealership has confirmed this issue multiple times. The component has been inspected by the dealership multiple times. Yes, check engine light came on and yes there was symptoms before the failure such as lurching jerking, surging harsh and erratic shifting. They first appeared at 55,000, MI. It continues to happen to this day. I have an appointment scheduled for today at 9:20 a.m. for the dealership to look at it again but this is a legitimate concern.

SERVICE BRAKES

When putting vehicle in PARK and releasing the foot brake it rolls back an excessive amount of space sometimes it rolls back so much we begin to get scared thinking we are still in DRIVE and jump back in vehicle just to learn we are in PARK. We have had this issue since the day of getting truck in August of 2024 and how much it rolls back is never consistent on the length of the roll back. Sometimes it feels like it make even slip out of gear and just keeping rolling. It’s very scary and we have almost knocked ourselves out when it happens trying to jump back in to stop it.

UNKNOWN OR OTHER

When putting vehicle in PARK and releasing the foot brake it rolls back an excessive amount of space sometimes it rolls back so much we begin to get scared thinking we are still in DRIVE and jump back in vehicle just to learn we are in PARK. We have had this issue since the day of getting truck in August of 2024 and how much it rolls back is never consistent on the length of the roll back. Sometimes it feels like it make even slip out of gear and just keeping rolling. It’s very scary and we have almost knocked ourselves out when it happens trying to jump back in to stop it.

POWER TRAIN

When putting vehicle in PARK and releasing the foot brake it rolls back an excessive amount of space sometimes it rolls back so much we begin to get scared thinking we are still in DRIVE and jump back in vehicle just to learn we are in PARK. We have had this issue since the day of getting truck in August of 2024 and how much it rolls back is never consistent on the length of the roll back. Sometimes it feels like it make even slip out of gear and just keeping rolling. It’s very scary and we have almost knocked ourselves out when it happens trying to jump back in to stop it.

POWER TRAIN

On January 6 and 7, 2025, the broken transmission valve body was subjected to inspection by a Chevrolet dealership. The vehicle exhibited faulty gear shifts, which resulted in reduced speeds and triggered the activation of "limp mode." This malfunction occurred while driving under severe winter storm conditions, posing a potential risk for serious injury. The issue was methodically diagnosed and documented for parts replacement. Furthermore, the transmission service indicator activated via the associated application, and the check engine light illuminated alongside a blinking "D" mode indicator at the time the warning lights were activated. The initial signs and symptoms of the issue were first observed at 11:00 PM on January 5, 2025.