2019 CHEVROLET COLORADO

POWER TRAIN

Transmission Component: M5T: TRANSMISSION AUTO 8 SPD, 8L45 available for inspection. The vehicle shakes badly and shudders during acceleration and causes a brief inability to accelerate, often at higher speeds and with a great deal of rumbling and vibration. No other warning lamps, messages, or symptoms. The problem first appeared about 2 months ago. I recognized it as a persistent problem, and I was no longer comfortable driving the vehicle and feared that it would shut down while driving. I took my vehicle for diagnostic and maintenance at a local service center who also noticed that the transfer case "is making an unusual squeaking noise when driving". I was then notified that this is a known problem with this vehicle make and model for 2019 and referred here to file a complaint. Having less than 60K miles on this vehicle, I was referred to the dealership for possible next steps.

ELECTRICAL SYSTEM

Unable to remove ignition key. Sticks in the accessory's mode. This happens periodically and I can eventually get key out by continually moving shifter back and forth until key can be removed. Concerned that eventually this won't work. I noticed that this is the main complaint on the Chevrolet Colorado.

ELECTRICAL SYSTEM

The infotainment center goes out, then comes on on a frequent basis causing the loss of navigation system through CarPlay and now will not even connect to CarPlay also loses backup camera. In addition I have noted that when the blinker is on to signal a turn, it will stop the blinker system when the infotainment center goes out, which is a safety concern with the use of blinkers to signal approaching rear traffic to the vehicle. I have contacted the dealer and also see there’s an infotainment bulletin out. I have not had a response from the dealership as of this report. I am also a certified safety professional, and the loss of turn signal in conjunction with the infotainment center outage raises a safety concern in my opinion. This has been an ongoing issue with the system for the last year or so and has progressively gotten worse to the point that the screen now goes out every minute or so for 5 to 30 seconds and now CarPlay will no longer connect to phone for navigation. The constant screen going black started within the last 30 days of June 2025.

POWER TRAIN

Vehicle will make a loud humming sound going 50 to 65mph and when letting off the gas pedal. It will stop when pressing on the gas pedal or when vehicle slows down below 50mph

ENGINE

No warning lights or messages or anything. Blown head gasket and a large amount of coolant in the oil. I have an appointment to take it to a dealership the end of this week

ENGINE

My 2019 Chevrolet Colorado, equipped with the 3.6L LGZ engine, recently triggered a P0024 diagnostic trouble code. This code indicates a failure of the Bank 2 exhaust camshaft position actuator solenoid, a critical part of the variable valve timing (VVT) system. After researching, I discovered that General Motors has issued Special Coverage N232430470 for this exact issue on the 2020 Chevrolet Colorado, which uses the same LGZ engine and solenoid system. Despite the identical failure and engine design, my vehicle is not currently included in the coverage. I believe this reflects a systemic defect that affects multiple model years — not just 2020 — and that GM is choosing to limit coverage unfairly. This failure can result in check engine warnings, drivability issues, reduced fuel economy, and possibly emissions system non-compliance. I am requesting NHTSA to investigate whether this VVT solenoid issue warrants a broader recall or special coverage extension across model years with the LGZ engine (including 2019).

STEERING

You will be driving down the road and then the power steering goes in and out so stops working and then starts working again. Not safe especially on the highway. No lights go on on the dash. Chevy is currently trying to figure out the problem but has not yet.

ENGINE AND ENGINE COOLING

The contact owns a 2019 Chevrolet Colorado. The contact's husband stated that while driving 20 MPH, while attempting to turn into a parking lot, and another vehicle was attempting to exit the same parking lot, the brake pedal was depressed; however, the vehicle failed to respond. There were no warning lights illuminated. The contact's husband depressed the brake pedal, the brake pedal seized, and the contact had to veer and downshift to first gear to avoid crashing into the other vehicle. The vehicle was taken to an independent mechanic who diagnosed the vehicle with vacuum pump failure and a fractured part from the vacuum camshaft. The vehicle was not fully repaired. The local dealer was contacted; however, the vehicle was not repaired by the dealer because the vehicle was not under recall and parts were on back order, as per the dealer. The manufacturer was made aware of the failure and referred to the NHTSA Hotline to report the failure. The failure mileage was approximately 130,000.

SERVICE BRAKES, HYDRAULIC

The contact owns a 2019 Chevrolet Colorado. The contact's husband stated that while driving 20 MPH, while attempting to turn into a parking lot, and another vehicle was attempting to exit the same parking lot, the brake pedal was depressed; however, the vehicle failed to respond. There were no warning lights illuminated. The contact's husband depressed the brake pedal, the brake pedal seized, and the contact had to veer and downshift to first gear to avoid crashing into the other vehicle. The vehicle was taken to an independent mechanic who diagnosed the vehicle with vacuum pump failure and a fractured part from the vacuum camshaft. The vehicle was not fully repaired. The local dealer was contacted; however, the vehicle was not repaired by the dealer because the vehicle was not under recall and parts were on back order, as per the dealer. The manufacturer was made aware of the failure and referred to the NHTSA Hotline to report the failure. The failure mileage was approximately 130,000.

UNKNOWN OR OTHER

Service anti thief system when trying to start truck message comes on sometimes

SERVICE BRAKES

I was driving around 60mph on a highway with cruise control. Heavy traffic resulted in a major accident in front of me. I slammed my brakes, which prevented me from getting involved in the altercation. However, the vacuum pump on the Colorado shattered, and I was forced to drive on the highway with a limited ability to brake. I recall the brake pedal being flushed against the floor. Luckily, I am young and strong. However, if any elderly person were driving, they would not be able to brake the car due to the excessive force I had to apply. Furthermore, after pulling off the highway, my engine leaked oil. To empathize, after slamming my brakes, my brakes stopped working.