HYUNDAI TUCSON HYBRID

HYBRID PROPULSION SYSTEM

The contact owns a 2024 Hyundai Tucson. The contact stated while driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. In addition, the contact stated that the hybrid system failure warning light was illuminated. The contact stated that the failure had persisted. The contact drove the vehicle to the shoulder of the roadway and turned off the vehicle. The contact stated the vehicle remained parked for twenty minutes before the vehicle was restarted, and the hybrid system independently reset. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The contact stated that previously the vehicle was taken to the dealer, however the failure was not duplicated. The manufacturer was made aware of the failure but provided no assistance. The contact was provided with a monetary offer because of the inconvenience. The failure mileage was approximately 5,966.

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

Issue has happened twice now, about 2 months apart. Driving at highway speeds, 60-75 mph, no other cars around, no reason for braking or stopping, the emergency brake comes up for a few seconds, abruptly slowing the car down for no reason. Very scary as the car starts to slow down from a high speed, very jolting. I've complained to Hyundai but they claim they are not aware of the issue and there are no codes the vehicle puts out so they cant investigate further without replicating the issue, but its random and you don't know when its happening. I've looked online and it appears there are quite a bit of 2023/2024 Tucson's that are having the exact same issue I am.

FUEL/PROPULSION SYSTEM

📌 NHTSA Complaint Description (Modify as Needed) 🚨 Safety Issue: I purchased a brand-new 2025 Hyundai Tucson Hybrid on March 3, 2025, and within 5 minutes of driving and less than 20 miles, the vehicle stalled three times on a busy highway without warning. 🚨 Component/System Failure: The vehicle suffered a complete power loss, rendering it undrivable in the middle of the highway. The gas pedal became unresponsive, and I had no control over the vehicle’s movement. 🚨 Immediate Safety Risk: The sudden stalling on a highway put my family and other drivers at serious risk of a collision. We were left stranded for over 3 hours while waiting for assistance. The vehicle was inspected by Hyundai’s roadside assistance and later towed to the dealership. 🚨 Inspection & Confirmation of the Issue: The dealership and Hyundai’s technical team later diagnosed the issue as a failure in the electric oil pump and the oil pump control unit. Hyundai has not provided a clear resolution and is pushing for repairs, despite the vehicle failing immediately after purchase. The manufacturer and dealership have not provided a pre-delivery inspection report confirming whether the vehicle was defective before delivery. 🚨 No Prior Warning Signs: There were no warning lamps, error messages, or any prior symptoms before the failure. The issue occurred suddenly and repeatedly within minutes of taking delivery of the vehicle. 🚨 Request for Investigation: Given the severity of this mechanical failure and its potential to cause serious accidents, I am reporting this to the NHTSA for further investigation. This issue needs to be addressed immediately before it leads to a fatal accident for another Hyundai Tucson Hybrid owner.

POWER TRAIN

📌 NHTSA Complaint Description (Modify as Needed) 🚨 Safety Issue: I purchased a brand-new 2025 Hyundai Tucson Hybrid on March 3, 2025, and within 5 minutes of driving and less than 20 miles, the vehicle stalled three times on a busy highway without warning. 🚨 Component/System Failure: The vehicle suffered a complete power loss, rendering it undrivable in the middle of the highway. The gas pedal became unresponsive, and I had no control over the vehicle’s movement. 🚨 Immediate Safety Risk: The sudden stalling on a highway put my family and other drivers at serious risk of a collision. We were left stranded for over 3 hours while waiting for assistance. The vehicle was inspected by Hyundai’s roadside assistance and later towed to the dealership. 🚨 Inspection & Confirmation of the Issue: The dealership and Hyundai’s technical team later diagnosed the issue as a failure in the electric oil pump and the oil pump control unit. Hyundai has not provided a clear resolution and is pushing for repairs, despite the vehicle failing immediately after purchase. The manufacturer and dealership have not provided a pre-delivery inspection report confirming whether the vehicle was defective before delivery. 🚨 No Prior Warning Signs: There were no warning lamps, error messages, or any prior symptoms before the failure. The issue occurred suddenly and repeatedly within minutes of taking delivery of the vehicle. 🚨 Request for Investigation: Given the severity of this mechanical failure and its potential to cause serious accidents, I am reporting this to the NHTSA for further investigation. This issue needs to be addressed immediately before it leads to a fatal accident for another Hyundai Tucson Hybrid owner.

ENGINE

📌 NHTSA Complaint Description (Modify as Needed) 🚨 Safety Issue: I purchased a brand-new 2025 Hyundai Tucson Hybrid on March 3, 2025, and within 5 minutes of driving and less than 20 miles, the vehicle stalled three times on a busy highway without warning. 🚨 Component/System Failure: The vehicle suffered a complete power loss, rendering it undrivable in the middle of the highway. The gas pedal became unresponsive, and I had no control over the vehicle’s movement. 🚨 Immediate Safety Risk: The sudden stalling on a highway put my family and other drivers at serious risk of a collision. We were left stranded for over 3 hours while waiting for assistance. The vehicle was inspected by Hyundai’s roadside assistance and later towed to the dealership. 🚨 Inspection & Confirmation of the Issue: The dealership and Hyundai’s technical team later diagnosed the issue as a failure in the electric oil pump and the oil pump control unit. Hyundai has not provided a clear resolution and is pushing for repairs, despite the vehicle failing immediately after purchase. The manufacturer and dealership have not provided a pre-delivery inspection report confirming whether the vehicle was defective before delivery. 🚨 No Prior Warning Signs: There were no warning lamps, error messages, or any prior symptoms before the failure. The issue occurred suddenly and repeatedly within minutes of taking delivery of the vehicle. 🚨 Request for Investigation: Given the severity of this mechanical failure and its potential to cause serious accidents, I am reporting this to the NHTSA for further investigation. This issue needs to be addressed immediately before it leads to a fatal accident for another Hyundai Tucson Hybrid owner.

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

I have had two incidents where the emergency braking system applied itself when there was no reason for it to do so. Both times there was a car in the distance, over 20 feet away that was slowing, and I was slowing as well. The second time it happened, it was with great force and I was fortunate that the car behind me was able to brake in time and avoid rear ending me.

FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING

The contact owns a 2025 Hyundai Tucson. The contact stated while driving 15 MPH and depressing the brake pedal to decelerate, an unknown warning light was illuminated and a beeping sound was engaged. The contact stated that the vehicle failed to decelerate as intended and came to a sudden stop, causing another vehicle to crash into the rear of the vehicle. The air bags did not deploy. There was no injury sustained. The contact was able to drive the vehicle away from the scene. No police report was filed. There was no property damage. The vehicle was taken to the dealer, where it was test-driven, but the failure could not be duplicated. The dealer informed the contact that they had turned off all the sensors, except for the rearview camera sensors, to prevent the failure from reoccurring. The vehicle was diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 760.

FORWARD COLLISION AVOIDANCE: WARNINGS

The contact owns a 2025 Hyundai Tucson. The contact stated while driving 15 MPH and depressing the brake pedal to decelerate, an unknown warning light was illuminated and a beeping sound was engaged. The contact stated that the vehicle failed to decelerate as intended and came to a sudden stop, causing another vehicle to crash into the rear of the vehicle. The air bags did not deploy. There was no injury sustained. The contact was able to drive the vehicle away from the scene. No police report was filed. There was no property damage. The vehicle was taken to the dealer, where it was test-driven, but the failure could not be duplicated. The dealer informed the contact that they had turned off all the sensors, except for the rearview camera sensors, to prevent the failure from reoccurring. The vehicle was diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 760.

UNKNOWN OR OTHER

- Component that Failed: The Panoramic Sunroof (glass side that opens) - Safety Risk: Glass shattering above your head while driving, tons of glass falling below to the driver & passengers in the car | Shock of a loud gunshot while driving - causes wrecks - Vehicle Inspected: Currently at Hyundai, figuring out what to do - Warning signs: ABOLSUTLEY NONE - spontaneous explosion My husband, two friends, and I were traveling down the interstate at 55 mph, we heard a loud bang (like the sound of a gunshot)! Our panoramic sunroof sunshade was pulled back with the sunroof closed. Instantly, the sunroof exploded into a million tiny pieces of glass that partially rained down on our heads and shoulders and all over the rest of our car. It was quite a startling sound. There was a hole about 10 inches across in the sunroof and more pieces were continuing to fall out. To protect our heads, I closed the sunshade. Then, we could hear pieces hitting the shade and glass falling behind us on the road. Once we got home, the hole became much larger.