GMC Complaints

Won't shift into park alert came on. Vehicle wouldn't shift into park. Danger of vehicle roll off? Took to GM dealer who replaced GM part 13545094 transmission controller aka shifter assembly. It is believed this defect was detected and recalled on 2018 GMC Acadia models. My 2019 was made in 2018. In service date 10/04/18.

Transmission self destructed at 68,000 miles. Had to have it replaced at GMC dealership at a cost of over $7,000. GMC did not offer any coverage of the cost.

GM installed a 2023 6.2L engine in my 2019 GMC. The engine locked up while I was driving it. It had about 54,000 miles on it. There is a recall on the vehicles with the 6.2 GM engines that were made between 2021 and 2024. However since they installed it in my 2019 they are telling me they won't warrant it because the recall just list the vehicle year and not the motor year. This is not right.

While driving my 2021 GMC Yukon?XL, the vehicle unexpectedly lost acceleration. After lifting off the gas pedal, it jolted forward, triggered a “Reduced Performance” dashboard warning, and remained in what felt like second gear, refusing to shift. I immediately pulled into a parking spot; when I attempted to reverse, the vehicle would not move backward. As you may imagine, this was a major safety concern, as I had my [XXX] and [XXX] children in the vehicle with me. I had the Yukon inspected at a GMC dealership, where a technician confirmed the issue originated from a faulty transmission valve body. My independent research has revealed this to be a widespread defect in the 2021 Yukon XL, prompting GM to issue Special CoverageXXX, which explicitly covers valve-body replacements for 2021 Yukon XLs experiencing reduced performance. Despite meeting these criteria and receiving identical diagnostic alerts, I was informed that my VIN is not covered. I am formally requesting that this safety-related defect—widespread among this model year—be recognized and my VIN included under Special Coverage XXX. The valve body causing the loss of propulsion in my Yukon XL is exactly the same defective component GM has acknowledged and is covering under this program. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2014 GMC Sierra 1500. While the contact's husband was driving at an undisclosed speed, the contact became aware that there was smoke coming from the rear window and the window shattered. The contact stated that the defroster was operating during the failure. The contact stated that the shattered glass had fallen on the contact's minor son, who was seated in the rear seat. The son had not sustained any injuries. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The dealer was made aware of the failure. The contact was informed that the repair was previously performed and covered under the warranty. The contact was informed that the current repair was not covered under warranty. The contact was advised to contact the NHTSA Hotline to report the failure. The manufacturer was not made aware of the failure. The failure mileage was approximately 156,800.

In these vehicles between two thousand and five and two thousand and seven are constantly, such as my vehicle, low oil pressure and lower rod bearing failure constant is which what I have and due to wiring cruise control becomes no good because of computer failure. I cannot afford to fix the lower rod bearings and notice that you have already a recall for trucks, twenty twenty one and up.But this problem has been ongoing from gm since twenty twenty five or more. I also took my vehicle in for an airbag recall.And after that, I still have an airbag light on after they fix the airbag recall.0

The contact owns a 2018 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the air conditioning system became inoperable. There was no warning light illuminated. The contact stated that the air conditioning system failed to function properly. The vehicle was taken to an independent mechanic, where it was diagnosed, and determined that the air conditioning condenser had failed and needed to be replaced. The vehicle was not repaired. The dealer was not contacted. The vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was not available.

The contact owns a 2004 GMC Envoy. The contact stated that while the vehicle was parked and unoccupied, the contact noticed that the front passenger's door was on fire. The contact stated that he arrived home just in time and noticed the fire. The contact stated that, because it was raining, the contact's wife had powered the window up; however, the contact noticed that the window was down when the fire occurred. In addition, the contact stated that the fire was blazing, and after the fire was extinguished, the smoke was still visible. The contact extinguished the fire. The contact disconnected the battery. In addition, the contact stated that it could have been a huge fire because the fuel tank had just been refilled prior to the failure. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 133,295.

The contact owns a 2016 GMC Terrain. The contact stated that while driving approximately 20 MPH, a second vehicle crashed into the front passenger side of the vehicle. During the crash, the vehicle sustained severe damage to the front passenger side, but no air bags inside the cabin of the vehicle deployed. The driver of the other vehicle reported no injuries, and the air bags in her vehicle did deploy. The contact was transported from the scene of the crash to the local hospital with multiple injuries that included a head contusion and burn, left knee contusion, right hand, and right foot contusions. A police report was taken at the scene, and the vehicle was towed to the local collision center. The cause of the failure was not determined. The manufacturer and local dealer were not contacted. The failure mileage was 129,000.

Vehicle lost steering and brakes suddenly. Many errors on screen such as: Brake System Failure, ABS Failure, ESC Failure, Traction Control Failure, Maximum Vehicle Speed 43mph. Was able to slowly get home with no power assisted brakes. Did not drive it any more until it was taken to dealer 2 days later and the dealer could not replicate the errors. Dealer was able to see stored error codes; however, they could not verify any errors in any of the modules or computer. Dealer wants us to take it back and wife is scared to drive it due to no fixes or repairs. Loss of brakes and steering is NOT a situation to ask an owner to 'bring back when it happens again"