GMC Complaints

I noticed a sticker in driver door stating recall however no evidence. The vehicle will not pull hills, back up on a hill and will not accelerate over 25 miles per minute. Dangerous to drive on roads. Took vehicle to a GMC dealer for diagnostic test, received the report for what the report found. Took the report to auto shop to get repaired however the vehicle still continues with same issue. Took the vehicle to another auto shop. I was informed of some differences added issues. I had those issues fixed. The vehicle still running the exact way after all of the repairs. The top hood on the vehicle paint starts peeling after a year of owning it. I purchased the vehicle at Kia of Gardendale 2020. No one had any answer regarding the situation. Very disappointed with a GMC vehicle. I just want to know the mystery.

Post recall L87 I had a catasrophic engine failure. 70 mph highway engine seized lost propulsion. 38000 miles. No warning, Engine has been replaced by GM

To Whom It May Concern, This letter is submitted to report a safety-related defect involving an airbag sensor failure on a 2022 GMC Canyon. The vehicle experienced a failure of an airbag sensor that is part of the Supplemental Restraint System (SRS). The sensor is required for proper airbag deployment and system readiness. Failure of this component compromises the operation of the airbag system and presents a potential safety risk to vehicle occupants. The failure occurred on a vehicle approximately four years in service and was diagnosed as an airbag sensor defect. The sensor assembly includes an integral gasket, and the failure of that gasket resulted in sensor malfunction and airbag system fault indications. General Motors and the administrator of the GMC Platinum Protection Plan were notified of the defect. Coverage for the repair was refused on the basis that a component of the sensor assembly was allegedly excluded, despite the fact that the gasket is integral to the sensor and the failure affects a federally regulated safety system. As a result of this refusal, a safety-related defect involving an airbag system was not repaired. The matter was treated as a contractual coverage issue rather than addressed as a potential defect impacting occupant protection. This submission is intended to notify NHTSA of a failure involving an SRS component that may affect other similarly manufactured vehicles. An airbag sensor failure raises concerns regarding component durability, system reliability, and compliance with applicable Federal Motor Vehicle Safety Standards (FMVSS). This complaint is submitted for logging, review, and any action the Office of Defects Investigation deems appropriate.

Odometer Fraud. The contact purchased a 2015 GMC Sierra 2500. The contact stated that while attempting to register the vehicle, it was discovered that there was a mileage discrepancy. The vehicle was a dealer sale. At the time of purchase, the vehicle mileage was 189,458 and the contact stated he discovered on Carfax that mileage was 188,052; however, the contact discovered that the mileage was 112,708.

The engine light came on while driving, saying “engine power reduced”. It barely accelerates, RPMs go over 5, it chugs when driving. Taken to an independent service center.

The infotainment and instrumentation cluster will reboot while driving. This has happened multiple times while on the express way and while using super cruise. When the event happens the infotainment and instrument cluster will turn black for multiple minutes rebooting. At times they do not successfully reboot and forces the vehicle to pull over stop and force a system reset.

Transmission appears to be lunging and shuttering. Dealer has indicated that the valve body need to be replaced or the vehicle could leave me stranded or without propulsion while driving. From my research this appears to be related to other safety recall and service campaigns for this type of vehicle and the transmission that I have in my vehicle. Also the camera system doesn't work correctly as it relates to parking assist and collision control. My repair dealership has stated they are having trouble getting GM to cover this repair.

The contact owns a 2017 GMC Terrain. The contact stated that the vehicle failed to start. The vehicle was towed to an independent mechanic, where it was diagnosed with engine failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The vehicle was towed to the dealer, where the engine diagnostic result was confirmed. The vehicle was not repaired due to the cost. The contact stated that two years prior to the failure, the vehicle failed to accelerate as intended while depressing the accelerator pedal and the vehicle stalled. The manufacturer was not notified of the failure. The failure mileage was unknown.

I have went to a dealership to try and trade this vehicle in and they have informed me that this vehicles odometer has been rolled back prior to me purchasing it. It was not disclosed to me from Bob Rorhman Hyandia that this had happened.

NHTSA Team, I am the current owner of a 2021 GMC Yukon Denali (VIN: [XXX] ) with the 6.2L L87 V8. At approximately 148,239 miles, I experienced a catastrophic lifter failure. My mechanic diagnosed a failed AFM lifter and metal contamination, requiring full engine replacement. This is documented under GM Case #XXX. CARFAX revealed that prior to my ownership, lifters were replaced twice (~10,469 miles and ~25,572 miles). The dealership I purchased from did not disclose these prior repairs, as they used an alternative vehicle history check. Only upon this third lifter failure did my mechanic identify this recurring defect. I submit this to NHTSA’s investigation into post-repair failures of the GM 6.2L engines. The pattern shows prior remedies were insufficient. Supporting documents (CARFAX, mechanic report) are available. Please advise if further details or inspection of the failed engine components are needed. Thanks, [XXX] [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)