GMC Complaints

The contact owns a 2014 GMC Acadia. The contact received notification of NHTSA Campaign Number: 23V334000 (Air Bags); 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.

The contact owns a 2022 GMC Sierra 1500. The contact stated the vehicle was consuming an excessive amount of engine oil. The contact stated that engine oil needed to be added after each oil change. The contact stated that recently, the low oil warning illuminated. The contact had taken the vehicle to a local dealer, who was unable to diagnose the vehicle. The vehicle was not repaired. The contact recently received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling). The contact related the excessive oil consumption to the recall. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was informed of the failure. The failure mileage was approximately 47,000.

The contact owns a 2022 GMC Yukon. The contact stated that the turn signals audible sound failed to operate as designed. Additionally, while reversing into a parking spot, the vehicle turned off while going over a bump. The message "Park" was displayed after restarting the vehicle. The contact stated that while driving 25 MPH over a bumpy road surface, the vehicle turned off and the brakes became inoperable. The vehicle was coasted to the side of the roadway. Upon restarting the vehicle, the message "Service Transmission" was displayed, and the turn signal sound became operable. The contact was able to drive to the residence. The manufacturer was notified of the failure and agreed to tow the vehicle to a dealer to be diagnosed. The vehicle was not yet diagnosed or repaired. The failure mileage was approximately 25,000.

The fuel pump control module failed, 2021Acadia Denali First time, 9/22/21 8073 miles, the car was parked at the residence under the car port, when needed, the car would not start. No check engine or other indicators. Car was towed to dealer for repairs under warranty. Second time, 10/6/23 31879 miles, we were driving the car on a rural road, 55 mph speed limit with no shoulders when the car stopped in a curve. Had to flag down cars to keep them from hitting us for an hour till the wrecker loader it on the truck to take back to same dealership for warranty repairs. Third time, 7/29/25 48199 miles, we were again on a rural road 55 mph speed limit when the car stopped with my 71 year old wife alone in the car, again in a curve. This time there was a check engine light. I drove my truck to pick her up and assist her until the wrecker came. This time with luck I was able to restart the car and I followed her to our home where the tow truck picked it up and brought it to the same dealership for the third time for repairs under warranty. All three times the culprit was the fuel pump control module. Each time it was the same code in the ECM. Each time the dealership said they did a full check on the fuel system, pump, etc. and only replaced the fuel pump control module.

At startup today vehicle displayed “Brake Assist Failure. Press Hard to brake. Speed limited.” It also displayed “service.” It also displayed “ESC,” and the word “service. An internet search indicated this may be a common problem of this vehicle, caused either by a software error in the Electronic Brake Control Module, or due to a defective brake master cylinder. There is a GM service notice for these defects, N242471431. Regardless of the cause, the brake is extremely mushy, and requires a high degree of force to stop the vehicle. GM says there is no recall due to this defect. This is a brand new vehicle and therefore it must be a defect in the vehicle. Given that braking is a fundamental safety issue, it’s hard to believe there is no recall already issued.

The contact owns a 2016 GMC Acadia. The contact stated that while driving at an undisclosed speed, the second-row seat belts become inoperable. The contact stated that the seat belt buckle failed to latch as intended. An unknown dealer was contacted; however, the vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 206,000.

The transmission failed while driving it and no warning lights were visible on the dashboard before hand or afterwards ..the vehicle is presently at a legitimate transmission repair shop and needs a new transmission supposedly this particular vehicle is evidently not included in the recall although the make and model are listed as part of the recall.

I am receiving a "Shift to Park" warning intermittently when parking my truck. The truck is in park, but the transmission does not recognize this and flashes the warning on the dash and chimes. While this is happening, I cannot lock the vehicle, and the battery is being drained. I have read that this is a known issue with other GMC models as well. I just was given a $1074 bill to replace the transmission control with park sensor.

I am writing to express my extreme disappointment and serious concern regarding a critical safety failure I experienced with my 2025 GMC Sierra 1500 Denali Unlimited (VIN: [XXX] ), which I purchased brand new in April 2025 from Cavender GMC, San Antonio, TX. On Friday, [XXX], with fewer than 9,000 miles on the vehicle, I was driving on the highway at about 65 MPH, with my minor son in the vehicle when the dash suddenly displayed a Traction Control (TRC) Fault message, followed immediately by "Acceleration is Limited." The truck experienced a severe and unexpected power loss, severely restricting my ability to accelerate or maintain safe highway speeds. I was forced to pull off the road abruptly to avoid a potentially dangerous situation. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact's wife owns a 2014 GMC Yukon XL. The contact stated that on several occasions, the vehicle failed to start with the key in the ignition. The failure persisted and a yellow anti-theft warning symbol was displayed on the instrument panel. The contact stated that on one occasion the vehicle failed to start after several attempts and the contact became trapped inside the vehicle for approximately 5-6 minutes and was unable to unlock or open the doors. The contact attempted to use the remote and the key to unlock the doors but there was no electrical functions available. The contact stated that the temperature was very hot inside the vehicle, and he was starting to be deprived of oxygen due to the excessive heat. The contact’s wife who was inside the residence was able to unlock the vehicle from outside after several attempts of pressing and pushing the door handle, the key, and the remote. The contact stated that after the door was unlocked, the contact jiggled the key inside the ignition switch and the vehicle started. Medical attention was not needed; however, the contact stated that the failure could have been fatal if he did not have the cellphone to call for assistance. The contact eventually restarted the vehicle and drove to the dealer. The contact was provided a diagnostic fee and the vehicle remained with the dealer. The manufacturer was not yet notified of the failure. The vehicle was not diagnosed or repaired. The failure mileage was 120,079.