GMC Complaints

1-'Engine Oil Low Add Oil' warning sign is being displayed. Vehicle is burning oil with no leakages. Warning sign has come on multiple times; authorized manufacture dealer service center finds no failure. Independent service center finds oil consumption to exist without leaks anywhere and beliefs this is due to a known engine failure in this model. 2-'Service Transmission Now Unable to Shift Soon' warning sign appears while driving but authorized manufacture dealer service center is unable to reproduce or determine issue.

The contact owns a 2018 GMC Acadia. The contact stated that while the vehicle was parked, the gear shifter was shifted into park; however, the gear shifter failed to function as intended. The contact stated that the “Shift to Park” message was displayed. The vehicle was taken to the dealer where it was diagnosed with a failed shift to park gear. The contact stated the dealer had not provided a cause for the repair. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 48,000.

The contact owns a 2021 GMC Yukon. The contact stated that while his wife was driving at an undisclosed speed, the vehicle lost automotive power. The Electronic Stability Control warning light was intermittently illuminated. The vehicle was towed to a local independent mechanic where it was diagnosed with a spun rod bearing failure; however, further investigation was needed. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 102,000.

Sold 2018 GMC Acadia by LEE GMC in auburn. Acadias shift to park was defective, dealership replaced before sale did not disclose, shift to park and transmission malfunctions occurred. I returned Acadia to the dealership several times and they would never properly fix or address my concerns now my vehicle is unsafe to drive. I have documentation to support the claims in my letter, I can send as well if you’d like. Thank you Will send attachment

On [XXX] my vehicle displayed an engine light on the dash. The light went on and off randomly throughout the day. The vehicle was hooked up to a computer that said there were no issues and everything was fine. On [XXX] I drove the vehicle over 240 miles to Pittsburgh and back with no lights. At one point the vehicle did make a loud noise for the drive but I took it out of cruise control and everything was fine. On [XXX] while driving to Poconos, PA with my family (husband, self, children ages [XXX] , [XXX] , [XXX] and [XXX] ) on [XXX} at approximately mile marker [XXX] the vehicle's engine quit working. The engine light came on and we were able to coast off of a bridge and onto the shoulder of the highway. We were unable to exit the vehicle due to high rates of speed of oncoming traffic and the shoulder not having much room. We contacted OnStar who sent a state trooper to assist with traffic control until a tow could get to our area. The vehicle was towed to Blaise Alexander in Bloomsburg, PA. My and my three youngest children had to ride with the state police officer and my husband and older son rode with the tow truck due to not having anything to fit a family of 6. The police officer told me that he had a 2024 GMC Yukon Denali have the same issue in the same spot on the highway a week ago. The vehicle has just over 25,054 miles on it. On 3/10/25 Blaise Alexander called to state that there was metal in the engine and the engine would need to be replaced. The service manager stated that they have had a few GMC Yukon Denali vehicles with this issue and that the engines may be on back-order. I have also had issues with radio presets resetting, audio not working with turn signals, navigation, radio and phone and alignment since I owned it for the last [XXX] days. From my research, this is a known problem with GM engines for the engines in the 2022 GMC Yukon Denali. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

The contact owns a 2016 GMC Yukon. The contact stated that while driving at 65 MPH and attempting to accelerate, the vehicle briefly shuddered before returning to normal functionality. The check engine warning light was illuminated. The vehicle was taken to an independent mechanic, who diagnosed a failure with the torque converter. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was unknown.

The vehicle one week after purchasing has had a tapping noise coming from engine and a rattling noise as well that you hear from the inside of vehicle. I have taken vehicle to two separate GM dealers. The first being where vehicle was purchased and they did not log in visit and basically said nothing could be done until engine breaks. The second dealer was only able to duplicate the rattling noise but had no loaner for me and advise would contact GM for next steps since a complaint has been filed. As of today nothing has been done. The second dealership also confirmed orange peel on paint and nothing either.

When vehicle is put into Park I keep getting a "Shift to Park" message and cannot turn off my vehicle. I cannot lock the door.

The backup camera on my vehicle stopped working completely, displaying a blank screen. All other cameras and sensors continue to function normally. The dealership identified the issue as the camera having “shorted out” and is replacing it with a completely new unit. The faulty camera is currently with the dealership, and I assume it would be available for inspection upon request. It is being replaced and I will receive a bill in a few days (Wednesday March 10, 2025). The backup camera is a critical safety feature designed to prevent collisions with pedestrians, objects, and other vehicles when reversing. Without a functioning camera, visibility is significantly reduced, increasing the risk of an accident, especially in crowded parking lots or areas with low visibility. The sudden and unexplained failure of this system is a serious safety concern. Yes, the dealership confirmed the issue when I brought my vehicle in for inspection. They determined that the camera had “shorted out” and ordered a full replacement. The vehicle has been inspected by the dealership, which is handling the replacement. To my knowledge, no manufacturer representatives, police, or insurance agents have examined the issue. There were no warning lights, error messages, or other indications before the failure. The backup camera was functioning normally, then suddenly stopped working, displaying a blank screen. I have heard that Cadillac and GMC Acadia models have experienced similar backup camera issues, leading to recalls due to sudden failures. Given that my vehicle’s camera “shorted out” without warning, I believe this may be part of a broader issue affecting GM vehicles. If this is a recurring problem, it poses a serious safety risk and should be investigated further.

The contact owns a 2018 GMC Savana. The contact stated that while stopped at a traffic light, the vehicle stalled. The oil pressure light was illuminated. After several attempts, the vehicle failed to restart. The Police Department was called, and the Officer helped to push the vehicle out of the roadway. A police report was not filed. The vehicle was towed to the local dealer where it was diagnosed that the engine had failed and needed to be replaced. The battery was replaced, but the vehicle failed to restart. The vehicle was towed back to the residence and was not repaired. The vehicle was then towed to an independent mechanic, where it was diagnosed that the engine had failed and needed to be replaced. The repair was pending. The manufacturer was not notified of the failure. The failure mileage was 72,634.