GMC Complaints

Tailgate opens up in Park and/or when Truck is shut off. Tailgate continues to click after it opens itself. I have found my truck battery dead if left connected overnight. For the last week i disconnect the battery when i shut the truck off, and reconnect when i want to start it to insure getting to work on time. Same problem as what is described on the current Recall N242469160. But yet my truck is not show a recall on it.

On [XXX] I took a trip with family through Ohio from Pennsylvania. While truck was in adaptive cruise control on highway, phantom braking occurred where truck slowed down from 70mph to about 60mph 5 times. No objects or vehicles in front of truck or around truck during the braking. The weather was mostly clear overcast at times with no rain or snow. Concerned if vehicles were behind me during the breaking causing an accident. It was abrupt completely out of the blue when it happened. Took truck into service on 1/8/25 for oil change and braking issue, dealership states there’s no service bulletin for issue. I have not used adaptive cruise control since. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Contacted General Motors to have the Recall software patch installed, appoint was set, vehicle was dropped off and now they are telling me there is nothing they can do, that the recall is not available. The software update is available, and is being installed on other vehicles. This is a life safety issue as the rear wheels can lock up at any time which could cause a vehicle accident involving the vehicle under recall as well any vehicles on the road around this vehicle when it happens. General Motors should be taking care of this asap instead of waiting. I do not feel safe driving the vehicle until they feel like they installing it.

The contact owns a 2020 GMC Sierra. The contact stated that while driving at speeds over 38 MPH, and the Lane Departure Warning System was activated the seat indicator did not vibrate or sound an alert as intended. The vehicle was taken to the dealer where the software was reset but the failure persisted. The manufacturer was not notified of the failure. The failure mileage was 47,000.

On December 26th 2024, I was travelling 5 mph or less while pulling into a parking space at a restaurant. As I let the steering wheel return to center, my hand hit the Resume button on the left side of the steering wheel and the vehicle immediately began to accelerate. I was able to step on the brake to prevent the vehicle from hitting the wall of the restaurant. The next day on December 27th, 2024, i was able to duplicate the problem. I had set the cruise at 55 mph before I came to a stop at a traffic light. I released the brake and pressed the Resume button and the vehicle immediately accelerated from a dead stop. I've been an automotive mechanic for over 30 years and I've never seen this happen before. It's my understanding that vehicles wouldn't engage cruise control unless the speed was over 35 mph.

The contact owns a 2019 GMC Acadia. The contact stated upon attempting to turn off the vehicle, the instrument panel remained operable with the message "Shift to Park" displayed while the gear shifter was already in park(P). The contact shifted out of park(P) and shifted back to park(P) several times until the vehicle responded as needed. The contact stated that the failure recurred, and the vehicle failed to successfully turn off after several attempts, causing the battery to become drained. The vehicle was then towed to the dealer. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 72,000.

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 unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was contacted and confirmed that parts were not yet available. The manufacturer was made aware of the issue and informed the contact that a second notice would be mailed when the parts were available. The contact had not experienced a failure. Parts distribution disconnect.

The contact owns a 2019 GMC Terrain. The contact stated while reversing the vehicle, the display screen failed to display an image and was instead displaying a blue screen. The backover prevention system warning light was illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 55,000.

The contact owns a 2025 GMC Sierra 2500. The contact stated that while driving at an undisclosed speed, the vehicle failed to accelerate as intended while depressing the accelerator pedal. The check engine warning light was illuminated. In addition, the contact stated that the RPM was fluctuating while driving. The vehicle was towed to a local dealer however, the vehicle was not diagnosed or repaired due to the warranty. The manufacturer was made aware of the failure. The failure mileage was approximately 600.

The front drive car seat motor is damaged. It will not recline making it very uncomfortable to drive. GMC has inspected the car and indicated that i need a new motor and seat frame. The cost is over 2600. Child safety is ultimately at risk if the driver is not fully comfortable at the wheel.