GMC Complaints

The windshield wipers quit working while driving during a down pour; some piece to the motor broke. This can cause severe injuries and even death due to the fact that it caused me to not be able to see where I was going and what was around me and could have driven off a high ramp. It hasn’t been inspected by anyone yet. There were no signs, warnings, or messages stating a failure may occur. This issue is available for review if requested until I get the car in for repairs. Will request to keep the part that is repaired Incase it’s needed for review after the fact.

The contact owns a 2019 GMC Acadia. The contact stated the center rear seat belt failed to extend as needed. The vehicle was taken to the dealer, who was unable to determine the cause of the failure or repair the vehicle. The manufacturer was not informed of the failure. The failure mileage was 72,456.

Driving down busy highway and suddenly had no brakes!!! No lights came on dashboard as a warning. Found out it was a braking pump that broke and shot metal pieces into the engine. Now im facing a new engine for a 2020 terrain!!

Back up camera does not work. It shows a blue screen and says service repair needed.

The shift to park in my 2018 GMC Acadia was faulty. On many occasions and randomly, the car would be in park but would not turn off, saying I needed to shift it to park in order to turn the car off. This has left me unable to turn my car off resulting in dead batteries and missed appointments and being late for work. This defect is well documented by GM in TSBs PIT5616A, 18-NA-297, and 19-NA-206, which describes the exact symptoms and repair that I had to have completed. This problem has been on going and as a teacher I cannot continue to be late for school because my car, though in park, would not turn off. Given GM’s prior acknowledgement of this defect, I believe reimbursement is warranted. I have never been notified of a recall on this.

The contact owns a 2021 GMC Sierra 1500. The contact stated that while driving at an undisclosed speed, the vehicle inadvertently lost motive power. The contact was able to pull over to the shoulder of the roadway, where the vehicle failed to restart. No warning lights were illuminated. The vehicle was not taken to the dealer or an independent mechanic. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); the VIN was included, but parts were not yet available. The manufacturer was not notified of the failure. The failure mileage was 60,000.

The contact owns a 2024 GMC Sierra 2500. The contact stated that transmission fluid was leaking onto the garage floor. The contact stated that while driving at an undisclosed speed, the transmission hesitated before shifting. The contact stated that the check transmission warning light was illuminated. The vehicle was taken to a local dealer; however, the dealer was unable to diagnose the vehicle. The vehicle was not repaired. The contact had inquired if the transmission needed to be replaced, and was informed that transmissions were on a national back order. The manufacturer was not informed of the failure. The failure mileage was 8,808.

After completion of a recall fix by the dealer for the grill while driving the front grill deflector detached striking the front hood and top of the cab before flying behind my vehicle barely missing a following vehicle and settling alongside the road. I pulled over, inspected the front of my vehicle to assure it was safely drivable. Once I removed loose pieces I returned and retrieved the top grill from the roadside then drove directly to the dealer who completed the recall fix. They have ordered a full grill for replacement. The recall fix/repair failed within day of completion. GM Program # N242490120 Status Complete NHTSA 25V060 Date Issued: 2025-02-06 Description General Motors has decided that a defect which relates to motor vehicle safety may exist in certain 2022 model year GMC Sierra 1500 vehicles equipped with chrome front grille deflectors. One or more of the attachments that hold the front upper grille deflector in place may fracture over time. If all eight attachment points break, the deflector may detach from the vehicle while driving. Safety Risk Description If a front grille deflector detaches unexpectedly while driving, there is increased risk of a crash. Repair Description Dealers will reinforce or repair all attachment points on the chrome front grille deflector. Recall Completed 2025-08-21

I have had multiple sensor issues with my Acadia since reaching 60000 miles. Currently, there is a thermostat sensor causing hard shifting, No cold air blowing from the AC, stabilitrack, traction control, steering assist reduced and fan running after turning off. I would not report it but I am in a facebook group where MULTIPLE people are reporting having the same issue in their Acadia's.

AFTER PUTTING CAR IN PARK AND TURNING ENGINE OFF, SHIFT TO PARK WILL APPEAR ON DASH- CAR ALREADY IN PARK .