GMC Complaints

Vehicle struggles to shift from low gears; seems to completely miss 3rd gear. Codes from maintenance indicate TCC slip

The contact owns a 2020 GMC Acadia. The contact stated that while driving at various speeds, the vehicle stalled. There was no warning light illuminated. The contact stated that while his wife was driving at an undisclosed speed at an intersection, the failure recurred, and the vehicle stopped in the middle of the intersection. The vehicle failed to restart, and the driver was unable to pull over to the side of the road. The vehicle was towed to an unknown dealer, but was not diagnosed because the contact declined to pay the diagnostic test cost. The vehicle was then towed to the dealer where it was purchased, and the fuel pump module was replaced; however, the failure recurred 2-3 months later. The contact stated that the vehicle had failed to start. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 104,000.

The contact owns a 2019 GMC Yukon XL. The contact stated while driving 40 MPH, the check engine warning light illuminated. The vehicle was taken to an independent mechanic, where it was diagnosed and determined that the ECM had failed. The mechanic reset the check engine warning light, and an unknown repair was performed; however, the failure recurred once. The vehicle was not repaired. The contact related the failure to an unknown recall. The manufacturer was not notified of the failure. The failure mileage was approximately 100,000.

The contact owns a 2022 GMC Yukon. The contact stated that while attempting to start the vehicle, the engine failed to crank or start-up. After several attempts, the vehicle failed to start. The check engine warning light was illuminated. The vehicle was towed to the dealer, where it was diagnosed that the fuel pump power control module had failed and needed to replaced. The vehicle was repaired. The manufacturer was not made aware of the failure. The failure mileage was unknown.

Transmission malfunctioned 4 separate times. Engine and service transmission light came on. Vehicle shifted hard and became immobile at certain times. 4 tropes to a dealer for repair. Latest repair was replacing ECM and problem still persists.

The front chrome grill indicated in the recall came off while my wife and I were driving at 70 miles per hour. A big rig was passing in the on coming lane at the time. The part came off striking our front windshield almost causing a wreck and causes emotional trauma. It was a very scary experience. Our local dealer supposedly ordered the part two months or more ago from GM. They told us two days after the failure the part was still not available. I called GM who stayed the part was shipped well over a month and a half ago. Someone isn’t telling the truth. This incident should never have happened to us since it was a known safety recall. It should have been replaced.

The contact owns a 2021 GMC Yukon XL. The contact stated that while driving at an undisclosed speed, the vehicle lost motive power. No warning lights were illuminated. The vehicle was towed to a local dealer, where it was diagnosed, and determined that the engine needed to be replaced. The contact received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling); however, the part to do the recall repair was not yet available. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 66,000.

The contact owns a 2019 GMC Sierra 1500. The contact stated that the tailgate was occasionally opened unexpectedly while driving at various speeds. There was no warning light illuminated. The dealer was notified of the failure and informed the contact that the failure might be related to an unknown recall that included vehicles or model year 2021-2025. The vehicle was not diagnosed or repaired. The manufacturer was notified of the failure, but no assistance was provided. The failure mileage was approximately 123,000.

The contact owns a 2017 GMC Sierra 3500. The contact stated that while shifting from park(P) to drive(D), the engine revved, but the vehicle failed to move forward. There were no warning lights illuminated. The vehicle was towed to a certified mechanic, who determined that the vehicle needed to be diagnosed by a dealer. The mechanic was able to shift the transmission into manual drive mode, allowing the contact to drive the vehicle to the residence. The dealer was contacted and informed the contact that the VIN was not under recall. The vehicle was not repaired. The manufacturer was informed of the failure and referred the contact back to the dealer for assistance. The failure mileage was approximately 120,000.

The contact owns a 2022 GMC Terrain. The contact stated while driving approximately 25 MPH, the vehicle stalled, and the contact was unable to pull over to the side of the road. The contact stated that the message "Battery Critically Low" was initially displayed, and then the message "Engine and Transmission System - Schedule Service Now" was displayed. The contact was assisted by Police Officers in redirecting traffic away from the vehicle to prevent a crash. The contact stated that the tow truck driver inspected the battery and informed the contact that the battery was in good condition. The contact stated that the vehicle failed to shift to neutral(N), which required a special tow truck to tow the vehicle. The vehicle was towed to the residence and was then towed to the dealer the same day. The vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 18,200.