GMC Complaints

High pressure fuel pump regulator failed and cause gas leaking, reduced engine power and gas smell coming back in vehicle. It was also blowing out white smoke. It had delayed ignition starting. The engine light did come on. Several makes and models of GMC has had recalls for this problem. The 2017 GMC Yukon was not included for this recall and should have been.

The contact's wife owns a 2024 GMC Yukon. The contact stated that while driving at 80 MPH, several warning lights flashed on the instrument panel as the engine shut off. The vehicle's speed abruptly decelerated as the contact was nearly hit by an 18-wheeler traveling close behind the vehicle. The contact managed to coast the vehicle as best as possible off to the shoulder of the highway. The vehicle was towed to a dealer and a diagnostic was performed which showed that the engine had failed. The contact stated that both he and his son suffered emotional trauma as a result of the sudden failure; however, neither has yet to seek medical treatment. The manufacturer was notified of the failure and the contact was offered a new engine despite the contact's request for a vehicle buyback. The contact stated that he did not feel safe driving the vehicle and feared for both his and his family's life as a result of the failure. The vehicle remained in the possession of the dealer and was not repaired. The failure mileage was approximately 22,000. The VIN was not available.

The contact owns a 2022 GMC Yukon XL. The contact stated while the vehicle was idling, there was an abnormal ticking sound coming from the engine. The contact stated while driving 20 MPH and exiting the highway, the abnormal sound turned into a screeching, grinding, and squealing sound, and the vehicle lost motive power. The contact was able to pull over to the side of the road. The vehicle failed to restart and was towed to the dealer, where it was diagnosed and determined that the engine had failed, and there were metal shavings in the oil. The dealer determined that the engine needed to be replaced. The vehicle was not repaired. The contact related to the failure was to NHTSA Action Number: PE25001 (Engine, Engine and Engine Cooling). The manufacturer was not notified of the failure. The failure mileage was approximately 60,990.

Faulty vaccuum pump blew leading to engine failure. On the highway randomly, with my child in the vehicle. This almost caused a huge accident. I’ve kept up on all maintence and oil changes. This has been a huge effect on my life as I’m a single parent and randomly had to spend thousands on a new engine for zero fault of my own. I’ve read many many people having this issue. Something needs to be done and action needs to be taken!!!!!!!!

Engine stopped and vehicle went into neutral. Family of 5 in the vehicle on a busy highway. Once pulled over safely from the highway and shut off ignition, the vehicle stayed in park and would not shift to neutral, the engine would not restart. Vehicle had to be towed into the GMC dealer. No warnings, messages or symptoms prior to the failure. The vehicle was just at the dealer for routine maintenance 4 days prior. Dealership found that the engine had seized.

The contact owns a 2020 GMC Sierra 1500. The contact stated while accelerating from a complete stop, the vehicle lunged forward. The contact stated that the failure recurred while driving at various speeds depressing the accelerator pedal, and while decelerating to come to a complete stop. The check engine warning light was illuminated. Additionally, the contact stated that while coming to a complete stop at a traffic light, the vehicle lunged forward violently, as if the vehicle had been rear-ended. The vehicle was taken to Quality Plus Automotive, where it was diagnosed that the transmission had failed and needed to be replaced. The local dealer, Leith GMC (919) 366-1000), and other dealers were contacted and informed the contact that an estimate for the repair could not be provided because the transmission part was not available. The vehicle was repaired by Quality Plus Automotive. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 75,450.

DEF tank heater, diesel exhaust fluid heater has failed which causes the truck to go into a reduced speed until fixed. GM has no parts to fix the issue! at my dealer. Currently there is three or four trucks waiting on the exact same part, it puts the truck into reduced power and speed until part is replaced

The contact owns a 2022 GMC Sierra 1500. The contact stated that the vehicle failed to immediately start with the message "Battery and Key fob" failure displayed. The battery and key fob were replaced; however, but the failure persisted. The vehicle was taken to the local dealer who diagnosed that the engine was faulty and needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure. The failure mileage was 36,000. The VIN was not available.

Tailgate opened/unlocked while parked during rain and light snow. The tonneau cover disguised that the tailgate was open (held it up just enough so it was not visable). The tailgate fell open while driving but went unnoticed. Several large and expensive items were lost out of the back of the truck which is used as a work truck for electrical services. This has happened twice on the roads. Now the tailgate is physically checked before driving to ensure it will not fall open. The incident was mentioned to the local GM dealer but we were told our model was not part of the recall. Our next call will be to GM directly to try to remedy the problem and hopefully recoup the items lost.

The contact owns a 2023 GMC Yukon. The contact stated that while driving at an undisclosed speed, the vehicle inadvertently lost motive power. The contact pulled over to the shoulder of the roadway, where the vehicle was able to be restarted. The contact became aware that the vehicle had entered LIMP Mode. No warning lights were illuminated. The vehicle was taken to the dealer, who was unable duplicate the failure. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 44,000.