2021 GMC YUKON Complaints

The vehicle was not starting and after 3 attempts it started, but a strong smell like gasoline came inside the car, and as I checked, fuel was running all the way to the ground. Major hazard! The vehicle was taken to the dealership and diagnosed with a leak in the High-Pressure Fuel Pump. According to the service advisor NOT COVERED under powerterain warranty. The part just went bad, and needs to be replaced. However, the vehicle has been in the service department since July 3 (Now it is July 18) and the part is in back order and no news as of when my vehicle will be fixed. My vehicle is a 2021 and I do not understand how a part is not available, or discontinued (according to parts department). I need my vehicle fixed!

Vehicle without any warning quit running, had to be towed, 19,400 miles on vehicle. could have had a wreck since I was on a heavily traveled 4 lane highway. Dealer Heyward Allen in Athens Ga. determined that it was the fuel pump and is on national backorder. This would tell me that there are other vehicles with this issue. There was another recall for these types of vehicles that could have also included this one N212332040. GMC could not answer why my vehicle was not included in the recall. GMC has of today done nothing about this issue except to say that the NHTSA issued recalls and they did not. Would not even take responsibility for manufacturing the part.

The contact owns a 2021 GMC Yukon. The contact stated that while driving at an undisclosed speed, the odometer was inoperable. There was an abnormal odor of fuel while starting the vehicle. The parking brake and TPMS warning lights were illuminated and flashing. The parking brake was inoperable. Additionally, the seat belts were inoperable. The contact stated that there was a cut in brake line. The vehicle was taken to the local dealer where it was diagnosed and determined that the brake master cylinder needed to be replaced. The vehicle was repaired but the failure persisted. The manufacturer was contacted but provided no additional assistance. The failure mileage was approximately 60,000.

The suv shown safety message, it was diagnosed with airbag not deployed. This is very important specially for the rear backseat. GMC doesn’t want to be responsible and makes customer pay.

My transmission had to be replaced back in December of 2021, and now I have taken my truck back to the dealership for transmission problems again, the transmission is slipping again, driving rough and now im getting a safety restraints message and the airbag picture is coming on

Car lost power while driving at high speed. Luckily was able to coast to the side of a busy controlled access highway. This was the second time for this to happen while driving, first was on a surface road driving at lower speeds. Very first instance was trouble staring the car. This all took place over a month and half. Dealer could never replacate while the had the card the first time. They are saying now that this is due to a failed Fuel Pump Power Control Module, which there has been a recall on but my VIN was not in the recall. There were no warning light that come on before or when this happened. After multiple time trying to start the car the check engine light would come on.

My family and I were on a road trip to go camping. We were approximately 30 minutes out of town when the engine blew. Lost all electronics and had to drive off to the side of the road. GM roadside would not tow it back to my dealer of choice even though it was approximately the same distance driving it to another state. The dealer in bullhead city, Arizona, installed a new engine and after 10 minutes of running, the new engine seized as well. My vehicle has been down for over 30 days and I still do not have it back. GM is having issues with the 6.2L engines and I have tried to have it repurchased by GM to no avail. What happens when we eventually get this vehicle back, the engine blows and my wife is in traffic as she uses this vehicle as a daily commuter and gets into an accident because the vehicles engine blows again?

The contact owns a 2021 GMC Yukon. The contact stated that upon the start of the vehicle, the vehicle independently reversed without warning upon touching the gear shifter. The vehicle first reversed into a cement barrier and then lunged forward into an intersection while she repeatedly depressed her brake pedal to no avail. The contact managed to call 911 and while speaking with an operator, she was able to regain control of the vehicle. The contact crashed into a parked vehicle as well as a barrier during the failure. Once the contact regained control of the vehicle, she pulled into a gas station where she was met by police. A police report was filed. The contact suffered mental anguish as a result of the failure. Due to the failure, the vehicle was towed to a dealer where they were unable to duplicate or diagnose the failure. The vehicle was then towed to an independent body shop where it remained in their possession. The manufacturer had yet to be notified of the failure. The vehicle had yet to be repaired. The failure mileage was approximately 20,000. The VIN was not available.

The vehicle had a sudden loss power shortly after i started the vehicle. When I pressed down the gas pedal, the vehicle turned off. It was only a 20 mph zoned residential neighborhood so I was able to safely coast to the side of the road. I dont think i could have safely gotten to the side of the road if it had been on any type of a multi lane road. There was no warning, no lights, no sounds that there was a problem. I had the truck towed to the local dealership as i was 120 miles from home. The mechanic at dealership said it was a faulty “fuel pump power control module“ and that they are failing a lot. Last I heard that the part was on nationwide back order. There was a recall for this very same problem over a year ago but my vehicle is not part of the recall. Yet the problems are still occurring with many similar vehicles (Tahoe / Yukon)

Large fire started at rear of car. Car was parked on driveway and no one was inside. Noticed a burning smell before fire started. Could not locate any smoke. Vehicle rear burst into flames 20 minutes later. Fire department responded quickly and was able to put out the fire before it reached the house. Vehicle is totaled. Vehicle was inspected by fire department and police after fire was extinguished. They believe the fire was electrical. Vehicle is currently being inspected by insurance company. No warning lamps or messages appeared. Rear windshield wiper stopped working 2 weeks prior to fire.