GMC Complaints

The contact owns a 2024 GMC Sierra 1500. The contact stated while reversing in a rural area, the back-over prevention camera failed to display an image. The vehicle was taken to the local dealer who stated the vehicle was operating as designed. The vehicle was not repaired. The contact independently added lights to the rear of the vehicle however, the failure persisted. The contact referenced NHTSA Campaign Number: 22V709000 (Back Over Prevention) as a possible solution however, the VIN was not included in the recall. The manufacturer was notified of the failure and explained that the supplier was changed in 2023 and the camera was operating as designed. The failure mileage was approximately 12,000.

My 2019 GMC Acacia SLT would not go into park to allow me to shut off my vehicle. It ran for over an hour before it finally went into park. This was dangerous as I had a young child to pick up in a busy part of town and I had to leave it running to try to get help. With a 3 year old child this was crazy. This is not the first time it has done this. My car had a recall and whomever fixed it didn’t do it. I feel this needs to be fixed properly now.

The contact owns a 2022 GMC Sierra 1500. The contact stated while driving 70 MPH, the vehicle lost power. There were no warning lights illuminated. The vehicle was towed to the local dealer but was not diagnosed or repaired. The manufacturer was contacted and opened a case. The failure mileage was approximately 14,000.

Complete loss of power steering and traction control while driving. Very difficult to make turns. Would have to pull off the road and restart vehicle to fix problem. I have not taken it to a service center. It has not been inspected. Warning lights for loss of stabilitrak do come on.

Service brake assist light comes on and Vehicle loses braking power. Brake pedal gets hard and unable to stop if needed and has potential of injury / accidental death. This similar problem has been recalled in the larger trucks /SUVs due to safety issues. It appears it's also happening in the smaller truck's canyon and Colorado's as well, however no recalls. Many blogs online discussing the issues and failures of the braking system.

The 'active fuel management/displacement on demand' lifters failed and caused the engine to run very poorly with a significant lack of power. This occurred while driving and could have caused a crash before I was able to get off the road and out of the way of traffic. The problem was diagnosed and confirmed by an independent repair shop. The vehicle had to have the camshaft and all valve lifters replaced, as well as several valves that were damaged in the failure. The total cost to repair was just over $9000. The failure also caused the catalytic converters to become clogged, resulting in even further loss of power from the engine. There were no warning lamps or symptoms prior to the failure. It occurred suddenly as I was driving down the road. Searching online reveals this seems to be a common problem with GM 5.3 and 6.2l engines from 2010 onward. GM is aware of the issues and refuses to assist in any way. Their only response is that the vehicle is "Out of warranty". The failure is caused by a design defect in the AFM/DOD system that starves the lifters of oil, resulting in lifter failure and damage to the camshaft and valves.

While driving the entire dash cluster (speed,rpm etc) turns off entirely, reloads as if truck is just starting with all lights coming off and on, needles cycling max/min. Unable to recreate on command, multiple others reported same issue with no cause/cure listed.

Diagnosis - rear floor boards and trunk well full of water. Diagnose and report - Founds traces of water running down rear pillars, starting just under the taillights. Remove rear taillights and found access hole tape failed, allowing water to enter vehicle.

The contact owns a 2015 GMC Acadia. The contact received notification of NHTSA Campaign Number: 23V334000 (Air Bags) however, the part to do the recall repair was not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The dealer was made aware of the issue and confirmed that parts were not yet available. The manufacturer was made aware of the issue and confirmed that parts were not yet available. The contact had not experienced a failure. VIN tool confirms parts not available.

The contact owns a 2008 GMC Acadia. The contact stated that the battery had previously been replaced; however, the battery failed to retain a charge. The contact had to recharge the battery every day to start the vehicle. The vehicle was taken to an independent mechanic, who diagnosed that water had leaked from the windshield and cowl to behind the glovebox, causing the battery to fail; however, no repair was recommended. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 160,000.