GMC Complaints

The back up camera failed at 36200 miles and the dealer will not fix. I see there was a recall on 2021 models due to bad cable.

Lift gate closes by itself I have to put a pole to hold it up and it won’t hit me, it says the air bags needs to be serviced, stabilitrak keeps going off, ball bearing needs work. Radio won’t turn on no sound on air signals, the body chasis something popped while driving, the tracking control keeps turning off, the seats move while driving, catalytic converter are moving car only go 12 mpg.

The contact owns a 2014 GMC Acadia. The contact received notification of NHTSA Campaign Number: 23V334000 (Air Bags); however, the part to do the recall repair was unavailable. The dealer was contacted; however, the contact was informed that parts were on back order. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had not experienced a failure. Parts distribution disconnect.

On Monday 5/26/2025 I was on the way home from work, coming down my street to turn in my drive (at approximately 2130) I pushed on the brake getting ready to make my turn, my car would not stop. It traveled maybe 100 -200 feet before coming to a stop. The brake pedal would not push in. (As I live on a cul-de-sac, if this happened during the daylight, there would have been children playing in the street and I could have killed someone's child). I managed very slowly to reverse the car and finally get it in the driveway. I thought it was going to hit my house!! Upon reading a lot of issues and complaints on my vehicle make/model I pretty much figured it was the brake vacuum pump. I called GM, however my car has 74,000 miles, is out of warranty and no recalls for my VIN so I'm told I have to have it fixed. My neighbor is a certified mechanic and has a shop. He looked at it and confirmed it is the vac pump. Not only that but the end that goes into the motor has sheared off and not there is metal pieces and fragments in my motor. I had to have it towed to his shop. (this morning) As of right now I am waiting to see if the motor can be flushed or if I am going to end up having to replace motor. I have missed several days of work due to transportation and now have to rent a car, and pay who knows how much for repairs which could easily cost thousands. I live week to week and still make payments on this car!! This is a faulty part and should have been a recall as I have read on many many complaints of bad brake vacuum pump on the GMC Terrains even the 2020 models and up. Some of the others are already recalled but not mine. In the photos, on one you can see the big chunk of metal. On another where the piece came of of motor you can see where metal was scraping the camshaft in the motor and very small metal fragments around the opening

The truck ever since of bought it has been nothing but issues. Starting with the fuel pump issues then electrical issues and most recently the coolant flow control valve. This is my work truck and now I’m out of a truck with no loaner and the dealership has no eta.

Manufacturer Recall Number N252494003 NHTSA Recall Number25V274 Recall Status Recall Incomplete, remedy not yet available Summary General Motors has decided that a defect which relates to motor vehicle safety of 2024 model year GMC Sierra 1500, equipped with the 6.2L V8 gas engine (RPO L87). The connecting rod and/or crankshaft engine components in these vehicles have manufacturing defects that can lead to engine damage and engine failure. Safety Risk When the engine fails during vehicle operation, the vehicle will lose propulsion, increasing the risk of a crash. GM HAS YET TO CORRECT THIS SAFETY ISSUE WITH MY GMC SIERRA. THEY HAVE FAILED TO CORRECT IN A TIMELY MANNER.

Friday, May23,2025, 5:00 pm Driving on interstate at 65mph, entering work zone as 3 lanes merged into 2. The vehicle slowing down to allow traffic to merge. Dash display said push start button again, no engine rpms, Pushed start button, nothing happened. The vehicle came to a complete stop. pushed button several times, attempted to shift vehicle into park and or neutral, Did not no what gear I was in. Dash display said not conducive to shifting at this time. After several attempts to restart truck, it did start. Put it in drive, accelerated past 65mph. vehicle died immediately. able to change lanes while coasting and got off highway. Never restarted, transmission locked and parking brake locked. Tow operator called, dragged onto flatbed, no wheels turning. Towed to Dealer. Potential for accident was very high, the vehicle had 4 passengers including a child. No warning what was about to happen an no clue what to do. Pre Memorial Day traffic including work traffic in construction zone. Is still under original manufacturer's warranty with a little over 11,000 miles . Dealer confirmed the Tuesday. May 27, 2025 the engine failure and contacted GM regarding the recall.

GMC has failed to offer a solution to this major engine defect. In talking to two dealerships they are unable to perform any tests at this time that would in fact identify the engine as defective. We hear a knocking lifter but GMC has not acted in a timely manner I called the GMC line (Reggie) and was told there is no remedy and no known information as to when a remedy will be available. I even told one dealership that GMC had backed out of changing the oil viscosity because it had made problems worse.

The contact owned a 2016 GMC Acadia. The contact stated that when she had placed the vehicle in reverse (R), and was applying the accelerator pedal, all of the air bags deployed. The contact stated that she lost control of the vehicle and crashed into her neighbor's house. The contact stated that she was rendered unconscious. The contact stated that when she recovered consciousness the police were on scene and issued her a traffic citation. The contact stated that no emergency medical personnel were called to the scene of the accident. The contact stated that she had not gone to a doctor, but she had pain in her back and had bruises on both legs and feet. The contact stated that the vehicle had been towed to an impound lot. The contact stated that she had called here insurance provider who had declared the vehicle a total loss. The manufacturer was not made aware of the failure. The contact stated that she had received notification of NHTSA Campaign Number: 23V334000 (Air Bags) and related the failure to the recall. The failure mileage was approximately 130,000.

The contact owns a 2021 GMC Acadia. The contact stated that after a routine maintenance at the local dealer, it was noticed that the radiator was leaking coolant. Upon further inspection, the contact and his son noticed that the driver’s side of the radiator was corroded. No warning light was illuminated. The vehicle was not repaired due to the cost. The manufacturer was made aware of the failure. The failure mileage was approximately 32,175.