GMC Complaints

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 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.

After 80K miles on a 2017 GMC Sierra - my 6 Speed AT Transmission HMD 6L-80 failed. There appears to be know flaws in the GMC transmission, but no recall for my model and year.

Rear shock holder rusted through cross member on frame making top of shock stay forced against bottom of the bed of the truck.

The contact owns a 2017 GMC Acadia. The contact stated while driving 65 MPH, the steering warning light illuminated. The contact stated that when she arrived at her destination, she became aware that the engine fan was blowing abnormally loud. The vehicle was taken to an independent mechanic. The vehicle was diagnosed with a failed thermostat and thermostat sensor. The contact was informed that the thermostat and thermostat sensor needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure and advised the contact to report the failure to the NHTSA Hotline. The failure mileage was approximately 94,000.

The contact owns a 2017 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 local dealer was contacted and confirmed that parts were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact had not experienced a failure. VIN tool confirms parts not available.

My car wouldn’t start, later found out it was due to timing chain issue which ended up blowing up my engine. I live 40 minutes from work and am consistently driving on the interstate for at least an hour a day. GM said there’s nothing they can do even though there’s been class action lawsuits for the engine. My car has also had oil consumption problems. I bought my car in March of 2022. The engine blew up by November 2022. I barely got my car back in September 2023. After the engine replacement, still wouldn’t turn on, over heated immediately when I did get it back. After paying $7440 for the engine replacement I had to fork over snother $650 to replace the fuel pump control module, and an engine control unit. My car overheated AGAIN just 2 weeks ago!!!!

"shift to park" warning message. Unable to shut vehicle off or leave vehicle. Shifter is in the Park position but vehicle does not recognize it is in Park and will not shut off. Vehicle has never been in an accident. No residual code. Dealer will assess but not covered under any existing warranty or recall. Out of pocket expense. TSB 18-NA-297; replaced by 19-NA-206.

On October 13, 2023, I was driving on the highway when my 2014 GMC Terrain power was reduced. Suddenly, the engine light came on and car began throttling. Second, an error message appeared on my dashboard indicating “ engine power is reduced.” Then it stopped in the middle of the highway. I was able to restart my vehicle and drove it to a nearby mechanic shop. The mechanic said the problem was my timing chain and that my vehicle was not drivable. I left my vehicle at the mechanic shop because it was the weekend and It needed it to be towed to the dealership. On Monday, October 16, 2023, I had my vehicle towed to Buick Classic Service Center. After waiting for two days, I received a call from the service center stating that my 2014 GMC Terrain timing chain and pressure gas pump was the cause of the problem - with my vehicle. After, reading other owners similar complaints ; why is there not a recall to address this problem? Now, I am stuck without a vehicle and the company has no idea how long it will take to get the parts needed to fix my vehicle. I was told that the timing chain and a tension is on back order due to the employees of GMC being are on strike.

This is a 2016 GMC all wheel Terrain. Over the past several years when accelerating the car would shake violently, because we could not reenact dealership could not diagnose the problem ,however as the issue has gotten worse we have been able to recreate and diagnose AND we are looking at a $2,000 repair based on a known ISSUE which DID NOT lead to a recall. The ACTUAL ENGINE IN ITS ENTIRETY SHAKES VIOLENTLY when accelerating!! How in the hell is this possible that these cars are allowed on the street without a recall. You should be ashamed!

On 9/20/23 my truck suffered a brake failure in which one of the front calipers ruptured and there was a complete loss of braking. The brakes were repaired the following day and an "ABS" light remained on after the brakes were repaired and the brake lines were bled. The vehicle codes were checked and a "C0110_04 Pump motor circuit open" fault was detected. It should be noted that even though the brake system was bled and and part were replaced, there were no brakes and the vehicle could not be driven. I had the vehicle towed to Rossi GMC in Washington, NJ and they diagnosed the problem as a bad Electronic Brake Control Module and Motor. Then I was advised by their service department that no parts were available because of the General Motors strike and there was no date as to when the parts would be available. I asked if I could try to locate the parts myself and they agreed as long as they were genuine GM parts. After calling hundreds of GM/Chevy dealers I was able to locate one (1) EBCM at All American Chevrolet/Cadillac in Muncie, IN. After speaking with their parts department, they advised me that they have the part and they won't sell it to me over the phone, only in person. I live over 9 hours away from the dealer and this was not feasible. My complaint is this, although the ABS system in my truck was not functioning properly should the regular brake system still be working? If so, why is mine not. This is a HUGE safety concern considering if the ABS system were to fail at highway speeds this could cause a bad crash.