GMC Complaints

The contact owns a 2019 GMC Acadia. The contact stated that upon shifting to park(P), the vehicle made an abnormal beeping sound that persisted after turning off the vehicle. The message "Shift to Park" was displayed. The vehicle was taken to the dealer, where an unknown harness and switch were replaced. The vehicle was repaired. The manufacturer was notified of the failure and informed the contact that the VIN was not included in a related recall. The manufacturer referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 39,886.

On [XXX] while driving my 2021 GMC Yukon Denali to work, the vehicle suddenly lost power without warning. I had it towed to the dealership, where I was informed that the fuse pack needed replacement. Less than 36 hours after getting my vehicle back, I experienced another critical failure—while driving, the traction control light and check engine light came on, and the engine began making a loud clacking noise. Upon returning it to the dealership, I was told that the vehicle required a complete engine replacement. Prior to this incident, my Yukon had no known mechanical issues. However, despite the vehicle being only three years old and under GMC’s 5-year/60,000-mile PowerTrain warranty, the failure occurred at 65,722 miles—just over the coverage limit. GMC has acknowledged nearly 900,000 reported issues related to this engine defect, yet instead of issuing a full recall, I was only offered 60% coverage, leaving me with over $5,000 in out-of-pocket costs for an issue that is clearly a widespread manufacturing defect. I purchased this vehicle for its reputation of reliability and safety, especially as the primary mode of transportation for my family of five, with no nearby relatives to rely on. Given the known defects, it is unacceptable that GMC has failed to take full responsibility. I am formally requesting that GMC cover the full cost of the engine replacement and issue a recall to prevent other consumers from experiencing the same failure. [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Tailgate opened on highway with cargo in bed. Also tailgate opens randomly when parked. This has happened many times, creating very dangerous and unexpected situations Numerous contacts to the manufacturer have been unsuccessful in getting the hazard placed on recall. Numerous incidents. Keeps happening

The contact owns a 2019 GMC Acadia. The contact stated that while attempting to shift to park(P), the message to “Shift to Park” was displayed. The contact shifted from park to neutral and back to park until the proper gear was recognized. The local dealer was contacted, but the vehicle was not diagnosed or repaired. The contact was informed that the VIN was not under recall. The manufacturer was not notified of the failure. The approximate failure mileage was 72,000.

Traveling at 65 MPH on highway when electronic dash went completely blank, audio on car stopped as did the engine! Steering of vehicle remained in tact so I was fortunate to be able to "coast" to the side of the highway. GMC Dealer has confirmed a total engine failure and stated they will need to replace the entire engine. There were no prior warnings, symptoms or problems with my vehicle prior to this incident.

Vehicle was having trouble accelerating, like the parking brake was on. Then received a message that the brake system failed, lane assist failed, and I couldn’t drive faster than 43 mph. Then a message about the trailer brake appeared

I have a 2007 GMC Yukon. This car has been converted from the inside into a small limousine. Bench to bench with drinks bar in the middle. I would like to ask you, if I give you the chassis number, can you check if this car was converted at your factory? Can I receive a letter from you documenting this change? Attached are pictures of the car

accelerating from a stop, 1st and 2nd gear hard shifts. gm previously changed program and type of fluid. said this was normal

motor locked up while driving on highway to vacation, when i tried to get warranty at a nearby dealership i was told engine was on back order with no release and the only option i had was to purchase a new vehicle . vehicle was under a year old with very low mileage on it.

Engine blown traveling at 35mph vehicle is currently at Lake Chevy GMC in Lewistown Pennsylvania awaiting a new engine, dealer is warrantying engine (so far) awaiting new engine dealer said it will be several weeks before receiving the replacement engine. I’m aware there’s an ongoing investigation.. Thought I’d add my vehicle to the list of engines failures during normal operation.. Vehicle has 43,XXX miles completed its first tire change the day before.