GMC Complaints

The contact owns a 2022 GMC Sierra 1500. The contact received notification of NHTSA Campaign Number: 25V274000 (Engine and Engine Cooling). The contact stated that there was an abnormal grinding and clinking sound coming from the vehicle. There were no warning lights illuminated. The contact called the local dealer and was informed that there was a waiting list for the recall repair. The vehicle was not diagnosed or repaired. The App had alerted the contact to the recall. The manufacturer was not notified of the issue. The failure mileage was approximately 41,216.

Took truck in to have brake light checked to prepare for a trip. Got a call the next day from auto service center that the frame off the truck is completely rusted and that it was unable to be lifted up for service. They stated that the vehicle was unsafe to drive and that any hard bump, speed bump or over correction could cause the frame to fall out.

Took the car to the dealer after getting alert from my GMC app saying it needed emission serviced, engine light came on, antilock brakes needing serviced. The dealership said that the engine is blown at just over 71200 miles. This car has only had service done at the dealership except for a tire change.

While traveling on the interstate at 10:30p, 6 hours into a highway trip, the vehicle shuttered violently and lost propulsion and powered systems control. We were traveling at 75 mph on cruise control and immediately had to take evasive action to avoid other vehicles traveling at highway speed as our vehicle rapidly decelerated to a stop. We were barely able to get to the shoulder of the highway before the vehicle came to a complete stop and all dashboard lights illuminated. There was no warning or indication of immanent failure or engine issue. The catastrophic engine failure did not allow for the attempted restart. After opening the engine bay we noted that the coolant reservoir was empty but there was no indication of any leaking fluid in the engine bay or on the ground. The coolant levels were normal at the trip start. We were stranded on the side of the busy interstate for approximately 2 hours awaiting OnStar assistance and were forced to exit the vehicle due to its proximity to the edge of an active lane, leaving us exposed and without any protection for 2 hours, in the middle of the night, until assistance arrived. It was a harrowing experience and we are lucky that we were not injured or killed. The vehicle could not be disengaged from park and had to be dragged onto the flatbed. It was taken to the local GMC dealership and left for diagnosis. It was determined that the #2 piston rod broke, smashed valves and sent metal into all engine systems. Bothe the engine and coolant system were replaced. In addition, the torque converter locked up and had to be removed during servicing. All parts were retained by GM.

The contact owns a 2014 GMC Acadia. The contact stated that while at a stop, the vehicle experienced a loss of automotive power. In addition, the contact stated that upon further inspection, the fuel gauge failed to properly display the fuel level. No warning light was illuminated. The vehicle was towed to a local independent mechanic, where the unknown repairs were made; however, the traction control, ABS, Stabili-trak, and seat belt warning lights illuminated. The local dealer was not contacted. The vehicle was not diagnosed or repaired. In addition, the contact related the failure to NHTSA Campaign: 14V614000 (Electrical System), 14V266000 (Seat Belts), 21V246000 (Air Bags), and 14V223000 (Electrical System, Fuel System, Gasoline); however, the VIN was not included. The manufacturer was made aware of the failure. The failure mileage was approximately 130,000.

While driving, error popped up stating steering assist is reduced; drive with caution. Heat was no longer working. Engine temp was reading cold even though vehicle had been running for half hour and temp outside was 65 F. After vehicle was stopped, engine fan ran very loudly for at least 15 minutes. Took vehicle in to have diagnostics ran, and received error P0128 pointing to faulty engine coolant thermostat and sensor. Also received U0401 indicating insufficient data coming from ECM/PCM. I was told that together with U0401 and P0128 together indicate a communication problem between control modules. Check engine light was never on.

At random the power steering and traction control turn off making it difficult to drive.. This happens randomly and has become unable to steer. Once the vehicle is turned off for a period of time you can start it up and the steering returns. The issue was reported in the 2015 models. That recall needs to extend into the 2016 models since most of the parts were most likely manufactured tot eh same specs as the 2015. The vehicle was diagnosed by an independent repair shop. The dealership wanted $200 for just the diagnostics. Every time this happens it becomes very difficult to drive and is a safety issue. The issue first appeared 2 months ago and after the restart stopped. Then all of a sudden it seems to occur daily.

For the past 2 years I have been having a problem with the Shift to Park. It causes my vehicle to not turn completely off therefore draining the battery completely, I have gone through several new batteries because of this issue and has left me stranded needing to uber to purchase a new battery. Recently it started causing issues with my vehicles Antilock braking system and the stability control system although I don't know if they are all related but it is causing a hazard to drive around and it it the only vehicle I own.

My vehicle started making a knocking sound and eventually died on me. I barely made it to a repair shop to check out my vehicle, but had to get it towed back to my home from the repair shop after they told me my engine failed. This happened around 118,000 mileage. I found out that this issue is very common and needs to be addressed for this year and model vehicle. It could have ended very badly for me as I was on the interstate when it happened. Now, my vehicle is sitting and I am unable to use it. Engine would cost me over $12k for cost and repairs.

After having transmission issues which was replaced under warranty, within 300 miles, the engine failed. The vehicle has now been sitting at the dealership since October 7, 2025 waiting for a replacement engine. There is no timeline available for the replacement engine as they are currently backordered. Absolutely ridiculous.