GMC Complaints

My vehicle was part of the GM Engine recall. Took it to dealer to see if the vehicle passed, it did. Now, engine has 0w40 oil in it about 1,000 miles later, just at 50,000 miles the truck had a catastrophic engine failure.

There have been several issues for which I had to take my vehicle to the dealer. I did the engine oil recall. Then 4 months later my engine was destroyed. I’ve had several issues with oil leaks. I had an issue with my running boards a few times. And I’ve had an ongoing issue that the dealer hasn’t been able to fix - a water leak (I believe stemming from the moonroof), water gets into my vehicle, on my floorboard, and behind the dash. I’ve called to record these incidents with the dealer and taken it in several times, but they are never able to duplicate it, but they have witnessed the water leakage after the incidents (which happens during heavy downpours, and isn’t all the time because my vehicle is in the garage when I’m not at work).

2026 GMC Sierra Elevation X31 with 3.0 Duramax Diesel engine, 132-miles, thrust bearing 1.53-mm out of tolerance requiring engine and turbo replacement. Engine build date 25219 (07 AUG 2025), vehicle assembly date August 2025, purchased 10 OCT 2025, entered service for engine and turbo failure on 11 NOV 2025, returned 10 JAN 2026.

Vehicle had already "passed" the GM testing and received 0W-40 synthetic engine oil. Engine failure. Vehicle is currently at the dealership. This event put my family at risk of serious injury and possible death as the vehicle suddenly stopped working while drive on a bust street. Engine failure has been confirmed by the dealership, who have recommended installation of a new engine. There were no warning lamps on the dash at the time of the event. However, there was a loud noise immediately followed by lose of engine power.

We received a notification that our 2023 GMG Yukon Denali Ultimate engine needed to be tested as a part of a recall. We took the vehicle to our local GMC dealership. The engine was tested and determined to "pass". The "pass", we were told, meant that we did not need a new engine, just thicker oil, and that the engine was safe. Mind you, our car was a custom order, took 8 months to receive, and is not even 3 years old. The vehicle is my everyday driver. I have two kids and live in a large city with a lot of traffic. A few months after it was determined to "pass", I was driving with my kids and dog in the car. The abruptly stopped, putting itself in neutral. Luckily, I had just turned off of a major interstate and onto a side road. The car would not start or move out of neutral leaving me and my kids in the middle of the road. It now needs a new engine. Prior to this issue, the battery died a few weeks after we took delivery of the vehicle. SAFETY!!!! If this happened just a few minutes prior, I would have been on a major interstate in one of the nation's worst traffic cities. My car would have abruptly shut down absolutely risking other cars hitting my car. All of this could have been avoided if GMC recalled AND REPLACED all impacted engines. The GMC service tech admitted that they (GMC) knew it was a "band-aid" that wouldn't work. GMC is putting lives at risk. In addition, we now have a vehicle we paid more than $150k for that is virtually worthless.

My vehicle failed the Picotest that GM is conducting on the engine. It is currently sitting at Romain GMC in Evansville Indiana. I am not sure if I was at risk but the dealership says it's unsafe to drive so my assumption is that my safety was at risk. The dealership states that it will take 3 months before a new engine is installed. There were no symptoms leading up to this recall inspection.

The contact owns a 2016 GMC Canyon. The contact stated that while driving at various speeds, the power steering feature suddenly malfunctioned, causing the steering wheel to become difficult to turn in either direction. After the failure occurred, the traction control warning light illuminated. The vehicle was taken to the local mechanic, who diagnosed that the steering column was faulty and needed to be replaced. The steering column was replaced, and the vehicle was repaired. The contact stated that the manufacturer was aware of the failure involving the steering column on similar vehicles, but had not issued a recall for the failure. The failure mileage was 150,000.

My vehicle has experienced total engine failure. The first time occurred in 2024. The dealership replaced the engine with a new one. It has now failed for the second time. This time I nearly crashed as the vehicle went from 65mph to 0mph in 5 seconds. There was no warning and my vehicle is serviced regularly by the dealer I bought it from. The dealer has not yet responded with how they will resolve this issue.

2024 gmc engine 6.2 that failed had the recall test done and a couple of mounts later engine started making loud knocking sound its at the shop now getting a new engine in been at the shop for about 3 weeks now

The radio dead out randomly. Which means the back up camera is non working. I wasn’t able to see a stump and hit it. Doesn’t seem safe. Like what would has happened if it was a person instead and they like the stump was in my blind spot while backing up. I feel like this is a safety issue. I have looked it up online and found out this is a common issue with these vehicles.