2023 GMC Sierra 1500 owner complaints
506 complaints filed with NHTSA, including 5 crashes, 2 fires, 2 injuries and 0 deaths.
Problems by component
Engine and Engine Cooling23 Forward Collision Avoidance14 Recent complaints
October 29, 2026Fuel/Propulsion System
On [XXX], at around [XXX] my 2023 GMC Sierra 1500 Elevation suddenly lost power while I was driving eastbound on [XXX]. The battery was still running, but the engine lost power and the accelerator did not respond and the truck would not move. I was stranded in the roadway. OnStar emailed me about a critical vehicle issue and reported DTC P129F. Because the truck was stopped in a live lane of traffic, I called 911. Responders blocked part of the road to protect me and to give the tow truck room to recover the vehicle. No one was injured, but this could easily have caused a serious collision. A few days later, I had the truck towed to Seaview GMC in Lynnwood, WA. The dealer diagnosed an intern
October 29, 2026Engine
My 6.2 motor in my 2023 GMC AT4 truck has blown up. As part of the recall that GM has on this motor it passed the "pico test" at around 50k miles or so ( I can provide the paperwork) and then this past week with 63k miles or so the engine developed a miss and eventually by the time I got it to the dealer there was a significant "engine knock". The service center called the next day and said there was definitely a engine failure and I was lucky to have made it to the dealer. The vehicle is at the dealer waiting on a new engine. I was quoted 2 weeks but we are passing that time frame now. GM needs to be held accountable for this mess.
October 29, 2026Carry Handle, Shell, BaseInsert, Padding
the styrofoam part on the side rest area, is broken .. When cleaning and setting back together, shouldn’t be a problem. Wish it was a different material, since my baby needs to be protected from that. Also putting it in the car, we all touch that part and it’s not so sturdy. When we hit the brake, we held it for extra security and noticed it broke when we got home, and i unassmebled it to check.
October 28, 2026Unknown or Other
I a filing a safety complaint regarding my 2023 GMC Sierra1500. While, driving, the front hood shield/trim piece unexpectedly detached from my truck and flew off into traffic. This occurred on a freeway and could have caused a serious Collison. This is a hazard that this could detach without warning. I believe it is defective. Other models have had a recall on this part and I believe this model should as well
October 28, 2026Engine
My truck's engine failed in April 2026 and was replaced. Approximately 7,000 miles later, the replacement engine failed as well. After bringing the vehicle to the dealership for another engine replacement, the newly installed engine seized during the dealer's test drive before the repair could even be completed. As a result, I am facing additional delays and have been without a reliable vehicle for an extended period.