2023 GMC Terrain — Problems & Complaints

My vehicle continues to slip and jerk out of gear , brought in to a local Chevy dealership , they test drive the vehicle and Acknowledge the issue. They updated transmission software and give it back to me to drive for 1000 miles or 30 days and see if the problem continues. Problem gets worse slipping and jerking more and more , made appointment dealership cancels my appointme…

The contact owns a 2023 GMC Terrain. The contact stated that while driving 70-71 MPH, the vehicle suddenly decelerated. There was a red flashing light illuminated. The contact stated that the vehicle then accelerated. Additionally, while driving at an undisclosed speed, the vehicle decelerated, and the message that the sensor was dirty was displayed. The contact stated that th…

GMC Terrain with 12,564 total miles had experienced an engine failure. Under normal driving conditions, the car was sluggish and would not accelerate properly when pulling out into traffic or when getting on the freeway/interstate causing fear for driver safety and causing traffic slowdowns or congestion with a significantly increased risk of crash. While driving to work, the …

The problem with this car that continues is that when driving over 65 miles per hour/ more or less, the driver side door rattles and shakes. It rattle and it looks like if the door wants to detach. It only happens on the driver side, not the passenger side. I put my arm on the arm rest, and my arm shakes and that is not ok. I am concern and want to know what can be done ab…

My 2023 GMC Terrain has experienced two separate incidents of complete loss of motive power/engine propulsion while being driven. The vehicle suddenly loses the ability to accelerate and maintain normal propulsion, creating a serious safety risk in traffic. The first occurrence was on August 8, 2026. The vehicle was subsequently diagnosed and repaired by an authorized Chevrole…