2023 GMC Terrain owner complaints
41 complaints filed with NHTSA, including 2 crashes, 1 fire, 1 injury and 0 deaths.
Problems by component
Forward Collision Avoidance2 Recent complaints
October 17, 2026Seat Belts
The driver side seat belt is hard to lock and unlock into the clip. Sometimes it will not lock into the clip.
October 1, 2026Power TrainEngineFuel/Propulsion System
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 Chevrolet dealership with General Motors involvement. After those repairs were completed and the vehicle was returned to me, the same loss-of-propulsion symptom occurred again on September 26, 2026, approximately two weeks after the vehicle was returned. The second failure occurred while I was actively driving and again resulte
September 20, 2026Fuel/Propulsion System
I purchased this vehicle two weeks ago. It was my first time driving it since I bought it home from the dealer. I was on the highway driving about 55 mph in the left lane. All of a sudden the car started to slow down on its own going down to 15 mph without knowing what was happening. I tried to ease my way to the left and was almost hit by multiple vehicles. Once I got to the left lane the vehicle stopped running. I couldn’t start it. I noticed a pool of liquid on the right side of the vehicle. I also started to detect a strong smell of gasoline. I had to get towed off the road by calling 911 for assistance. The tow truck driver also confirmed that the liquid was gasoline. I had to get the c
September 1, 2026Air Bags
Harness for the airbag gave out. Puts the passenger at risk. Confirmed by service members at Rodenroth Motors Inc. in Sault Ste Marie MI. Message said service "Restraint system". There was no official incident date. One day whenever somebody sat in the passenger side the warning would appear.
August 5, 2026Power TrainEngineForward Collision Avoidance
adaptive cruise disengaging alert on dash- no cars or weather conditions to induce this. loss of power and bucking on highway( near accident caused) catostostrophic sudden loss of power engine/transmission failure while mechanic driving resulting in car towed back to dealer. loss of power multiple times causing near accidents. sudden jolting at stop light causing car to propel forward requiered both feet on brake pedal to stop. 4 episodes of near collision 1st altert started 04/4/2024 adaptive cruise light on dash 14,700 miles on vehicle 5 episodes continued and now car is still at dealership for emissions failure, loss of power x 4 weeks. ALL PHOTOS OF DASH LIGHTS, REPAIR INVOICES AND VIDEO