GMC Terrain owners have reported 1,245 engine and engine cooling related problems since 1996. Table 1 shows the 35 most common engine and engine cooling problems. The number one most common problem is related to the vehicle's engine and engine cooling (719 problems). The second most common problem is related to the vehicle's engine burning oil (132 problems). For details of each of the problem category, use the links in the table.
While driving my 2019 GMC Terrain on local roads, the vehicle suffered a sudden and complete failure of the braking system. The brake pedal became extremely hard to press, and the dashboard displayed a critical error message stating 'engine power is reduced. Read details...
The engine is burning oil. Losing oil quickly and no leak. Wiper motor shot. 90k miles on vehicle Read details...
On January 31, 2026, while driving on the highway, my 2017 GMC Terrain suddenly began shaking as if it was going to stall. Thankfully, I managed to exit the interstate before the vehicle lost power. Luckily, when this happened, it "only" blocked traffic on a side road. Read details...
Timing chain actuators diagnosed problem by dealer . Car hesitating, stalling out while driving. Read details...
My Terrain recently got the check engine light on the mechanic is telling me that it is the timing chain that all of this vehicles have this problem and I got lucky it only jumped one tooth to repair will cost me around $ 1500 what I don't understand if this is been going on for long time how is Read details...