GMC Terrain owners have reported 285 service brakes related problems since 1996. Table 1 shows the 11 most common service brakes problems. The number one most common problem is related to the vehicle's service brakes (261 problems). The second most common problem is related to the vehicle's brakes failed (7 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...
Vehicle was running but transmission was in park. Suddenly on screen in front of driver this message appeared: brake system failure 43mph top speed warning service esc. Vehicle was not moving. Engine was running but vehicle was in park. I had to drive it home. Very difficult to stop. Read details...
The contact owns a 2019 GMC Terrain. The contact stated that while stopped and attempting to turn to exit a highway ramp, he observed a loud banging noise emanating from the engine compartment. An "engine reduced power" message appeared. Read details...
Have not driven vehicle for a month or more because of pressure when braking. Required more pressure when holding brake at red light or in traffic. Felt as if my foot would slip off brake. Read details...
Issue # 1-the wiper blades stopped working during a rain storm and were stuck midway on the windshield right in my site line while on o long 9 hour trip. I checked the engine compartment area after stopping the vehicle in a safe area. Read details...