One problem related to warnings has been reported for the 2025 GMC Terrain. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2025 GMC Terrain based on all problems reported for the 2025 Terrain.
Top of roof pops when you shut car door, leaking either transmission fluid or oil, left turn signal doesn't stay engaged when turning, side mirror warning lights randomly go off when no car is around. Car is not shifting correctly when driving.