One problem related to door has been reported for the 2012 GMC Terrain. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2012 GMC Terrain based on all problems reported for the 2012 Terrain.
The contact owns a 2012 GMC Terrain. The contact stated that there was severe corrosion on the rear driver side of the vehicle. The vehicle was taken to an independent mechanic where the technician diagnosed the door was incorrectly sealed and needed to be replaced. No repairs were made to the vehicle. The manufacturer was made aware of the failure. The failure mileage was 60,000.