Electrical System Related Problems of the 2012 GMC Terrain

Table 1 shows nine common electrical system related problems of the 2012 GMC Terrain. The number one most common problem is related to the electrical system (22 problems). The second most common problem is related to the battery dead (two problems).


Recently reported Electrical System problems of the 2012 GMC Terrain

The Electrical System problem

1. The engine suddenly lost power while driving during evening rush hour and the vehicle would no longer accelerate. 2. Because the vehicle could not maintain speed, I was unable to keep up with traffic, creating a serious safety hazard that could have resulted in a major accident. 3.   Read details...

The Battery Dead problem

I purchased my 2012 GMC Terrain from clay cooley in irving, TX on 01/05/2015 with an extended service contract. I have had issues with this vehicle ever since. I took the vehicle in for service and was told the service contract would not cover my issue and that the issue was caused by lack of   Read details...

The Car Will Not Start problem

Took my 2012 Terrain in for the excessive oil burn in may 2017. Several times before the car would not start. I was told by dealer it was due to the oil being low due to burn within 1000 miles of change. About a month after getting it back it started randomly not starting.   Read details...


Electrical System related problems in other GMC Terrain model year vehicles:



Terrain Service Bulletins
Terrain Safety Recalls
Terrain Defect Investigations