Electrical System Related Problems of the 2020 GMC Terrain

Table 1 shows two common electrical system related problems of the 2020 GMC Terrain. The number one most common problem is related to the electrical system (25 problems). The second most common problem is related to the starter (one problem).

Table 1. Electrical System related problems of GMC Terrain

Problem Category Number of Problems
Electrical System problems
25
Starter problems
1

Recently reported Electrical System problems of the 2020 GMC Terrain

The Electrical System problem

The back passenger seat exploded and caught fire, burning the back of the seat in front and burning the ceilings. Inside the whole vehicle is black from smoke damage. Incident assessed by fire marshal who has ruled as electrical issue. No warning lights or systems displayed anything.   Read details...

The Starter problem

We drove to a farm with a family of 5m kids and an elderly, and parked my car for 2-3 hours in the farm's open area parking lot. Vehicle showed no warning lights, no problems, no issues during our drive to the farm and prior to this trip. Everything was fine when we go there and parked.   Read details...



Terrain Service Bulletins
Terrain Safety Recalls
Terrain Defect Investigations