Power Train Related Problems of the 2020 GMC Terrain

Table 1 shows three common power train related problems of the 2020 GMC Terrain. The number one most common problem is related to the power train (23 problems). The second most common problem is related to the vehicle shudder (one problem).

Table 1. Power Train related problems of GMC Terrain


Recently reported Power Train problems of the 2020 GMC Terrain

The Power Train problem

The intercooler has been a document problem on GMC Terrains for awhile now. I had my intercooler replaced and now less than 10 months it is having the same problem. The vehicle will go into reduced power mode which would be a safety hazard because it will also stall sometimes when it is having   Read details...

The Vehicle Shudder problem

Only a month after purchasing my vehicle I started to feel a wobble in the front end when accelerating up hills and turning while on the gas. I took it to the dealer and they changed out the front tires stating that the problem had been fixed. Once again while driving the problem persisted.   Read details...

The Automatic Transmission problem

2020 GMC Terrain. Consumer stated that their vehicle started pulling and dragging while driving.   Read details...


Power Train related problems in other GMC Terrain model year vehicles:



Terrain Service Bulletins
Terrain Safety Recalls
Terrain Defect Investigations