Power Train Related Problems of the 2023 GMC Terrain

Table 1 shows two common power train related problems of the 2023 GMC Terrain. The number one most common problem is related to the power train (four problems). The second most common problem is related to the automatic transmission gear indicator (one problem).

Table 1. Power Train related problems of GMC Terrain


Recently reported Power Train problems of the 2023 GMC Terrain

The Power Train problem

Took dealer 3/26 for sam issue engine power reduced after already cause me hit curb. Got it out 4/1/26 now 4/5/26 it happened again same codes after they claimed they fixed it. Also keep having emergency services come on a caused my dashboard out. My issues is car keeps stalling losing power.   Read details...

The Automatic Transmission Gear Indicator problem

The contact owns a 2023 GMC Terrain. The contact stated while driving at approximately 5 mph, and entering the roadway from the driveway, the vehicle stalled. The contact stated that there were no warning lights. The contact stated that the vehicle had lost electrical power.   Read details...


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



Terrain Service Bulletins
Terrain Safety Recalls
Terrain Defect Investigations