GMC Terrain owners have reported 1 problem related to navigational (global positioning system) gps (under the equipment category). The most recently reported issues are listed below. Also please check out the statistics and reliability analysis of GMC Terrain based on all problems reported for the Terrain.
I have brand new GMC Terrain 2026, I leased dog on Aug 4th 2025. After one week into driving the vehicle, onstar, gps nav stopped working and the emergency calling is not working. All features related to locating the vehicle through onstar or through google stopped working, in addition to sos not working. I took it to the dealership they said the telematics module needs replacement.
| Problem Category | Number of Problems |
|---|---|
| Equipment problems | |
| Radio/tape Cd Player problems | |
| Carrier/rack problems | |
| Owners/service Manual problems | |
| Adaptive Equipment problems | |
| Air Conditioner problems | |
| Recreational Vehicle Lpg Tank Valve/gauge problems | |
| Mechanical Jack problems | |
| Navigational (global Positioning System) Gps problems |