One problem related to engine shut off without warning has been reported for the 2018 GMC Terrain. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2018 GMC Terrain based on all problems reported for the 2018 Terrain.
The new auto stop that shuts off the motor when you're at a red light doesn't work properly. Sometimes it shuts off, but most of the time it doesn't been to the dealer two times and the radio will not come on at times even though gm has performed updates on these problems. The problems still exist.
| Engine And Engine Cooling problems | |
| Engine Shut Off Without Warning problems | |
| Service Engine Light On problems | |
| Engine Oil Leaking problems | |
| Engine Noise problems |