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2018 GMC Terrain
Engine Problems
2018 GMC Terrain Engine Problems
Click on a problem below to read more.
- Auto Start-Stop
- Broken Piston
- Excessive Oil Usage
- NHTSA: Engine
- NHTSA: Vehicle Speed Control
- NHTSA: Engine And Engine Cooling
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Compare GMC Terrain Model Years
Curious how the 2018 Terrain compares to other years?
Check out our GMC Terrain overview to see the most problematic years, worst problems and most recently reported complaints with the Terrain.





