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2018 GMC Terrain
2018 GMC Terrain Electrical Problems
Click on a problem below to read more.
- "Low Battery - Service Soon" Warning1
- Infotainment Nav Screen Brightness Failure1
- Infotainment System Quit. No Phone, Radio Went Black1
- NHTSA: Electrical System10
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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.