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2021 GMC Terrain
Problems & Complaints
Worst 2021 GMC Terrain Problems by Category
Click on a category below for details. Help?
- transmission problems
- electrical problems
- drivetrain problems
- brakes problems
- engine problems
- exterior accessories problems
- suspension problems
- miscellaneous problems
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Compare GMC Terrain Model Years
Curious how the 2021 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.
Worst 2021 GMC Terrain Problems
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#1: Grating Shift Sound And Car Shaking 2021 Terrain
- Average Cost to Fix:
- N/A
- Average Mileage:
- 29,000 mi
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#2: Not Shifting Out Of 1st Gear & Jerky Shift In Low Gear 2021 Terrain
- Average Cost to Fix:
- N/A
- Average Mileage:
- 23,000 mi