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2012 GMC Sierra
Problems & Complaints
Worst 2012 GMC Sierra Problems by Category
Click on a category below for details. Help?
- engine problems
- miscellaneous problems
- drivetrain problems
- lights problems
- suspension problems
- electrical problems
- body / paint problems
- brakes problems
- seat belts / air bags problems
- steering problems
- exterior accessories problems
- wheels / hubs problems
- windows / windshield problems
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Compare GMC Sierra Model Years
Curious how the 2012 Sierra compares to other years?
Check out our GMC Sierra overview to see the most problematic years, worst problems and most recently reported complaints with the Sierra.
Worst 2012 GMC Sierra Problems
-
#1: Shake Or Vibration 2012 Sierra
- Average Cost to Fix:
- N/A
- Average Mileage:
- 0 mi
-
#2: Vibration Under Heavy Load 2012 Sierra
- Average Cost to Fix:
- N/A
- Average Mileage:
- 10,000 mi
-
#3: Diesel Leak In Engine Bay, Engine Smoking 2012 Sierra
- Average Cost to Fix:
- N/A
- Average Mileage:
- 12,000 mi





