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2021 GMC Sierra 2500
Problems & Complaints
Worst 2021 GMC Sierra 2500 Problems by Category
Click on a category below for details. Help?
- exhaust system problems
- exterior accessories problems
- body / paint problems
- electrical problems
- steering problems
- seat belts / air bags problems
- brakes problems
- engine problems
- wheels / hubs problems
- miscellaneous problems
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Compare GMC Sierra 2500 Model Years
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Check out our GMC Sierra 2500 overview to see the most problematic years, worst problems and most recently reported complaints with the Sierra 2500.
Worst 2021 GMC Sierra 2500 Problems
-
#1: Def Tank Failure 2021 Sierra 2500
- Average Cost to Fix:
- $9,800
- Average Mileage:
- 69,000 mi
-
#2: Check Engine Light On 2021 Sierra 2500
- Average Cost to Fix:
- N/A
- Average Mileage:
- 0 mi
-
#3: Lane Assistance Not Working 2021 Sierra 2500
- Average Cost to Fix:
- N/A
- Average Mileage:
- 34,000 mi