Print report
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
- brakes problems
- seat belts / air bags problems
- lights problems
- engine problems
- miscellaneous problems
- drivetrain problems
- wheels / hubs problems
Loading ...
one sec.
Stay Up to Date
Compare GMC Sierra 2500 Model Years
Curious how the 2021 Sierra 2500 compares to other years?
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