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Check Engine Light On
2021 GMC Sierra 2500
This problem may be covered under warranty. Ask your GMC dealer.
8.0
pretty bad- Typical Repair Cost:
- No data
- Average Mileage:
- 100 miles
- Total Complaints:
- 1 complaints
electrical problem
Helpful websites
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A D V E R T I S E M E N T S
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All 2021 Chevrolet Silverados GMC Sierra, both the 2500 HD and 3500 HD, have software issues that are causing the check engine light to come on. The code is a P11D5 but there are no obvious exhaust or knock issues. This may be caused by software admirality. Jim and engineers are aware of the problem and are currently working on the solution. Just please clear the code and apologize to the customer!
Update from Oct 20, 2021: After Software update never had this issue again.
- Roger S., Mount Orab, US