Limp Mode, Check Engine Light

2020 GMC Sierra 1500

This problem may be covered under warranty. Ask your GMC dealer.

8.0

pretty bad
Typical Repair Cost:
No data
Average Mileage:
2,300 miles
Total Complaints:
1 complaints

Most Common Solutions:

  1. not sure (1 reports)
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2020 GMC Sierra 1500 exhaust system problems

exhaust system problem

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2020 GMC Sierra 1500 Owner Comments

problem #1

Oct 142020

Sierra 1500 At4 Duramax 3.0L

  • Automatic transmission
  • 2,300 miles

A D V E R T I S E M E N T S

45 days in repair shop for same emissions and exhaust issues. It's a lemon! Gmc has been horrible for the consumer. Ruined me as a customer for life if they don't replace the truck.

- Charles S., St James City, US

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