This technical bulletin provides repair information to correct a customer concern of Service Engine Soon...
Chevrolet technical service bulletin 20NA155 for 2019-2020 Chevrolet Silverado 1500, 2019-2020 GMC Sierra 1500 and 2019-2020 Chevrolet Blazer and others.
- Bulletin number
- 20NA155
- Component
- Electrical system: software
- Summary
- This technical bulletin provides repair information to correct a customer concern of Service Engine Soon Message at Start Up or Shortly after Start Up.
Owners of these vehicles have filed 779 complaints in the electrical category.
Vehicles covered
- Chevrolet Silverado 1500 2019-2020 20192020
- GMC Sierra 1500 2019-2020 20192020
- Chevrolet Blazer 2019-2020 20192020
- GMC Acadia 2019-2020 20192020
- Cadillac XT5 2019-2020 20192020
- Cadillac XT6 2020 2020
- Cadillac CT6 2019-2020 20192020
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