This technical bulletin provides a procedure to locate a possible short in the engine wiring harness.
Chevrolet technical service bulletin 21NA081 for 2019-2021 Chevrolet Silverado 1500, 2019-2021 GMC Sierra 1500 and 2021 GMC Yukon and others.
- Bulletin number
- 21NA081
- Component
- Electrical system
- Summary
- This technical bulletin provides a procedure to locate a possible short in the engine wiring harness.
Owners of these vehicles have filed 735 complaints in the electrical category.
Vehicles covered
- Chevrolet Silverado 1500 2019-2021 201920202021
- GMC Sierra 1500 2019-2021 201920202021
- GMC Yukon 2021 2021
- GMC Yukon XL 2021 2021
- Cadillac Escalade ESV 2021 2021
- Cadillac Escalade Na 2021 2021
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