This technical bulletin provides a procedure to program the ECM to correct the customers concern.
Chevrolet technical service bulletin 20NA055 for 2018-2019 Chevrolet Silverado 1500, 2018-2019 Chevrolet Tahoe and 2018-2019 GMC Sierra 1500 and others.
- Bulletin number
- 20NA055
- Component
- Engine
- Summary
- This technical bulletin provides a procedure to program the ECM to correct the customers concern.
Owners of these vehicles have filed 1,215 complaints in the engine category.
Vehicles covered
- Chevrolet Silverado 1500 2018-2019 20182019
- Chevrolet Tahoe 2018-2019 20182019
- GMC Sierra 1500 2018-2019 20182019
- Chevrolet Suburban 2018-2019 20182019
- GMC Yukon 2018-2019 20182019
- Chevrolet Silverado 2500 2019 2019
- GMC Yukon XL 2019 2019
- Cadillac Escalade 2018-2019 20182019
- Chevrolet Express 2020 2020
- Cadillac Escalade ESV 2019 2019
- GMC Savana 2020 2020
- Chevrolet Silverado 4500 2019 2019
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