This informational bulletin advises the technician to replace the TBV if the transmission has any type of...
Chevrolet technical service bulletin 21NA199 for 2016-2019, 2021 Chevrolet Silverado 1500, 2016-2020 Chevrolet Tahoe and 2016-2019, 2021 GMC Sierra 1500 and others.
- Bulletin number
- 21NA199
- Component
- Power train
- Summary
- This informational bulletin advises the technician to replace the TBV if the transmission has any type of repair even if no problem was found, to replace the tbv.
Owners of these vehicles have filed 2,471 complaints in the transmission category.
Vehicles covered
- Chevrolet Silverado 1500 2016-2019, 2021 20162017201820192021
- Chevrolet Tahoe 2016-2020 20162017201820192020
- GMC Sierra 1500 2016-2019, 2021 20162017201820192021
- Chevrolet Suburban 2016-2020 20162017201820192020
- GMC Yukon 2016-2020 20162017201820192020
- Chevrolet Silverado 2500 2016-2019 2016201720182019
- GMC Yukon XL 2016-2020 20162017201820192020
- GMC Sierra 2500 2016-2019 2016201720182019
- Cadillac Escalade 2016-2020 20162017201820192020
- Chevrolet Silverado 3500 2016-2019 2016201720182019
- Chevrolet Express 2021 2021
- GMC Sierra 3500 2016-2019 2016201720182019
- Cadillac Escalade ESV 2016-2020 20162017201820192020
- GMC Savana 2021 2021
- GMC Sierra Denali 2016-2019 2016201720182019
- Chevrolet Silverado 4500 2019 2019
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