This informational bulletin advises the technician to replace the TBV if the transmission has any type of...
Chevrolet technical service bulletin 21-NA-199 for 2016-2021 Chevrolet Silverado 1500, 2016-2020 Chevrolet Tahoe and 2016-2021 GMC Sierra 1500 and others.
- Bulletin number
- 21-NA-199
- 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 2,700 complaints in the transmission category.
Vehicles covered
- Chevrolet Silverado 1500 2016-2021 201620172018201920202021
- Chevrolet Tahoe 2016-2020 20162017201820192020
- GMC Sierra 1500 2016-2021 201620172018201920202021
- Chevrolet Suburban 2016-2020 20162017201820192020
- GMC Yukon 2016-2020 20162017201820192020
- Chevrolet Silverado 2500 2020-2021 20202021
- GMC Sierra 2500 2020-2021 20202021
- Chevrolet Silverado 3500 2020-2021 20202021
- Chevrolet Express 2021 2021
- GMC Sierra 3500 2020-2021 20202021
- GMC Savana 2021 2021
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