This technical bulletin provides a procedure to clear the codes and test the Tcase if found that the...
Chevrolet technical service bulletin 20-NA-050 for 2014-2020 Chevrolet Silverado 1500, 2014-2020 Chevrolet Tahoe and 2014-2020 GMC Sierra 1500 and others.
- Bulletin number
- 20-NA-050
- Component
- Power train
- Summary
- This technical bulletin provides a procedure to clear the codes and test the Tcase if found that the customer has tried to shift the t-case from 4lo to Hi gears while driving.
Owners of these vehicles have filed 3,477 complaints in the transmission category.
Vehicles covered
- Chevrolet Silverado 1500 2014-2020 2014201520162017201820192020
- Chevrolet Tahoe 2014-2020 2014201520162017201820192020
- GMC Sierra 1500 2014-2020 2014201520162017201820192020
- Chevrolet Suburban 2014-2020 2014201520162017201820192020
- GMC Yukon 2014-2020 2014201520162017201820192020
- Chevrolet Silverado 2500 2019-2020 20192020
- Chevrolet Colorado 2015-2019 20152016201720182019
- GMC Sierra 2500 2019-2020 20192020
- Cadillac Escalade 2014-2020 2014201520162017201820192020
- GMC Canyon 2015-2019 20152016201720182019
- Chevrolet Silverado 3500 2019-2020 20192020
- GMC Sierra 3500 2019-2020 20192020
VIN decoder
See the problems and recalls for an exact car
Buying a used Chevrolet Silverado 1500?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history