Chevrolet Silverado 1500 2017–2019 — technical service bulletin
Bulletin 20NA181 · NHTSA communication 10181707 · issued Sep 22, 2020
Technical service bulletin
communication type
Engine and Engine Cooling
component
2017–2019
model years
12
vehicle entries
Official summary
This technical bulletin provides a procedure to program the ECM if found the cause of the customers complaint.
Vehicles covered
- 2017 Chevrolet Silverado 1500
- 2018 Chevrolet Silverado 1500
- 2017 Chevrolet Silverado 2500
- 2018 Chevrolet Silverado 2500
- 2019 Chevrolet Silverado 2500
- 2018 Chevrolet Silverado 3500
- 2019 Chevrolet Silverado 3500
- 2017 GMC Sierra 2500
- 2018 GMC Sierra 2500
- 2019 GMC Sierra 2500
- 2017 GMC Sierra Denali
- 2018 GMC Sierra Denali
What a TSB means. Technical service bulletins are repair guidance manufacturers send to dealers — they are not recalls, and repairs are not automatically free (warranty extensions are an exception worth checking). The full document is available via NHTSA’s vehicle lookup.