Chevrolet Duplicate Silverado 5500 2016–2020 — technical service bulletin
Bulletin 16NA274 · NHTSA communication 10154637 · issued Feb 28, 2019
Technical service bulletin
communication type
Equipment
component
2016–2020
model years
10
vehicle entries
Official summary
This Informational bulletin provides important instructions for contacting the Fleet Action Center for repair authorization prior to replacement of certain parts.
Vehicles covered
- 2019 Chevrolet Duplicate Silverado 5500
- 2016 Chevrolet Silverado 3500
- 2017 Chevrolet Silverado 3500
- 2018 Chevrolet Silverado 3500
- 2019 Chevrolet Silverado 3500
- 2020 Chevrolet Silverado 3500
- 2019 Chevrolet Silverado 4500
- 2020 Chevrolet Silverado 4500
- 2020 Chevrolet Silverado 5500
- 2019 Chevrolet Silverado 6500
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.