Chevrolet 6500 2017–2022 — technical service bulletin

Bulletin 19NA187 · NHTSA communication 10212612 · issued Jan 12, 2022

Technical service bulletin

communication type

Engine and Engine Cooling

component

2017–2022

model years

vehicle entries

Official summary

This bulletin provides additional information on how to graph a cylinder misfire and a possible diagnostic cause.

Vehicles covered

2019 Chevrolet 6500
2019 Chevrolet Duplicate Silverado 5500
2017 Chevrolet Silverado 1500
2018 Chevrolet Silverado 1500
2019 Chevrolet Silverado 1500
2020 Chevrolet Silverado 1500
2021 Chevrolet Silverado 1500
2022 Chevrolet Silverado 1500
2017 Chevrolet Silverado 2500
2018 Chevrolet Silverado 2500
2019 Chevrolet Silverado 2500
2020 Chevrolet Silverado 2500
2021 Chevrolet Silverado 2500
2022 Chevrolet Silverado 2500
2017 Chevrolet Silverado 3500
2018 Chevrolet Silverado 3500
2019 Chevrolet Silverado 3500
2020 Chevrolet Silverado 3500
2021 Chevrolet Silverado 3500
2022 Chevrolet Silverado 3500
2019 Chevrolet Silverado 4500
2020 Chevrolet Silverado 4500
2021 Chevrolet Silverado 4500
2022 Chevrolet Silverado 4500
2019 Chevrolet Silverado 5500
2020 Chevrolet Silverado 5500
2021 Chevrolet Silverado 5500
2019 Chevrolet Silverado 6500
2021 Chevrolet Silverado 6500
2022 Chevrolet Silverado 6500
2017 GMC Sierra 1500
2018 GMC Sierra 1500
2019 GMC Sierra 1500
2020 GMC Sierra 1500
2021 GMC Sierra 1500
2022 GMC Sierra 1500
2017 GMC Sierra 2500
2018 GMC Sierra 2500
2019 GMC Sierra 2500
2020 GMC Sierra 2500
2021 GMC Sierra 2500
2022 GMC Sierra 2500
2017 GMC Sierra 3500
2018 GMC Sierra 3500
2019 GMC Sierra 3500
2020 GMC Sierra 3500
2021 GMC Sierra 3500
2022 GMC Sierra 3500

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.