Chevrolet 6500 2010–2024 — technical service bulletin
Bulletin 16-NA-380 · NHTSA communication 10233844 · issued Mar 15, 2023
Technical service bulletin
communication type
Engine and Engine Cooling
component
2010–2024
model years
60
vehicle entries
Official summary
This service bulletin provides a diagnostic aid procedure on how to perform a quick test to check if the DPF is the cause of excessive soot from the tailpipe.
Vehicles covered
- 2019 Chevrolet 6500
- 2016 Chevrolet Colorado
- 2017 Chevrolet Colorado
- 2018 Chevrolet Colorado
- 2019 Chevrolet Colorado
- 2020 Chevrolet Colorado
- 2021 Chevrolet Colorado
- 2022 Chevrolet Colorado
- 2014 Chevrolet Cruze
- 2015 Chevrolet Cruze
- 2017 Chevrolet Cruze
- 2018 Chevrolet Cruze
- 2019 Chevrolet Cruze
- 2019 Chevrolet Duplicate Silverado 5500
- 2018 Chevrolet Equinox
- 2019 Chevrolet Equinox
- 2010 Chevrolet Express
- 2011 Chevrolet Express
- 2012 Chevrolet Express
- 2013 Chevrolet Express
- 2014 Chevrolet Express
- 2015 Chevrolet Express
- 2016 Chevrolet Express
- 2017 Chevrolet Express
- 2018 Chevrolet Express
- 2019 Chevrolet Express
- 2020 Chevrolet Express
- 2021 Chevrolet Express
- 2022 Chevrolet Express
- 2010 Chevrolet Express 1500
- 2011 Chevrolet Express 1500
- 2012 Chevrolet Express 1500
- 2014 Chevrolet Express 1500
- 2010 Chevrolet Express 2500
- 2011 Chevrolet Express 2500
- 2014 Chevrolet Express 2500
- 2010 Chevrolet Express 3500
- 2012 Chevrolet Express 3500
- 2014 Chevrolet Express 3500
- 2012 Chevrolet Express 4500
- 2014 Chevrolet Express 4500
- 2016 Chevrolet Express 4500
- 2013 Chevrolet Express Cutaway
- 2011 Chevrolet Silverado 1500
- 2012 Chevrolet Silverado 1500
- 2013 Chevrolet Silverado 1500
- 2014 Chevrolet Silverado 1500
- 2015 Chevrolet Silverado 1500
- 2016 Chevrolet Silverado 1500
- 2017 Chevrolet Silverado 1500
- 2018 Chevrolet Silverado 1500
- 2020 Chevrolet Silverado 1500
- 2021 Chevrolet Silverado 1500
- 2022 Chevrolet Silverado 1500
- 2023 Chevrolet Silverado 1500
- 2019 Chevrolet Silverado 2500
- 2020 Chevrolet Silverado 2500
- 2021 Chevrolet Silverado 2500
- 2022 Chevrolet Silverado 2500
- 2023 Chevrolet Silverado 2500
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.