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RecallGazette

Vehicle problems, recalls & safety intelligence

Chevrolet 3500 2010–2022technical service bulletin

Bulletin 16NA380 · NHTSA communication 10212594 · issued Jan 10, 2022

Technical service bulletin
communication type
Equipment
component
2010–2022
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.

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.