Chevrolet Silverado 2500 2020–2023 — technical service bulletin
Bulletin PIT6137 · NHTSA communication 10253106 · issued Mar 22, 2024
Technical service bulletin
communication type
Service Brakes
component
2020–2023
model years
8
vehicle entries
Official summary
This Preliminary information communicates an issue with clearing DTC: C15DD and how to rest the average release time to clear DTC.
Vehicles covered
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.