Chevrolet Silverado 2500 2023 — technical service bulletin
Bulletin PIP5871 · NHTSA communication 10224282 · issued Sep 9, 2022
Technical service bulletin
communication type
Unknown OR Other
component
2023
model years
2
vehicle entries
Official summary
This Preliminary information communicates that there is an update calibration for the ecm concerning a P11D5 setting on 2023 Chevrolet and GMC trucks equipped with the L5P engine.
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.