Chevrolet Silverado 2017 — technical service bulletin
Bulletin PIP5523 · NHTSA communication 10157036 · issued Sep 26, 2017
Technical service bulletin
communication type
Engine
component
2017
model years
2
vehicle entries
Official summary
This Preliminary information communicates to dealer technicians to update the GPCM calibration if glowplug DTCs are found.
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.