Chevrolet Silverado 1500 2021 — technical service bulletin
Bulletin PIP5788B · NHTSA communication 10231651 · issued Jan 20, 2023
Technical service bulletin
communication type
Equipment
component
2021
model years
2
vehicle entries
Official summary
This Preliminary information communicates Some customers may comment that the SES lamp is illuminated or was Illuminated and turned off, with no driveabilty concerns. During inspection Technician may notice DTC P2635. Unknown at this time engineering is working on this concern
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.