Chevrolet Silverado 1500 2023 — technical service bulletin
Bulletin N222391510 · NHTSA communication 10233274 · issued Mar 27, 2023
Technical service bulletin
communication type
Electrical System
component
2023
model years
2
vehicle entries
Official summary
Customer Satisfaction Program - certain vehicles, may have a body harness that is missing various circuits. Dealers are to replace the body harness circuits with a VIN specific harness.
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.