Chevrolet Silverado 1500 2023 — technical service bulletin
Bulletin N232425900 · NHTSA communication 10245177 · issued Nov 9, 2023
Technical service bulletin
communication type
Parking Brake
component
2023
model years
2
vehicle entries
Official summary
Customer Satisfaction Program - Certain vehicles may have a condition in which the Electronic Park Brake does not auto release with Service 4WD message. Dealers are to reprogram the Transfer Case Control Module.
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.