Chevrolet Silverado 1500 2024 — technical service bulletin
Bulletin PIT6123B · NHTSA communication 10253073 · issued Mar 11, 2024
Technical service bulletin
communication type
Service Brakes
component
2024
model years
2
vehicle entries
Official summary
This Preliminary information communicates on a software anomaly that causes a Rear Auto Brake and Park Assist Unavailable message on start up that is temporary and how to address that 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.