Chevrolet Silverado 1500 2023 — technical service bulletin
Bulletin N232397530 · NHTSA communication 10234616 · issued Apr 20, 2023
Technical service bulletin
communication type
Structure
component
2023
model years
2
vehicle entries
Official summary
Service Update. On certain vehicles, the side blind zone alert (SBZA) modules may have been installed on the wrong side of the rear bumper. Dealers are to ensure the modules are in the correct location.
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.