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Service bulletin SF653

A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeService bulletin
NHTSA id10213231
Published by NHTSA2022-06-04
Manufacturer's numberSF653
Manufacturer's date2022-05-08
NHTSA componentLANE DEPARTURE

NHTSA's summary

Western Star Field Service Campaign for Western Star 49X SRR Overwrite Sensor Mounting Data Update. On certain vehicles, the Short Range Radar (SRR) sensor, located on the passenger side, contains incorrect mounting position parameters. Incorrect mounting position parameters may cause early warning of passenger side objects.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Components

Driver assistance

Vehicles listed
WESTERN STAR 49X2021 to 2022

Listing a model year does not mean every vehicle of it is concerned: the document says which.