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Service bulletin CALWST54-005

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 id10225491
Published by NHTSA2022-11-02
Manufacturer's numberCALWST54-005
Manufacturer's date2022-10-19
NHTSA componentELECTRONIC STABILITY CONTROL:AUTOMATIC (ASC)

NHTSA's summary

Customer Advisory Letter for ABS MBSP Controller Parameter Update for Enhanced Stability Control.

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 49X2022

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