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Service bulletin SS722-WST2022

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 id10207352
Published by NHTSA2022-02-05
Manufacturer's numberSS722-WST2022
Manufacturer's date2022-01-20
NHTSA componentSERVICE BRAKES, HYDRAULIC; ELECTRICAL SYSTEM

NHTSA's summary

ABA off Switch Instructions. Incorrect programing parameters in the ICUC were not allowing the ABA to be turned off.

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

Brakes, Electrical system

Vehicles listed
WESTERN STAR 49X2021

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