# Service bulletin SBW54\-090

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.

- Type: Service bulletin
- NHTSA id: 10222234
- Published by NHTSA: 2022\-10\-04
- Manufacturer's number: SBW54\-090
- Manufacturer's date: 2022\-09\-28
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

Western Star Service Bulletin for ABS mBSP ECU Software Update Fault Code 629\-11. New Cascadia vehicles manufactured from September 12, 2018 through March 22, 2021 that are equipped with WABCO Anti\-Lock Braking System \(ABS\) controllers log excessive 629\-11 fault codes, which can lead to additional downstream fault codes. The ABS controller will receive a software update to eliminate erroneous fault codes and ensure proper function.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10222234-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10222234-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Electrical system

## Vehicles listed

- 2020 to 2022 WESTERN STAR 47X
- 2020 to 2022 WESTERN STAR 49X

JSON: [/v1/bulletins/10222234](/v1/bulletins/10222234)

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