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Service bulletin SS705-WST2021REV

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 id10194487
Published by NHTSA2021-05-27
Manufacturer's numberSS705-WST2021REV
Manufacturer's date2021-05-24
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

Revised Western Star Service Solution for XMC Output Reliability regarding the six 20 Amp outputs (001-006) on the XMC's.

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

Electrical system

Vehicles listed
WESTERN STAR 49X2021

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