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Service bulletin SS711-WST 2021

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 id10200707
Published by NHTSA2021-08-31
Manufacturer's numberSS711-WST 2021
Manufacturer's date2021-08-30
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

Service Solution for Aux E-vault Rattle in Day Cab. Rattle noise inside of cab coming from the e-vault location. Mounting bracket has low fore/aft stiffness

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 to 2022

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