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Service bulletin 1056

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 id10016180
Published by NHTSA2005-09-02
Manufacturer's number1056
Manufacturer's date2005-06-22
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

DETERMINED BY VANSCO-ELECTRONIC LP, THAT THE VMM 2820 MODULE USED IN CERTAIN 2005 AND 2006 ALPINE COACH LIMITED AND AVALANCHE MAY EXPERIENCE FAILURE OF OPERATIONAL FUNCTIONS. *SC

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Electrical system

Vehicles listed
WESTERN ALPINE COACH2005 to 2006
WESTERN AVALANCHE2005 to 2006

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