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Service bulletin 04909

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 id10012851
Published by NHTSA2005-04-01
Manufacturer's number04909
Manufacturer's date2005-03-01
Replaces04909
NHTSA componentSUSPENSION

NHTSA's summary

INTERNATIONAL RIDE OPTIMIZE SUSPENSIONS (IROS) INSTALLED IN RE BUS MODELS BUILT IN THE CONWAY ASSEMBLY PLANT BEFORE JUNE 16, 2004 REQUIRE THE IROS SYSTEM UPGRADED TO THECURRENT DESIGN LEVEL. REVISED. *TT

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

Suspension

Vehicles listed
UNKNOWN UNKNOWN

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