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Service bulletin WB09-23

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 id10044011
Published by NHTSA2012-05-05
Manufacturer's numberWB09-23
Manufacturer's date2010-01-01
NHTSA componentENGINE AND ENGINE COOLING:EXHAUST SYSTEM

NHTSA's summary

PREVOST: PREHEATER EXHAUST PIPE HOLDING CLAMP MAY NOT BE PROPERLY POSITIONED. MAKE SURE THAT THE HOLDING CLAMP IS LOCATED ABOVE THE SPLASH GUARD AND NOT BENEATH. *JS

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

Engine, Exhaust and emissions

Vehicles listed
PREVOST H3-412009 to 2010
PREVOST H3-452009 to 2010

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