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Service bulletin WB11-29A

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 id10044052
Published by NHTSA2012-05-09
Manufacturer's numberWB11-29A
Manufacturer's date2011-11-01
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:DIESEL; ELECTRICAL SYSTEM:SOFTWARE

NHTSA's summary

PREVOST: VOLVO D13 ENGINE US10 VERSION: ENGINE CONTROL MODULE (ECM) AND AFTERTREATMENT CONTROL MODULE (ACM) SOFTWARE UPDATES. *KB

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, Engine, Software

Vehicles listed
PREVOST H3-452011
PREVOST X3-452011

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