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Service bulletin IS11015B

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 id10131476
Published by NHTSA2018-04-02
Manufacturer's numberIS11015B
Manufacturer's date2012-11-08
NHTSA componentEQUIPMENT:ELECTRICAL

NHTSA's summary

This Instruction Sheet explains how to replace power relay p/n 561991 with improved power relay p/n 564218 and relay base p/n 564210

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

Equipment and accessories

Vehicles listed
PREVOST H3-412010 to 2014
PREVOST H3-452010 to 2014
PREVOST H3-VIP2010 to 2014
PREVOST W52011
PREVOST WE2010 to 2013
PREVOST X32010 to 2014
PREVOST X3VIP2014

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