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Service bulletin WB18-15

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 id10138431
Published by NHTSA2018-05-21
Manufacturer's numberWB18-15
Manufacturer's date2018-03-26
NHTSA componentELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL

NHTSA's summary

On the vehicles affected by this bulletin, the instrument cluster software must be updated. This mandatory cluster software update will raise the primary and secondary air system ?low pressure warning? set point.

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

Electrical system, Instrument cluster, Software

Vehicles listed
PREVOST H32013
PREVOST H3-412013 to 2017
PREVOST H3-452013 to 2017
PREVOST H3-45 VIP2015
PREVOST X32014 to 2017

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