WenmarOpen by Wenmar Pro

Service bulletin IS-19911B

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 id10154464
Published by NHTSA2019-03-11
Manufacturer's numberIS-19911B
Manufacturer's date2019-02-04
NHTSA componentEQUIPMENT

NHTSA's summary

This Instruction sheet explains how to install Ism (Intelligent Sleep Mode) - on H Series with PRIME hardware

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 H3-412016 to 2018
PREVOST H3-452016 to 2018

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