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Service bulletin IS-19911C

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 id10161728
Published by NHTSA2019-07-03
Manufacturer's numberIS-19911C
Manufacturer's date2019-06-10
NHTSA componentELECTRICAL SYSTEM; EQUIPMENT

NHTSA's summary

INTELLIGENT SLEEP MODE INSTALLATION

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, Equipment and accessories

Vehicles listed
PREVOST H3-412016 to 2018
PREVOST H3-452016 to 2019
PREVOST H3-45 VIP2016 to 2019

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