WenmarOpen by Wenmar Pro

Service bulletin ITS-5591

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 id10054151
Published by NHTSA2013-12-26
Manufacturer's numberITS-5591
Manufacturer's date2013-12-26
NHTSA componentENGINE AND ENGINE COOLING:COOLING SYSTEM

NHTSA's summary

NEW FLYER BUSES: PROCEDURAL INFORMATION BEING PROVIDED REGARDING THE REMOVAL OF THE ISE COOLING LOOP BYPASS ON CERTAIN BUSES. NO MODEL OR YEARS LISTED. *PE

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

Engine, Cooling system

Vehicles listed
NEW FLYER NEW FLYER

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