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Service bulletin FT4590R1

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 id10164976
Published by NHTSA2019-09-16
Manufacturer's numberFT4590R1
Manufacturer's date2019-08-01
NHTSA componentENGINE; ENGINE AND ENGINE COOLING:COOLING SYSTEM:FAN

NHTSA's summary

Engine Fan Connector hot

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

Engine, Cooling fan, Cooling system

Vehicles listed
NOVA BUS LFS2011
NOVA BUS LFS ARTIC2012 to 2013

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