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Service bulletin BS4076ER1

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 id10115688
Published by NHTSA2017-08-16
Manufacturer's numberBS4076ER1
Manufacturer's date2017-07-21
NHTSA componentENGINE AND ENGINE COOLING:COOLING SYSTEM:HOSES/LINES/PIPING/FITTINGS

NHTSA's summary

Air supply line might get disconnected due to mismatch between the hose and the fitting.

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 system

Vehicles listed
NOVA BUS LFS2017

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

Other bulletins for the same vehicles and component
FT4567R12019-09-16. Service bulletin. Engine Fan Connector hot
FT45672019-05-13. Service bulletin. Engine Fan Connector hot
LI4074E2017-08-14. Service bulletin. Improved solution to secure Radiator Canopy Panel hardware