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Service bulletin BS4145ER1

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 id10142428
Published by NHTSA2018-06-25
Manufacturer's numberBS4145ER1
Manufacturer's date2018-02-05
NHTSA componentSTRUCTURE; EQUIPMENT ADAPTIVE/MOBILITY

NHTSA's summary

Dust intrusion in baselights area through the return air grill.

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

Body and frame, Equipment and accessories

Vehicles listed
NOVA BUS LFS ARTIC2012 to 2013

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