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Service bulletin BS5203E

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 id10205735
Published by NHTSA2022-01-03
Manufacturer's numberBS5203E
Manufacturer's date2021-12-10
NHTSA componentENGINE AND ENGINE COOLING

NHTSA's summary

Belt Guard Corrosion and Interference. The corrosion issues are due to the belt guards design and base material itself.

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

Vehicles listed
NOVABUS BUS

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