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Service bulletin ZF02012021

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 id10188148
Published by NHTSA2021-03-04
Manufacturer's numberZF02012021
Manufacturer's date2021-02-01
NHTSA componentEQUIPMENT

NHTSA's summary

Certain AV133 axles delivered with a potentially impaired screw connection on the flange shaft used on certain Proterra and NovaBus bus applications. Potentially affected parts were manufactured between April -September 2020.

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

Equipment and accessories

Vehicles listed
ZF ZF

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