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Service bulletin V4ZUS21

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 id612546
Published by NHTSA2000-06-08
Manufacturer's numberV4ZUS21
Manufacturer's date2000-04-25
NHTSA componentUNKNOWN OR OTHER

NHTSA's summary

SUBJECT REGARDING RECENT INQUIRIES CONCERNING THE BMW BC COMMUNICATION SYSTEM. *TT

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Vehicles listed
BMW BMW MOTORCYCLE

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