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Service bulletin Cypher III FW

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 id10225539
Published by NHTSA2022-11-01
Manufacturer's numberCypher III FW
Manufacturer's date2022-10-25
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

Zero Motorcycles Firmware Release Notes October 26, 2022 MY20/21/22/23 Cypher III MBB Rev 27/6 BMU Rev 6/4 BMS Rev 21 Fixes an issue in ride mode display.

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

Electrical system

Vehicles listed
ZERO DSR/X2023
ZERO SR2022 to 2023
ZERO SR/F2020 to 2023
ZERO SR/S2020 to 2023

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