# Over\-the\-air update Cypher III OTA Firmware

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.

- Type: Over\-the\-air update
- NHTSA id: 11034503
- Published by NHTSA: 2026\-07\-06
- Manufacturer's number: Cypher III OTA Firmware
- Manufacturer's date: 2026\-06\-09
- Campaign id or software version: MBB V45, BMU V21, BMS V27
- NHTSA component: ENGINE; UNKNOWN OR OTHER; FUEL/PROPULSION SYSTEM

## NHTSA's summary

CYPHER III OTA FIRMWARE RELEASE Coming Soon The latest firmware release \(MBB V45, BMU V21, BMS V27\) for 2020\+ Cypher III motorcycles will be available Over The Air to customers on June 17. This release includes: Bug fixes Security improvements General system stability enhancements While customers may simply see an update notification, dealers should be aware that this release marks an important transition toward the Tuner diagnostic tool. For motorcycles running the latest Cypher III firmware, Tuner will become the primary tool for many service and maintenance functions moving forward. If your dealership hasn't explored Tuner yet, now is the perfect time to get started.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11034503-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11034503-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Engine, Fuel system

## Vehicles listed

- 2020 to 2021 ZERO DS
- 2023 to 2026 ZERO DS
- 2020 to 2021 ZERO DSR
- 2023 to 2026 ZERO DSR
- 2023 to 2026 ZERO DSR/X
- 2023 to 2025 ZERO DSRP
- 2020 to 2021 ZERO S
- 2023 to 2026 ZERO S
- 2020 to 2024 ZERO SR
- 2020 to 2026 ZERO SR/F
- 2020 to 2026 ZERO SR/S

JSON: [/v1/bulletins/11034503](/v1/bulletins/11034503)

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