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Warning· Gen3 · Cypher III dash

Zero error code 64

Left Turn Signal Bulb Out Fault

LightingSource: MBBDashboard code
Last updated: July 30, 2026

What it means

Left Turn Signal Bulb Out Fault

Left turn signal connection open - the bulb or its connector is out.

WarningMonitor the situation, may self-resolve.

What to do

  1. 1Check/replace the left turn signal bulb or connection.

Which bikes use this table

Cypher III dash: SR/F and SR/S (2020+), DSR/X (2023+), S/F, and the S, SR, DS and DSR from 2024, when those four moved to the FST platform.

Questions

What does error code 64 mean on a Zero Gen3 dash?

Left Turn Signal Bulb Out Fault. Left turn signal connection open - the bulb or its connector is out. It is classed as warning: monitor the situation, may self-resolve.

What should I do about it?

Check/replace the left turn signal bulb or connection.

See when this actually happened on your bike

A dash code tells you the fault; the log tells you the pack temperature, the state of charge and the ten minutes leading up to it.

Upload a log

The code and its name are transcribed from Zero's own owner manuals; the severity, category and troubleshooting notes are ours. For official diagnostics, consult an authorized Zero Motorcycles dealer.