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Shimano STEPS error codes

Shimano error E010
System error

The system has detected an error and stopped the assist.

Checked against Shimano's own manual: October 23, 2026.

A short list, on purpose. These are the Shimano codes we could confirm in Shimano's own manuals. Most come from Shimano's Japanese manual for the E8080 system and are translated, so follow each source link for Shimano's exact wording. For any code not listed, use Shimano's official lookup at si.shimano.com/error.

What Shimano says

A system error was detected. Assist isn't available.

Shimano's recommended steps

  1. Press the battery's power button to turn the system on again.
  2. Keep your feet off the pedals when you switch on.

Summarized from Shimano STEPS E8080 user manual (Japanese, translated) (error E010), checked October 23, 2026. Follow the link for Shimano's exact wording.

If it keeps coming back

If the code comes back after a restart, have it checked by a mechanic who works on Shimano systems. Bikes Plus has diagnostic tools for Shimano and most other major motor systems.

Write down the code and what you were doing when it appeared. That saves time at the shop.

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Make sure it's a Shimano code

Error numbers mean different things on different systems. This page covers Shimano STEPS and EP e-bike systems. Codes starting with W are warnings, which clear when conditions improve; codes starting with E are errors, which point to a possible fault. Shimano's E-TUBE PROJECT Cyclist app can read the code from the bike.

All Shimano codes Step-by-step checks