All WCAG criteria
WCAG 2.5.4 · OperableLevel A

2.5.4Motion Actuation

Functions triggered by device motion (shake to undo, tilt to scroll) must have an alternative, and motion-trigger must be disable-able.

Common failures

Patterns that fail this criterion.

  • 01Mobile web app with "shake to undo" and no button
  • 02Photo app where the only way to rotate an image is to tilt the phone
How to test

Testing approach: manual.

Manual — find motion-triggered features; confirm UI alternative exists and motion trigger can be disabled.

How to fix

Remediation steps.

  1. 1

    Always provide a UI alternative

    Shake to undo? Add an Undo button.

  2. 2

    Settings to disable motion triggers

    Users with motor impairments may trigger motion accidentally.

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