Motoautonomy — motorcycle parts and warning lights explained
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ABS
RIDE WITH CAUTION — CHECK SOONColour varies by model

ABS warning

Many ABS lights go out only after the motorcycle moves; if yours stays on past the handbook's threshold or appears while riding, ABS may be unavailable.

Last reviewed: 23 July 2026 · Exact behaviour varies by make, model and year

Normal behaviour

On many motorcycles the ABS warning remains on after the engine starts and goes out only when the bike reaches a low speed. The threshold is model-specific. Wheel rotation while the motorcycle is raised can also trigger temporary behaviour on some models.

Possible fault

If the light does not go out at the speed specified in the handbook, comes back on while riding or appears with another brake warning, the ABS may not operate correctly.

What to do

Check the handbook and make sure the light has had the normal opportunity to self-check. If it indicates a fault, increase following distance, avoid situations requiring abrupt braking and arrange inspection. Conventional braking often remains available, but anti-lock protection may not — and another braking fault cannot be ruled out from the symbol alone.

Possible causes

  • Dirty, damaged or misaligned wheel-speed sensor or sensor ring
  • Wiring or connector fault
  • Low battery or charging voltage
  • Incorrect wheel or tyre configuration
  • ABS control-unit or hydraulic-system fault

When not to ride

Do not ride if braking feels different, a red brake warning is also present, fluid is leaking, a lever or pedal is spongy, or the handbook identifies a serious combined-system fault.

Owner's handbook: Symbols, colours and behaviour vary by manufacturer and model. Your owner's handbook is the final reference for your motorcycle.

Sources

Other warning lights