Severity: Caution (Amber)

Tyre pressure warning

An amber tyre cross-section with an exclamation mark, meaning a tyre has lost pressure or the system needs resetting.

Can you continue driving?

Yes, with caution — get it checked soon

Tyre pressure warning symbol

What this light means

One or more tyres has fallen below the pressure the system expects, or the system has not been reset since the tyres were last inflated or a wheel was changed.

Common causes

  • A slow puncture
  • Cold weather — pressure falls as temperature does
  • Pressures corrected but the system not reset afterwards
  • A sensor battery at the end of its life
  • A spare or replacement wheel with no sensor fitted

What to do now

Check all four tyres with a gauge at the next safe opportunity and set them to the pressures on the label in the door opening or fuel flap — not the number moulded into the tyre sidewall, which is a maximum, not a recommendation.

If one tyre is far lower than the rest, treat it as a puncture. If the car pulls, thumps or the steering feels vague, slow down and stop somewhere safe rather than pressing on to the next services.

When to see a mechanic

If a tyre keeps losing pressure after being inflated, or the light stays on once pressures are correct and the system has been reset.

Guides that cover this light

Maintenance & Service

How to Check Tyre Pressure

Tyre pressure affects braking, steering, fuel use and how long your tyres last — and it is the check drivers…

Reading time
4 min

Cars these guides cover

Dashboard symbols are largely standardised; these are the models with guides that mention this one.

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