Amber light
Tyre Pressure Warning Light
The tyre pressure monitoring system has detected low pressure in one or more tyres, or a system fault.
High risk
Reduce speed and check the tyres soon. A tyre losing pressure quickly can fail, especially at motorway speed.
Short answer · What should I do when the tyre pressure light comes on?
Slow down and check all tyres, including visually for damage or nails, at the next safe stop. Inflate them to the pressure on the door pillar or fuel flap label, measured cold. If the light flashes before staying on, the monitoring system itself has a fault and pressures must be checked by hand.
What to do
- Slow down and lookStop where safe and look for a flat or damaged tyre.
- Measure and inflateUse a gauge, ideally with cold tyres, and set the pressure on the vehicle label.
- Reset the system if neededMany cars need a reset in the menu or a short drive after inflation; see the owner's manual.
- Repair puncturesA tyre that keeps losing air needs a repair or replacement.
How is the light behaving?
| What you see | What it usually means | What to do |
|---|---|---|
| Steady | One or more tyres under-inflated | Check and inflate all tyres |
| Flashing | Flashes for about a minute, then stays on: system fault | Check pressures manually and have the system checked |
Possible causes
- Puncture or slow leakA nail, valve or rim leak lowers pressure.
- Temperature dropCold weather lowers tyre pressure.
- Tyre change without resetThe system needs to learn new pressures or sensors.
- Sensor battery or faultDirect systems use sensors with batteries that wear out.
Don't confuse it with
Questions about Tyre Pressure Warning Light
Why did the light come on on a cold morning?
Air pressure falls as temperature drops. Inflate to the label value and the light should go off.
Can I drive with the tyre pressure light on?
Short distances at reduced speed, after checking that no tyre is flat. Under-inflation increases braking distance and wear.