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Tyres

My TPMS light won't switch off — what should I do?

Diagnosing a persistent TPMS light

If your TPMS warning light is still on after you have inflated your tyres, there are some things you can try yourself before you go to a garage.

Guided troubleshooting

  • Check all four tyre pressures with a gauge and match them to the levels stated in your handbook
  • Drive for 10 to 15 minutes at an average speed. Some systems reset on their own once the right pressures are detected.
  • If your handbook covers the steps, you can try a manual reset using your vehicle's TPMS reset procedure.
  • If your vehicle has a spare tyre with a sensor, check that too. A low spare can trigger the warning.

If the light still won't clear

The problem could be due to a defective pressure sensor, a dead sensor battery (sensor batteries typically last 5 to 10 years), or an unsafely fitted sensor following a recent tyre change or wheel swap. Go to a garage to have the system diagnosed and the faulty sensor replaced if necessary.

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