Start with the tyre, not the warning light

A tyre-pressure warning can mean low pressure, a puncture or a TPMS sensor problem. Do not reset or ignore it until you have checked the tyre itself.

  1. Park safely and inspect every tyre for visible damage, a very low sidewall or an object in the tread.
  2. If a tyre is badly deflated, damaged or losing pressure quickly, do not continue driving. Follow the roadside procedure in the handbook.
  3. Let the tyres cool before taking accurate pressure readings.

Check and correct the pressures

  1. Find the tyre-pressure label fitted to the vehicle.
  2. Measure all four tyres with a reliable gauge.
  3. Adjust each tyre to the cold pressure specified for your vehicle and load.
  4. Refit the valve caps and listen or look for signs of leakage.
  5. Drive for a short period above 40 km/h (about 25 mph) when road conditions allow, then recheck the display.

Expected result: after a simple pressure correction, the warning should clear once the car receives stable readings from the sensors.

After replacing a tyre or sensor-equipped wheel

  1. Leave the vehicle stationary for at least 17 minutes after the work.
  2. Drive safely at more than 40 km/h (about 25 mph) for approximately 10 minutes.
  3. Avoid reversing during this calibration drive where practical.
  4. Park and check whether every wheel now shows a plausible reading.

If the warning remains

  1. Recheck every cold pressure against the vehicle label.
  2. Check the affected tyre for a slow puncture.
  3. Confirm that the correct sensor-equipped wheel is fitted and that its sensor was not damaged during tyre work.
  4. Note whether the display reports low pressure or a TPMS system fault, and record which wheel is shown.

Stop and arrange professional inspection if pressure keeps falling, the tyre is damaged, handling changes or a TPMS fault persists. Do not keep adding air to disguise a leak.