Why is my Tyre Pressure Light Flashing? | TPMS Repair or Replacement Mobile

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If your TPMS light is illuminated on your dashboard but it's not a constant light and is flashing – your problem doesn't lie with your tyres or tyre pressure.

The most likely issue here is that you have a problem with the sensor itself. A TPMS Sensor is against to the wheel rim (inside the inflated tyre), it's attached to the valve stem which then follows a TPMS core through to the cap (where you put air in!), as shown below...

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The sensor is an electronic device which transmits Tyre Pressure, Tyre Air Temperature, Battery Status and a Unique ID Number to the cars on-board computer, a.k.a. the vehicle's "brain"!

Some, or all, of these data fields are captured by the vehicle's ECU to report a loss of pressure/punctures etc to the driver. Since 2014, TPMS has been compulsory on all cars and can be a potential MOT failure if not operating correctly. These sensors have a battery life of approximately 5-7 years (this may vary between manufacturers), so if you've got a flashing light on your dash and your vehicle is around 5 years old, this will likely be the cause!

Our mobile tyre fitting vans are fully equipped to deal with all TPMS repair/replacement issues, including programming and coding a brand-new replacement TPMS Sensor.

Wheel Swaps with TPMS Sensors

It is sometimes advised to swap your wheels over when you have new tyres fitted, with indirect TPMS this wouldn't cause an issue. This is because the TPMS works off the ABS and sends a signal to the vehicle when you have a problem with any of your tyres.

Direct TPMS will alert your vehicle of the exact tyre the problem lies with, hence why swapping your wheels can cause a problem! The ECU will be trying to read a code for the front sensor but from the rear wheel… resulting in a confused car and a flashing light on your dash!

If you've got a problem with your TPMS light – call us! We can come out and fix the problem for you, fully mobile with a time specific appointment to suit you.