This function alerts you in the event of a tyre being deflated or punctured. For this purpose, sensors continuously monitor the condition of the vehicle’s wheels. This system does not absolve the driver of the need to check the tyre pressures regularly.

Under-inflation warning

The SERVICE warning lamp lights up and a vehicle outline is displayed. The wheel(s) concerned will be shown flashing on the vehicle outline. Check the tyre pressures as soon as possible.

Puncture

The STOP warning lamp lights up and a vehicle outline is displayed. The wheel(s) concerned will be shown flashing on the vehicle outline. Stop the vehicle immediately, avoiding any violent actions on the steering wheel or brakes.

Change the damaged wheel (whether punctured or substantially deflated), have the tyre repaired as soon as possible, then check the tyre pressure as soon as you can after that. The wheel affected will no longer be detectable by the alert system if it is in the boot or undergoing repair (information given by the vehicle outline). The spare wheel will not be monitored by the alert system.

Wheel without senso

The SERVICE warning lamp lights up and a vehicle outline is displayed. The wheel(s) concerned will be shown as absent on the vehicle outline. If you have not changed a wheel, this information indicates a malfunctionong of the system. Consult the CITROËN network to have the defective sensor(s) replaced. The deflation detection system is a driving assistance function which does not absolve the driver from the responsibility to be vigilant, or from the need to check the tyre pressures regularly (see "Vehicle identification").

This system does not absolve the driver of the need to check the tyre pressures on a regular basis (see "Identification"), to ensure that the vehicle behaves as it should and to avoid premature wear on the tyres, especially when the vehicle is being subjected to heavy loads or driven at high speeds.

Do not forget to check the tyre pressure on the spare wheel.

Any repair or any change of tyre, on a wheel fitted with a sensor, should be carried out by a CITROËN Dealer. The system may be affected from time to time by interference from radio transmissions on similar frequencies.