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Tyre pressure loss warning

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Tyre pressure loss warning

When fitted to the vehicle, this system notifies the driver if one or more tyres lose pressure.
The system can be identified by the 1 label in the vehicle.

Operating principle

This system detects a loss of pressure in one of the tyres by measuring the wheel speed while driving.
Warning light 2 comes on steady to alert the driver in the event of insufficient pressure (deflated wheel, punctured tyre, etc.).
WARNING
This function is an additional driving aid.
The function does not take the place of the driver. It cannot, therefore, under any circumstances replace the vigilance or the responsibility of the driver. Check the tyre pressures, including the emergency spare wheel, once a month.

Operating conditions

In order to provide a reliable warning in the event of significant pressure loss, the system must be reset with an inflation pressure equal to one of those shown on the tyre inflation pressure label (reference values) TYRE PRESSURE.
Resetting should always be carried out after checking the tyre pressure of all four tyres when cold.
In the following situations, the system risk coming into action late or not functioning correctly:
  • system not reset after reinflation or any operation on the wheels;
  • incorrectly reset system: tyre pressures different from the recommended pressures;
  • significant change in load or distribution of load on one side of the vehicle;
  • sporty driving with strong acceleration;
  • driving on snowy or slippery surface;
  • driving with snow chains;
  • fitting a single new tyre;
  • use of tyres not approved by the network.
Tip
Tyre pressure must be checked before starting the resetting procedure.
The system will not issue a warning if the pressure does not correspond to the recommended pressure.
Tip
A sudden loss of pressure in a tyre (burst tyre, etc.) may not be immediately detected by the system.

Procedure for resetting the standard levels for the tyre pressures

This should be performed:
  • after each re-inflation or resetting of tyre pressure;
  • after changing a wheel;
  • after swapping a wheel (however, this practice is not recommended).
Tyre pressures must correspond to the current usage of the vehicle (empty, carrying a load, motorway driving, etc.). Respect the tyre pressures (including the emergency spare wheel). Check them at least once a month and before a long journey (refer to the label on the edge of the driver’s door ).

Resetting procedure via the multimedia screen 3

The resetting procedure must be carried out while the vehicle is stationary and the ignition is switched on.
Please refer to the multimedia instructions for further information.

Message display

The table below shows the possible messages related to the tyre resetting procedure.
Steps
Messages
Readings
-
Tyre pressure init. at stop
The message is displayed during driving. If you want to reset the pressure of the four tyres, stop the vehicle.
1
Tyre pressure init. long press
To reset the pressure of the four tyres, with the vehicle stopped, press and hold the 5OK switch to launch resetting until the "If pressure OK [hold on]" message is displayed.
2
If pressure OK [hold on]
The message flashes as a reminder that the pressure must be adjusted to the reference values recommended on the tyre inflation pressure label TYRE PRESSURE. To confirm the reset request, press and hold switch 5OK until the "Operation completed" message appears.
3
Operation completed
The resetting procedure has been completed successfully. You can now drive.

Readjustment of tyre pressures

The pressure of the four tyres must be set when cold (refer to the label located on the edge of the driver's door) TYRE PRESSURE.
If tyre pressures cannot be checked when the tyres are cold, the recommended pressures should be increased by 0.2 to 0.3 bar (3 PSI).
Never deflate a hot tyre.
After each reinflation or readjustment of the tyre pressure, launch the resetting of the tyre pressure reference value.

Replacing wheels/tyres

Only use equipment approved by the brand network, otherwise the system risks late activation or incorrect operation.
After each change of wheel/tyre, readjust the tyre pressure and launch the reset of the tyre pressure reference value.

Emergency spare wheel

If fitted on the vehicle, readjust the tyre pressure and launch the resetting of the tyre pressure reference value.

Tyre repair product and inflation kit

Only use equipment approved by the brand network, otherwise there is risk of the system being activated late or not working correctly TYRE INFLATION KIT. After using the tyre inflation kit, readjust the tyre pressure and launch the resetting of the tyre pressure reference value.

Tyre pressure faults

The table lists the warning messages which appear on the instrument panel 6 when the system detects a tyre pressure fault.
The information on the instrument panel signals any potential tyre pressure faults (e.g. deflated or punctured tyre).

Fault message table

Indicator lights
Messages
Readings
comes on
Inflate tyres and init.
This indicates that tyre under-inflation or puncture has been detected. Check and adjust the pressure of the four tyres when cold and reset the system.
flashes, then stays on
Check tyre press and init.
This indicates that the reset has been unsuccessful. Check and readjust the tyre pressure before re-launching the resetting procedure.
flashes, then stays on, along with the warning light
Check TPW
This indicates a fault in the system. Consult an approved dealer.
flashes, then stays on
TPW not available
This indicates that an emergency spare wheel different in size to the other four wheels has been fitted to the vehicle. The system remains unavailable until a wheel identical in size to the other wheels has been fitted and the resetting procedure has been carried out.