Driving
Checking tyre pressures
The loss of pressure detected may not
always cause visible deformation of the
tyre.
Tyre under-inflation
detection
8
This check should be done monthly when
the tyres are "cold" (vehicle stopped for 1
hour or after a journey of less than 6 miles
(10 km) at moderate speeds).
Otherwise, add 0.3 bar to the pressures
shown on the label.
Do not rely on just a visual check.
This system alerts the driver if one or more
tyres suffer a drop in pressure.The alert is raised
when the vehicle is moving, not when stationary.
It compares the information given by the wheel
speed sensors with reference values, which
must be reinitialised every time the tyre
pressures are adjusted or a wheel changed.It
takes into account the last values stored
during the reinitialisation request. It is therefore
essential that the tyre pressure is correct during
the operation. This operation is the driver’s
responsibility.
► Using a compressor, such as the one in
the temporary puncture repair kit, check the
pressures of all four tyres when cold.
► If it is not possible to carry out this
check immediately, drive carefully at reduced
speed.
Snow chains
The system does not have to be
reinitialised after fitting or removing snow
chains.
► In the event of a puncture, use the temporary
puncture repair kit or the spare wheel
(depending on equipment).
Under-inflation alert
Driving too slowly may not ensure
optimum monitoring.
This is signalled by the fixed
illumination of this warning lamp,
accompanied by an audible signal
and, depending on equipment, the
display of a message.
The tyre under-inflation detection cannot,
in any circumstances, replace the need for
vigilance on the part of the driver.
This system does not avoid the need to
regularly check the tyre pressures (including
the spare wheel), especially before a long
journey.
Driving with under-inflated tyres, particularly
in adverse conditions (heavy load, high
speed, long journey):
The alert is not immediately triggered in the
event of a sudden loss of pressure or tyre
blow-out. This is because analysis of the
values read by the wheel's speed sensors
can take several minutes.
The alert may be delayed at speeds below 25
mph (40 km/h), or when adopting a dynamic
driving style.
► Reduce speed immediately, avoid excessive
steering movements and avoid sudden
braking.
► Stop the vehicle as soon as it is safe to do
so.
► worsens road-holding.
► Using a compressor, such as the one in
the temporary puncture repair kit, check and
adjust the pressures of all four tyres when
cold.
The alert is kept active until the system is
reinitialised.
► lengthens braking distances.
► causes premature wear of the tyres.
► increases energy consumption.
► If it is not possible to do this check, drive
carefully at reduced speed.
► In the event of a puncture, use the temporary
puncture repair kit or the spare wheel
(depending on equipment).
The inflation pressures defined for the
vehicle can be found on the tire pressure
label.
For more information on the Identification
markings, refer to the corresponding section.
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English 
