Tyre Under-Infl Ation Detection - CITROËN C4 Picasso Owner's Handbook Manual

Safety
Tyre under-infl ation detection
System which automatically checks the pressure of the tyres while driving.
The system continuously monitors the
pressures on the four tyres, once the vehicle is
moving.
It compares the information given by the four
wheel speed sensors with reference values,
which must be reinitialised every time the tyre
pressures are adjusted or a wheel changed.
The system triggers an alert as soon as it
detects a drop in the inflation pressure of one
or more tyres.
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The under-inflation detection system
does not replace the vigilance or the
responsibility of the driver.
This system does not avoid the need to
check the tyre pressures (including the
spare wheel) every month as well as
before a long journey.
Driving with under-inflated tyres impairs
road holding, extends braking distances
and causes premature tyre wear,
particularly under arduous condition
(high loading, high speed, long journey).
Driving with under-inflated tyres
increases fuel consumption.
The inflation pressures defined for
your vehicle can be found on the tyre
pressure label (see the "Identification
markings" section).
Tyre pressures should be checked
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.