CITROEN C4 PICASSO Handbook page 217

Before reinitialising the system, ensure
that the pressures of the four tyres are
correct for the use of the vehicle and in
line with the recommendations on the
tyre pressure label.
The under-inflation detection system
does not give a warning if a pressure is
incorrect at the time of reinitialisation.
Snow chains
The system does not have to be
reinitialised after fitting or removing
snow chains.
Reinitialisation of the system is done in the the
touch screen tablet, with the ignition on and the
vehicle stationary.
F Select the "Driving assistance" menu.
F In the secondary page, press
"Under-inflation initialisation".
F Confirm the instruction by pressing "Yes",
an audible signal and a message confirm
the reinitialisation.
The new pressure settings registered are
considered to be reference values by the
system.
The under-inflation alert can only be
relied on if reinitialisation of the system
is done with the the four tyre pressures
correctly set.
Operating fault
The flashing and then fixed illumination of the
under-inflation warning lamp accompanied
by illumination of the "service" warning lamp
indicates a fault with the system.
In this case, under-inflation monitoring of the
tyres is no longer assured.
Have the system checked by a CITROËN
dealer or a qualified workshop.
Before doing anything to the system,
the pressures of the four tyres must be
checked and the system reinitialised.
Safety
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