CITROEN DS3 Handbook page 34

Warning lamp is on
fixed, accompanied by
Under-inflation
an audible signal and
a message.
flashing then fixed,
+
accompanied by the
Service warning lamp.
cause
The pressure in one or more wheels
is too low.
The system has fault: the tyre
pressures are no longer monitored.
Action / Observations
Check the pressure of the tyres as soon as possible.
This check should preferably be carried out when the
tyres are cold.
You must reinitialise the system after the adjustment
of one or more tyre pressures and after changing one
or more wheels.
For more information, refer to the "Under-inflation
detection" section.
Check the tyre pressures as soon as possible.
have the system checked by a CITROËN dealer or a
qualified workshop.