CITROEN DS3 Handbook page 68

Locking the vehicle
with exterior perimeter
protection only
deactivation of the interior
volumetric protection
F Switch off the ignition.
F Within ten seconds, press button A until
the indicator lamp is on continuously.
F Get out of the vehicle.
F Lock or deadlock the vehicle without delay
using the locking button on the remote
control.
The exterior perimeter protection alone remains
activated; the indicator lamp in button A flashes
once per second.
To be effective, this deactivation must
be carried out each time the ignition is
switched off.
Reactivation of the interior
volumetric protection
F Unlock the vehicle using the unlocking
button on the remote control.
F Relock the vehicle using the remote
control.
The alarm is activated again with both types
of protection; the indicator lamp in button A
flashes once per second.
Triggering of the alarm
This is indicated by sounding of the siren
and flashing of the direction indicators for
approximately thirty seconds.
After it has been triggered, both types of
protection are again operational.
If the alarm is triggered ten times in
succession, the eleventh time will result in it
becoming inactive.
If the indicator lamp in button A flashes
rapidly, this indicates that the alarm
was triggered during your absence.
When the ignition is switched on, this
flashing stops immediately.
To avoid triggering the alarm when
washing your vehicle, lock it using the
key in the driver's door lock.