CITROEN DS3 Owner's Handbook Manual page 120

Automatic rain sensitive
windscreen wipers
The windscreen wipers operate automatically,
without any action on the part of the driver, if
rain is detected (sensor behind the rear view
mirror), adapting their speed to the intensity of
the rainfall.
Activation
This is controlled manually by the driver by
pushing stalk A to the "AUTO" position.
It is accompanied by the illumination
of this indicator lamp in the
instrument panel and a message in
the multifunction screen.
Switching off
This is controlled manually by the driver
by moving stalk A upwards, returning it to
position "0" .
It is accompanied by the indicator lamp
in the instrument panel going off and a
message in the multifunction screen.
The automatic wiping must be
reactivated if the ignition has been off
for more than one minute, by pushing
stalk A downwards.