CITROEN DS4 Owner's Handbook Manual page 131

Welcome lighting
The remote switching on of the passenger compartment lighting makes your access to the vehicle
easier in poor light. It is activated depending on the light level detected by the sunshine sensor.
Switching on
 Press the open padlock on the
remote control; your vehicle is
unlocked.
On the outside, the sidelamps and dipped
beam headlamps, as well as the side
spotlamps, located under the door mirrors,
come on.
On the inside, the footwell and courtesy lamps
come on.
Switching off
On the outside, the welcome lighting switches
off automatically after a set time, when the
ignition is switched on or on locking the vehicle.
On the inside, the welcome lighting switches off
automatically after a pre-determined time or on
opening one of the doors.
Programming
Activation or deactivation, as well as
the duration of the lighting duration
for the exterior welcome lighting can
be set via the vehicle configuration
menu.
129
Visibility