CITROEN DS3 Handbook page 139

LED lamps
This daytime lighting, a signature of the vehicle, comprises two sets of light-emitting diodes (LEDs),
located in vertical cutouts below each headlamp.
On starting the vehicle, in daylight the LED
lamps come on automatically, if the lighting
stalk is in position "0" or "AUTO".
If the sidelamps and headlamps are switched
on manually or automatically, the LED lamps
switch off.
Programming
For countries where exterior lighting by day is
not a legal requirement, you can activate or
deactivate the function via the multifunction
screen configuration menu.
In countries where it is a legal
requirement:
- this function is activated by default
and cannot be deactivated,
- in daylight, the sidelamps and
number plate lamps also come on,
- If the sidelamps or headlamps
are switched on manually or
automatically, the LED lamps
switch off.
For versions not fitted with LED lamps,
it is the dipped beam headlamps that
come on automatically on starting
the vehicle.
137
Visibility