CITROËN DS4 Owner's Handbook Manual page 60

Black panel (black screen)
System allowing certain screens to be switched
off for night driving.
The instrument panel remains on with the
analogue vehicle speed, electronic gearbox
system or automatic gearbox gear selected,
cruise control or speed limiter information, if in
use, and the low fuel alerts as appropriate.
If there is an alert or a change in a function
or to a setting, the black panel mode is
interrupted.
Activation
With the vehicle lighting on, press this
button again to activate the black panel.
Press once more to illuminate on the
various screens again.
In order to retain the digital reading of the
speed in km/h, activation of black panel mode
is prohibited in countries that use metric units.
Customising the instrument
panel colours
In the instrument panel, you can change the
colour of its dials (button A ) independently from
that of the screens (button B ).
There are five colour variants, from white to
blue.
press the appropriate button as many times
as needed to obtain the desired colour.