Ambience lighting
The dimmed passenger compartment lighting improves visibility in the vehicle when the light is poor.
See also:
Ventilation
Advice on interior settings
...
Operating fault
If this warning lamp comes on,
accompanied by an audible signal
and a message on the multifunction
screen, this indicates
a malfunction of these systems.
Have the systems checked by a
CITRO&Eu ...
Lighting controls
System for selection and control of the
various front and rear lamps providing
the vehicle's lighting. ...