Lighting rheostat
System for manual adjustment of the brightness of the instruments and controls in relation to the exterior brightness.

Activation
When the lighting is on:
- press the button to change the brightness of the instruments and controls,
- when the level of brightness required is reached, release the button.
Deactivation
When the lighting is off, or in day mode on vehicles fi tted with daytime running lamps, pressing the button does not have any effect.
See also:
Access to the tools
The tools are installed in the boot under
the fl oor.
To gain access to them:
open the boot,
raise the fl oor,
remove the polystyrene storage box,
unclip and remove the box containing
...
Activation
The system is activated as soon as reverse
gear is engaged, accompanied
by an audible signal.
The proximity information is given by:
- an audible signal, which becomes
more rapid as the vehicle a ...
Comfort & convenient technology
The new Citroën C4 is designed for business-class travel with intuitive,
intelligent technology enabling owners to tailor the new C4's environment and
ambience to their own preferences. For e ...






