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:
Manual adjustments
1. Adjustments to the height and angle of the head restraint
To raise it, pull upwards.
To lower it, press on the control A to unlock it, and simultaneously on the head
restraint itself. The adj ...
Exterior mirrors
Adjustment
A. Selecting the mirror.
B. Adjusting the position of the mirror.
C. De-selecting the mirror.
Other functions...
Folding/Unfolding. ...
Safety
New Citroën C4 achieves the highest standards of safety and has already been
awarded the maximum 5-star rating by independent assessors Euro NCAP, including
a score of 97% in the 'Safety Assi ...






