CITROËN C4 Handbook page 129

In good or rainy weather, by both day
and night, the front foglamps and the
rear foglamps are prohibited. In these
situations, the power of their beams
may dazzle other drivers. They should
only be used in fog or falling snow.
In these weather conditions, you should
switch on the foglamps and dipped
beam headlamps manually, as the
sunshine sensor may detect sufficient
light.
Do not forget to switch off the front and
rear foglamps when they are no longer
necessary.
Switching off the lighting when
switching off the ignition
When the ignition is switched off, all of the
lamps switch off immediately, except for
the dipped beam headlamps if automatic
guide-me-home lighting is activated.
Switching on the lighting
when switching on the
ignition
To reactivate the lighting control stalk,
turn the ring A to position "0" - lighting
off, then to the position of your choice.
When the driver's door is opened, a
temporary audible signal warns you that
the vehicle's lighting is on.
They switch off automatically after a
period which depends on the state of
charge of the battery (entry to energy
economy mode).
Lighting and visibility
4
127