CITROEN Grand C4 PICASSO Owner's Handbook Manual page 208

Visibility
Side markers for the vehicle by illumination of
the sidelamps on the traffic side only.
Within one minute of switching off the
ignition, operate the lighting control stalk up
or down depending on the traffic side (for
example: when parking on the left; lighting
control stalk upwards; the right hand
sidelamps are on).
This is confirmed by an audible signal and
illumination of the corresponding direction
indicator warning lamp in the instrument panel.
To switch off the parking lamps, return the
lighting control stalk to the central position.
206
Manual guide-me-home
lighting
The temporary illumination of the dipped beam
headlamps after the vehicle's ignition has been
switched off makes the driver's exit easier when
the light is poor.
Switching on
With the ignition off, "flash" the headlamps
using the lighting stalk.
A further "headlamp flash" switches the
function off.
Switching off
The manual guide-me-home lighting switches
off automatically after a set time.