CITROËN C4 PICASSO Handbook page 179

Alerts
According to the collision risk detected by the
system and the alert threshold chosen, three
levels of alert can be triggered.
Level 1: visual alert only (orange)
indicating that the vehicle in front is
very close. The message "Vehicle
close" is displayed.
This level of alert is based on the inter-vehicle
time between your vehicle and the one in front.
Level 2: visual (red) and audible
alerts indicating that a collision is
imminent. The message "Brake!" is
displayed.
This level of alert is based on a time before
collision. It takes account of the vehicle
dynamics, the speed of your vehicle and
the speed of the vehicle in front, the driving
conditions, the situation with your vehicle
(cornering, pedals pressed, etc.) to trigger the
alert at the right moment.
The change from one level of alert
to the next takes place if the driving
conditions do not change (speed
unchanged, no change of lane...)
If the speed of your vehicle is too high
when approaching another vehicle, the
first level of alert may not be displayed:
the level 2 alert may be displayed
directly.
On the other hand, the level 1 alert
is never displayed with the triggering
threshold 3 (close).
Severe weather conditions (very heavy
rain, accumulation of snow in front
of the radar) may interfere with the
operation of the system, resulting in
the display of the message "SYSTEM
INACTIVE: Reduced visibility". The
system remains unavailable until the
message disappears.
Operating fault
In the event of a fault, you are alerted
by the display of the Service warning
lamp, accompanied by a message.
Consult a CITROËN dealer or a
qualified workshop.
The operation of the radar, located in
the front bumper, may be disturbed by
accumulations of grime (dust, mud...)
or in certain weather conditions (snow,
ice...).
The message "SYSTEM INACTIVE:
Visibility reduced" is displayed to signal
that the system has been put into
standby.
Clean the front bumper regularly.
Driving
4
177