CITROEN C4 Spacetourer Handbook page 167

The following situations may interfere with
the operation of the system or prevent it
from working:
- poor visibility (inadequate street
lighting, falling snow, heavy rain, dense
fog, etc.),
- dazzle (headlamps of an oncoming
vehicle, low sun, reflections on a damp
road, leaving a tunnel, alternating
shade and light, etc.),
- camera or radar masked (mud, frost,
snow, condensation, etc.).
In these situations, detection performance
may be reduced.
The message "SYSTEM INACTIVE:
Reduced visibility". is displayed to indicate
that the function is in standby.
Clean the front bumper regularly.
If the front bumper is to be repainted or
retouched, contact a CITROËN dealer
or a qualified workshop. Certain types of
paint could interfere with the operation of
the radar.
Malfunction
If the cruise control
malfunctions, dashes are
displayed instead of the
cruise control speed setting.
If this warning lamp comes
on, accompanied by an
alert message and an
audible signal, this confirms
a malfunction.
Have the system checked by a CITROËN
dealer or a qualified workshop.
The adaptive cruise control deactivates
automatically if the use of a "space-saver"
type spare wheel is detected or if there is
a malfunction on the lateral brake lamps or
trailer brake lamps (for approved trailers).
Active Safety Brake with
Collision Risk Alert and
Intelligent emergency
braking assistance
The system allows:
- the driver to be warned that their vehicle is
at risk of collision with the vehicle in front,
- a collision to be prevented, or its severity to
be limited, by reducing the vehicle's speed.
This system is a driving aid that includes three
functions:
- Collision Risk Alert (alert if there is a risk of
collision),
- Intelligent emergency braking assistance,
- Active Safety Brake (automatic emergency
braking).
Driving
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