CITROEN C4 Handbook page 135

This system:
– warns the driver that their vehicle is at risk of
collision with the vehicle in front, a pedestrian or,
depending on version, a cyclist.
– reduces the vehicle's speed to avoid a
collision or limit its severity.
The speed will be reduced by a
maximum of 12 mph (20 km/h) (versions
with camera only) or by a maximum of 31
mph (50 km/h) (versions with camera and
radar).
The system also takes motorcyclists into
account.
This system is comprised of three functions:
– Collision Risk Alert.
– Intelligent emergency braking assistance
(iEBA).
– Active Safety Brake (automatic emergency
braking).
The vehicle has a multifunction camera located
at the top of the windscreen and, depending on
version, a radar located in the front bumper.
This system does not replace the need
for driver vigilance.
This system is designed to assist the driver
and improve road safety.
It is the driver's responsibility to continuously
monitor traffic conditions in accordance with
applicable driving regulations.
As soon as the system detects a
potential collision, it prepares the braking
circuit. This may cause a slight noise and a
slight sensation of deceleration.
Deactivation/Activation
By default, the system is automatically activated
at every engine start.
With Touch screen BLUETOOTH audio
system or MyCitroën Play
The settings are changed via the Driving
touch screen menu.
With MyCitroën Drive
The settings are changed via the Vehicle
touch screen menu.
With MyCitroën Drive Plus
The settings are changed via the ADAS
touch screen application.
Deactivation of the system is signalled by
the illumination of this warning lamp,
accompanied by the display of a message.
Operating conditions and
limits
Vehicle moving forward without trailer.
Brake system operational.
Seat belts fastened for all passengers.
Stabilised speed on roads with no or low
curvature.
This warning lamp lights up on the
instrument panel without any additional
message, to indicate that the automatic braking
system is not available.
This is a normal behavior indicating that a
condition is not fulfilled and which does not
request the support of a workshop.
In any situations with ignition on where automatic
braking presents a risk, deactivating the system
is recommended, for instance:
Driving
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