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Driving -> Parking sensors for Your Citroen C4 SUV Third Generation (2020-2025)

Driving  
As soon as the speed of the vehicle  
drops below 43 mph (70 km/h), the  
system goes into standby.  
Driving time starts being counted again once  
the speed reaches above 43 mph (70 km/h).  
After three first-level alerts, the system triggers  
a further alert with the message "Driving at  
risk: Take a break", accompanied by a more  
pronounced audible signal.  
This system detects and signals the proximity of  
obstacles (e.g. pedestrian, vehicle, tree, barrier)  
using sensors located in the bumper.  
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Rear parking sensors  
In certain driving conditions (poor road  
surface or strong winds), the system may  
give alerts independent of the driver's level of  
vigilance.  
► Engage reverse gear to start the system  
(confirmed by an audible signal).  
The system is switched off when reverse gear is  
disengaged.  
Driver Attention Warning  
Depending on version, the Coffee Break Alert  
system may be combined with the Driver  
Attention Warning system.  
The following situations may interfere  
with the operation of the system or  
prevent it from working:  
Audible assistance  
– lane markings absent, worn, hidden (snow,  
mud) or multiple (roadworks);  
– close to the vehicle ahead (lane markings  
not detected);  
– roads that are narrow, winding, etc.  
The system signals the presence of obstacles  
which are both within the sensors’ detection zone  
and in the vehicle path defined by the direction of  
the steering wheel.  
The proximity information is given by an  
intermittent audible signal, the frequency of  
which increases as the vehicle approaches the  
obstacle.  
Parking sensors  
For more information, refer to the  
General recommendations on the use  
of driving and manoeuvring aids.  
The system assesses the driver's level of  
alertness, fatigue and distraction by  
identifying trajectory changes in relation to the  
lane markings.  
To do this, the system uses a camera, placed on  
the upper part of the windscreen.  
This system is particularly suited to fast roads  
(speed higher than 43 mph (70 km/h)).  
At a first alert level, the driver is warned by  
the message "Caution!", accompanied by an  
audible signal.  
When the distance between the vehicle and  
the obstacle becomes less than about thirty  
centimetres, the audible signal becomes  
continuous.  
The sound emitted by the speaker (right or  
left) indicates the side on which the obstacle is  
located.  
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Driving  
Adjusting the audible signal  
(With MyCitroën Drive or MyCitroën  
Drive Plus)  
forward gear, if an obstacle is no longer detected  
or the vehicle speed exceeds 6 mph (10 km/h).  
Deactivation/Activation  
(Depending on country of sale)  
The sound emitted by the speaker (front  
or rear) locates the obstacle relative to  
the vehicle, in front or behind it.  
With Touch screen BLUETOOTH audio  
system or MyCitroën Play  
Pressing this button opens the window  
for adjusting the volume of the audible  
The settings are changed via the Driving  
signal.  
touch screen menu.  
Side parking sensors  
With MyCitroën Drive  
Visual assistance  
The settings are changed via the Vehicle  
touch screen menu.  
With MyCitroën Drive Plus  
The settings are changed via the ADAS  
touch screen application.  
If the function is deactivated, this indicator  
lamp lights up on the instrument panel.  
The system status is saved when the ignition is  
switched off.  
Using four additional sensors located on the  
sides of the bumpers, the system records the  
position of obstacles during the manoeuvre and  
indicates them when they are located alongside  
the vehicle.  
This supplements the audible signal, without  
taking account of the vehicle's trajectory, by  
displaying bars on the screen that represent the  
distance between the obstacle and the vehicle  
(white: more distant, orange: close, red: very  
close).  
Only fixed obstacles are indicated  
correctly. Moving obstacles detected at  
the beginning of the manoeuvre may be  
indicated mistakenly, while moving obstacles  
that appear alongside the vehicle but were  
not previously recorded will not be indicated.  
When the obstacle is very close, the "Danger"  
symbol is displayed on the screen.  
Front parking sensors  
The rear parking sensors are deactivated  
automatically if a trailer or bicycle carrier  
is connected to a towing device installed in  
accordance with the Manufacturer's  
recommendations.  
Supplementing the rear parking sensors, the  
front parking sensors are triggered when an  
obstacle is detected in front and the speed of the  
vehicle is below 6 mph (10 km/h).  
Objects memorised during the  
manoeuvre will no longer be stored after  
switching off the ignition.  
Front parking sensor operation is suspended if  
the vehicle stops for more than three seconds in  
In this case, the outline of a trailer is displayed  
at the rear of the image of the vehicle.  
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Driving  
The turquoise curves 4 show the maximum  
The parking sensors are deactivated while the  
Park Assist function is measuring a space.  
For more information on the Park Assist  
function, refer to the corresponding section.  
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turning angle in either direction.  
C4  
Opening the tailgate causes the display  
to disappear.  
When starting the vehicle, the graphic  
and audible aids are only available after  
the touch screen has started up.  
Clean the reversing camera regularly  
using a soft, dry cloth.  
The reversing camera is activated automatically  
when reverse gear is engaged.  
The image is displayed on the touch screen.  
Operating limits  
If the boot is heavily loaded, the vehicle may tilt,  
affecting distance measurements.  
Top Rear Vision - 360  
Vision  
The reversing camera function may be  
supplemented by the parking sensors.  
Malfunction  
In the event of a malfunction when  
changing into reverse gear, these  
With MyCitroën Play or  
MyCitroën Drive  
warning lamps light up on the instrument panel,  
accompanied by the display of a message and  
an audible signal (short beep).  
Have it checked by a CITROËN dealer or a  
qualified workshop.  
For more information, refer to the  
General recommendations on the use  
of driving and manoeuvring aids.  
With the engine running, these systems allow  
views of your vehicle’s close surroundings to be  
displayed on the touch screen using one camera  
for Top Rear Vision and two cameras for 360  
Vision.  
Reversing camera  
The blue lines 1 indicate the general direction of  
the vehicle (the gap corresponds to the width of  
your vehicle including the mirrors).  
The red line 2 represents a distance of about  
30 cm beyond the edge of your vehicle's rear  
bumper.  
For more information, refer to the  
General recommendations on the use  
of driving and manoeuvring aids.  
The green lines 3 represent distances of about 1  
and 2 metres beyond the edge of your vehicle's  
rear bumper.  
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