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Driving -> Parking sensors for Your Citroen Ds4 SUV Second Generation (2021-2025)

Parking sensors  
Rear parking sensors  
This system indicates the proximity of an  
obstacle (person, vehicle, tree, gate, etc.) which  
comes within the field of detection of sensors  
located in the bumper.  
The system is switched on by engaging reverse  
gear. This is accompanied by an audible signal.  
The system is switched off when you exit  
reverse gear.  
Certain types of obstacle (stake, roadworks  
cone, etc.) detected initially will no longer be  
detected at the end of the manoeuvre due to  
the presence of blind spots.  
Audible assistance  
The proximity information is given by an  
intermittent audible signal, the frequency of which  
increases as the vehicle approaches the obstacle.  
The sound emitted by the speaker (right or left)  
indicates the side on which the obstacle is located.  
When the distance between the vehicle and  
the obstacle becomes less than approximately  
thirty centimetres, the audible signal becomes  
continuous.  
Visual assistance  
This supplements the audible signal by  
displaying bars in the multifunction screen  
which move progressively nearer to the vehicle.  
When the obstacle is near, the "Danger"  
symbol is also displayed in the screen.  
This function cannot, in any  
circumstances, take the place of the  
vigilance and responsibility of the  
driver.  
 
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Driving  
Front parking sensors  
Operating fault  
In addition to the rear parking sensors, the front  
parking sensors are triggered when an obstacle  
is detected in front and the speed of the vehicle  
is still below 6 mph (10 km/h).  
The front parking sensors are interrupted if  
the vehicle stops for more than three seconds  
in forward gear, if no further obstacles are  
detected or when the speed of the vehicle  
exceeds 6 mph (10 km/h).  
In the event of a malfunction of  
the system, when reverse gear  
is engaged this warning lamp  
Deactivation/Activation of the  
front and rear parking sensors  
is displayed in the instrument panel and/or a  
message appears in the screen, accompanied  
by an audible signal (short beep).  
Contact a CITROËN dealer or a qualified  
workshop.  
In bad weather or in winter, ensure  
that the sensors are not covered with  
mud, ice or snow. When reverse gear is  
engaged, an audible signal (long beep)  
indicates that the sensors may be dirty.  
When the vehicle is moving at a speed  
below 6 mph (10 km/h), certain sound  
sources (motorcycle, lorry, pneumatic  
drill, etc.) may trigger the audible  
The sound emitted by the speaker  
(front or rear) indicates whether the  
obstacle is in front or behind.  
The function is deactivated by pressing this button.  
The indicator lamp in the button comes on.  
Pressing this button again reactivates the  
function. The indicator lamp in the button goes  
off.  
signals of the parking sensor system.  
The function will be deactivated  
automatically if a trailer is being towed  
or a bicycle carrier is fitted (vehicle  
fitted with a towbar or bicycle carrier  
recommended by CITROËN).