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Driving -> Active Safety Brake with Collision Risk Alert and Intelligent emergency braking assistance for Your Citroen C4 Cactus SUV Second Generation (2018-2024)

Driving  
Operation of the cruise control can also  
be paused temporarily:  
– by pressing the brake pedal.  
– automatically, if the electronic stability  
control (ESC) system is triggered.  
► Press button 5 again to save the suggested  
speed.  
The value is immediately shown as the new  
speed setting on the instrument panel.  
Switching off  
► Turn the thumbwheel 1 to the "0” position: the  
cruise control information disappears from the  
screen.  
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Temporarily exceeding the  
programmed speed  
If needed (when overtaking, for example) it is  
possible to exceed the programmed speed by  
pressing the accelerator pedal.  
Cruise control is temporarily overridden and the  
programmed speed setting flashes.  
To return to the programmed speed, simply  
release the accelerator pedal.  
Once the vehicle has returned to the  
programmed speed, cruise control takes over  
again and the programmed speed setting stops  
flashing.  
Malfunction  
Modifying the cruise speed  
setting  
Cruise control must be active.  
To modify the cruise speed setting, based on the  
current speed of the vehicle:  
► Briefly press button 2 or 3 to change the  
value in steps of + or - 1 mph (km/h).  
► Press and hold button 2 or 3 to change the  
value in steps of + or - 5 mph (km/h).  
The display of dashes (flashing then fixed)  
indicates a malfunction with the cruise control  
system.  
Have it checked by a CITROËN dealer or a  
qualified workshop.  
Pressing and holding button 2 or  
3 results in a rapid change in the speed  
of the vehicle.  
When descending a steep hill, the cruise  
control system cannot prevent the  
vehicle from exceeding the programmed  
speed.  
You may have to brake to control the speed of  
your vehicle. In this case, the cruise control is  
automatically paused.  
To activate the system again, with the vehicle  
speed above 25 mph (40 km/h), press button  
4.  
Active Safety Brake with  
Collision Risk Alert and  
Intelligent emergency  
braking assistance  
As a precaution, we recommend setting  
a cruise speed fairly close to the current  
speed of your vehicle, to avoid any sudden  
acceleration or deceleration of the vehicle.  
To change the cruise speed setting using the  
speed suggested by the Speed Limit Recognition  
and Recommendation:  
► The suggested speed is displayed on the  
instrument panel.  
Refer to the General recommendations on the  
use of driving and manoeuvring aids.  
► Press button 5 once; a message is displayed,  
confirming the memorisation request.  
This system:  
85  
Driving  
– warns the driver that their vehicle is at risk of  
collision with the vehicle in front or a pedestrian.  
– reduces the vehicle's speed to avoid a  
collision or limit its severity.  
This system is comprised of three functions:  
– Collision Risk Alert.  
– Intelligent emergency braking assistance.  
– Active Safety Brake (automatic emergency  
braking).  
After an impact, the function  
automatically stops operating. Contact a  
CITROËN dealer or a qualified workshop to  
have the system checked.  
Operating conditions and  
limits  
The ESC system must not be faulty.  
The ASR system must not be deactivated.  
All passenger seat belts must be fastened.  
Driving at a steady speed on roads with few  
bends is required.  
Collision Risk Alert  
It warns the driver that their vehicle is at risk of  
collision with the vehicle in front or a pedestrian  
present in their traffic lane.  
In the following cases, deactivating the system  
via the vehicle's configuration menu is advised:  
– towing a trailer,  
Operation  
– carrying long objects on roof bars or roof rack,  
– with snow chains fitted,  
Depending on the degree of risk of collision  
detected by the system and the alert trigger  
threshold chosen by the driver, several different  
levels of alert may be triggered and displayed on  
the touch screen.  
– before using an automatic car wash, with the  
engine running,  
– before placing the vehicle on a rolling road in  
a workshop,  
The vehicle has a camera located at the top of  
the windscreen.  
This system does not avoid the need for  
vigilance on the part of the driver.  
This system is designed to assist the driver  
and improve road safety.  
It is the driver's responsibility to continuously  
monitor the state of the traffic, observing the  
driving regulations.  
– towed vehicle, engine running,  
– Following an impact to the windscreen close to  
the detection camera.  
The system takes account of the vehicle  
dynamics, the speed of your vehicle and the one  
in front, the environmental conditions and the  
operation of the vehicle (actions on the pedals,  
the steering wheel, etc.) to trigger the alert at the  
best moment.  
Level 1 (orange): visual alert only,  
indicating that the vehicle in front is very  
close.  
The message "Vehicle close" is displayed.  
Level 2 (red): visual and audible alert,  
indicating that a collision is imminent.  
The message "Brake!" is displayed.  
Level 3: in some cases, a vibration alert in the  
form of micro-braking can be given, confirming  
the risk of collision.  
The system is automatically deactivated  
after the use of the "space-saver" type  
spare wheel is detected, or if a fault with the  
lateral brake lamps is detected.  
As soon as the system detects a  
potential obstacle, it prepares the braking  
circuit in case automatic braking is needed.  
This may cause a slight noise and a slight  
sensation of deceleration.  
It is possible that warnings are not given,  
are given too late or seem unjustified.  
Consequently, always stay in control of your  
vehicle and be prepared to react at any time  
to avoid an accident.  
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Driving  
– The vehicle's speed is between 3 mph and  
53 mph (5 km/h and 85 km/h) when a moving  
vehicle is detected.  
Where the speed of your vehicle is too  
high approaching another vehicle, the  
first level of alert may not be displayed: the  
level 2 alert may be displayed directly.  
Important: the level 1 alert is not displayed  
when there is a stationary obstacle or when  
the "Close" trigger threshold has been  
selected.  
Active Safety Brake  
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This warning lamp flashes (for  
approximately 10 seconds) as soon as  
the function acts on the vehicle’s braking.  
With an automatic gearbox, in the event of  
automatic emergency braking until the vehicle  
comes to a complete stop, keep the brake  
pedal pressed down to prevent the vehicle from  
starting off again.  
Modifying the alert trigger threshold  
This threshold determines how you wish to be  
warned of the presence of a moving or stationary  
vehicle in front of you, or a pedestrian present in  
your traffic lane.  
The current threshold can be modified via the  
vehicle configuration menu.  
You can select one of three pre-defined  
thresholds:  
– "Distant",  
– "Normal",  
– "Close".  
The last threshold selected is memorised when  
the ignition is switched off.  
With a manual gearbox, in the event of automatic  
emergency braking until the vehicle comes to a  
complete stop, the engine may stall.  
The driver can maintain control of the  
vehicle at any time by sharply turning the  
steering wheel and/or sharply pressing the  
accelerator pedal.  
This function, also called automatic emergency  
braking, intervenes following the alerts if the  
driver does not react quickly enough and does  
not operate the vehicle's brakes.  
It aims to reduce the speed of impact or avoid a  
collision where the driver fails to react.  
Operation of the function may be felt by  
slight vibration in the brake pedal.  
If the vehicle comes to a complete stop, the  
automatic braking is maintained for 1 to 2  
seconds.  
Operation  
The system operates under the following  
conditions:  
– The vehicle's speed does not exceed 37 mph  
(60 km/h) when a pedestrian is detected.  
– The vehicle's speed does not exceed 50 mph  
(80 km/h) when a stationary vehicle is detected.  
Intelligent emergency  
braking assistance  
If the driver brakes, but not sufficiently to avoid a  
collision, this system will supplement the braking,  
within the limits of the laws of physics.  
This assistance will only be provided if you press  
the brake pedal.  
Deactivation / Activation  
By default, the system is automatically activated  
at every engine start.  
It is set via the Driving / Vehicle touch  
screen menu.  
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