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Access -> Back-up procedures for Your Citroen C4 Cactus SUV Second Generation (2018-2024)

Access  
When locking/deadlocking from the  
outside  
When the vehicle is locked or deadlocked  
from the outside, the indicator lamp flashes  
and the button is inoperative.  
► After normal locking, pull one of the  
interior door controls to unlock the vehicle.  
► After deadlocking, it is necessary to use  
the remote control, Keyless Entry and Starting  
or the integral key to unlock the vehicle.  
► Insert the key in the door lock barrel.  
Back-up procedures  
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► Turn the key towards the front of the vehicle  
to unlock it, or towards the rear to lock it.  
► Turn the key rearwards again within 5  
seconds to deadlock the vehicle.  
For versions without alarm, the lighting of the  
direction indicators for a few seconds confirms  
that the procedure has completed correctly.  
Lost keys, remote control,  
electronic key  
Visit a CITROËN dealer with the vehicle's  
registration certificate, your personal  
identification documents and if possible, the label  
bearing the key code.  
The CITROËN dealer will be able to retrieve the  
key code and the transponder code required to  
order a new key  
If your vehicle is fitted with an alarm, this  
function will not be activated when  
locking with the key.  
If the alarm is activated, the siren sounds on  
opening the door; switch on the ignition to  
stop it.  
Automatic (anti-intrusion  
security)  
The doors and boot lock automatically when  
driving (speed above 6 mph (10 km/h)).  
To deactivate/reactivate this function (activated  
by default):  
Total unlocking/locking of  
the vehicle with the key  
Use these procedures in the following cases:  
– remote control cell battery flat,  
– remote control fault,  
Central locking not  
functioning  
Use these procedures in the following cases:  
– central locking fault,  
► Press the button until an audible signal is  
heard and a message appears in the screen.  
– vehicle in an area subject to strong  
electromagnetic interference.  
Transporting long or bulky objects  
Press the central locking control to drive  
with the boot open and the doors locked.  
Otherwise, every time the speed of the  
vehicle exceeds 6 mph (10 km/h), the locks  
will rebound and an alert will appear.  
Pressing the central locking button unlocks  
the vehicle.  
In the first case, you can also replace the remote  
control cell battery.  
In the second case, you can also reinitialise the  
remote control.  
– battery disconnected or discharged.  
In the event of a malfunction with the  
central locking system, the battery must  
be disconnected to lock the boot and thus  
ensure that the vehicle is locked fully.  
Refer to the corresponding sections.  
Driver's door  
Above 6 mph (10 km/h), this unlocking is  
temporary.  
► Turn the key towards the rear of the vehicle  
to lock it, or towards the front to unlock it.  
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Access  
Passenger doors  
Unlocking  
► Pull the interior door opening handle.  
Application  
► Open the door.  
► On the rear doors, check that the child lock  
is not activated. Refer to the corresponding  
section.  
Without Keyless Entry and Starting ‒  
Battery type: CR2032 / 3 volts.  
► Insert the new battery, observing the polarity,  
and clip the cover onto the housing.  
► Reinitialise the remote control.  
For more information on Reinitialising the  
remote control, refer to the corresponding  
section.  
Do not throw remote control batteries  
away, as they contain metals that are  
harmful to the environment. Take them to an  
approved disposal point.  
Reinitialising the remote  
control  
With Keyless Entry and Starting ‒ Battery  
Following replacement of the battery or in  
the event of a fault, it may be necessary to  
reinitialise the remote control.  
type: CR2032 / 3 volts.  
Without Keyless Entry and Starting  
► Remove the black cap on the edge of the  
door, using the key.  
► Without forcing, insert the key into the  
aperture; then, without turning it, move the latch  
sideways towards the inside of the door.  
► Remove the key and refit the black cap.  
► Close the doors and check from the outside  
that the vehicle is locked.  
► Unclip the cover by inserting a small  
screwdriver in the slot and raise the cover.  
► Remove the discharged battery from its  
housing.  
Changing the battery  
If the battery is discharged, this warning  
lamp comes on, accompanied by an  
► Switch off the ignition.  
► Return the key to position 2 (Ignition on).  
audible signal and an onscreen message.  
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Access  
► Immediately press the closed padlock button  
for a few seconds.  
► Switch off the ignition and remove the key  
from the switch.  
If the fault persists after reinitialisation, contact a  
CITROËN dealer or a qualified workshop without  
delay.  
Boot  
2
Opening  
The remote control is now fully operational  
again.  
Doors  
With Keyless Entry and Starting  
Opening  
From outside  
► After unlocking the vehicle or with the  
Keyless Entry and Starting electronic key in the  
recognition zone, pull the door handle.  
From inside  
► Pull the interior opening control of a door; this  
► With the vehicle unlocked or with the  
unlocks the vehicle completely.  
Keyless Entry and Starting electronic key in the  
recognition zone, press the centre of the tailgate  
opening control.  
The interior opening control on a rear  
door does not work if the child lock is on.  
For more information on the Child Lock, refer  
to the corresponding section.  
► Insert the mechanical key (incorporated into  
the remote control) into the lock to open the  
vehicle.  
► Lift the tailgate.  
For more information on the Remote control or  
on the Keyless Entry and Starting, please refer  
to the corresponding section.  
► Place the electronic key against the back-up  
reader under the parking brake lever and hold it  
there until the ignition is switched on.  
► Switch on the ignition by pressing the  
"START/STOP" button.  
With a manual gearbox, place the gear lever  
in neutral then fully depress the clutch pedal.  
With an automatic gearbox, while in mode  
P, depress the brake pedal.  
Closing  
If there is a fault or if it is difficult to move  
the tailgate when opening or closing it,  
have it checked as soon as possible by a  
CITROËN dealer or a qualified workshop to  
prevent the problem becoming worse, and  
potentially causing the tailgate to drop and  
thereby inflicting serious injuries.  
When a door is not closed correctly:  
with the engine running or the vehicle  
moving (speed below 6 mph (10 km/h)), a  
message appears in the screen.  
with the vehicle moving (speed above 6  
mph (10 km/h)), a message appears in the  
screen, accompanied by an audible signal.  
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