key Citroen C4 AIRCROSS RHD 2017 1.G User Guide
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Locking the vehicle
F Turn the key to the rear in the driver's door lock to lock it.
Normal locking using the remote 
control
F Press the closed padlock to lock the vehicle completely.
If one of the doors or the boot is still 
open, the central locking does not take 
place.
When the vehicle is locked, if it is 
unlocked inadvertently, it will lock itself 
again automatically after a certain time 
unless a door is open.
Normal locking using the key
Locking is confirmed by the direction 
indicators which flash once.
According to version, the door mirrors 
fold at the same time. 
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If you do not press the button, there is a 
risk of damaging the remote control.
Deadlocking using the remote 
control
F Press the closed padlock to lock the vehicle completely.
F
 
P
ress the closed padlock again within five 
seconds to deadlock the vehicle.
Folding the key
Deadlocking renders the exterior and 
interior door controls inoperative.
It also deactivates the manual central 
control button.
Therefore, you should never leave 
anyone inside the vehicle when it is 
deadlocked. Deadlocking is confirmed by the 
direction indicators, which flash 
three
 
times
.
According to version, the door mirrors 
fold at the same time. F  
P
 ress this button before folding the key. 
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"Keyless Entry and Starting" system
Selective unlocking
F With the electronic key on your person, press button B once to unlock only the 
driver's door, then pull on the door handle 
to open.
F
 
P
 ress button B again to unlock the vehicle 
completely.
System that allows the locking, unlocking 
and starting of the vehicle while keeping the 
electronic key on your person.
It can also be used as a remote control.
For more information on the Remote control 
key , refer to the corresponding section.
Unlocking the vehicle
Complete unlocking
F With the electronic key on your person and 
in one of the defined zones A , press one 
of the buttons B or C to unlock the vehicle, 
then pull on the handle to open the door.
 Y
our passengers can also open their 
doors, as soon as the electronic key is in 
one of the defined zones. Unlocking is confirmed by an audible 
signal and the direction indicators which 
flash twice
.
The door mirrors unfold at the same 
time.
Selective unlocking is only available on 
versions not fitted with deadlocking.
For security, the detection zones in 
which the electronic key is operational 
have a radius of about 70 cm around 
each opening button. 
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Locking the vehicle
Locking
F With the key in one of the defined zones A, 
press one of the buttons B or C .
Deadlocking
Locking is confirmed by an audible 
signal and the direction indicators, 
which flash once.
The door mirrors fold at the same time. F
 
W
 ith the electronic key in one of the 
defined zones A , press button B or C to 
lock the vehicle.
F  
W
 ithin five seconds, press button B or C 
again to deadlock the vehicle.
Locking is confirmed by two audible 
signals and by the direction indicators 
which flash three times .
The door mirrors unfold at the same 
time.
Always ensure that you have the 
electronic key on your person 
before locking the vehicle: in some 
circumstances, it is possible to lock 
the vehicle without the presence of the 
electronic key having been detected 
inside the vehicle. The operating mode must be "OFF". 
With Stop & Start, if the engine is in 
Stop mode, the vehicle cannot be 
locked. 
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Emergency procedure with the Keyless Entry and Starting 
system
Unlocking
F Turn the key towards the front in the driver's door lock to unlock it.
Emergency unlocking/locking 
using the integral key
The integral key is used to lock and unlock the 
vehicle when the electronic key cannot operate:
-
 
c
 ell battery flat, vehicle battery discharged 
or disconnected, etc.
-
 
v
 ehicle located in an area with strong 
electro-magnetic signals.
F
 
P
 ull and hold button 1 , to extract the 
integral key 2 .Locking
F Turn the key towards the rear in the driver's 
door lock to lock it.
The emergency key allows you to lock 
or unlock the driver's door only.
To lock or unlock the other doors, use 
the interior controls.
For more information on Locking / 
unlocking from inside , refer to the 
corresponding section. 
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With the Keyless Entry and Starting system, 
a  message appears in the instrument panel 
when replacement of the battery is needed.
Changing the batteries
Do not throw the remote control 
batteries away, they contain metals 
which are harmful to the environment.
Take them to an approved collection 
point.Remote control key
Battery ref.: CR1620 / 3 volts.
Electronic key
Battery ref.: CR2032 / 3 volt.
F
 
U
nclip the cover using a small screwdriver at the cut-out.
F
 
L
ift off the cover.
F
 
R
emove the flat battery from its location.
F
 
F
it the new battery into its location observing the original direction of fitment.
F
 
C
lip the cover onto the casing. Observe the polarity when fitting the 
cell battery, as it could explode.
Always replace the cell battery with one 
that is identical or of equivalent type.
When the housing is open, take car to 
protect it from water and dust. 
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Lost electronic key
Visit a CITROËN dealer with the vehicle's registration document and your personal identification documents and if possible the key code label.
The CITROËN dealer will be able to retrieve the key code and the transponder code required to order a new key.
Electronic key
The electronic key is a sensitive system; do not operate it while it is in your pocket as there is a possibility that it may unlock the vehicle, without 
you being aware of it.
Do not repeatedly press the buttons of your electronic key out of range and out of sight of your vehicle. You run the risk of stopping it from 
working and the remote control would have to be reinitialised.
The electronic key cannot operate as a remote control when it is in the reader or even when the ignition is switched on.
Locking the vehicle
Driving with the doors locked may make access to the passenger compartment by the emergency services more difficult in an emergency.
As a safety precaution, never leave children alone in the vehicle, even for a very short time.
In all cases, take the remote control or electronic key (if Keyless Entry and Starting) with you when leaving the vehicle.
Electrical interference
The Keyless Entry and Starting electronic key may not operate if close to certain electronic devices: telephone, laptop computer, strong 
magnetic fields, ...
Anti-theft protection
Do not make any modifications to the electronic engine immobiliser system; this could cause malfunctions.
Don't forget to turn the steering to engage the steering lock.
When purchasing a second-hand vehicle
Have all of the keys in your possession paired by a CITROËN dealer, to ensure that only your keys allow your vehicle to be unlocked and 
started. 
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Opening
Doors
From outside
F After unlocking the vehicle using the remote control or the key, pull the door 
handle.
Closing
From inside
F Pull the front or rear door lever to open the d o o r. If a door is not closed correctly, this symbol 
comes on in the instrument panel screen until 
the door concerned is closed.
On the driver's side, this action on the door 
lever unlocks the door if it was locked.
On the passenger's side or for the rear doors, 
the door must first be unlocked manually if it 
was locked.
For more information on Locking / unlocking 
from inside and in particular the individual 
controls, refer to the corresponding section. 
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Locking / unlocking from inside
Central locking control
Locking
F Press the front of button A to lock the vehicle.
Unlocking
F Press the rear of button A to unlock the vehicle.
Individual controls
This control can also be used to lock the front 
passenger's door and the rear doors in the 
event of a failure with the central locking. To 
do this:
F
 
O
 pen the door in question.
F
 
P
 ivot the interior control B towards the 
front, then close the door.
Locking the front and rear doors
F Pivot the interior control B towards the  front.
System which provides full manual locking or 
unlocking of the doors and boot from the inside.
Unlocking the front and rear 
doors
F Pivot the interior control B towards the rear.
It is possible to lock the vehicle with a 
passenger door open, using using the 
individual locking controls: ensure that 
you have the key before closing the 
passenger door. 
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For all work on the alarm system, 
contact a CITROËN dealer or a 
qualified workshop.
Alarm*System which protects and provides a deterrent against theft and break-ins. It provides the following types of monitoring:
- perimeter
The system checks for any opening of the vehicle.
The alarm is triggered if anyone tries to open a 
door, the boot, the bonnet, etc.
- volumetric
The system checks for any variation in the 
volume of the passenger compartment.
The alarm is triggered if anyone breaks a 
window, enters the passenger compartment or 
moves inside the vehicle.
- tilt
The system checks for any change in the 
position of the vehicle.
The alarm is triggered if the vehicle is lifted, 
moved or knocked.
Self-protection function
The system checks for the putting out of 
service of its components.
The alarm is triggered if the battery, the central 
control or the siren wiring are put out of service 
or damaged.
Locking the vehicle with full 
alarm system
Activation
F Switch off the ignition (OFF mode if your 
vehicle has the Keyless Entry and Starting 
syste m).
F
 
R
 emove the key from the ignition switch, 
if your vehicle does not have the "Keyless 
Entry and Starting" system.
F
 
L
 eave the vehicle, and close all the doors 
and the bonnet.
F
 
P
 ress the locking button on the remote 
control or one of the door or boot buttons 
if your vehicle has the "Keyless Entry and 
Starting" system.
Deactivation
Do one of the following to deactivate the alarm:
F  P ress the unlocking button on the remote 
control or one of the door or boot buttons 
if your vehicle has the "Keyless Entry and 
Starting" system.
F
 
S
 witch on the ignition (ON mode if your 
vehicle has the "Keyless Entry and 
Starting" system).
F
 
O
 pen a door or the boot while the system is 
being activated.
The alarm system is deactivated: the indicator 
lamp  A goes off.
The alarm is being activated: the indicator 
lamp 
A flashes rapidly accompanied by 
an intermittent audible signal for about 
20
 s
 econds.
Once the 20 seconds have expired, the 
system is active . The audible signal stops and 
the indicator lamp in the button flashes slowly.
* Depending on equipment. 
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