2021 CITROEN C4 AIRCROSS key

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System which permits central unlocking or locking of the vehicle using the door lock or remotely. It is also used for the guide-me-home lighting and
starting the engine, as well as providing protection against theft.
Remote control key
Unfolding the key
F First press this button to unfold the key.
Unlocking the vehicle
Complete unlocking using
the remote control
F Press the open padlock to unlock the vehicle.
Unlocking using the key
F Turn the key to the front in the driver's door lock to unlock it.
Unlocking is confirmed by the interior
lighting which comes on for around
15
seconds and the direction indicators
which flash twice .
According to version, the door mirrors
unfold at the same time.
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F Press the open padlock once to unlock the driver's door only.
Selective unlocking using
the remote control
Selective unlocking is only available on
versions not fitted with deadlocking.
Selective unlocking is not available
using the key.
F

P

ress the open padlock again to unlock the
other doors and the boot. Unlocking is confirmed by illumination
of the interior lighting for about
15 seconds and the direction indicators,
which flash twice .
According to version, the door mirrors
unfold at the same time as the first
unlocking action.
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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 when
folding the key, there is a risk of
damage to the mechanism.
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
F First press this button to fold 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.
2
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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; see the
"Remote control" 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.
al
ways 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 the vehicle.
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, ...
-

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 the vehicle.
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 (see "Locking
/
unlocking from inside").
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With the Keyless Entry and Starting system,
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 cutout.
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.
al

ways 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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