2020 CITROEN C4 lock

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Locking the vehicle
Driving with the doors locked could make
it more difficult for the emergency services
to enter the passenger compartment in an
emergency.
As a safety precaution, remove the key from
the ignition or take the electronic key with you
when leaving the vehicle, even for a short
time.
Purchasing a second-hand vehicle
Have the key codes memorised by a
CITROËN dealer, to ensure that the keys in
your possession are the only ones able to
start the vehicle.
Proximity Keyless Entry
and Start
This is a Keyless Entry and Start system.
It enables automatic vehicle locking/unlocking
simply by detecting the electronic key.
As long as the driver has the electronic key
on their person, the vehicle unlocks as they
approach and locks when they walk away.
If the electronic key is present in an area
between 2 and 7 m from the vehicle for more
than 30 minutes, the system is deactivated to
preserve the battery.
Key recognition zones:


Zone A: welcome lighting on approaching
the vehicle (between 3 and 5 metres from the
vehicle).
Zone B: automatic locking on leaving the vehicle
(about 2
metres from the vehicle).
Zone C: automatic unlocking on approaching
the vehicle (between 1 and 2
metres from the
vehicle).
The automatic functions are configured via the Driving/Vehicle touch screen
menu.
Unlocking the vehicle

Selective unlocking is configured via the
Driving/Vehicle touch screen menu.
Selective unlocking is deactivated by default.
Complete unlocking
The vehicle (doors and boot) unlocks:
► Either automatically as the driver approaches
in zone
C, if the automatic functions are
activated.
►

Or by gently pressing the driver's door
handle.
Unlocking, and alarm deactivation (depending
on version), is confirmed by the flashing of the
direction indicators.
Depending on version, the door mirrors unfold.
If the electronic key remains around the
vehicle (zones A, B or C) for more than
15 minutes without action, the automatic
functions are deactivated. To unlock or lock
the vehicle, use the remote control or press
the driver's door handle.
If using the door handle does not lock/unlock
the vehicle, bring the electronic key closer
and repeat the desired action.
Selective unlocking
Driver’s door and fuel/charging flap
They unlock:
►

Either automatically when approaching the
driver

’s door, if the automatic functions are
activated.

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2► Or by gently pressing the driver's door
handle.
►

Once inside the vehicle, to unlock all
accesses, press the central locking button or pull
the opening control on any door

.
Locking the vehicle
Normal locking

With the doors and boot closed, the vehicle
locks:
►
Either automatically
, upon leaving zone B, if
the automatic functions are activated.
►

Or by gently pressing the driver's door
handle.
Locking is confirmed by the lighting of the
direction indicators, and by a double audible
signal when the vehicle is locked upon walking
away

.
The alarm does not activate when locking automatically from a distance (the
direction indicators do not light up).
It is not possible to lock the vehicle if the
electronic key is left inside the vehicle.
Deadlocking
Deadlocking renders the interior door
controls inoperative. It also deactivates
the central locking button.
The horn remains operational.
Never leave anyone inside the vehicle
when it is deadlocked.


► Gently press the driver's door handle to lock
the vehicle.
►

Press it again within 3
seconds to deadlock
the vehicle (confirmed by the temporary lighting
of the direction indicators).
A double audible signal indicates that the vehicle
is not deadlocked.
Advice
If one of the doors or the boot is still open
or if the electronic key for the Keyless
Entry and Start

system has been left inside
the vehicle, central locking will not take place.
If the vehicle is unlocked but the doors or
boot are not subsequently opened, the
vehicle will automatically lock itself again after
about 30
seconds. If the vehicle is fitted with
an alarm, it will be reactivated automatically.
The automatic door mirror folding/ unfolding function is configured via the
touch screen's
Driving/Vehicle menu.
As a safety measure, never leave the vehicle, even for a short time, without
taking the Keyless Entry and Start system’s
electronic key with you.
Be aware of the risk of theft of the vehicle if
the key is present in one of the defined areas
while the vehicle is unlocked.
In order to preserve the battery in the
electronic key and the vehicle's battery:
–

The unlocking
on approach function
(zone
C) automatically switches to hibernation
mode after several days (approximately one
week) without being used. To unlock the
vehicle, use the remote control or press on
one of the door handles. The next time the
vehicle is started, the automatic unlocking
and locking functions will be reactivated.
–

If the welcome lighting is triggered
several times in succession without the
vehicle subsequently being started, it will be
deactivated.
–


All "hands-free" functions switch to
hibernation mode after 21 days without being
used.

To restore these functions, unlock the
vehicle using the remote control and start the
engine.

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Electrical interference
The electronic key may not work if it is
close to an electronic device (e.g.
mobile
telephone (switched on or on standby), laptop
computer, strong magnetic fields). If this
occurs, move the electronic key away from
the electronic device.
Central locking



Manual
► Press this button to lock/unlock the vehicle
(doors and boot) from inside the passenger
compartment.
Central locking does not take place if any
of the doors are open.
When locking/deadlocking from the
outside
When the vehicle is locked or deadlocked
from the outside, the indicator lamp flashes
and the button is deactivated.
► After normal locking, pull one of the
interior door controls to unlock the vehicle.
►

After deadlocking, you must use the
remote control or the

Keyless Entry and Start
system to unlock the vehicle.
Automatic (anti-intrusion security)
The doors and boot lock automatically while
driving (speed above 6 mph (10
km/h)).
To deactivate/reactivate this function (activated
by default):
►

Press the button until a confirmation
message appears.
Transporting long or voluminous
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 sound
of the locks rebounding will be heard and an
alert will be displayed.
Back-up procedures
Lost keys, remote control,
electronic key
Go to 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, enabling a
new key to be ordered.
Complete unlocking/locking
of the vehicle with the key
Use this procedure in the following situations:
–
Remote control battery discharged.
–

Remote control malfunction.
–


V
ehicle battery discharged.
–

V
ehicle in an area subject to strong
electromagnetic interference.
In the first case, change the remote control
battery.
In the second case, reinitialise
the remote
control.
Refer to the corresponding sections.


► Insert the key in the door lock.
► T urn the key towards the front or the rear to
unlock or lock the vehicle.

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2If the vehicle is fitted with an alarm, it will
not be activated when locking with the
key.
If the alarm is activated, the siren sounds
when the door is opened; switch on the
ignition to stop it.
Central locking not
functioning
Use these procedures in the following cases:
– Central locking malfunction.
–

Battery disconnected or discharged.
In the event of a malfunction of the
central locking system, the battery must
be disconnected to ensure that the vehicle is
locked fully.
Front left-hand door
► Insert the key into the lock and turn it towards
the front or rear of the vehicle to lock and unlock
the door
.
Other doors
Unlocking
► Pull the interior door opening control.
Locking

► Open the doors.
► For the rear doors, check that the child lock
is not on.
Refer to the corresponding section.
►

Gently insert the key into the latch located in
the door lock, then turn the latch an eighth of a
turn towards the outside of the door

.
►

Close the doors and check from the outside
that the vehicle is locked.
Changing the battery
If the battery is flat, this warning lamp
comes on, accompanied by an audible
signal and the display of a message.
Battery type: CR2032/3 volts.
Without Keyless Entry and Start


With Keyless Entry and Start

► Unclip the cover by inserting a small
screwdriver in the slot and lift the cover .
►

Remove the flat battery from its housing.
►


Put the new battery in place, respecting the
polarity

. Start by inserting it into the contacts

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located in the corner, then clip the cover onto
the unit.
►
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.
This equipment contains a button type battery.
Do not swallow the battery. Risk of chemical
burns!
Swallowing the battery can cause serious
internal burning in only 2 hours and can be
fatal.
If batteries have been swallowed or inserted
into a part of the body, seek immediate
medical advice.
Keep new and used batteries out of the reach
of children.
If the battery compartment does not close
properly, stop using the product and keep it
out of the reach of children.
Risk of explosion if the battery is
replaced with an incorrect type!
Replace the battery with the same type.
Risk of explosion or leaking of
inflammable liquid or gas!
Do not use in/store in/place in an environment
where the temperature is extremely high or
where the pressure is extremely low due to
very high altitude.
Do not try to burn, crush or cut a used battery.
Reinitialising the remote
control
Following replacement of the battery or in
the event of a fault, it may be necessary to
reinitialise the remote control.
To reinitialise the remote control, visit a
CITROËN dealer or a qualified workshop.
Without Keyless Entry and Start

► Switch the ignition off.
► T urn the key to position 2 (Ignition on) .►

Immediately press the closed padlock button
for a few seconds.
►

Switch off the ignition and remove the key
from the ignition switch.
The remote control is now fully operational
again.
With Keyless Entry and Start

► Insert the mechanical key (incorporated into
the remote control) into the lock to open the
vehicle.
►

Place the electronic key against the back-up
reader on the steering column and hold it there
until the ignition is switched on.
►


W
ith a manual gearbox, place the gear lever
in neutral then fully depress the clutch pedal.
►

W
ith an automatic gearbox or drive
selector, while in mode

P
, depress the brake
pedal.
►

Switch on the ignition by pressing the
"

START/STOP" button.

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Access
2If the fault persists after reinitialisation, contact a
CITROËN dealer or a qualified workshop without
delay.
Doors
Opening
From outside
► After unlocking the vehicle or with the
"Keyless Entry and Start" system electronic key
in the recognition zone, pull the door handle.
From inside
► Pull the interior opening control of a door; this
unlocks the vehicle completely .
With selective unlocking activated:
– Opening the driver's door unlocks
the driver's door only (if the vehicle has not
already been completely unlocked).
–

Opening one of the passenger doors
unlocks the rest of the vehicle.
Closing
If a door is not properly closed, this
warning lamp comes on accompanied by
a message if the engine is running, and an
audible signal when the vehicle is travelling at
more than 6
mph (10 km/h).
Boot
Opening

► After unlocking the vehicle, press the opening
control and then lift the tailgate.
Closing
► Lower the tailgate using one of the interior
grab handles.
In the event of a malfunction or if you
experience difficulty opening or closing
the tailgate, have it checked by a CITROËN
dealer or a qualified workshop without delay,
to avoid the issue deteriorating and prevent
any risk of the tailgate dropping, potentially
causing serious injury.
Back-up release
To manually unlock the boot in the event of a
battery or central locking failure.
Unlocking
► Fold the rear seats to gain access to the lock
from inside the boot.


► Insert a small screwdriver into hole A of the
lock to unlock the boot.
►

Move the latch to the left.
Locking after closing
If the fault persists after closing again, the boot
will remain locked.
In the event of a fault with the central
locking system, it is essential to
disconnect the battery to lock the boot and so
ensure complete locking of the vehicle.
Alarm
(Depending on version)

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System which protects and provides a deterrent
against theft and break-ins.
Exterior perimeter monitoring
The system checks for opening of the vehicle.
The alarm is triggered if anyone tries to open a
door, the boot or the bonnet, for example.
Interior volumetric monitoring
The system checks for any variation in volume in
the passenger compartment.
The alarm is triggered if anyone breaks a
window, enters the passenger compartment or
moves inside the vehicle.
Self-protection function
The system checks whether any of its
components are out of service.
The alarm is triggered if the battery, the central
control or the siren wiring is put out of service or
damaged.
Work on the alarm system
Contact a CITROËN dealer or a qualified
workshop.
Locking the vehicle with full
alarm system
Activation
► Switch off the ignition and exit the vehicle.
► Lock or deadlock the vehicle using the
remote control or by pressing on the driver's
door handle.
When the monitoring system is active, the red
indicator lamp in the button flashes once per
second and the direction indicators come on for
about 2 seconds.
The exterior perimeter monitoring is activated
after 5 seconds and the interior volumetric
monitoring after 45 seconds.
The alarm does not activate when locking automatically from a distance.
If an opening (door, boot or bonnet) is not
properly closed, the vehicle is not locked,
but the exterior perimeter monitoring will be
activated after 45 seconds, at the same time
as the interior volumetric monitoring.
Deactivation
► Press the remote control unlocking
button.
or
►

Unlock the vehicle by pressing the driver
’s
door handle.
The monitoring system is deactivated: the
indicator lamp in the button goes off and the
direction indicators flash for about 2 seconds.
After unlocking using the remote
control
If the vehicle automatically locks itself again
(as happens if a door or the boot is not
opened within 30 seconds of unlocking), the
monitoring system is automatically activated.
Locking the vehicle
with exterior perimeter
monitoring only
Deactivate the interior volumetric monitoring to
avoid the unwanted triggering of the alarm, in
certain cases such as:
–

Slightly open window
.
–

W
ashing the vehicle.
–

Changing a wheel.
–


T
owing the vehicle.
–

T
ransport on a ship or ferry.
Deactivating interior volumetric
monitoring
► Switch off the ignition and within 10 seconds
press the alarm button until the indicator lamp is
on fixed.
►

Exit the vehicle.
►


Immediately lock the vehicle using the remote
control or by pressing on the driver's door
handle.

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2Only exterior perimeter monitoring is activated;
the red indicator lamp in the button flashes every
second.
To take effect, this deactivation must be
performed whenever the ignition is switched
off.
Reactivating interior volumetric
monitoring
► Deactivate exterior perimeter monitoring by
unlocking the vehicle using the remote control or
the "Keyless Entry and Start" system.
The indicator lamp in the button goes off.
►

Reactivate the full alarm system by locking
the vehicle using the remote control or by
pressing the driver

’s door handle.
The red indicator lamp in the button once again
flashes every second.
Triggering of the alarm
This is indicated by sounding of the siren
and flashing of the direction indicators for 30
seconds.
Depending on the country of sale, certain
monitoring functions remain active until the alarm
has been triggered eleven times consecutively.
When the vehicle is unlocked using the remote
control or the Keyless Entry and Start system,
rapid flashing of the red indicator lamp in the
button informs you that the alarm was triggered
during your absence. When the ignition is
switched on, this flashing stops.
Failure of the remote control
To deactivate the monitoring functions:
► Unlock the vehicle using the key in the front
left-hand door lock.
►

Open the door; the alarm is triggered.
►


Switch on the ignition; this stops the alarm.
The indicator lamp in the button goes off.
Locking the vehicle without
activating the alarm
► Lock the vehicle using the key (built-in the
remote control) in the front left-hand door lock.
Malfunction
When the ignition is switched on, the fixed
lighting of the red indicator lamp in the button
indicates a system malfunction.
Have it checked by a CITROËN dealer or a
qualified workshop.
Automatic activation
(Depending on version)
The system is activated automatically 2 minutes
after the last door or the boot is closed.
►

T
o avoid triggering the alarm on entering the
vehicle, first press the unlocking button on the
remote control or unlock the vehicle using the
"Keyless Entry and Start" system.
Electric windows
1. Left-hand front
2. Right-hand front
3. Right-hand rear
4. Left-hand rear
5. Deactivation of electric window controls
located by rear seats
Manual operation
► To open/close the window, press/pull the
switch without passing the point of resistance;
the window stops as soon as the switch is
released.
Automatic operation
► To open/close the window, press/pull the
switch past its resistance point: the window
opens/closes completely when the switch is
released.
Operating the switch again stops the movement
of the window.