2023 CITROEN C4 boot

2
Contents
 ■
Overview
 ■
Eco-driving
1Dashboard instrumentsDriver information 10
Instrument panels 10
Head-up display 12
Warning and indicator lamps 13
Indicators 19
Manual test 24
Total distance recorder 25
Lighting dimmer 25
Trip computer 25
5-inch touch screen 27
10-inch touch screen 27
Remotely operable additional functions
(Electric)
30
2AccessElectronic key with remote control function and
built-in key 32
Proximity Keyless Entry and Start 34
Central locking 36
Back-up procedures 37
Doors 39
Boot 40
Alarm 40
Electric windows 42
Sunroof 43
3Ease of use and comfortFront seats 45
Steering wheel adjustment 47
Heated steering wheel 47
Mirrors 48
Rear bench seat 49
Heating and Ventilation 51
Manual air conditioning 52
Dual-zone automatic air conditioning 53
Front demisting - defrosting 57
Heated windscreen 58
Rear screen demisting/defrosting 58
Temperature pre-conditioning (Electric) 58
Interior fittings 59
Courtesy lamps 62
Interior ambient lighting 63
Boot fittings 63
4Lighting and visibilityLighting control stalk 65
Direction indicators 66
Automatic illumination of headlamps 67
Headlamp beam height adjustment 67
Guide-me-home and welcome lighting 67
Automatic lighting systems - General
recommendations
68
Automatic headlamp dipping 69
Cornering lighting 70
Wiper control stalk 70
Intermittent wipers 71
Automatic wipers 72
Changing a wiper blade 73
5SafetyGeneral safety recommendations 74
Hazard warning lamps 74
Horn 75
Pedestrian horn (Electric) 75
Emergency or assistance 75
Electronic stability control (ESC) 77
Seat belts 79
Airbags 82
Child seats 84
Deactivating the front passenger airbag 86
ISOFIX child seats 87
i-Size child seats 89
Installing child seats 90
Child lock 92
6DrivingDriving recommendations 93
Starting / Switching off the engine with the key 95
Starting/Switching off the engine with Keyless
Entry and Start
96
Manual parking brake 98
Electric parking brake 99
6-speed manual gearbox 101
Automatic gearbox 101
Drive selector (Electric) 103
Driving modes 104
Hill start assist 105
Gear shift indicator 106
Stop & Start 106
Tyre under-inflation detection 108
Driving and manoeuvring aids - General
recommendations
109
Shortcuts for driving aids 111
Road signs recognition 111
Speed limiter 11 5
Cruise control - Specific recommendations 11 6
Cruise control 11 7
Highway Driver Assist 11 8
Adaptive cruise control 11 9
Lane positioning assist 123
Lane keeping assist 128
Blind spot monitoring 131
Active Safety Brake with Collision Risk Alert
and Intelligent emergency braking assistance
132
Distraction detection 136

8
Eco-driving
Eco-driving
Eco-driving refers to a range of everyday
practices that allow the motorist to optimise
the vehicle's energy consumption (fuel and/or
electricity) and CO
2 emissions.
Optimise your use of the gearbox
With a manual gearbox, move off gently and
change up promptly. While accelerating, change
up early.
With an automatic gearbox, favour automatic
mode. Do not depress the accelerator pedal
heavily or suddenly.
The gear shift indicator prompts you to engage
the most suitable gear. Whenever this indication
is displayed on the instrument panel, follow it
straight away.
With an automatic gearbox, this indicator
appears only in manual mode.
Drive smoothly
Maintain a safe distance between vehicles, use
engine braking rather than the brake pedal and
press the accelerator gradually. These practices
help to save on energy consumption, reduce
CO
2 emissions and decrease general traffic
noise.
When the traffic is flowing smoothly, select the
cruise control.
Control the use of electrical equipment
Before moving off, if the passenger compartment
is too warm, ventilate it by opening the windows
and air vents before using the air conditioning.
At speeds above 31
mph (50 km/h), close the
windows and leave the air vents open.
Consider using equipment that can help keep
the temperature in the passenger compartment
down (e.g.
sunroof blind, window blinds).
Unless automatically regulated, switch off the air
conditioning as soon as the desired temperature
has been reached.
Switch off the demisting and defrosting functions,
if they are not managed automatically.
Switch off the heated seat as soon as possible.
Adapt your use of the headlamps and/or
foglamps to the level of visibility, in accordance
with current legislation in the country in which
you are driving.
Avoid running the engine before moving off,
particularly in winter (other than in severe wintry
conditions: temperature below -23°C). The
vehicle will warm up much faster while driving.
As a passenger, avoid connecting your
multimedia devices (e.g.
film, music, video
game) to help reduce the consumption of energy.
Disconnect all portable devices before leaving
the vehicle.
Limit the causes of excess consumption
Spread loads throughout the vehicle. Place the
heaviest items in the boot as close as possible to
the rear seats. Limit the loads carried in the vehicle and
minimise wind resistance (e.g.
roof bars, roof
rack, bicycle carrier, trailer). Preferably, use a
roof box.
Remove roof bars and roof racks after use.
At the end of winter, remove snow tyres and refit
summer tyres.
Comply with the servicing instructions
Check tyre pressures regularly, with the tyres
cold, referring to the label in the door aperture on
the driver's side.
Carry out this check in particular:
–

before a long journey
.
–

at each change of season.
–


after a long period out of use.
Do not forget the spare wheel and, where
applicable, the tyres on your trailer or caravan.
Have your vehicle serviced regularly (e.g.

engine
oil, oil filter, air filter, passenger compartment
filter, etc.). Observe the schedule of operations in
the manufacturer's service schedule.
With a BlueHDi Diesel engine, if the SCR system
has a fault, your vehicle will emit pollution. Visit
a CITROËN dealer or a qualified workshop
as soon as possible to restore your vehicle's
nitrogen oxide emissions to legal levels.
When filling the fuel tank, do not continue after
the third cut-out of the nozzle, to avoid overflow.
You will only see the fuel consumption of your
new vehicle settle down to a consistent average
after the first 1,900 miles (3,000 kilometres).

14
Dashboard instruments
System malfunction (Electric)Fixed.
A fault involving the electric motor or
traction battery has been detected.
Carry out (1) and then (2).
Cable connected (Electric)Fixed when the ignition is switched on.
The charging cable is connected to the
vehicle's connector.
Fixed when the ignition is switched on,
accompanied by a message.
It is not possible to start the vehicle while the
charging cable is connected to the vehicle’s
connector.
Disconnect the charging cable and close the
flap.
12 V battery chargeFixed.
The battery charging circuit is faulty
(e.g.

dirty terminals, loose or severed alternator
belt).
Carry out (1).
If the electric parking brake stops working,
immobilise the vehicle:
►

With the manual gearbox, engage a gear
.
►

With the automatic gearbox or drive selector
,
fit the chock against one of the wheels.
Clean and tighten the terminals. If the warning
lamp does not go off when the engine is started,
carry out (2).
BrakingFixed.
The brake fluid level in the braking circuit
has dropped significantly.
Carry out (1), then top up with fluid that complies
with the manufacturer's recommendations. If the
problem persists, carry out (2).
Fixed.
The electronic brake force
distribution

(EBFD) system is faulty.
Carry out (1) and then (2).
Manual parking brake (depending on
version)
Fixed.
The parking brake is applied or not
properly released.
Fixed.
The parking brake is applied or not
properly released.
Electric parking brakeFixed.
The electric parking brake is applied.
Flashing.
Application/release is faulty.
Carry out (1): park on flat ground (on a level
surface).
With a manual gearbox, engage a gear.
With an automatic gearbox or drive selector,
select mode
P.
Switch off the ignition and carry out (2).
Door(s) openFixed, associated with a message
identifying the access.
An audible signal supplements the alert if the
speed is higher than 6 mph (10
km/h).
A door or the boot is not properly closed.
Seat belts not fastened/unfastenedFixed or flashing, accompanied by an
increasing audible signal.
A seat belt has not been fastened or has been
unfastened.
Orange warning/indicator lamps
Service
Temporarily on, accompanied by the display of a message.
One or more minor faults, for which there is/are
no specific warning lamp(s), have been detected.
Identify the cause of the fault using the message
displayed on the instrument panel.
You may be able to deal with some faults
yourself, such as changing the battery in the
remote control.
For other faults, such as with the tyre under-
inflation detection system, carry out (3).
Fixed, accompanied by the display of a
message.
One or more major faults, for which there is/are
no specific warning lamp(s), have been detected.
Identify the cause of the fault using the message
displayed on the instrument panel, then carry
out (3).

32
Access
Electronic key with
remote control function
and built-in key
Remote control function

The remote control can be used to perform
the following remote functions (depending on
version):
–
Unlocking/Locking/Deadlocking the vehicle.
–


Unlocking and partial opening of the boot.
–


Remote operation of lighting.
–


Folding/Unfolding the door mirrors.
–


Activating/Deactivating the alarm.
–


Locating the vehicle.
–


Opening/Closing the windows.
–


Closing the sunroof.
–


Activating the vehicle’
s electronic immobiliser.
Back-up procedures allow the vehicle to be
locked/unlocked in the event of a failure of the
remote control, the central locking, the battery,
etc. For more information on the Back-up
procedures, refer to the corresponding section.
Built-in key
The key built into the remote control can be
used for the following operations, depending on
version:
–

Locking/Unlocking the vehicle.
–


Activation/Deactivation of the manual child
lock.
–


Activation/Deactivation of the front passenger
airbag.
–


Back-up Unlocking/Locking of the doors.
–


Switching on the ignition and starting/switching
off the engine.
W

ithout Keyless Entry and Start


► To unfold or fold the key, press the button.
With Keyless Entry and Start


► To eject the key or put it back in place, pull
and hold the button.
Once the built-in key is ejected, always
keep it with you to be able to carry out
the corresponding back-up procedures.
Unlocking the vehicle
With Touch screen BLUETOOTH audio
system or MyCitroën Play
Selective unlocking is configured in the
Driving touch screen menu.
With MyCitroën Drive
Selective unlocking is configured in the
Vehicle touch screen menu.
With MyCitroën Drive Plus
Selective unlocking is configured in the
Settings > Vehicle touch screen
application.
Complete unlocking
► Press the unlocking button.

33
Access
2Selective unlocking
Driver's door
► Press the unlocking button.
The driver's door and the fuel filler flap are
unlocked (Petrol or Diesel).
The driver's door and the charging flap are
unlocked (Electric).
►

Press it
again to unlock the other doors and
the boot.
The charging nozzle can be unplugged on the
second press.
Complete or selective unlocking, and alarm
deactivation (depending on version), is confirmed
by the flashing of the direction indicators.
Depending on version, the door mirrors unfold.
Unlocking and partial opening of the
boot
► Press this button for more than one
second to unlock the boot. The boot
opens slightly.
This action unlocks the vehicle first.
Locking the vehicle
Normal locking
► Press the locking button.
The locking, and the activation of the alarm
depending on version, is confirmed by the
lighting of the direction indicators.
Depending on version, the door mirrors fold.
An access (door or boot) that is not properly closed prevents locking of the
vehicle. However, if the vehicle is fitted with
an alarm, it will be activated after 45
seconds.
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.
Deadlocking
Deadlocking renders the interior door
controls inoperative. It also disables the
central locking button.
The horn remains operational.
Never leave anyone inside the vehicle
when it is deadlocked.
►

Press the locking button.
►


Press the locking button again within 3
seconds to deadlock the vehicle (confirmed by
the temporary lighting of the direction indicators).
For the vehicles equipped with the Proximity
Keyless Entry and Start system, a double
audible signal indicates that the vehicle is not
deadlocked.
With MyCitroën Drive Plus, depending on
version, the activation/deactivation of the
lock audible signal is configured in the
Settings
> Vehicle touch screen application.
Opening / Closing the
windows
Opening the windows
► Press the unlocking button for more
than 3 seconds.
Depending on version, the windows stop when
the button is released or by pressing the button
a second time.
Closing the windows and sunroof
(depending on version)
► Press the locking button for more than
3 seconds.
Depending on version, the windows and the
sunroof stop when the button is released or by
pressing the button a second time.
Ensure that no person or object could
prevent the correct closing of the
windows and sunroof.
If, on versions with alarm, you want to
leave the windows and/or sunroof partially
open, you must first deactivate the interior
volumetric alarm protection.
For more information on the Alarm, refer to
the corresponding section.
Remote lighting of the
lamps
(Depending on version)

35
Access
2Unlocking the vehicle

With Touch screen BLUETOOTH audio
system or MyCitroën Play
Selective unlocking is configured in the
Driving touch screen menu.
With MyCitroën Drive
Selective unlocking is configured in the
Vehicle touch screen menu.
With MyCitroën Drive Plus
Selective unlocking is configured in the
Settings > Vehicle touch screen
application.
Complete unlocking
The vehicle (doors and boot) unlocks
automatically as the driver approaches in zone
C, if the automatic functions are activated.
Depending on version, you can also unlock
the vehicle by gently pressing the driver's door
handle or the button on the boot.
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,
depending on version, 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
It operates automatically when approaching
the driver’s door, if the automatic functions are
activated.
Depending on version, it can also operate by
gently pressing the driver's door handle.
The driver's door and the fuel filler flap are
unlocked (Petrol or Diesel).
The driver's door and the charging flap are
unlocked (Electric).
►

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

.
Selective unlocking of the tailgate
The tailgate unlocks automatically as you
approach the rear of the vehicle.
►
Press the tailgate control to open the boot.
The doors remain locked.
Locking the vehicle
With MyCitroën Drive Plus
Depending on version, the activation/
deactivation of the lock audible signal is
configured in the Settings
> Vehicle touch
screen application.
Normal locking
With the doors and boot closed, the vehicle
locks automatically upon leaving zone B, if the
automatic functions are activated.


Depending on version, you can also lock the
vehicle 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).

36
Access
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
tailgate are not subsequently opened, the
vehicle will automatically lock itself again after
about 30
seconds. If fitted to the vehicle, the
alarm is automatically reactivated (if
previously activated).
Automatic folding/unfolding of the door mirrors is configured in the touch screen.
For more information on Mirrors, refer to the
corresponding section.
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.
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.

37
Access
2Central 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.
If 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.