2023 CITROEN C4 airbag

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

4
Overview
Presentation
These illustrations and descriptions are intended
as a guide. The presence and location of certain
elements may vary depending on the version or
trim level.
Instruments and controls

1.Courtesy lamp/Front reading lamps
Emergency and assistance call buttons
Sunroof
Warning lamps display for seat belts and
front passenger airbag
2. Interior rear view mirror
3. Head-up display
4. Instrument panel
5. Fusebox
6. Electric windows
Electric door mirrors
7. Bonnet release
8. Smart Pad Support Citroën
9. Dashboard drawer
10. Glove box
Centre console

1.5-inch touch screen with Touch screen
BLUETOOTH audio system
or
10-inch touch screen with MyCitroën Play,
MyCitroën Drive or MyCitroën Drive Plus
2. Touch screen on/off and volume control
With MyCitroën Play or MyCitroën Drive:
Direct access to the Driving or Vehicle
menu
Access to the touch screen menus
With MyCitroën Drive Plus:
Access to the Shortcuts for driving aids
Access to the HOME pages
3. Hazard warning lamps
4. Central locking
5. Switching the engine on/off
6. Air conditioning
Heated seats
7. USB sockets (type A/type C)
8. Storage compartment or Wireless
smartphone charger
9. Gearbox or drive selector
10. Choice of driving mode
11 . Access to the Energy menu
12. Electric parking brake

5
Overview
Steering-mounted controls

1.External lighting controls/Direction indicators/
Select the instrument panel display mode
2. Wiper controls/Screenwash/Trip computer
3. Automatic gearbox control paddles
4. Controls for Cruise control/Speed limiter/
Adaptive cruise control
A. Increase/Decrease the speed setting
Display and adjustment of the distance
setting to the vehicle in front (Adaptive cruise
control)
B. Select/Deselect the cruise control function C.
Start/Pause of the Speed limiter or Cruise
control with the speed setting saved
Confirmation of vehicle restart after automatic
stop (Adaptive cruise control with Stop&Go
function)
D. Select/Deselect the speed limiter function
E. Activation of the Speed limiter or Cruise
control with the speed setting saved
Use the speed suggested by the Road signs
recognition system
5. Horn/Driver front airbag
6. Audio system controls
F. Select previous/next media
G. Decrease/Increase volume
H. Access the Telephone menu
Manage calls
I. Voice commandsSide controls



1. Headlamp beam height adjustment 2.
Lane keeping assist
3. Alarm
4. Heated windscreen
5. Heated steering wheel
6. Tailgate opening (C4 X)
7. Head-up display controls
Electric motor

1.Charging connectors
2. Traction battery
3. Accessory battery
4. Heat pump
5. On-board charger
6. Electric motor
7. Charging cable
The charging connectors 1 enable 3
types of
charging:

6
Overview
– Domestic charging in mode 2 using a
domestic socket and associated charging cable
7
.
–

Accelerated charging in mode 3 using an
accelerated charging unit (W

allbox).
–

Superfast charging in mode 4 using a fast
public charger

.
The 400
V traction battery 2 uses Lithium-Ion
technology. It stores and supplies the energy
required for the operation of the electric motor,
air conditioning and heating. Its charge level is
represented by an indicator and a reserve power
warning lamp on the instrument panel.
The 12
V accessory battery 3 powers the
vehicle’s conventional electrical system. It is
recharged automatically by the traction battery
via the on-board charger.
The heat pump
4 provides passenger
compartment heating and regulates traction
battery and on-board charger cooling.
The on-board charger 5 manages the domestic
charging
(mode 2) and accelerated charging
(mode 3) of the traction battery as well as the
recharging of the 12
V accessory battery.
The electric motor
6 provides propulsion in
accordance with the selected driving mode and
driving conditions. It recovers energy during
vehicle braking and deceleration
phases.
Labels
“Ease of use and comfort - Rear bench seat -
Rear head restraints” section:


"Ease of use and comfort - Front fittings -
Wireless smartphone charger" section:


"Lighting and visibility - Exterior lighting
control stalk" and "In the event of a
breakdown - Changing a bulb" sections:


"Safety - Child seats - Deactivating the front
passenger airbag" section:




"Safety - ISOFIX mountings" section:
i-SizeTOP TETHER
"Driving - Electric parking brake" section:

"Driving - Stop & Start" section:

"Practical information - Compatibility of
fuels" section:




"Practical information - Charging system
(Electric)" section:








"Practical information - Charging the traction
battery (Electric)" section:


"Practical information - Bonnet" section:

"Practical information - Checking levels -
Engine coolant" section:

16
Dashboard instruments
Engine self-diagnostics system (Petrol or
Diesel)
Fixed.
A minor engine fault has been
detected.
Carry out (3).
Dynamic stability control (DSC)/Anti-slip
regulation (ASR)
Flashing.
DSC/ASR system regulation is activated
in the event of a loss of grip or trajectory.
Fixed.
The DSC/ASR system has a fault.
Carry out (3).
Emergency brake malfunction (with
electric parking brake)
Fixed, accompanied by the
message "Parking brake fault".
Emergency braking does not deliver optimal
performance.
If automatic release is not available, use manual
release or carry out (3).
Hill start assistFixed, accompanied by the
message "Anti roll-back system
fault".
The system has a fault.
Carry out (3).
Dynamic stability control (DSC)/Anti-slip
regulation (ASR)
Fixed.
The system is deactivated. The DSC/ASR system is reactivated
automatically when the vehicle is started, and at
speeds above approximately 31 mph (50
km/h).
At speeds below 31 mph (50 km/h), it can be
reactivated manually.
Under-inflationFixed.
The pressure in one or more tyres is too
low.
Check the pressure of the tyres as soon as
possible.
Reinitialise the detection system after adjusting
the pressure.
Under-inflation warning lamp
flashing then fixed and Service
warning lamp fixed.
The tyre pressure monitoring system is faulty.
Under-inflation detection is no longer monitored.
Check the tyre pressures as soon as possible
and carry out (3).
Engine preheating (Diesel)Temporarily on (up to approximately 30 seconds in
severe weather conditions).
When switching on the ignition, if the weather
conditions and the engine temperature make it
necessary.
Wait until the warning lamp goes off before
starting.
When the warning lamp goes off, starting will
occur immediately if you press and hold:
–

the clutch pedal with a manual gearbox. –


the brake pedal with an automatic gearbox.
If the engine does not start, make the engine
starting request again, while keeping your foot
on the pedal.
Particle filter (Diesel)Fixed, accompanied by an audible signal
and a message about the risk of particle
filter blockage.
The particle filter is nearing saturation.
As soon as traffic conditions permit, regenerate
the filter by driving at a speed of at least 37
mph
(60

km/h) until the warning lamp goes off.
Diesel fuel filter (Diesel)Fixed.
The Diesel fuel filter contains water.
Carry out (2) without delay. Risk of damaging the
fuel injection system!
AirbagsFixed, associated with the Service
warning lamp and accompanied by
the display of a message.
One of the airbags or seat belt pyrotechnic
pretensioners is faulty.
Carry out (3).
Front passenger airbag (ON)Fixed.
The front passenger airbag is activated.
The control is set to the "ON" position.
In this case, do not install a "rearward facing"
child seat on the front passenger seat - risk
of serious injury!

17
Dashboard instruments
1Front passenger airbag (OFF)Fixed.
The front passenger airbag is deactivated.
The control is set to the “OFF ” position.
A "rearward facing" child seat can be installed,
unless there is a fault with the airbags (Airbags
warning lamp on).
Low fuel level (Petrol or Diesel)Fixed, with the reserve level shown in red,
accompanied by an audible signal and
the display of a message.
When it first comes on, you have approximately
6 litres of fuel remaining in the tank (reserve).
Until the fuel level is topped up, this alert will
be repeated every time the ignition is switched
on, with increasing frequency as the fuel level
decreases and approaches zero.
Refuel without delay to avoid running out of fuel.
Never drive until completely empty, as
this could damage the emissions control and
injection systems.
Low traction battery level (Electric)
Fixed, accompanied by an audible signal.
The state of charge of the traction battery
is low.
View the remaining range.
Put the vehicle on charge as soon as possible.
Tortoise mode with limited driving range
(Electric)
Fixed.
The state of charge of the traction battery
is critical. The engine power gradually decreases.
You must put the vehicle on charge.
If the warning lamp remains lit, carry out
(2).
Pedestrian horn (Electric)Fixed.
Horn fault detected.
Carry out (3).
Collision Risk Alert/Active Safety BrakeFixed, accompanied by the display of a
message.
The system has been deactivated via the touch
screen.
Flashing.
The system activates and brakes the
vehicle momentarily to reduce the speed of
collision with the vehicle in front.
For more information, refer to the Driving
section.
Fixed, accompanied by a message and
an audible signal.
The system has a fault.
Carry out (3).
Fixed.
The system has a fault.
If these warning lamps come on after the engine
is switched off and then restarted, carry out (3).
Fixed.
The system is deactivated
temporarily because the driver and/or front
passenger (depending on version) has been
detected as present but the corresponding seat
belt has not been fastened.
Lane keeping assistFixed.
The system has been automatically
deactivated or placed on standby.
Flashing.
You are about to cross a broken
lane marking without operating the direction
indicators.
The system is activated, then corrects the
trajectory if it detects a risk of unintentionally
crossing a line or hard shoulder (depending on
version).
For more information, refer to the Driving
section.
Fixed.
The system has a fault.
Carry out (3).
Lane positioning assistFixed, accompanied by the
Service warning lamp.
The system has a fault.
Carry out (3).
Stop & Start (Petrol or Diesel)Fixed, accompanied by the display of a
message.
The Stop & Start system has been deactivated
manually.
The engine will not switch off at the next traffic
stop.
Reactivate the system via the touch screen.

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.

75
Safety
5Horn

► Press the central part of the steering wheel.
Pedestrian horn (Electric)
This system alerts pedestrians that the vehicle is approaching.
The pedestrian horn operates once the vehicle
is moving and at speeds of up to 19 mph
(30
km/h), in forward or reverse gear.
This function cannot be deactivated.
Malfunction
In the event of a malfunction, this warning
lamp lights up on the instrument panel.
Have it checked by a CITROËN dealer or a
qualified workshop.
* In accordance with the general conditions of use of the service, available from dealers an\
d subject to technological and technical limitations.
** Depend ing on the geographic coverage provided by the "eCall (SOS)" and "ASSISTANCE" systems.
The list of countries covered and the telematic services provided is ava\
ilable from dealers or on the website for your country.
Emergency or assistance
call




1. eCall (SOS)
2. ASSISTANCE
eCall (SOS)
Your vehicle may be fitted with the eCall (SOS)
system either as standard or as an option.
The eCall
(SOS) system provides direct contact
to the emergency services and is fully built
into the vehicle. This contact is made either
automatically via the sensors built into the
vehicle, or by pressing button 1.
According to the country of sale, the eCall
(SOS)
system
corresponds to the systems PE112,
ERAGLONASS, 999, etc.
The eCall
(SOS) system is activated by default.
► To make an emergency call manually, press
button 1 for more than 2 seconds.
The lit indicator lamp and a voice message
confirm that the call has been made to the
emergency services*.
The eCall
(SOS) system immediately locates
your vehicle and puts you in contact with the
appropriate emergency services**.
►

Pressing again immediately cancels the
request.
The indicator lamp flashes while the vehicle
data is being sent, and then remains lit when
communication is established.
In the event that a serious accident is
detected by the sensors built into the
vehicle, such as the airbag control unit, an
emergency call is made automatically.
The eCall (SOS) system is a public
service of general interest and is
free-of-charge.