2023 CITROEN C4 warning lights

15
Dashboard instruments
1Fixed, accompanied by the message
"Parking brake fault".
Automatic release of the electric parking brake is
unavailable.
Carry out (2).
Service warning lamp fixed and
service spanner flashing then
fixed.
The servicing interval has been exceeded.
The vehicle must be serviced as soon as
possible.
Only with BlueHDi Diesel engines.
BrakingFixed.
A minor fault with the braking system has
been detected.
Drive carefully.
Carry out (3).
Malfunction (with electric parking brake)Fixed, accompanied by the
message "Parking brake fault".
The vehicle cannot be immobilised with the
engine running.
If manual application and release commands are
not working, the electric parking brake control is
faulty.
The automatic functions must be used at all
times and are automatically reactivated in the
event of a fault with the control.
Carry out (2).
Fixed, accompanied by the
message "Parking brake
fault".
The electric parking brake is faulty: manual and
automatic functions may not be working.
When stationary, to immobilise the vehicle:
►

Pull the electric parking brake control and
hold it for approximately 7 to 15 seconds, until
the indicator lamp lights up on the instrument
panel.
If this procedure does not work, secure the
vehicle:
►


Park on a level surface.
►


With a manual gearbox, engage a gear
.
►

With an automatic gearbox or drive selector
,
select

P, then place the supplied chock against
one of the wheels.
Then carry out (2).
Automatic functions deactivated (electric
parking brake)
Fixed.
The "automatic application" (on switching
off the engine) and "automatic release" (on
acceleration) functions are deactivated.
If automatic application/release is no longer
possible:
►

Start the engine.
►


Use the control to apply the electric parking
brake.
►


T

ake your foot fully off the brake pedal.
►

Hold the control pressed in the release
direction for between 10 and 15

seconds.
►

Release the control. ►


Depress and hold the brake pedal.
►

Pull the control in the application direction for
2
seconds.
►
Release the control and the brake pedal.
Anti-lock braking system (ABS)Fixed.
The anti-lock braking system has a fault.
The vehicle retains conventional braking.
Drive carefully at moderate speed, then carry
out (3).
Power steeringFixed.
The power steering has a fault.
Drive carefully at moderate speed, then carry
out (3).
Engine self-diagnostic system (Petrol or
Diesel)
Flashing.
The engine management system has a
fault.
There is a risk that the catalytic converter will be
destroyed.
You must carry out (2).
Fixed.
The emissions control system has a fault.
The warning lamp should go off when the engine
is started.
Carry out (3) without delay.

19
Dashboard instruments
1Flashing temporarily.
STOP mode is momentarily unavailable
or START mode is automatically triggered.
For more information, refer to the Driving
section.
Vehicle ready to drive (Electric)Fixed, accompanied by an audible signal
when it comes on.
The vehicle is ready to drive and the thermal
comfort systems are available.
The indicator lamp goes out upon reaching a
speed of approximately 3 mph (5
km/h) and
lights up again when the vehicle stops moving.
The lamp will go out when you switch off the
motor and exit the vehicle.
Seat occupied/Seat belt fastenedFixed.
With the ignition on, the driver or a
passenger has fastened their seat belt.
Park AssistFixed.
The function is active.
For more information, refer to the Driving
section.
Lane positioning assistFixed.
The function has been activated.
All conditions have been met: the system is
operating.
For more information, refer to the Driving
section.
Direction indicatorsFlashing with audible signal.
The direction indicators are on.
SidelampsFixed.
The lamps are on.
Dipped beam headlampsFixed.
The lamps are on.
Automatic headlamp dippingFixed.
The function has been activated
via the touch screen.
The lighting control stalk ring is in the “ AUTO”
position.
For more information, refer to the Lighting and
visibility section.
Front foglampsFixed.
The front foglamps are on.
Blue warning/indicator lamps
Main beam headlamps
Fixed.
The lamps are on.
Black/white warning lamps
Foot on the clutch (Petrol or Diesel)
Fixed.
Stop & Start: the change to START mode
is rejected because the clutch pedal is not fully
depressed. Fully depress the clutch pedal.
Foot on the brakeFixed.
Insufficient or no pressure on the brake
pedal.
Fuel filter (Diesel)Fixed.
The Diesel fuel filter contains water.
Carry out (2) without delay. Risk of damaging the
fuel injection system!
Indicators
Service indicator
The servicing information is expressed in terms
of distance (miles or kilometres) and time
(months or days).
The alert is given at whichever of these two
terms is reached first.
The servicing information is displayed in the
instrument panel. Depending on the version of
the vehicle:
–

The distance recorder display line indicates
the distance remaining before the next service
is due, or the distance travelled since it was due
preceded by the "-" sign.
–


An alert message indicates the distance
remaining, as well as the period before the next
service is due or how long it is overdue.

21
Dashboard instruments
1If a low oil level is confirmed by a check using
the dipstick, the level must be topped up to avoid
damage to the engine.
For more information on Checking levels, refer
to the corresponding section.
Oil gauge malfunction
This is indicated by the display of " OIL_ _"
or by the message "Oil level measurement
invalid " (depending on the instrument panel),
accompanied by the lighting of the Service
warning lamp and an audible signal.
Contact a CITROËN dealer or a qualified
workshop.
In the event of a malfunction of the
electric gauge, the oil level is no longer
monitored.
If the system is faulty, you must check the
engine oil level using the manual dipstick
located in the engine compartment.
For more information on Checking levels,
refer to the corresponding section.
Coolant temperature
indicator
Depending on the type of instrument panel, this
information is only available in the instrument
panel's personalisable area.


With the engine running:
– In zone A, the temperature is correct.
–

In zone
B, the temperature is too high. The
associated warning lamp and the STOP
warning
lamp light up in red on the instrument panel,
accompanied by the display of a message and
an audible signal.
You must stop the vehicle as soon as it is
safe to do so.
Wait a few minutes before switching off the
engine.
After switching off the ignition, carefully open the bonnet and check the coolant
level.
For more information on Checking
levels, refer to the corresponding
section.
AdBlue® range indicators
(BlueHDi)
The Diesel BlueHDi engines are equipped with
a system that associates the SCR (Selective
Catalytic Reduction) emissions control system
and the Diesel particle filter (DPF) for the
treatment of exhaust gases. They cannot
function without AdBlue
® fluid.
When the level of AdBlue® falls below the
reserve level (between 1,500 and 0 miles (2,400
and 0

km)), a warning lamp lights up when
the ignition is switched on and an estimate
of the distance that can be travelled before
engine starting is prevented is displayed in the
instrument panel.
The engine starting prevention system required by regulations is activated
automatically once the AdBlue
® tank is empty.
It is then no longer possible to start the
engine until the minimum level of AdBlue
® has
been topped up.
Manual display of driving range
While the driving range is greater than
1,500 miles (2,400 km), it is not displayed
automatically.

70
Lighting and visibility
The function is deactivated if the foglamps
are switched on or if the system detects poor
visibility conditions (e.g. fog, heavy rain,
snowfall).
When the foglamps are switched off or when the
visibility conditions become favourable again, the
function is automatically reactivated.
This indicator lamp goes out when the function is deactivated.
Pause
If the situation requires a change of headlamp
beam, the driver can take over at any time.
►

Switch the headlamps manually between
dipped and main beam to pause the function.
If the "AUT

O" and "Dipped beam" indicator
lamps were on, the system changes to main
beam.
If the "AUTO" and "Main beam" indicator
lamps
were on, the system changes to dipped beam.
►

T
o reactivate the function, once again switch
the headlamps manually between dipped and
main beam.
Malfunction
If a malfunction occurs with the system or
the camera, this warning lamp lights up
on the instrument panel, accompanied by an
audible signal and a message.
Have it checked by a CITROËN dealer or a
qualified workshop.
Cornering lighting
This system makes use of the beam from a front
foglamp to illuminate the inside of a bend, when
the main or dipped beam headlamps are on and
the vehicle speed is below 25 mph (40
km/h)
(urban driving, winding road, junctions, parking
manoeuvres).


Without/With cornering lighting
Activation/Deactivation
With Touch screen BLUETOOTH audio
system or MyCitroën Play
It is configured via the Driving touch
screen menu.
With MyCitroën Drive
It is configured via the Vehicle touch
screen menu.
With MyCitroën Drive Plus
It is configured in the Settings > Vehicle
touch screen application.
Switching on/off
This system starts:
– when the corresponding direction indicator is
switched on.
or
–

from a certain angle of rotation of the steering
wheel.
It becomes inactive:
–


below a certain angle of rotation of the
steering wheel.
–


above approximately 25 mph (40
km/h).
–

when reverse gear is engaged.
Wiper control stalk
Before operating the wipers in wintry
conditions, clear any snow, ice or frost
from the windscreen and around the wiper
arms and blades.
Do not operate the wipers on a dry
windscreen. In extremely hot or cold
weather, check that the wiper blades are not
stuck to the windscreen before operating the
wipers.
After using an automatic car wash, you may temporarily notice abnormal noises
and poorer wiping performance.
You do not
need to replace the wiper blades.

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.

79
Safety
5These systems are activated automatically every
time the vehicle is started.
These systems are activated in the event of a problem with grip or trajectory
(confirmed by this warning lamp flashing on the
instrument panel).
Deactivation/Reactivation
In exceptional conditions (e.g. moving a vehicle
that is bogged down in mud, stuck in snow , on
loose soil), it may prove useful to deactivate the
ASR system, so that the wheels can move freely
and regain grip.
Reactivate the system as soon as the level of
grip permits.
With Touch screen BLUETOOTH audio
system or MyCitroën Play
The ASR system is deactivated/ reactivated in the Driving touch screen
menu.
With MyCitroën Drive
The ASR system is deactivated/ reactivated in the Vehicle touch screen
menu.
With MyCitroën Drive Plus
The ASR system is deactivated/ reactivated in the ADAS touch screen
application.
Deactivation of the ASR system is
indicated by this indicator lamp on the
instrument panel coming on and the display of a
message.
The ASR system is automatically reactivated
every time the ignition is switched off or at
speeds over 31 mph (50 km/h)
Reactivation is manual below 31 mph (50 km/h).
Malfunction
In the event of a malfunction, this warning
lamp lights up on the instrument panel,
accompanied by the display of a message and
an audible signal.
Have it checked by a CITROËN dealer or a
qualified workshop.
ASR/DSC
These systems enhance safety during
normal driving, but should not encourage
the driver to take extra risks or drive at high
speed.
It is in conditions of reduced grip (rain, snow,
ice) that the risk of loss of grip increases. It
is therefore important for your safety to keep
these systems activated in all conditions, and
particularly in difficult conditions.
Correct operation of these systems depends
on compliance with the manufacturer's
recommendations relating to the wheels
(tyres and rims), braking and electronic
components, as well as the assembly and
repair procedures provided by CITROËN
dealers.
In order to ensure that these systems remain
effective in wintry conditions, the use of snow
or all-season tyres is recommended. All four
wheels must be fitted with tyres approved for
your vehicle.
All tyre specifications are listed on the
tyre/paint label. For more information
on Identification markings , refer to the
corresponding section.
Seat belts
Inertia reel
The seat belts are equipped with an inertia
reel which allows the strap length to adjust
automatically to the shape of the user. The seat
belt returns to its storage automatically when it
is not used.
The inertia reels are fitted with a device which
automatically locks the strap in the event of a
collision, emergency braking or if the vehicle rolls
over. It can be released by pulling the strap firmly
and then releasing it so that it reels in slightly.
Pyrotechnic pretensioning
This system improves safety in the event of a
frontal or side impact.
Depending on the severity of the impact, the
pyrotechnic pretensioning system instantly
tightens the seat belts against the body of the
occupants.
The pyrotechnic pretensioning seat belts are
enabled when the ignition is on.
Force limiting system

98
Driving
appears in the instrument panel when closing a
door or trying to switch off the engine.
►
T
o confirm the instruction to switch off the
engine, press the " START/STOP" button for
approximately 5
seconds.
In the event of a fault with the electronic key,
contact a CITROËN dealer or a qualified
workshop.
Emergency switch-off
In case of emergency only, the engine can be
switched off without conditions (even when
driving).
►

Press the "
START/STOP" button for about
5
seconds.
In this case, the steering column locks as soon
as the vehicle stops.
Starting/Switching off the
electric motor
Starting
The drive selector must be in mode P.
► If using a remote control key , depress the
brake pedal and turn the key until it reaches
position 3 (Start).
►

If using
Keyless Entry and Start, depress the
brake pedal and briefly press the "START/STOP"
button.
►

Keep your foot on the brake pedal until the
READY

indicator lamp comes on and an audible
signal is emitted, indicating that the vehicle is
ready to drive.
►
With your foot on the brake, select mode
D
or R.
►

Release the brake pedal, then accelerate.
On starting, the instrument panel lights up and
the power indicator cursor moves to the "neutral"
position.

The steering column automatically
unlocks (you may hear a sound and feel the
steering wheel move).
Switching off
► If using a remote control key , turn the key
fully to position 1 (Stop).
►

If using Keyless Entry and Start, press the
"

START/STOP" button.
Before exiting the vehicle, check that:
–

The drive selector is in mode P

.
–
The READY indicator lamp is off.
The drive selector moves automatically
to mode P when the motor is switched off
or when the driver's door is opened.
If the driver's door is opened while the
required conditions for switching off are
not met, an audible signal is emitted,
accompanied by the display of a warning
message.
For the procedures for switching on the
ignition without starting the engine and
those for back-up starting/switching off using
the Keyless Entry and Start system, refer to
the Starting/Switching off the engine
using
Keyless Entry and Start section.
Manual parking brake
Release

► Pull the parking brake lever up slightly , press
the release button, then lower the lever fully.
/ When driving the vehicle, if this
warning lamp and the STOP
warning lamp come on, accompanied by an
audible signal and the display of a message, this
means that the parking brake is still applied or
has not been fully released.
Application
► Pull the parking brake lever up to immobilise
the vehicle.
When parking on a slope, turn the
wheels against the kerb, apply the
parking brake, engage a gear and switch off
the ignition.

106
Driving
Malfunction
If the event of a malfunction, these
warning lamps light up on the
instrument panel, accompanied by the display of
a message.
Have it checked by a CITROËN dealer or a
qualified workshop.
Gear shift indicator
(Depending on engine)
This system is designed to reduce fuel
consumption by recommending the most suitable
gear.
Operation
Depending on the driving situation and
the vehicle's equipment, the system may
recommend skipping one or more gears.
Gear engagement recommendations are
not to be considered mandatory. Indeed, the
configuration of the road, the traffic density and
safety remain determining factors when choosing
the best gear. Therefore, the driver remains
responsible for deciding whether or not to follow
the system’s advice.
The system cannot be deactivated.
With an automatic gearbox, the system is
only active in manual operation.
The information appears on the instrument panel, in the form of an arrow
and the recommended gear.
The system adapts the gear change instructions according to the driving
conditions (e.g.
slope, load) and driving style
(e.g.
power demand, acceleration, braking).
The system never suggests:
–

engaging first gear;
–


engaging reverse gear
.
Stop & Start
The Stop & Start function puts the engine temporarily into standby - STOP mode - during
phases when the vehicle is stationary (e.g.
red
lights, traffic jams). The engine automatically
restarts - START mode - as soon as the driver
indicates the intention of moving off again.
Primarily designed for urban use, the function
is intended to reduce fuel consumption and
exhaust emissions as well as the noise level
when stationary.
The function does not affect the functionalities of
the vehicle, in particular the braking.
Deactivation/Reactivation
By default, the function is activated when the
ignition is switched on.
With Touch screen BLUETOOTH audio
system or MyCitroën Play
The settings are changed via the Driving
touch screen menu.
With MyCitroën Drive
The settings are changed via the Vehicle
touch screen menu.
With MyCitroën Drive Plus
The settings are changed via the ADAS
touch screen application or via the
Shortcuts for driving aids .
The display of a message on the instrument
panel confirms the change of state.
If the function is deactivated while the engine is
in STOP mode, it will restart immediately.
Associated indicator lamps
Function activated: engine on standby
(STOP mode)
Function deactivated or malfunction
Opening the bonnet
Before doing anything under the bonnet,
deactivate the Stop & Start system to avoid
any risk of injury caused by the engine
restarting automatically.