2023 CITROEN C4 dashboard 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.