2023 CITROEN C4 CACTUS brake light

2
Contents





 ■
Overview
Instruments and controls 4
 ■
Eco-driving
1Instruments
Instrument Panel 7
Warning and indicator lamps 7
Indicators
11
Touch screen 13
Trip computer 14
Distance recorders 15
Lighting dimmer 16
2Access
Electronic key with remote control
function and built-in key, 17
Keyless Entry and Starting 19
Central locking 20
Back-up procedures 21
Doors 23
Boot 23
Alarm 24
Electric windows 25
Rear door windows 26
3Ease of use and comfort
Front seats 27
Steering wheel adjustment 29
Mirrors 29
Rear seats 30
Heating and Ventilation 31
Heating / Manual air conditioning 32
Automatic air conditioning 33
Front demisting - defrosting 35
Rear screen demisting - defrosting 36
Courtesy lamps 36
Boot lighting 37
Panoramic glass sunroof 37
Interior fittings
37
Boot fittings 40
Rear shelf (van version) 41
4Lighting and visibility
Lighting control 42
Direction indicators 43
Automatic illumination of headlamps 43
Daytime running lamps/sidelamps (LEDs) 44
Headlamp beam height adjustment 44
Cornering lighting 45
Wiper control stalk 45
Changing a wiper blade 47
Automatic wiping 48
5Safety
General safety recommendations 49
Hazard warning lamps 49
Horn 50
Emergency or assistance call 50
Electronic stability control (ESC) 52
Seat belts 53
Airbags 55
Child seats 57
Deactivating the front passenger airbag 59
ISOFIX child seats 62
i-Size child seats 65
Child lock 65
6Driving
Driving recommendations 67
Starting / Switching off the engine with
the key
68
Starting / Switching off the engine with
Keyless Entry and Starting
70
Parking brake 72
6-speed manual gearbox 72
Automatic gearbox (EAT6) 72
Gear efficiency indicator 74
Hill start assist 75
Tyre under-inflation detection 75
Stop & Start 77
Driving and manoeuvring aids - General
recommendations
78
Speed Limit Recognition
and Recommendation
80
Speed limiter 82
Cruise control - particular recommendations 83
Cruise control 84
Active Safety Brake with Collision Risk
Alert and Intelligent emergency braking
assistance
85
Distraction detection 88
Lane Departure Warning System 89

4
Overview
Instruments and controls
1.Front electric window controls
2. Bonnet release
3. Courtesy lamp
Interior rear view mirror
Emergency or assistance call 4.
Touch screen with CITROËN Connect Radio
or CITROËN Connect Nav
Setting the date and time
Brightness of instruments and controls
Heating, ventilation
Manual air conditioning
Automatic air conditioning
5. 12 V accessory socket
USB socket
6. 6-speed manual gearbox
Automatic gearbox (EAT6)
Hill start assist
7. Parking brake
8. Glove box
9. Dashboard fuses
10. Instrument panel
Warning and indicator lamps
Indicator (servicing, engine oil level, gear
change)
Distance recorders
Steering mounted controls
1.Lighting control stalk
Automatic illumination of lamps
Direction indicators
2. Wiper control stalk
Trip computer
3. Speed limiter
Cruise control
4. Audio system setting controls
5. Horn
Side control bar

1.Manual headlamp beam height adjustment

7
Instruments
1Instrument panel
Displays
1.Cruise control or speed limiter settings.
2. Speed suggested by the speed limit
recognition
3. Digital speedometer (mph or km/h).
4. Information related to the automatic gearbox.
5. Gear shift indicator.
6. Service indicator, then total distance recorder
(miles or km).
These functions are displayed successively
when the ignition is switched on.
7. Engine oil level indicator.
8. Fuel gauge.
Warning and indicator
lamps
Displayed as symbols, the warning and indicator
lamps inform the driver of the occurrence of a
malfunction (warning lamps) or of the operating
status of a system (operation or deactivation
indicator lamps). Certain lamps light up in two
ways (fixed or flashing) and/or in several colours.
Associated warnings
The illumination of a lamp may be accompanied
by an audible signal and/or a message displayed
in a screen.
Relating the type of alert to the operating status
of the vehicle allows you to determine whether
the situation is normal or whether a fault has
occurred: refer to the description of each lamp
for further information.
When the ignition is switched on
Certain red or orange warning lamps come on
for a few seconds when the ignition is switched
on. These warning lamps should go off as soon
as the engine is started.
For more information on a system or a function,
refer to the corresponding section.
Warning lamp continuously
lit
The illumination of a red or orange warning lamp
indicates the occurrence of a fault that needs
further investigation.
If a warning lamp remains lit
The references (1), (2) and (3) in the warning
and indicator lamp description indicate whether
you should contact a qualified professional in
addition to the immediate recommended actions.
(1): You must stop the vehicle .
Stop as soon as it is safe to do so and switch off
the ignition. (2): Contact a CITROËN dealer or a qualified
workshop.
(3): Visit a CITROËN dealer or a qualified
workshop.
List of warning and
indicator lamps
Red warning/indicator lamps
STOP
Fixed, associated with another warning
lamp, accompanied by the display of a
message and an audible signal.
Indicates a serious fault with the engine, braking
system, power steering, automatic gearbox or a
major electrical fault.
Carry out (1) and then (2).
Engine oil pressureFixed.
There is a fault with the engine lubrication
system.
Carry out (1) and then (2).
BrakesFixed.
The brake fluid level has dropped
significantly.
Carry out (1), then top up with brake fluid
that complies with the manufacturer's
recommendations. If the problem persists, carry
out (2).

10
Instruments
Indicators
Service indicator
The service indicator is displayed on the
instrument panel. Depending on the vehicle
version:
– 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.
Service spannerLights up temporarily when the ignition is
switched on.
Between 1,800 miles (3,000 km) and 600 miles
(1,000 km) remain before the next service is due.
Fixed, when the ignition is switched on.
The service is due in less than 600 miles
(1,000 km).
Have your vehicle serviced very soon.
Service spanner flashingFlashing then fixed, when the
ignition is switched on.
(With BlueHDi Diesel engines, combined with the
Service warning lamp.)
The servicing interval has been exceeded.
Have your vehicle serviced as soon as possible.
The distance indicated (in miles or kilometres) is calculated according to the
If the engine does not start, switch the ignition off
and then on, wait until the indicator lamp goes off
again, then start the engine.
Front passenger airbag (ON)Fixed.
The front passenger airbag is activated.
The control is in the "ON" position.
In this case, do NOT install a "rearward
facing" child seat on the front passenger seat
- Risk of serious injury!
Front passenger airbag(OFF)Fixed.
The front passenger airbag is deactivated.
The control is in the "OFF" position.
You can install a "rearward facing" child seat,
unless there is a fault with the airbags (airbag
warning lamp on).
AirbagsFixed.
One of the airbags or seat belt
pretensioners is faulty.
Carry out (3).
Low fuel levelFixed, accompanied by an audible signal
and a message.
Until sufficient fuel has been added, this
warning lamp reappears every time the ignition
is switched on, accompanied by an audible
warning and a message.
The audible warning and the message are
repeated with increasing frequency as the fuel level drops towards zero.
When it first comes on there remains
approximately 5 litres of fuel in the tank
(reserve).
Refuel without delay to avoid running out of fuel.
Never drive until completely empty, this could
damage the emissions and injection systems.
Lane departure alertFlashing, accompanied by an audible
signal.
A lane is being crossed, right side (or left side).
Turn the steering wheel in the opposite direction
to return to the correct trajectory.
Fixed.
The system has a fault.
Carry out (3).
Rear foglampFixed.
The rear foglamp is lit.
Green warning/indicator lamps
Stop & Start
Fixed.
When the vehicle stops the Stop & Start
puts the engine into STOP mode.
Indicator flashing temporarily.
STOP mode is momentarily unavailable
or START mode is automatically triggered.
Direction indicatorsDirection indicators with audible signal.
The direction indicators are on.
SidelampsFixed.
The lamps are lit.
Dipped beam headlampsFixed.
The lamps are lit.
Front foglampsFixed.
The front foglamps are lit.
Blue warning/indicator lamps
Main beam headlamps
Fixed.
The main beams are on.
Black/white warning lamps
Foot on the brake
Fixed.
Omission or insufficient pressure on the
brake pedal.
With an automatic gearbox, with the engine
running, before releasing the parking brake, to
move out of position P.
Automatic wipingFixed.
Automatic windscreen wiping is activated.

67
Driving
6Driving recommendations
► Observe the driving regulations and remain
vigilant whatever the traffic conditions.
►

Monitor your environment and keep your
hands on the wheel to be able to react to
anything that may happen any time.
►


Drive smoothly
, anticipate the need for
braking and maintain a longer safety distance,
especially in bad weather.
►

Stop the vehicle to carry out operations that
require close attention (such as adjustments).
►


During long trips, take a break every two
hours.
Important!
Never leave the engine running in a
closed space without sufficient
ventilation. Internal combustion engines emit
toxic exhaust gases such as carbon
monoxide. Danger of poisoning and death!
In severe wintry conditions (temperature
below -23°C), let the engine run for 4
minutes before moving off, to ensure the
correct operation and durability of the
mechanical components of your vehicle
(engine and gearbox).
Never drive with the parking brake
applied . Risk of overheating and
damage to the braking system!
Do not park the vehicle or leave the
engine running on a flammable
surface (dry grass, dead leaves, etc.). The
exhaust system of your vehicle is very hot,
even several minutes after the engine stops.
Risk of fire!
Never leave a vehicle unattended with
the engine running. If you have to leave
your vehicle with the engine running, apply
the parking brake and put the gearbox into
neutral or position N or P (depending on the
type of gearbox).
Never leave children inside the vehicle
unsupervised.
On flooded roads
We strongly advise against driving on flooded
roads, as this could cause serious damage to
the engine or gearbox, as well as to the electrical
systems of your vehicle.


If you are obliged to drive on a flooded road:
► check that the depth of water does not
exceed 15 cm, taking account of waves that
might be generated by other users,
►

deactivate the Stop & Start function,
►


drive as slowly as possible without stalling. In
all cases, do not exceed 6 mph (10

km/h),
►

do not stop and do not switch off the engine.
On leaving the flooded road, as soon as safety
conditions allow

, make several light brake
applications to dry the brake discs and pads.
If in doubt about the state of your vehicle,
contact a CITROËN dealer or a qualified
workshop.
In case of towing
Driving with a trailer places greater
demands on the towing vehicle and
requires extra care from the driver.
Respect the maximum towable weights.
At altitude: reduce the maximum load by
10% per 1,000 metres of altitude; the density
of the air decreases with altitude and the
performance of the engine reduces.
New vehicle: do not pull a trailer before
having driven at least 620 miles (1,000
kilometres).
If the outside temperature is high, let the
engine idle for 1 to 2 minutes after the
vehicle comes to a stop, to help it to cool.

68
Driving
automatically to preserve the remaining battery
charge.
Starting the engine
With the parking brake applied:
► With a manual gearbox, place the gear lever
in neutral then fully depress the clutch pedal.
► With an automatic gearbox, place the gear
selector in mode N or P then fully depress the
brake pedal.
► Insert the key into the ignition switch; the
system recognises the code.
► Unlock the steering column by simultaneously
turning the steering wheel and the key.
In certain cases, you may have to apply
significant force to move the steering
wheel (wheels on full lock, for example).
► With a petrol engine , operate the starter
motor by turning the key to position 3 without
pressing the accelerator pedal, until the engine
starts. Once the engine starts, release the key.
With petrol engines , after a cold start,
preheating the catalytic converter can
cause noticeable engine vibrations for
anything up to 2 minutes while stationary with
the engine running (accelerated idle speed).
► With a Diesel engine, turn the key to position
2, ignition on, to operate the engine preheating
system.
Before setting off
Nose weight
► Distribute the load in the trailer so that the
heaviest items are as close as possible to the
axle and the nose weight (at the point where it
joins your vehicle) approaches the maximum
permitted without exceeding it.
Tyres
► Check the tyre pressures of the towing
vehicle and of the trailer , observing the
recommended pressures.
Lighting
► Check the electrical signalling on the trailer
and the headlamp beam height of your vehicle.
If a genuine CITROËN towing device is
used, the rear parking sensors will be
deactivated automatically to avoid the audible
signal.
When driving
Cooling
Towing a trailer uphill increases the temperature
of the coolant. The maximum towable load
depends on the gradient and the exterior
temperature. The cooling capacity of the fan
does not increase with engine speed.
►

Reduce speed and lower the engine speed,
so as to limit the heating-up. In all cases, pay attention to the coolant
temperature.
If this warning lamp and the
STOP
warning lamp come on, stop the vehicle
and switch off the engine as soon as possible.
Brakes
Braking distances are increased when towing a
trailer. To avoid overheating of the brakes, the
use of engine braking is recommended.
Side wind
Bear in mind the increased susceptibility to the
wind that the vehicle will have.
Anti-theft protection
Electronic immobiliser
The key contains an electronic chip which has a
special code. When the ignition is switched on,
this code must be recognised in order for starting
to be possible.
This electronic engine immobiliser locks the
engine management system a moment after
the ignition is switched off, and prevents
unauthorised engine starting.
In the event of a fault, you are informed
by illumination of this warning lamp, an
audible signal and a message in the screen.
In this case, your vehicle will not start; contact
a CITROËN dealer or a qualified workshop as
soon as possible.
Starting / Switching off the
engine with the key
Key ignition switch

It has 3 positions:
– 1. Stop: inserting and removing the key ,
steering column locked.
–

2. Ignition : steering column unlocked, ignition
on, Diesel preheating, engine running.
–


3. Starting
.
Avoid attaching heavy objects to the key or the remote control. It would weigh
down on its shaft in the ignition switch and
could cause a malfunction.
Ignition on position
It allows the use of the vehicle's electric
equipment or portable devices to be charged.
Once the state of charge of the battery drops to
the reserve level, the system switches to energy
economy mode : the power supply is cut off

70
Driving
Switching on the ignition
without starting the engine


With the electronic key in the passenger
compartment, pressing the “START/STOP”
button, without pressing any of the pedals ,
allows the ignition to be switched on without
starting the engine (turning on the instrument
panel and accessories such as the audio system
and the lighting).
► Press this button again to switch off the
ignition and allow the vehicle to be locked.
Key not detected
Back-up starting
A back-up reader is fitted underneath the
parking brake lever so that the engine can be
started if the system does not detect the key
in the recognition zone, or if the battery in the
electronic key is flat.

audible signal, to remind you that the key is
still in the ignition switch at position 1 (Stop).
If the key has been left in the ignition switch
at position 2 (Ignition on) , the ignition will be
switched off automatically after one hour.
To switch the ignition back on, turn the key
to position 1 (Stop), then back to position 2
(Ignition on) .
Starting / Switching off the
engine with Keyless Entry
and Starting
The electronic key must be present in the
passenger compartment.
If it is not detected, a message is displayed.
Move the electronic key so that the engine
can be started or switched off.
If there is still a problem, refer to the "Key
not detected - Back-up starting or Back-up
switch-off" section.
Starting

► With a manual gearbox, place the gear lever
in neutral and fully depress the clutch pedal.
►

With an
automatic gearbox, select mode P
or
N and press the brake pedal.


► Press the " START/STOP" button while
maintaining pressure on the pedal until the
engine starts.
For Diesel engines, when the temperature is
below zero and/or the engine is cold, starting will
only occur once the preheating warning lamp is
off.
If this warning lamp comes on after
pressing the " START/STOP" button:
►

Keep the pedal fully depressed and do not
press the "

START/STOP" button again until the
engine is running.
If one of the starting conditions is not met, a
message is displayed.
In some circumstances, a message indicates
that it is necessary to turn the steering wheel
while pressing the " START/STOP" button to
assist unlocking of the steering column.
With petrol engines , after a cold start,
preheating the catalytic converter can
cause noticeable engine vibrations for
anything up to 2 minutes while stationary with
the engine running (accelerated idle speed).
Switching off
► Immobilise the vehicle, with the engine at
idle.
►

With a
manual gearbox, ideally put the gear
lever into neutral.
►

With an
automatic gearbox, ideally select
mode
P or N.
►

Press the "
START/STOP" button..
In some circumstances, it is necessary to turn
the steering wheel to lock the steering column.
If the vehicle is not immobilised, the
engine will not switch off.
With the engine off, the braking and
steering assistance systems are also cut
off - risk of loss of control of the vehicle!
Never leave your vehicle with the
electronic key still inside.

71
Driving
6Switching on the ignition
without starting the engine


With the electronic key in the passenger
compartment, pressing the “START/STOP”
button, without pressing any of the pedals ,
allows the ignition to be switched on without
starting the engine (turning on the instrument
panel and accessories such as the audio system
and the lighting).
►

Press this button
again to switch off the
ignition and allow the vehicle to be locked.
Key not detected
Back-up starting
A back-up reader is fitted underneath the
parking brake lever so that the engine can be
started if the system does not detect the key
in the recognition zone, or if the battery in the
electronic key is flat.


► Place and hold the remote control against the
reader .
►

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

W
ith an automatic gearbox, select mode P,
then fully depress the brake pedal.
►

Press the “
START/STOP” button.
The engine starts.
Back-up switch-off

If the electronic key is not detected or is no
longer in the recognition zone, a message
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 the event of an 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.