2021 CITROEN C4 AIRCROSS DAG headlamp

56
Lighting and visibility
the left, moving the lighting control stalk upwards turns on the right-hand sidelamps).
This is confirmed by an audible signal and the
lighting of the corresponding direction indicator
lamp on the instrument panel.
► To switch off the parking lamps, return the lighting control stalk to the central position.
Automatic illumination of
headlamps
When the ring is at the "AUTO" position and
a low level of ambient light is detected by a
sunshine sensor, the number plate lamps, side lamps and dipped beam headlamps are switched
on automatically, without any action on the
part of the driver. They can also come on if
rain is detected, at the same time as automatic
operation of the windscreen wipers.
As soon as the light returns to a sufficient level
or after the windscreen wipers are switched off,
the lamps are switched off automatically.
Operating fault
In the event of a malfunction of the sunshine sensor, the lighting comes on,
this warning lamp is displayed in the instrument
panel accompanied by an audible signal and/or a
message.
Contact a CITROËN dealer or a qualified
workshop.
They operate with the sidelamps or dipped beam headlamps on, in manual or
auto mode.
► Press and rotate the ring:– forwards a 1st time to switch on the front
foglamps.
– forwards a 2nd time to switch on the rear
foglamp.
– backwards a 1st time to switch off the rear
foglamp.
– backwards a 2nd time to switch off the front
foglamps.
When the lamps are switched off automatically
(with AUTO model) or when the dipped beam
headlamps are switched off manually, the
foglamps and sidelamps remain on.
► Rotate the ring backwards to switch the foglamps off; the sidelamps will then switch off.
In good or rainy weather, by day and
night, using the front and rear foglamps
is prohibited. In these situations, the power of
their beams may dazzle other drivers. They
should only be used in fog or falling snow.
In these weather conditions, it is your
responsibility to switch on the foglamps and
dipped beam headlamps manually as the
sunshine sensor may detect sufficient light.
Do not forget to turn off the front and rear
foglamps as soon as they are no longer
necessary.
Switching off of the lamps when the
ignition is switched off
When the ignition is switched off, all of the
lamps turn off immediately, except for dipped
beam headlamps if automatic guide-me-home
lighting is activated.
Switching on the lamps after
switching off the ignition
To reactivate the lighting control, rotate the
ring to the "AUTO" position, then to the
desired position.
If the driver's door is opened, a temporary
audible signal warns the driver that the lamps
are on.
They will go off automatically after a period of
time that depends on the state of charge of
the battery (entering energy economy mode).
Direction indicators
(flashers)


► Left: lower the lighting control stalk passing the point of resistance.► Right: raise the lighting control stalk passing the point of resistance.
Three flashes
► Press briefly upwards or downwards, without going beyond the point of resistance; the
direction indicators will flash 3 times.
Parking lamps
Vehicle side marking by lighting the sidelamps
on the traffic side only.
► Depending on version, within one minute of switching off the ignition, move the lighting
control stalk up or down, depending which side
the traffic is on (for example, when parking on

57
Lighting and visibility
4the left, moving the lighting control stalk upwards
turns on the right-hand sidelamps).
This is confirmed by an audible signal and the
lighting of the corresponding direction indicator
lamp on the instrument panel.
► To switch off the parking lamps, return the lighting control stalk to the central position.
Automatic illumination of headlamps
When the ring is at the "AUTO" position and
a low level of ambient light is detected by a
sunshine sensor, the number plate lamps, side lamps and dipped beam headlamps are switched
on automatically, without any action on the
part of the driver. They can also come on if
rain is detected, at the same time as automatic
operation of the windscreen wipers.
As soon as the light returns to a sufficient level
or after the windscreen wipers are switched off,
the lamps are switched off automatically.
Operating fault
In the event of a malfunction of the sunshine sensor, the lighting comes on,
this warning lamp is displayed in the instrument
panel accompanied by an audible signal and/or a
message.
Contact a CITROËN dealer or a qualified
workshop.
Do not cover the sunshine sensor,
integrated with the rain sensor and
located at the top centre of the windscreen
behind the rear view mirror; the associated
functions would no longer be controlled.
In fog or snow, the sunshine sensor may
detect sufficient light. In this case, the
lighting will not come on automatically.
Daytime running lamps /
Sidelamps


The front and rear lamps light up automatically
when the engine starts.
They provide the following functions:
– Daytime running lamps (lighting control stalk
at position "AUTO" with adequate light level).
– Sidelamps (lighting control stalk in "AUTO"
position with low light level or "Sidelamps only”
or "Dipped/main beam headlamps").
In daytime running lamps mode, the
diodes are brighter.
Guide-me-home lighting
Automatic
With the "Automatic illumination of headlamps"
function activated (lighting control stalk at the
AUTO position), under low ambient light, the
dipped beam headlamps come on automatically
when the ignition is switched off.
Activation, deactivation and the duration of the
guide-me-home lighting are set in the vehicle
parameters menu.
Manual

58
Lighting and visibility
• If the "AUTO" and "Main beam" indicator lamps were on, the system changes to dipped beam.
To reactivate the system, flash the headlamps
again.
The system may be disrupted or not work correctly:
– When visibility conditions are poor (snowfall, heavy rain, etc.).– If the windscreen in front of the camera is dirty, misted or obscured (for example, by a
sticker).
– If the vehicle is facing highly reflective signs.
When the system detects thick fog, it
temporarily deactivates the function.
The system is not able to detect:
– Road users that do not have their own lighting, such as pedestrians.– Vehicles whose lighting is obscured (for example, vehicles driving behind a safety
barrier on a motorway).
– Vehicles at the top or bottom of a steep slope, on winding roads, on crossroads.
Clean the windscreen regularly,
particularly the area in front of the
camera.
The internal surface of the windscreen can
also become misted around the camera.
In humid and cold weather, demist the
windscreen regularly.
7KHWHPSRUDU\\
LOOXPLQDWLRQ\
RIWKHGLSSHG\
EHDPKHDGODPSVDIW\
HUWKHYHKLFOH\

VLJQLWLRQK\
DVEHHQ
VZLWFKHGR

59
Lighting and visibility
4• If the "AUTO" and "Main beam" indicator lamps were on, the system changes to dipped beam.
To reactivate the system, flash the headlamps
again.
The system may be disrupted or not work correctly:
– When visibility conditions are poor (snowfall, heavy rain, etc.).– If the windscreen in front of the camera is dirty, misted or obscured (for example, by a
sticker).
– If the vehicle is facing highly reflective signs.
When the system detects thick fog, it
temporarily deactivates the function.
The system is not able to detect:
– Road users that do not have their own lighting, such as pedestrians.– Vehicles whose lighting is obscured (for example, vehicles driving behind a safety
barrier on a motorway).
– Vehicles at the top or bottom of a steep slope, on winding roads, on crossroads.
Clean the windscreen regularly,
particularly the area in front of the
camera.
The internal surface of the windscreen can
also become misted around the camera.
In humid and cold weather, demist the
windscreen regularly.
Do not allow snow to accumulate on the
bonnet or roof of the vehicle as this could
obstruct the detection camera.
Headlamp beam height
adjustment



To avoid causing a nuisance to other road users,
the height of the headlamp beams should be
adjusted according to the load in the vehicle.
0. (Initial adjustment)
Driver only or driver + front passenger
1. Driver + front passenger + rear passengers +
maximum authorised load
2. Driver only + maximum authorised load
Cornering lighting

If your vehicle is so equipped, 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, intersections, parking manoeuvres,
etc.).


Without cornering lighting

60
Lighting and visibility
Automatic.
Refer to the corresponding section.
Front screenwash
► Pull the wiper control stalk towards you and hold.
The screenwash then the windscreen wipers
operate for a pre-determined time.
The height of the front screenwash jets
can be adjusted. To change the factory
setting, insert a needle into each of the jets,
then direct them.
To avoid damaging the wiper blades, do not operate the screenwash if the
screenwash reservoir is empty.
Only operate the screenwash if there is no
risk of the fluid freezing on the windscreen
and hindering visibility. During the winter
period, use "very cold climate" rated products.
Never top up with water.
Rear wiper
► Turn the ring to align the desired symbol with the marking.Off
Intermittent wipe

With cornering lighting
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 25 mph (40 km/h).– when reverse gear is engaged.
Programming
The function is activated or deactivated via the
vehicle configuration menu.
This function is activated by default.
Without audio system
► In the "LIGHTING" menu on the instrument
panel display, activate/deactivate "DIR
HEADLAMPS" (directional headlamps).
With audio system
► In the "Personalisation-
configuration " menu, activate/deactivate
"Directional headlamps".
With touch screen
► In the Driving / Vehicle menu, select
the "Vehicle settings" tab, then
"Lighting " and activate/deactivate " Directional
headlamps".
Wiper control stalk
In wintry conditions, remove snow, ice or
frost present on the windscreen, around
the wiper arms and blades and on the
windscreen seal, before operating the wipers.
Do not operate the wipers on a dry
windscreen. Under extremely hot or cold
conditions, ensure that the wiper blades are
not stuck to the windscreen before operating
the wipers.
Without AUTO wiping


With AUTO wiping

Windscreen wipers
► To select the wiping speed: raise or lower the stalk to the desired position.Fast wiping (heavy rain)
Normal wiping (moderate rain)
Intermittent wiping (proportional to the vehicle’s speed)Off
Single wipe (press down and release).
or

86
Driving
Driving 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.
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 causes the coolant
temperature to increase. The maximum towable
load depends on the gradient and the exterior
temperature. The fan’s cooling capacity does not
increase with engine speed.
► Reduce speed and lower the engine speed to limit heating up.

87
Driving
6Before 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 causes the coolant
temperature to increase. The maximum towable
load depends on the gradient and the exterior
temperature. The fan’s cooling capacity does not
increase with engine speed.
► Reduce speed and lower the engine speed to limit 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 the brakes, the use
of engine braking is recommended.
Side wind
Bear in mind that the vehicle will be more
susceptible to wind when towing.
Anti-theft protection
Electronic immobiliser
The keys include an electronic engine
immobiliser system, whose secret code must be
recognised in order for starting to be possible.
If the system malfunctions, indicated by the
display of a message, the engine will not start.
Contact a CITROËN dealer.
For safety and theft protection reasons,
do not leave your electronic key in the
vehicle, even when you are close to it.
It is recommended that you keep it with you.
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

88
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.
Wait until this warning lamp goes off in the instrument panel, then 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.
In wintry conditions, the warning lamp
may stay on for a longer period. When
the engine is hot, the warning lamp does not
come on.
If the engine does not start straight away,
switch off the ignition. Wait a few
seconds before operating the starter motor
again. If the engine does not start after a few
attempts, do not keep trying - risk of
damaging the starter motor and the engine.
Contact a CITROËN dealer or a qualified
workshop.
In mild conditions, do not leave the
engine at idle to warm up but move off
straight away and drive at moderate speed.
Switching off the engine
► Immobilise the vehicle.► With the engine at idle, turn the key to position 1.► Remove the key from the ignition switch.► To lock the steering column, turn the steering wheel until it locks.
To facilitate unlocking of the steering
column, it is recommended that the
wheels be returned to the straight ahead
position before switching off the engine.
Never switch off the ignition before the
complete immobilisation of the vehicle.
With the engine off, the braking and steering
assistance systems are also cut off - risk of
loss of control of the vehicle!
Check that the parking brake is correctly
applied, particularly on sloping ground.
When leaving the vehicle, keep the key in
your possession and lock the vehicle.
Energy economy mode
After the engine has stopped (position 1. Stop),
for a maximum combined duration of about thirty
minutes, you can still use functions such as the
audio and telematics system, courtesy lamps,
windscreen wipers, dipped beam headlamps,
etc.
For more information on Energy
economy mode, refer to the
corresponding section.
Key left in
When opening the driver's door, an alert
message is displayed, accompanied by an
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.