2021 CITROEN C4 AIRCROSS DAG Handbook (in English)

63
Lighting and visibility
4Do not cover the rain/sunshine sensor.
When using an automatic car wash,
switch off the automatic wipers and the
ignition.
In winter, wait until the windscreen is
completely clear of ice before activating the
automatic wipers.
Switching on

► Give a short downwards push to the control stalk.
A wiping cycle confirms that the instruction has
been accepted.
Depending on version, this indicator lamp appears in the display or comes on in the
instrument panel, accompanied by a message.
Switching off
► Give the control stalk another brief push downwards or place the control stalk in another
position ( Int, 1 or 2).
Depending on version, this indicator lamp
disappears from the display or goes off in
the instrument panel, accompanied by a
message.
If the ignition has been off for more than
one minute, the automatic wipers must
be reactivated by pushing the control stalk
downwards.
Malfunction
If a fault occurs with the automatic wipers, the
wipers operate in intermittent mode.
Have them checked by a CITROËN dealer or a
qualified workshop.

64
Safety
General safety
recommendations
Do not remove the labels attached in
different places on your vehicle. They
include safety warnings as well as
identification information for the vehicle.
For all work on your vehicle, use a
qualified workshop that has the technical
information, skills and equipment required, all
of which a CITROËN dealer is able to
provide.
Depending on country regulations,
certain safety equipment may be
mandatory: high visibility safety vests,
warning triangles, breathalysers, spare bulbs,
spare fuses, fire extinguisher, first aid kit, mud
flaps at the rear of the vehicle, etc.
Installing electrical accessories:
– The fitting of electrical equipment or accessories not approved by CITROËN may
cause excessive current consumption and
faults and failures with the electrical system
of your vehicle. Contact a CITROËN dealer
for information on the range of approved
accessories.
– As a safety measure, access to the diagnostic socket, used for the vehicle's
electronic systems, is reserved strictly for
CITROËN dealers or qualified workshops,
equipped with the special tools required (risk
of malfunctions of the vehicle's electronic
systems that could cause breakdowns or
serious accidents). The Manufacturer cannot
be held responsible if this advice is not
followed.
– Any modification or adaptation not intended or authorised by CITROËN or carried out
without meeting the technical requirements
defined by the Manufacturer will result in the
suspension of the commercial warranty.
Installation of accessory radio
communication transmitters
Before installing a radio communication
transmitter with an external aerial, you must
without fail contact a CITROËN dealer for
the specification of transmitters which can
be fitted (frequency, maximum power, aerial
position, specific installation requirements),
in line with the Vehicle Electromagnetic
Compatibility Directive (2004/104/EC).
Declarations of conformity for radio
equipment
The relevant certificates are available on the
http://service.citroen.com/ACddb/ website.
Hazard warning lamps


► Pressing the red button causes all the direction indicators to flash.
They can operate with the ignition off.
Automatic operation of hazard warning lamps
When braking in an emergency, depending on
the rate of deceleration, the hazard warning
lamps come on automatically. They switch off
automatically when you next accelerate.
They can be turned off by pressing the button
again.
Horn

► Press the central part of the steering wheel.
Emergency or assistance
call



* In accordance with the general conditions of use of the service, available from dealers and subject to technological and technical limitations.
** In areas covered by ‘Localised Emergency Call’ and ‘Localised Assistance Call’. The list of countries covered and telematic services provided is available from dealers or on the website for your country .

65
Safety
5Horn

► Press the central part of the steering wheel.
Emergency or assistance
call



* In accordance with the general conditions of use of the service, available from dealers and subject to technological and technical limitations.
** In areas covered by ‘Localised Emergency Call’ and ‘Localised Assistance Call’. The list of countries covered and telematic services provided is available from dealers or on the website for your country .
Localised Emergency Call
(PE112)
► In an emergency, press button 1 for more
than 2 seconds.
The lighting of the indicator lamp and a voice
message confirm that the call has been made to
the emergency services *.
‘Localised Emergency Call’ immediately locates
your vehicle and puts you in contact with the
appropriate emergency services **.
► Pressing again immediately cancels the request.
The indicator lamp flashes when the vehicle
data is sent, and then remains lit when
communication is established.
If an impact is detected by the airbag
control unit, an emergency call is made
automatically, independently of the
deployment of any airbags.
‘Localised Emergency Call’ is a service
that can be accessed free of charge.
System operation
– Upon switching on the ignition, if the indicator lamp lights up red, then green, and then goes
out: the system is operating correctly.
– If the indicator lamp is fixed red: system malfunction– If the indicator lamp flashes red: replace the emergency battery.
In the latter two cases, emergency and
assistance call services may not work.
Contact a dealer or a qualified repairer as soon
as possible.
The system fault does not prevent the vehicle from being driven.
Data processing
All processing of personal information
by the "Localised Emergency Call" system
(PE112) complies with the framework for
protection of personal information established
by Regulation 2016/679 (GDPR) and
Directive 2002/58/EC of the European
Parliament and the Council, and in particular,
seeks to protect the vital interests of the
data subject, in accordance with Article 6.1, paragraph d) of Regulation 2016/679.
Personal information processing is strictly
limited to the management of the "Localised
Emergency Call" system used with the “112”
European single emergency call number.
The "Localised Emergency Call" system is
able to collect and process only the following

66
Safety
data relating to the vehicle: chassis number,
type (passenger vehicle or light commercial
vehicle), fuel type or power source, most
recent three locations and direction of travel,
and a timestamped log file recording the
automatic activation of the system.
The recipients of the processed data are the
emergency call handling centres designated
by the relevant national authorities in the
territory in which they are located, enabling
priority reception and handling of calls to the
“112” emergency number.
Data storage
Data contained in the system’s memory
is not accessible from outside the system until
a call is made. The system is not traceable
and is not continuously monitored in its
normal operating mode.
The data in the system's internal memory is
automatically and continuously erased. Only
the vehicle’s three most recent locations are
stored.
When an emergency call is triggered, the data
log is stored for no more than 13 hours.
* According to the geographic coverage of ‘Localised Emergency Call’, ‘Localised Assistance Call’ and the official national language chosen by the owner of the vehicle.
The list of countries covered and telematic services provided is available from dealers or on the website for your country .
Access to data
You have the right to access the data
and, if necessary, submit a request to
rectify, erase or restrict the processing of
any personal information not processed in
accordance with the provisions of Regulation
2016/679 (GDPR). Third parties to which data
has been communicated shall be notified of
any rectification, erasure or restriction carried
out in accordance with the aforementioned
Directive, unless doing so would be
impossible or require a disproportionate effort.
You also have the right to lodge a complaint
with the relevant data protection authority.
Localised Assistance Call
► If the vehicle breaks down, press button 2
for more than 2 seconds to request assistance
(confirmed by a voice message *).
► Pressing again immediately cancels the request.
Privacy mode allows you to manage the
level of sharing (data and/or position)
between your vehicle and the CITROËN
brand.
It can be configured in the Settings menu on
the touch screen.
By default, depending on equipment,
deactivate/reactivate geolocation by
simultaneously pressing the 2 buttons, then
press the "Localised Assistance Call" button
to confirm.
If you purchased your vehicle outside the
CITROËN dealer network, we invite you
to have a dealer check the configuration of
these services and, if desired, modify them to
suit your wishes. In a multilingual country,
configuration is possible in the official national
language of your choice.
For technical reasons, in particular to
improve the quality of telematic services
for customers, the Manufacturer reserves the
right to carry out updates to the vehicle's
on-board telematic system at any time.
If you benefit from the Citroën Connect
Box offer with the SOS and Assistance
Pack included, there are additional services
available to you in your personal space, via
the website for your country.
For information about the SOS and
Assistance Pack, please refer to the general
conditions for these services.
Electronic stability control
(ESC)
The electronic stability control programme includes the following systems:
– Anti-lock braking system (ABS) and Electronic brake force distribution (EBFD).– Emergency braking assistance (EBA).– Anti-slip regulation (ASR).– Dynamic stability control (DSC).
Anti-lock braking system
(ABS) and Electronic brake
force distribution (EBFD)
These systems enhance the vehicle’s stability
and handling during braking, and enable greater
control while cornering, particularly on poor or
slippery road surfaces.
ABS prevents wheel locking in the event of
emergency braking.
EBFD manages the braking pressure wheel by
wheel.
This warning lamp comes on fixed in the event of an ABS malfunction.
The vehicle retains conventional braking. Drive
carefully at a moderate speed.
Contact a CITROËN dealer or a qualified
workshop as soon as possible.
This warning lamp, when lit together with the STOP and ABS warning lamps,
accompanied by a message and an audible
signal, indicates an EBFD malfunction.

67
Safety
5Electronic stability control
(ESC)
The electronic stability control programme includes the following systems:
– Anti-lock braking system (ABS) and Electronic brake force distribution (EBFD).– Emergency braking assistance (EBA).– Anti-slip regulation (ASR).– Dynamic stability control (DSC).
Anti-lock braking system (ABS) and Electronic brake
force distribution (EBFD)
These systems enhance the vehicle’s stability
and handling during braking, and enable greater
control while cornering, particularly on poor or
slippery road surfaces.
ABS prevents wheel locking in the event of
emergency braking.
EBFD manages the braking pressure wheel by
wheel.
This warning lamp comes on fixed in the event of an ABS malfunction.
The vehicle retains conventional braking. Drive
carefully at a moderate speed.
Contact a CITROËN dealer or a qualified
workshop as soon as possible.
This warning lamp, when lit together with the STOP and ABS warning lamps,
accompanied by a message and an audible
signal, indicates an EBFD malfunction.
You must stop as soon as it is safe to do so.
Contact a CITROËN dealer or a qualified
workshop.
The normal operation of the ABS may result in slight vibrations in the brake
pedal.
When braking in an emergency, press
very firmly and maintain this pressure.
When changing wheels (tyres and rims),
ensure that these are approved for your
vehicle.
After an impact, have these systems checked by a CITROËN dealer or a
qualified workshop.
Emergency braking
assistance (EBA)
In an emergency, this system enables you
to reach the optimum braking pressure more
quickly and therefore reduce the stopping
distance.
It is triggered in relation to the speed at which
the brake pedal is pressed. This is felt by a
reduction in the resistance of the pedal and an
increase in braking efficiency.
Anti-slip regulation (ASR) / Dynamic stability control
(DSC)
Anti-slip regulation optimises traction using
engine braking and by applying the brakes on
the driving wheels to avoid wheel spinning. It
also enhances the vehicle's directional stability
while accelerating.
If there is a difference between the vehicle’s
trajectory and the path desired by the driver, the
dynamic stability control system automatically
uses engine braking and the brakes on one or
more wheels to return the vehicle to the desired
path, within the limits of the laws of physics.
These systems are activated automatically every
time the vehicle is started.
They come into operation in the event of a grip
or trajectory problem.
This warning lamp on the instrument panel flashes to indicate that they are
operating.
Deactivation / Reactivation
In exceptional conditions (starting a vehicle stuck
in mud, immobilised in snow, on soft ground,
etc.), it may be useful to deactivate the ASR
system to freely spin the wheels and regain
traction.
Reactivate the system as soon as the level of
grip permits.
It is set via the Driving / Vehicle touch
screen menu.

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Safety
► Or, depending on version, turn the “Grip control” knob to this position.Deactivation is confirmed by the illumination of this indicator lamp in the
instrument panel and the display of a message.
The ASR system is reactivated automatically
every time the ignition is switched back on or
from 31 mph (50 km/h).Reactivation is manual below 31 mph (50 km/h).
Malfunction
In the event of a system malfunction, this warning lamp comes on, accompanied by
an onscreen message and audible signal.
Contact a CITROËN dealer or a qualified
workshop to have the systems checked.
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 used by CITROËN dealers.
The use of snow tyres is recommended, to
ensure that these systems remain effective
in winter conditions. All four wheels must be
fitted with tyres approved for the vehicle.
Grip control
A special, patented traction control system which improves driveability on snow, mud and sand.
This system, optimised for operation in a range
of conditions, enables you to manoeuvre in most
slippery conditions (encountered during normal
passenger car use).
When combined with all-season Peak Mountain
Snow Flake tyres, this system offers a
compromise between safety, grip and driveability.
The accelerator pedal should be pressed
sufficiently to allow the system to harness the
power of the engine. Operation at high engine
speeds is completely normal.
A five-position selector knob allows you to
choose the setting best suited to the driving
conditions encountered.
An indicator lamp associated with each mode
comes on, accompanied by the display of a
message to confirm your choice.
Operating modes


Standard (ESC)
This mode is calibrated for a low level of wheel spin, based on the different levels
of grip normally encountered on the road.
Whenever the ignition is switched off, the
system automatically resets to this mode.
Snow
This mode adapts its strategy to the conditions of grip encountered for each of
the two front wheels on moving off.
(mode active up to 50 mph (80 km/h))
All terrain (mud, damp
grass, etc.)
This mode, when moving off, allows considerable spin on the wheel with the
least grip to optimise clearing of the mud and to
regain grip. At the same time, the wheel with the
most grip is controlled in such a way as to
transmit as much torque as possible.
When moving, the system optimises wheel spin
to respond to the driver's requirements as fully
as possible.
(mode active up to 31 mph (50 km/h))
Sand
This mode allows little spin on the two driving wheels at the same time to allow
the vehicle to move forward and limit the risks of
getting stuck in the sand.
(mode active up to 75 mph (120 km/h))
Do not use the other modes on sand as
the vehicle may become stuck.
You can deactivate the ASR and DSC systems by turning the knob to the "OFF "
position.
The ASR and DSC systems will no longer act on the operation of the engine

69
Safety
5All terrain (mud, damp grass, etc.)
This mode, when moving off, allows considerable spin on the wheel with the
least grip to optimise clearing of the mud and to
regain grip. At the same time, the wheel with the
most grip is controlled in such a way as to
transmit as much torque as possible.
When moving, the system optimises wheel spin
to respond to the driver's requirements as fully
as possible.
(mode active up to 31 mph (50 km/h))
Sand
This mode allows little spin on the two driving wheels at the same time to allow
the vehicle to move forward and limit the risks of
getting stuck in the sand.
(mode active up to 75 mph (120 km/h))
Do not use the other modes on sand as
the vehicle may become stuck.
You can deactivate the ASR and DSC systems by turning the knob to the "OFF "
position.
The ASR and DSC systems will no longer act on the operation of the engine
or of the brakes in the event of a change of
trajectory.
These systems are reactivated automatically
from 31 mph (50 km/h) and whenever the ignition is switched on.
Recommendations
The vehicle is designed principally to
drive on tarmac roads, but it allows you to
occasionally drive on other less passable
terrain.
However, it does not permit off-road driving
such as:
– driving on terrain which could damage the underbody or strip away components (fuel
pipe, fuel cooler, etc.) due to obstacles or
stones in particular,
– driving on terrain with steep gradients and poor grip,– crossing a waterway .
Hill Assist Descent
System that provides assistance when
descending on loose or soft surfaces (gravel,
mud, etc.) or a steep gradient.
This system reduces the risk of slip or loss of
control of the vehicle when descending, whether
going forward or in reverse.
During a descent, it assists the driver in
maintaining a constant speed, depending on the
gear engaged, while progressively releasing the
brakes.
For the system to activate, the slope
must be greater than 5%.
The system can be used with the gearbox in
neutral.
Otherwise engage a gear corresponding to
the speed to prevent the engine stalling.
With an automatic gearbox, the system can
be used with the selector at N, D or R.
When the system is regulating, the Active
Safety Brake system is automatically
deactivated.
Operation
Switching on
By default, the system is not selected.
The state of the function is not saved when the
ignition is switched off.
The driver can select the system when the
engine is running, when the vehicle is stationary
or when moving at speeds up to approximately
31 mph (50 km/h).

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Safety



► To select the system, at speeds below 31 mph (50 km/h), press this button until its indicator lights up; this lamp appears in green
in the instrument panel.
The system becomes active at speeds below 19
mph (30 km/h).► When the vehicle begins its descent, you can release the accelerator and brake pedals; the
system regulates the speed:
– if the gearbox is in first or second gear, the speed decreases and the indicator lamp flashes rapidly,– if the gearbox is in neutral or if the clutch pedal is depressed, the speed decreases and the
indicator lamp flashes slowly; in this case, the maintained descent speed is lower.
On a descent, with the vehicle stationary, if you
release the accelerator and brake pedals, the
system will release the brakes to set the vehicle
gradually in motion.
The brake lamps light up automatically when the
system is regulating.
If the speed exceeds 19 mph (30 km/h), regulation is paused automatically, the
indicator lamp goes back to grey in the instrument panel, but the green indicator lamp in
the button remains on.
Regulation resumes automatically when the
speed falls below 19 mph (30 km/h) again, if the slope and pedal release conditions are met.
You can depress the accelerator or brake pedal
again at any time.
Switching off


► Press this button until its indicator lamp goes off; the indicator goes off in the instrument panel.
Above 45 mph (70 km/h), the system is
automatically deactivated; the indicator lamp in
the button goes off.
Malfunction
In the event of a system malfunction, this warning lamp comes on on the instrument
panel, accompanied by an onscreen message.
Have the system checked by a CITROËN dealer
or a qualified workshop.
Seat belts
Inertia reel
The seat belts are equipped with an inertia reel
which allows the strap length to automatically
adjust to your shape. 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 limiter
This system reduces the pressure of the seat
belt on the chest of the occupant, thus improving
their protection.
In the event of an impact
Depending on the nature and
seriousness of the impacts, the pyrotechnic
device may trigger before and independently
of airbag deployment. Deployment of the
pretensioners is accompanied by a slight
discharge of harmless smoke and a noise,
due to the activation of the pyrotechnic cartridge incorporated in the system.
In all cases, the airbag warning lamp comes
on.
Following an impact, have the seat belt
system checked, and if necessary replaced,
by a CITROËN dealer or a qualified
workshop.
Front seat belts

The front seat belts are fitted with a pyrotechnic
pretensioning system and a force limiting
system.