tow CITROEN C4 AIRCROSS DAG 2021 Handbook (in English)

3
Contents


bit.ly/helpPSA


Blind Spot Monitoring System 11 3
Parking sensors 11 4
Top Rear Vision 11 6
Park Assist 11 8
7Practical information
Compatibility of fuels 123
Refuelling 123
Misfuel prevention (Diesel) 124
Snow chains 124
Towbar with quickly detachable towball 125
Towing device 128
Energy economy mode 128
Roof bars 129
Bonnet 130
Engine compartment 131
Checking levels 131
Checks 133
AdBlue® (BlueHDi) 135
Advice on care and maintenance 137
8In the event of a breakdown
Running out of fuel (Diesel) 139
Tool kit 139
Temporary puncture repair kit 140
Spare wheel 143
Changing a bulb 146
Changing a fuse 150
12 V battery 152
Towing 156
9Technical data
Engine technical data and towed loads 158
Petrol engines 159
Diesel engines 161
Dimensions 162
Identification markings 162
10Bluetooth® audio system
First steps 164
Steering mounted controls 164
Menus 165
Radio 166
DAB (Digital Audio Broadcasting) radio 167
Media 168
Telephone 170
Frequently asked questions 173
11CITROËN Connect Radio
First steps 176
Steering mounted controls 177
Menus 178
Applications 179
Radio 179
DAB (Digital Audio Broadcasting) radio 181
Media 181
Telephone 183
Settings 186
Frequently asked questions 188
12CITROËN Connect Nav
First steps 190
Steering mounted controls 191
Menus 192
Voice commands 193
Navigation 195
Connected navigation 197
Applications 199
Radio 202
DAB (Digital Audio Broadcasting) radio 203
Media 204
Telephone 205
Settings 208
Frequently asked questions 210
 ■
Alphabetical index
Access to additional videos

26
Access
document and, if possible, the label bearing the key code.
The CITROËN dealer will be able to retrieve the
key code and the transponder code required to
order a new key.
Complete unlocking /
locking of the vehicle with
the key
These procedures should be used in the
following cases:
– remote control battery flat,– remote control fault,– vehicle in an area subject to strong electromagnetic interference.
In the first case, you can also replace the remote
control battery.
Refer to the corresponding section.
In the second case, you can also reinitialise the
remote control.
Refer to the corresponding section.


► Insert the key in the door lock barrel.► Turn the key towards the front of the vehicle to unlock it, or towards the rear to lock it.
the front door handles (at the markings) to lock
the vehicle.
It is not possible to lock the vehicle if one of the
keys is left inside the vehicle.
The flashing of the direction indicators for
a few seconds signals:
– unlocking of the vehicle for versions without alarm;– deactivation of the alarm for other versions.
Deadlocking
Deadlocking renders the interior door
controls inoperative. It also deactivates
the central locking button.
The horn remains operational.
Never leave anyone inside the vehicle when it
is deadlocked.


► With the electronic key in recognition zone A, press your finger or thumb on the handle of
one of the front doors (at the markings) to lock
the vehicle.
► Within five seconds, press the front door handle again to deadlock the vehicle.
Advice
Remote control
The remote control is a sensitive, high-
frequency device; avoid handling it in your
pocket, due to the risk of unintentionally
unlocking the vehicle.
Avoid pressing the remote control buttons
while out of range of the vehicle, due to
the risk of rendering the remote control
inoperative. It would then be necessary to
reset it.
The remote control does not work when the key is in the ignition switch, even when the
ignition is switched off.
Anti-theft protection
Do not modify the electronic vehicle
immobiliser, as this might result in
malfunctions.
For vehicles with a key ignition switch,
remember to remove the key and turn the
steering wheel to engage the steering lock.
Locking the vehicle
Driving with the doors locked could make
it more difficult for the emergency services to
enter the vehicle in an emergency.
As a safety precaution, remove the key from
the ignition or take the electronic key with you
when leaving the vehicle, even for a short
time.
Purchasing a second-hand vehicle
Have the key codes memorised by a
CITROËN dealer, to ensure that the keys in
your possession are the only ones able to
start the vehicle.
In order to preserve the battery in the
electronic key and the vehicle's battery:
– All of the "hands-free" functions go into extended standby after 21 days of non-use.
To restore these functions, unlock the vehicle
using the remote control and start the engine.
Electrical interference
The electronic key may not operate if
close to certain electronic devices: telephone
(switched on or on standby), laptop computer,
strong magnetic fields, etc.
Do not throw remote control batteries away, as they contain metals that are
harmful to the environment. Take them to an
approved disposal point.
Emergency procedures
Lost keys, remote control,
electronic key
Visit a CITROËN dealer with the vehicle's
registration certificate, a personal identification

27
Access
2document and, if possible, the label bearing the
key code.
The CITROËN dealer will be able to retrieve the
key code and the transponder code required to
order a new key.
Complete unlocking /
locking of the vehicle with
the key
These procedures should be used in the
following cases:
– remote control battery flat,– remote control fault,– vehicle in an area subject to strong electromagnetic interference.
In the first case, you can also replace the remote
control battery.
Refer to the corresponding section.
In the second case, you can also reinitialise the
remote control.
Refer to the corresponding section.


► Insert the key in the door lock barrel.► Turn the key towards the front of the vehicle to unlock it, or towards the rear to lock it.
► Turn the key rearwards again within 5 seconds to deadlock the vehicle.
For versions without alarm, the lighting of the
direction indicators for a few seconds confirms
that the procedure has completed correctly.
If the alarm is activated, the siren sounds
on opening the door; switch on the
ignition to stop it.
If your vehicle is fitted with an alarm, this
function will not be activated when
locking with the key.
Without central locking
These procedures should be used in the
following cases:
– central locking fault,– battery disconnected or discharged.
In the event of a fault with the central
locking system, it is essential to
disconnect the battery to lock the boot and so
ensure complete locking of the vehicle.
Driver's door
► Turn the key towards the rear of the vehicle to lock it, or towards the front to unlock it.
Passenger doors
Unlocking a door► Pull the interior opening control for the door .
Locking► Open the doors.► For the rear doors, check that the child lock is not on.
Refer to the corresponding section.


► Remove the black cap on the edge of the door, using the key.► Without forcing, insert the key into the aperture; then, without turning it, move the latch
sideways towards the inside of the door.
► Remove the key and refit the black cap.► Close the doors and check from the outside that the vehicle is locked.
Changing the battery
A message is displayed on the instrument panel
when the battery needs changing.

31
Access
2Interior volumetric monitoring
The system checks for any variation in volume in
the passenger compartment.
The alarm is triggered if anyone breaks a
window, enters the passenger compartment or
moves inside the vehicle.
Anti-tilt monitoring
The system checks for any change in the attitude
of the vehicle.
The alarm goes off if the vehicle is lifted or
moved.
When the vehicle is parked, the alarm
will not be triggered if the vehicle is
knocked.
Self-protection function
The system checks for the putting out of service
of its components.
The alarm is triggered if the battery, the central
control or the siren wiring is put out of service or
damaged.
For all work on the alarm system, contact
a CITROËN dealer or a qualified
workshop.
Locking the vehicle with full
alarm system
Activation
– Switch off the ignition and exit the vehicle.
► Lock or deadlock the vehicle using the remote control or with the “Keyless Entry
and Starting” system.
When the monitoring system is active, the
indicator lamp in the button flashes once per
second and the direction indicators come on for
about 2 seconds.
The exterior perimeter monitoring is activated
after 5 seconds and the interior volumetric and
anti-tilt monitoring after 45 seconds.
If an opening (door, boot, bonnet, etc.) is
incorrectly closed, the vehicle is not
locked, but the exterior perimeter monitoring
will be activated after 45 seconds, at the
same time as the interior volumetric and
anti-tilt monitoring.
Deactivation
► Press the unlocking button on the remote control.
or
► Unlock the vehicle with the Keyless Entry and
Starting system.The monitoring system is deactivated: the indicator lamp in the button goes off and
the direction indicators flash for about 2 seconds.
When the vehicle automatically locks
itself again (as happens if a door or boot
is not opened within 30 seconds of
unlocking), the monitoring system is
automatically reactivated.
Locking the vehicle
with exterior perimeter
monitoring only
Disable volumetric monitoring to avoid unwanted
alarm triggering in certain cases, such as:
– Slightly open window .– Washing the vehicle.– Changing a wheel.– Towing your vehicle.– Transport on a ship or ferry.
Deactivating the interior volumetric
and anti-tilt monitoring
► Switch off the ignition and within 10 seconds, press this button until the
indicator lamp is on continuously.
► Get out of the vehicle.► Lock the vehicle immediately using the remote control or the "Keyless Entry and
Starting" system.
The exterior perimeter monitoring alone is
activated: the indicator lamp flashes once per
second.
To take effect, this deactivation must be carried
out after each time the ignition is switched off.
Reactivating the interior volumetric
and anti-tilt monitoring
► Deactivate the exterior perimeter monitoring by unlocking the vehicle using the remote control
or the Keyless Entry and Starting system.

33
Access
2tip of the high-pressure lance at least 30
centimetres from the seals.
Never leave the vehicle with the sunroof
open.
Operation
When opening the sunroof fully, the movable
glass moves to a partially open position, then
slides over the roof. All intermediate positions
are allowed.
Depending on the speed of the vehicle,
the partially open position may vary to
improve the acoustics.
Before operating the sunroof or blind
control buttons, ensure that no object or
person might prevent the movement.
Be particularly aware of children when
operating the sunroof or blind.
If something is trapped when operating the
sunroof or blind, you should reverse the
movement of the sunroof or blind by pressing
the control in question.
The driver must ensure that passengers use
the sunroof and blind correctly.
Anti-pinch system
If the sunroof or blind encounters an obstacle
when closing, the movement is automatically
reversed.
The roof anti-pinch system is designed to be effective at speeds of up to 75 mph (120 km/h).
Opening / Closing
► To open the sunroof or the blind, use the part
of the button located towards the rear.
► To close the sunroof or the blind, use the part
of the button located towards the front.
Operation of buttons
► Pressing a button beyond its point of resistance directly opens or closes the sunroof
fully.
► Pressing the button again stops the current movement.► When holding a button (without going beyond the point of resistance), the movement
of the sunroof or blind stops when this button is
released.
► When the sunroof is closed: pressing once without passing the point of resistance moves it
to a partially open position.
► When the sunroof is partially open: pressing once without passing the point of resistance
opens or closes it fully.
The roof and windows, then the blind,
can be closed by holding down the door
locking control. The operation stops as soon
as the locking control is released.
Closing of the blind is limited by the
position of the sunroof: the blind cannot
go further than the front of the mobile glass.
During simultaneous movements of the
sunroof and blind, the blind automatically
stops or resumes movement depending on
the position of the sunroof.
Reinitialisation
Following reconnection of the battery or in the
event of a fault or jerky movement of the sunroof
or blind, reinitialisation is required.
► Check that nothing is interfering with the sunroof or blind and that the seals are clean.► With the ignition on, fully close the sunroof and blind.► Press and hold the front part of button B, until
the sunroof and blind move slightly, then hold for
a further 1 second before releasing.
► Wait 2 seconds and then press and hold the front part of button B. The blind and the sunroof
will open and close, one after the other. When
both are completely closed again, hold for a
further 2 seconds and release.
If there is an operating fault, restart the
whole procedure.

36
Ease of use and comfort
Correct driving position
For safety reasons, adjustments must
only be made when the vehicle is
stationary.
Before taking to the road and to make the most
of the ergonomic layout of the instruments and
controls, carry out these adjustments in the
following order:
– head restraint height.– seat backrest angle.– seat cushion height.– longitudinal seat position.– steering wheel height and reach.– rear view mirror and door mirrors.

Once these adjustments have been
made, check that the instrument panel
can be viewed correctly from your driving
position.
Front head restraints
Height adjustment

Upward:► pull the head restraint up to the desired position; the head restraint can be felt to click
into position.
Downward:
► press the lug A and push the head restraint
down to the desired position.
The adjustment is correct when the upper edge of the head restraint is level
with the top of the head.
Removing a head restraint
► Pull the head restraint up as far as it will go.► Press the lug A to release the head restraint
and remove it completely.
► Stow the head restraint securely .
Refitting a head restraint
► Introduce the head restraint rods into the guides in the seat backrest.► Push the head restraint down as far as it will go.► Press the lug A to free the head restraint and
push it down.
► Adjust the height of the head restraint.
Never drive with the head restraints
removed; they should be in place and
correctly adjusted for the occupant of the
seat.
Front seats
For safety reasons, seat adjustments
must only be made when the vehicle is
stationary.
Adjustments
Forwards-backwards

► Raise the control bar and slide the seat forwards or backwards.► Release the bar to lock the seat in position on one of the notches.
Before moving the seat backwards,
ensure that there is no person or object
that might prevent the full travel of the seat.
There is a risk of trapping or pinching
passengers if present in the rear seats or of
jamming the seat if large objects are placed
on the floor behind the seat.
Height
(driver only)

38
Ease of use and comfort
To return to the normal position, guide the
backrest backwards until it locks into place.
This position, together with that of the rear seats,
allows you to transport long objects inside the
vehicle.
Before moving the seat backwards,
ensure that there is nothing that might
prevent the full travel of the seat.
When the front passenger seat is fully folded,
only the outer rear seat behind the driver can
be occupied by a passenger.
Do not place hard, heavy or sharp
objects in the centre of the backrest to
ensure that you don't damage rear lining
behind the backrest.
When sharp deceleration occurs, objects
placed on the folded backrest can turn into
dangerous projectiles.
Heated seats

► With the engine running, use the adjustment knob to switch on and select the level of heating
required:
0
: Off.
1 : Low.
2 : Medium.
3 : High.
The front seats can be heated individually.
Prolonged use of heated seats is not
recommended for people with sensitive
skin.
There is a risk of burns for people whose
perception of heat is impaired (illness, taking
medication, etc.).
To keep the heated pad intact and to prevent
a short circuit:
– Do not place heavy or sharp objects on the seat.– Do not kneel or stand on the seat.
– Do not spill liquids onto the seat.– Never use the heating function if the seat is damp.
Rear seats
Bench seat with a fixed cushion or on rails
(depending on version) and split folding
backrests (2/3-1/3) to adapt the boot loading
space.
Rear head restraints

They have two positions:– a high position , for when the seat is in use:► pull the head restraint fully up.– a low position, for stowing, when the seat is
not in use:
► press the lug A to release the head
restraint and push it fully down.

39
Ease of use and comfort
3

The rear head restraints can be removed.
To remove a head restraint:
► release the backrest using the control 1,► tilt the backrest slightly forwards,► pull the head restraint as far up as it will go,► press the lug A to release the head restraint
and remove it completely,
► stow the head restraint.To refit a head restraint:► insert the head restraint rods into the guides in the corresponding seat backrest,► push the head restraint down as far as it will go,► press the lug A to free the head restraint and
push it down.
Never drive with passengers seated at
the rear when the head restraints are
removed; they must be in place and in the
high position.
The head restraint for the centre seat and
those for outer seats are not interchangeable.
Longitudinal seat
adjustment (depending on
version)
Folding or unfolding the seats must only
be done with the vehicle stationary.
Each 2/3 - 1/3 part can be adjusted individually.


► Raise the control and slide the bench seat forwards or backwards.
Adjusting the backrest angle (depending on
version)
Several adjustment positions are possible.

► Move the seat forward.► Pull the strap forward, then tilt the backrest to the desired position.
Sit in the seat to perform the
adjustments.
Folding the backrests
Manoeuvring the seat backrests must
only be done with the vehicle stationary.
First steps:

40
Ease of use and comfort

► Lower the head restraints.► If necessary, move the front seats forward.► Pull the seats fully back (depending on version).► Check that no person or object will interfere with folding down the backrests (clothing,
luggage, etc.).
► Check that the outer seat belts are properly tensioned along the pillars, that the central belt
is stowed and that the tongues of the three belts
are correctly in the storage position.
Depending on version, the seat backrests are
equipped with a handle (bench seat with fixed
cushions) or a strap (bench seat on rails).


► Operate backrest release handle 1 or pull
strap 2.
► Guide backrest 3 down to the horizontal
position.
If the backrest is equipped with a strap, it
it not necessary to guide it down.
If the backrest is equipped with a handle,
its red indicator is visible when it is
released.
Returning the backrests to
their original position
First check that the outer seat belts are
lying vertically alongside the backrest
latching rings.


► Put backrest 3 in the upright position and
push firmly to latch it home.
► Check that release grip 1 has properly
returned to its position and that the red indicator
is no longer visible (depending on the version
you have).
► Ensure that the outer seat belts are not trapped during the manoeuvre.
When returning the rear seat backrest to
its original position, take care not to trap
the seat belts and ensure that their buckles
are positioned correctly.
The contents of the boot may be thrown
forward - Risk of serious injury!
Steering wheel
adjustment

► When stationary, pull the control lever
to release the steering wheel adjustment
mechanism.
► Adjust the height and reach to suit your driving position.► Push the control lever to lock the steering wheel adjustment mechanism.
As a safety measure, these adjustments
should only be carried out with the
vehicle stationary.

42
Ease of use and comfort
► Turn the mirror towards the vehicle.
Electric folding
Depending on equipment, the mirrors can be
folded electrically, when the vehicle is parked.
► From the inside, with the ignition on, place control A in the
central position.
► Pull control A backwards.
► Lock the vehicle from the outside.
Electric unfolding
Door mirrors are unfolded electrically with the
remote control or the Keyless Entry and Starting
system when the vehicle is unlocked. Unless
folding was selected with control A, pull the
control backwards in the centre position.
Folding/unfolding during locking/
unlocking can be disabled. Contact a
CITROËN dealer or a qualified workshop.
If necessary, the mirrors can be folded
manually.
Rear view mirror
Equipped with an anti-dazzle system, which
darkens the mirror glass and reduces the
nuisance to the driver caused by the sun,
headlights of other vehicles, etc.
Manual model
Day/night position


► Pull the lever to change to the anti-dazzle "night” position.
► Push the lever to change to the normal "day" position.
Adjustment
► Set the mirror to the normal “day” position.
Automatic "electrochrome" model

This system automatically and progressively
transitions between day and night modes, using
a sensor that measures the light entering from
the rear of the vehicle.
To ensure optimum visibility during your manoeuvres, the mirror lightens
automatically when reverse gear is engaged.
Ventilation
Air intake
The air circulating in the passenger compartment
is filtered and originates either from the
exterior, via the grille located at the base of the
windscreen, or from the inside in air recirculation
mode.
Controls
Depending on version, the controls are
accessible in the " Air conditioning" touch
screen menu or are grouped together in the
control panel on the centre console.
The demisting/defrosting controls for the
windscreen and the rear screen are located
below the touch screen, or on the centre console
panel located below the audio system.
Air distribution

1. Windscreen demisting/defrosting vents
2. Front side window demisting/defrosting vents
3.Adjustable and closable side air vents
4. Adjustable and closable central air vents
5. Air outlets to the front footwells
6. Air outlets to the rear footwells
Advice
Using the ventilation and air
conditioning system
► To ensure that air is distributed evenly, keep the external air intake grilles at the base
of the windscreen, the nozzles, the vents, the
air outlets and the air extractor in the boot
free from obstructions.
► Do not cover the sunshine sensor located on the dashboard; this sensor is used to
regulate the automatic air conditioning
system.
► Operate the air conditioning system for at least 5 to 10 minutes once or twice a month to
keep it in perfect working order.
► If the system does not produce cold air, switch it off and contact a CITROËN dealer or
a qualified workshop.
When towing the maximum load on a steep
gradient in high temperatures, switching off
the air conditioning increases the available
engine power, enhancing the towing capacity.
Avoid driving for too long with the
ventilation off or with prolonged operation