service reset CITROEN C4 AIRCROSS DAG 2021 Handbook (in English)

7
Instruments
1LCD text instrument panel




Dials
1. Speedometer (mph or km/h).
2. Fuel level indicator.
3. Display screen.
4. Engine coolant temperature gauge.
5. Rev counter (x 1,000 rpm).
Control buttons
A.Resetting the service indicator.
Reminder of servicing information or the
remaining range with the SCR system and
the AdBlue
®.
Depending on version: go back up a level,
cancel the current operation.
B. General lighting dimmer.
Depending on version: movements in a
menu, a list; changing a value.
C. Resetting the trip distance recorder.
Depending on version: enter the configuration
menu (long press), confirm a choice (short
press).
Display screen
1.Outside temperature
2. Cruise control or speed limiter settings
Speed suggested by the Speed Limit
Recognition and Recommendation 3.
Digital speedometer (mph or km/h)
4. Gear shift indicator and/or selector position,
gear and Sport and Snow modes with an
automatic gearbox
5. Trip computer and Stop & Start time counter.
6. Display area: trip distance recorder (miles or
km), service indicator or range associated
with the AdBlue
® and the SCR system
(miles or km), total distance recorder, alert
messages or state of functions
If the vehicle is not equipped with an audio
system or touch screen, this display allows you
to configure certain equipment.
For more information on Configuring
equipment for vehicles without a screen , refer
to the corresponding section.
Matrix instrument panel

8
Instruments
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.
A serious fault with the engine, braking system,
power steering or a major electrical fault has
been detected.
Carry out (1) and then (2).
Parking brakeFixed.The parking brake is applied or not
properly released.



Dials
1. Speedometer (mph or km/h).
2. Fuel level indicator.
3. Display screen.
4. Engine coolant temperature gauge.
5. Rev counter (x 1,000 rpm).
Control buttons
A.Resetting the service indicator
Alert log display
Reminder of servicing information or the
remaining range associated with AdBlue
® and
the SCR system (miles or km)
Tyre pressure status information display
B. General lighting dimmer
C. Resetting the trip distance recorder
Display screen

1.Cruise control or speed limiter settings
Speed suggested by the Speed Limit
Recognition and Recommendation
2.
Gear shift indicator and/or selector position, gear and Sport and Snow modes with an
automatic gearbox
3. Display area: alert messages or state of
functions, trip computer, digital speedometer
(mph or km/h), range associated with the
AdBlue
® and the SCR system (miles or km),
etc.
4. Service indicator, then total distance recorder
(miles or km)
These functions are displayed successively
when the ignition is switched on.
5. Trip distance recorder (miles or km)
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.

13
Instruments
1Indicators
Engine coolant temperature
gauge



With the engine running:– in zone A, the temperature is correct,– in zone B, the temperature is too high; this
warning lamp and the central STOP warning
lamp come on in the instrument panel,
accompanied by the display of a message and
an audible signal.
You MUST stop as soon as it is safe to do so.
Wait a few minutes before switching off the
engine.
After first switching off the ignition, open the bonnet cautiously and check the
coolant level.
For more information on Checking
levels, refer to the corresponding
section.
Service indicator
The servicing information is expressed in terms
of distance (kilometres or miles) 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.
The value indicated is calculated according to the distance covered and
the time elapsed since the last service.
The alert may also be triggered close to a
due date.
Service spannerOn temporarily when the ignition is switched on.
Between 620 and 1,860 miles (1,000 and 3,000
km) remain before the next service is due.
Fixed, when the ignition is switched on.The next service is due in less than 620
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.
Resetting the service indicator
The service indicator must be reset after each
service.
► Switch off the ignition.

CHECK

► Press and hold this button.► Switch on the ignition; the distance recorder display begins a countdown.► Release the button when =0 is displayed; the
spanner disappears.
If you have to disconnect the battery
following this operation, lock the vehicle

14
Instruments
level corresponding to a range of 1,500 miles (2,400 km).
Together with the warning lamps, messages
regularly remind you of the need to top up to
avoid engine starting being prevented. Refer to
the Warning and indicator lamps section for
details of the messages displayed.
For more information on AdBlue®
(BlueHDi engines), and in particular on
topping up, refer to the corresponding section.
Warning/indicator lamps lit Action
Remaining
range


Top up.Between
1,500 miles
and 500
miles (2,400
km and 800
km)


Top up as
soon as
possible.Between
500 miles
and 62
miles (800
km and
100 km)
and wait at least 5 minutes for the reset to be
registered.
Retrieving the service information
You can access the service information at any
time.
► Press this button.The service information is displayed for a few
seconds, then disappears.
Engine oil level
indicator
(depending on version)
On versions fitted with an electric oil level
indicator, the state of the engine oil level is
displayed in the instrument panel for a few
seconds, after the servicing information.
The level read will only be correct if the
vehicle is on level ground and the engine
has been off for more than 30 minutes.
Oil level correct
This is indicated by the display of the " Oil level
correct " message.
Oil level insufficient
If the 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 level indicator fault
This is signalled by the display of the " Oil
level measurement invalid" message on the
instrument cluster.
Contact a CITROËN dealer or a qualified
workshop.
In the event of a fault with the electric
indicator, the oil level is no longer
monitored.
If the system is faulty, you must check the
engine oil level using the manual dipstick
located under the bonnet.
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.
Manually displaying the driving range
While the driving range is greater than 1,500 miles (2,400 km), it is not displayed automatically.

CHECK

► Press this button to temporarily display the driving range.You can view the range information by pressing the " Diagnostic" button after selecting the " Driving functions " tab in the
Driving / Vehicle menu.
Actions required related to a lack of AdBlue®
The following warning lamps light up when the
quantity of AdBlue® is lower than the reserve

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

167
Bluetooth® audio system
10Receiving INFO messages
The INFO function gives priority to TA alert messages. To be active, this
function needs good reception of a radio
station that transmits this type of message.
When a message is transmitted, the current
audio source (Radio, CD, USB, etc.) is
interrupted automatically to receive the INFO
message. Normal play of the media
previously playing is resumed at the end of
the message.
Make a long press on this button to display the list of categories.Select or deselect categories.
Activate or deactivate the reception of the corresponding messages.
Display TEXT INFOS
Radio text is information transmitted by
the radio station related to the station's
current programme or song.
When the radio station is displayed in the screen, press OK to display the
contextual menu.
Select "RadioText (TXT) display " and
confirm OK to save.
DAB (Digital Audio
Broadcasting) radio
Depending on version
If the current DAB radio station is not
available on FM, "DAB FM" is struck out.


1 Options display: if active but not available, the
display will be struck out.
2 Display showing the name of the current
station.
3 Preset stations, buttons 1 to 6.
Short press: select the preset radio station.
Long press: memorise a radio station.
4 Display showing the name of the “multiplex”
service being used.
5 RadioText (TXT) display for the current radio
station.
6 Represents the signal strength for the band
being listened to.
When changing region, updating the list
of preset radio stations is recommended.


Full list of radio stations and "multiplexes".
Terrestrial digital radio
Digital radio provides a superior audio
quality and also additional categories of
traffic announcements (TA INFO).
The different "multiplex / ensemble” services
offer a choice of radio stations in alphabetical
order.
Change of band (FM1, FM2, DAB, etc.)
Change of station within the same
"multiplex / ensemble".
Starting of a search for the previous / next
"multiplex / ensemble".
Long press: selection of the categories of news desired among Transport, News,
Entertainment and Special Flash (available
depending on the station).

174
Bluetooth® audio system
balance and Le-Ri balance) to the middle
position, setting the musical ambience to "None",
setting loudness correction to "Active" in CD
mode and "Inactive" in Radio mode.
The preset stations do not function (no
sound, 87.5 MHz is displayed, etc.).
The wrong waveband is selected.
► Press the BAND button to return to the waveband (FM, FM2, DAB, AM) on which the
stations are preset.
Traffic announcement (TA) is shown but I
receive no traffic information.
The radio station is not part of the regional traffic
information network.
► Tune to a radio station that broadcasts traffic information.
The reception quality of the tuned radio
station gradually deteriorates or the station
presets are inoperative (no sound, 87.5 MHz
is displayed, etc.).
The vehicle is too far from the selected station’s
transmitter, or no transmitter is present in the
geographical area.
► Activate the RDS function to allow the system to check for a more powerful transmitter in the
area.
The environment (hills, buildings, tunnels,
basement car parks, etc.) may block reception,
including in RDS mode.
This is a perfectly normal phenomenon, and is
not indicative of an audio system malfunction.The aerial is absent or has been damaged (for
example when going through an automatic car
wash or in an underground car park).
► Have the aerial checked by a dealer
.The sound intermittently cuts out for 1 or 2
seconds in radio mode.
During this brief sound cut-out, the RDS
searches for another frequency giving better
reception of the station.
► Switch off the RDS function if the phenomenon occurs too frequently and always
on the same route.
Media
The Bluetooth connection is cut.
The battery in the peripheral device may not be
sufficiently charged.
► Charge the battery in the peripheral device.The message "USB device error" is displayed
in the screen.
The USB stick has not been recognised, or may
be corrupted.
► Reformat the USB memory stick.
The CD is systematically ejected or is not
played.
The CD is upside down, cannot be read, does
not contain audio files or contains audio files of a
format not recognised by the audio system.
The CD is protected by an anti-pirating system
not recognised by the audio system.
► Check that the CD is inserted in the player the right way up.
► Check the condition of the CD: the CD cannot be played if it is too badly damaged.► Check the content in the case of a burned CD: read the recommendations in the "Audio"
section.
Due to poor quality, certain burned CDs will not
be played by the audio system.
The CD audio quality is is poor.
The CD is scratched or of poor quality.
► Insert good quality CDs and store them in suitable conditions.
The audio settings (bass, treble, ambience) are
unsuitable.
► Return bass and treble settings to 0, without selecting an ambience.
I am unable to play the music files on my
smartphone via the USB port.
Depending on the smartphone, access by the
audio system to music on the smartphone may
have to be approved on the latter.
► Manually activate the MTP profile on the smartphone (USB settings menu).
Telephone
I am unable to access my voicemail.
Few telephones or service providers allow the
use of this function.
► Call your voicemail, via the telephone menu, using the number provided by your operator.
I am unable to access my directory of
contacts.
► Check the compatibility of your telephone.

188
CITROËN Connect Radio
Frequently asked
questions
The following information groups together the answers to the most frequently asked questions
concerning the system.
Radio
The reception quality of the tuned radio
station gradually deteriorates or the station
presets are not working (no sound, 87.5 MHz
is displayed, etc.).
The vehicle is too far from the selected station’s
transmitter, or no transmitter is present in the
geographical area.
► Activate the "RDS" function in the upper bar to enable the system to check whether there is
a more powerful transmitter in the geographical
area.
The environment (hills, buildings, tunnels,
basement car parks, etc.) is blocking reception,
including in RDS mode.
This is a perfectly normal phenomenon, and is
not indicative of an audio system malfunction.
The aerial is missing or has been damaged
(for example while entering a car wash or
underground car park).
► Have the aerial checked by a dealer .I cannot find some radio stations in the list of
received stations.
The name of the radio station changes.
The station is no longer received or its name has
changed in the list.
► Press the round arrow on the "List" tab on the "Radio" page.
Some radio stations send other information
in place of their name (the title of the song for
example).
The system interprets these details as the station
name.
► Press the round arrow on the "List" tab on the "Radio" page.
Media
Playback of my USB memory stick starts only
after a very long wait (around 2 to 3 minutes).
Some files supplied with the memory stick may
greatly slow down access to reading the memory
stick (multiplication by 10 of the cataloguing
time).
► Delete the files supplied with the memory stick and limit the number of sub-folders in the
file structure on the memory stick.
Some characters in information about the
currently playing media are not displayed
correctly.
The audio system is unable to process certain
types of character.
► Use standard characters to name tracks and folders.
Playback of streaming files does not start.
The connected device does not automatically
launch playback.
► Start playback from the device.Track names and playing times are not
displayed on the audio streaming screen. The Bluetooth profile does not allow the transfer
of this information.
Telephone
I cannot connect my Bluetooth telephone.
The telephone's Bluetooth function may be
switched off or the telephone may not be visible.
► Check that the telephone has Bluetooth switched on.► Check in the telephone settings that it is "visible to all".
The Bluetooth telephone is not compatible with
the system.
► Check the compatibility of the telephone on the Brand's website (services).
Android Auto and CarPlay do not work.
Android Auto and CarPlay may not activate if the
USB cables are of poor quality.
► Use genuine USB cables to ensure compatibility.
The volume of the telephone connected in
Bluetooth mode is inaudible.
The volume depends on both the system and the
telephone.
► Increase the volume of the audio system, to maximum if required, and increase the volume of
the telephone if necessary.
Ambient noise affects the quality of the
telephone call.
► Reduce ambient noise (close windows, reduce ventilation, slow down, etc.).
The contacts are not listed in alphabetical
order.
Some telephones offer display options. Depending on the settings chosen, contacts can
be transferred in a specific order.
►
Modify the telephone directory display settings.
Settings
When the treble and bass settings are
changed, the ambience is deselected.
When the ambience is changed, the treble
and bass settings are reset.
Selecting an ambience imposes the treble and
bass settings, and vice versa.
► Modify the treble and bass or ambience settings to obtain the desired musical ambience.
When the balance settings are changed, the
distribution is deselected.
When the distribution setting is changed, the
balance settings are deselected.
Selecting a distribution setting imposes the
balance settings, and vice versa.
► Modify the balance setting or the distribution setting to obtain the desired sound quality.
There is a difference in sound quality
between audio sources.
To allow for optimal listening quality, the sound
settings can be tailored to different audio
sources, which can generate audible differences
when changing source.
► Check that the sound settings are appropriate to the sources listened to. Adjust the sound
functions to the middle position.

198
CITROËN Connect Nav
Network connection provided by the
user
USB connectionConnect a USB cable.The smartphone charges when connected
by a USB cable.
Bluetooth connection
Activate the Bluetooth function on the telephone and ensure that it is visible to
all (see the "Applications" section).
Wi-Fi connection
Select a Wi-Fi network found by the system and connect to it (see the
"Applications" section).
Restrictions of use:– With CarPlay®, connection sharing is
only with a Wi-Fi connection.
– With MirrorLinkTM, connection sharing is
only with a USB connection.
The quality of services depends on the quality
of the network connection.
With the arrival of "TOMTOM TRAFFIC", the services are available.
The services offered with connected navigation are as follows.
A Connected Services pack:
– Weather,– Filling stations,– Car park,– Traffic,– POI local search.
A Danger zone pack (option).
The processes and standards are constantly changing; for the
communication process between the
smartphone and the system to work correctly,
we recommend that you update the
operating system of the smartphone as
well as the date and time of the
smartphone and the system.
Settings specific to
connected navigation
In the "Settings" menu, you can create a
profile for an individual or for a group of
people with shared interests, and configure a
wide range of settings (radio presets, audio
settings, navigation history, favourite contacts,
etc.). Settings are applied automatically.
Press Navigation to display the main
page.
Press the "MENU" button to access the
secondary page.
Select "Settings".
Select "Map".
Activate or deactivate:– "Allow declaration of danger zones ".– “Guidance to final destination on foot "– “Authorize sending information"
These settings must be configured for each
profile.
Select "Alerts".
Activate or deactivate “Warn of danger
zones”.
Select this button.
Activate: Give an audible warning
For access to connected navigation, you
must tick the option: "Authorize sending
information "
Danger zone alerts may or may not be
displayed, depending on the applicable
legislation and subscription to the
corresponding service.
Declaration of "Danger
zones"
To send information on the declaration
of danger zones, you must tick the option: "Allow declaration of danger zones "
Press Navigation to display the main
page.
Press the "Declare a new danger zone"
button located in the upper bar on the
touch screen
Select the "Type” option to select the type
of "Danger area".
Select the ""Speed" option and enter it
using the virtual keypad.
Press "OK" to save and send the
information.
"Danger zones" pack
updates
Press Settings to display the primary
page.
Press the "OPTIONS " button to go to the
secondary page.
Select "System administration".
Select the "System info" tab.
Select "View" to display the versions of
the different modules installed in the
system.
Select "Update(s) due".
You can download the system and map updates from the Brand’s website.
The update procedure can also be found on
the website.
Displaying weather
information
Press Navigation to display the main
page.
Press this button to display the list of services.

202
CITROËN Connect Nav
Connection sharing
The system offers to connect the telephone with
3 profiles:
– "Telephone" (hands-free kit, telephone only),– "Streaming" (streaming: wireless playing of
the audio files on the telephone),
– "Mobile internet data ".
The "Mobile internet data " profile must
be activated for connected navigation
(where the vehicle does not have "Emergency
and assistance call" services), having first
activated sharing of this connection on your
smartphone.
Select one or more profiles.
Press "OK" to confirm.
Wi-Fi connection
Network connection via the smartphone's Wi-Fi.Press Connect-App to display the main
page.
Press the "OPTIONS " button to access the
secondary page.
Select "Wi-Fi network connection ".
Select the "Secured", "Not secured" or
"Stored” tab.
Select a network.
Using the virtual keypad , enter the Wi-Fi
network "Key" and "Password".
Press "OK" to establish the connection.
The Wi-Fi connection and Wi-Fi
connection sharing are exclusive.
Wi-Fi connection sharing
Creation of a local Wi-Fi network by the system.Press Connect-App to display the main
page.
Press the "OPTIONS " button to access the
secondary page.
Select "Share Wi-Fi connection ".
Select the "Activation" tab to activate or
deactivate Wi-Fi connection sharing.
And/or
Select the "Settings" tab to change the system’s
network name and password.
Press "OK" to confirm.
To protect against unauthorised access and to make your systems as secure as
possible, we recommend using a complex
password or security code.
Managing connections
Press Connect-App to display the main
page. Press the "OPTIONS
" button to access the
secondary page.
Select "Manage connection ".
With this function, you can view the access to
connected services, check the availability of
connected services and change the connection
mode.
Radio
Selecting a station
Press Radio Media to display the main
page.
Press on "Frequency".
Press one of the buttons to perform an
automatic search for radio stations.
Or
Move the slider to manually search for
frequencies up or down.
Or
Press Radio Media to display the main
page.
Press the "OPTIONS " button to go to the
secondary page.
Select "Radio stations" on the secondary
page.
Press on "Frequency".
Enter the values using the virtual keypad.
First enter the units then click on the
decimals field to enter the figures after the
decimal point.
Press "OK" to confirm.
Radio reception may be affected by the
use of electrical equipment not approved
by the Brand, such as a USB charger
connected to the 12 V socket.
The exterior environment (hills, buildings,
tunnels, basement car parks, etc.) may
block reception, including in RDS mode.
This phenomenon is perfectly normal in the
context of radio wave transmission, and
in no way indicative of an audio system
malfunction.
Presetting a station
Select a radio station or frequency.
(refer to the corresponding section)
Press "Presets ".
Make a long press on one of the buttons to preset the station.
Activating/Deactivating RDS
Press Radio Media to display the main
page.
Press the "OPTIONS " button to access the
secondary page.
Select "Radio settings".
Select "General".
Activate/deactivate "Station follow ".