display CITROEN C4 2022 Workshop Manual

108
Driving
The vehicle stalls in STOP mode
All of the instrument panel warning lamps come
on if there is a fault.
►
Switch off the ignition then start the engine
again with the key or the " ST

ART/STOP" button.
12 V battery
The Stop & Start system requires a
12 V battery of specific technology and
specification.
All work must be carried out only by a
CITROËN dealer or a qualified workshop
Tyre under-inflation detection
This system alerts the driver if one or more tyres
suffer a drop in pressure.
The alert is raised when the vehicle is moving,
not when stationary.
It compares the information given by the wheel
speed sensors with reference values, which
must be reinitialised every time the tyre
pressures are adjusted or a wheel changed.
It takes into account the last values stored
during the reinitialisation request. It is therefore
essential that the tyre pressure is correct during
the operation. This operation is the driver’s
responsibility.
The tyre under-inflation detection cannot, in any circumstances, replace the need
for vigilance on the part of the driver.
This system does not avoid the need to
regularly check the tyre pressures (including
the spare wheel), especially before a long
journey.
Driving with under-inflated tyres, particularly
in adverse conditions (heavy load, high
speed, long journey):
–

worsens road-holding.
–


lengthens braking distances.
–


causes premature wear of the tyres.
–


increases energy consumption.
The inflation pressures defined for the vehicle can be found on the tyre pressure
label.
For more information on the Identification
markings, refer to the corresponding section.
Checking tyre pressures
This check should be done monthly
when the tyres are "cold" (vehicle stopped for
1 hour or after a journey of less than 6 miles
(10

km) at moderate speeds).
Otherwise, add 0.3 bar to the pressures
shown on the label.
Snow chains
The system does not have to be
reinitialised after fitting or removing snow
chains.
Under-inflation alert
This is signalled by the fixed illumination of this warning lamp, accompanied by an
audible signal and, depending on equipment, the
display of a message.
►

Reduce speed immediately
, avoid excessive
steering movements and avoid sudden braking.
►

Stop the vehicle as soon as it is safe to do
so.
The loss of pressure detected may not always cause visible deformation of the
tyre.
Do not rely on just a visual check.
►

Using a compressor
, such as the one in
the temporary puncture repair kit, check the
pressures of all four tyres when cold.
►

If it is not possible to carry out this check
immediately

, drive carefully at reduced speed.
►

In the event of a puncture, use the
temporary puncture repair kit or the spare wheel
(depending on equipment).
Driving too slowly may not ensure
optimum monitoring.
The alert is not immediately triggered in the
event of a sudden loss of pressure or tyre

109
Driving
6blow-out. This is because analysis of the
values read by the wheel's speed sensors
can take several minutes.
The alert may be delayed at speeds below
25 mph (40 km/h), or when adopting a sporty
driving mode.
The alert is kept active until the system is reinitialised.
Reinitialisation
► The system must be reinitialised after any
adjustment to the pressure of one or more tyres,
and after changing one or more wheels.
Before reinitialising the system, make
sure that the pressures of the four tyres
are correct for the conditions of use of the
vehicle and conform to the values written on
the tyre pressure label.
Check the pressures of the four tyres before
performing the reinitialisation.
The system does not advise if a pressure is
incorrect at the time of reinitialisation.
With Touch screen BLUETOOTH audio
system or MyCitroën Play
With the vehicle stationary, the system
can be reinitialised via the Driving touch
screen menu.
With MyCitroën Drive
With the vehicle stationary, the system
can be reinitialised via the Vehicle touch
screen menu.
With MyCitroën Drive Plus
With the vehicle stationary, the system
can be reinitialised in the
Settings>Vehicle touch screen application.
►

Then select
Safety > Tire Pressure Setup.
►

Press
YES to confirm.
The reinitialisation is confirmed by the display of
a message and an audible signal.
Malfunction
In the event of a malfunction,
these warning lamps light up on
the instrument panel.
A message appears, accompanied by an audible
signal.
In this case, the tyre under-inflation monitoring
function is no longer performed.
Have it checked by a CITROËN dealer or a
qualified workshop.
Non-standard or 'space-saver' spare
wheel
The use of this type of spare wheel may
suspend tyre pressure monitoring.
In this case, the malfunction warning lamp
comes on and disappears once the wheel
has been replaced by one of uniform size (the
same as the others), the pressure readjusted
and the reinitialisation carried out.
Driving and manoeuvring
aids - General
recommendations
Driving and manoeuvring aids cannot, in
any circumstances, replace the need for
vigilance on the part of the driver.
The driver must comply with the Highway
Code, must remain in control of the vehicle in
all circumstances and must be able to retake
control of it at all times. The driver must adapt
the speed to climatic conditions, traffic and
the state of the road.
It is the driver's responsibility to constantly
monitor traffic conditions, assess the distance
and relative speed of other vehicles, and
anticipate their manoeuvres before using the
direction indicator and changing lanes.
These systems do not make it possible to
exceed the laws of physics.
Driving aids
You should hold the steering wheel with
both hands, always use the door and interior
mirrors, always leave your feet close to the
pedals and take a break every 2 hours.

11 0
Driving
Manoeuvring aids
The driver must always check the
surroundings of the vehicle before and during
the whole manoeuvre, in particular using the
mirrors.
Radar(s)
The operation of the radar(s), along with
any associated functions, may be affected
by the accumulation of dirt (e.g.
mud, ice),
in poor weather conditions (e.g.
heavy rain,
snow), or if the bumpers are damaged.
If the front bumper is to be repainted, contact
a CITROËN dealer or a qualified workshop;
certain types of paint could interfere with the
operation of the radar(s).


Driving aids camera
This camera and its associated functions
may be impaired or not work if the windscreen
area in front of the camera is dirty, misty,
frosty, covered with snow, damaged or
masked by a sticker.
In humid and cold weather, demist the
windscreen regularly.
Poor visibility (e.g.
inadequate street lighting,
heavy rain, thick fog, snowfall), dazzle
(e.g. headlamps of an oncoming vehicle, low
sun, reflections on a damp road, leaving a
tunnel, alternating shade and light) can also
impair detection performance.
In the event of a windscreen replacement,
contact a CITROËN dealer or a qualified
workshop to recalibrate the camera;
otherwise, the operation of the associated
driving aids may be disrupted.
Other cameras
The images from the camera(s)
displayed on the touch screen or on the
instrument panel may be distorted by the
terrain.
In the presence of areas in shade, or in
conditions of bright sunlight or inadequate
lighting, the image may be darkened and with
lower contrast.
Obstacles may appear further away than they
actually are.
Sensors
The operation of the sensors, as well as
any associated functions, may be disrupted
by noise pollution such as that emitted by
noisy vehicles and machinery (e.g. lorries,
pneumatic drills), by the accumulation of
snow or dead leaves on the road or in the
event of damaged bumpers and mirrors.
When reverse gear is engaged, an audible
signal (long beep) indicates that the sensors
may be dirty.
A front or rear impact to the vehicle can
upset the sensors’ settings, which is not
always detected by the system: distance
measurements may be distorted.
The sensors do not systematically detect
obstacles that are too low (pavements, studs)
or too thin (trees, posts, wire fences).
Certain obstacles located in the sensors’ blind
spots may not be detected or may no longer
be detected during the manoeuvre.
Certain materials (fabrics) absorb sound
waves: pedestrians may not be detected.
Maintenance
Clean the bumpers and door mirrors and
the field of vision of the cameras regularly.
When washing your vehicle at high pressure,
direct the spray from at least 30
cm away
from the radar, sensors and cameras.
Mats/Pedal trims
The use of mats or pedal trims not
approved by CITROËN may interfere with
the operation of the speed limiter or cruise
control.
To avoid any risk of jamming the pedals:
–

Ensure that the mat is secured correctly
.
–

Never fit one mat on top of another
.

111
Driving
6Units of speed
Ensure that the units of speed displayed
on the instrument panel (mph or km/h) are
those for the country you are driving in.
If this is not the case, when the vehicle is
stationary, set the display to the required
units of speed so that it complies with what is
authorised locally.
In case of doubt, contact a CITROËN dealer
or a qualified workshop.
Shortcuts for driving aids
With MyCitroën Drive Plus
The full list of available driving aids can be found
in the Functions tab.
Driving aids can be accessed directly to quickly
activate/deactivate them.
By default, driving aids are already stored in the
Shortcuts tab (e.g.
Stop & Start, Lane keeping
assist).
Other driving aids can be added or deleted from
this tab.
It is configured in the ADAS>Functions
touch screen application.
► Press the button corresponding to the
driving assistance concerned:
•

Full symbol: the function is added to the
Shortcuts

tab.
•

Empty symbol: the function is deleted from
the

Shortcuts tab.
►

Check the modification in the Shortcuts

tab.




► Press this button to access directly to the
Shortcuts tab.
Multiple deactivation
It is possible to deactivate several driver
assistance functions simultaneously.
This is done in two steps:
–

First of all, the selection of all the functions
that you want to deactivate.
–


Secondly
, the simultaneous deactivation of all
these functions.
Selection of functions
► Press this button on the dashboard to
display the ADAS
tabs.
►

Select the
Functions tab.
► Press this button to display the list of
available functions.
►

Select the functions to deactivate
(e.g.


Stop - Start, Lane Keeping Assist, Automatic
Braking System (Active Safety Brake)).
► Press this button to return to the
previous page.
The functions to deactivate are saved in the
system.
Deactivation of these functions
► Press and hold this bu tton on
the dashboard.
All previously selected functions are deactivated
until the vehicle is next restarted (confirmed by
an audible signal).
Road signs recognition
For more information, refer to the
General recommendations on the use
of driving and manoeuvring aids .


This system displays the maximum speed
authorised locally on the instrument panel, using:
–

Speed limit signs detected by the camera.
–


Speed limit information from the navigation
system’

s mapping.
–

Signs indicating a shared traffic zone detected
by the camera.

11 2
Driving
Sign detected Suggested speed (calculated)
Entry into a shared traffic zoneExample:


Without MyCitroën
Drive Plus
10 mph or 20
km/h
(depending on
the units on the
instrument panel) With MyCitroën Drive Plus
Display of the speed
in force in the country you are driving in.
–

Some supplementary traffic signs detected by
the camera.
Supplementary
traffic sign detected Display of
the speed
associated with
the supplementary traffic sign
Speed limit when raining
Examples:


If the wiper control stalk is in the
"intermittent wipe"
or "automatic wipe" position (in order
to activate the rain sensor):
68 mph (110
km/h)
(for example)
Supplementary
traffic sign detected Display of
the speed
associated with
the supplementary traffic sign
Speed limit when towing


If an approved towing device is fixed to the vehicle:
56 mph (90
km/h)
(for example)
Speed limit
applicable over a certain distance Example:


43 mph (70 km/h)
(for example)
Speed limit for
vehicles with a gross vehicle
weight or gross
train weight less than 3.5 tonnes


56 mph (90 km/h)
(for example)
Supplementary
traffic sign detected Display of
the speed
associated with
the supplementary traffic sign
Speed limit in case of snow
Example:


If the outside
temperature is below 3°C:
19 mph (30
km/h)
(for example)
with a "snowflake" symbol
Speed limit at
certain times of the day
Example:


19 mph (30 km/h)
(for example)
with a "clock" symbol
Navigation mapping should be regularly
updated in order to receive accurate
speed limit information from the system.
The units for the speed limit (mph or km/h) depend on the country you are
driving in.
This should be taken into account to ensure
you observe the speed limit.
For the system to work properly when
changing countries, the speed unit of the

11 3
Driving
6instrument panel must match that of the
country you are driving in.
Automatic sign reading is a driving aid system and does not always display the
correct speed limits.
The speed limit signs present on the road
always take priority over those displayed by
the system.
The system is designed to detect signs that
conform to the Vienna Convention on road
signs.
Specific speed limits, such as those for
heavy goods vehicles, are not displayed.
The display of the speed limit on the
instrument panel is updated when passing
a speed limit sign intended for cars (light
vehicles).
Activation/Deactivation
By default, the system is automatically activated
at every engine start.
With Touch screen BLUETOOTH audio
system or MyCitroën Play
The settings are changed via the Driving
touch screen menu.
With MyCitroën Drive
The settings are changed via the Vehicle
touch screen menu.
With MyCitroën Drive Plus
The settings are changed via the ADAS
touch screen application.
Information displayed on
the instrument panel


1. Detected speed limit indication
or
2. End of speed limit indication


The system is active but is not detecting speed
limit information.


On detecting speed limit information, the system
displays the value.


For a suggested maximum speed, the first time
that the vehicle exceeds it
by more than 3 mph
(5
km/h) (e.g. 59 mph (95 km/h)), the speed is
displayed and flashes for 10 seconds (depending
on version).
Operating limits
The system does not take account of reduced
speed limits, especially those imposed in the
following cases:
–

Atmospheric pollution.
–

Towing.
–

Driving with a space-saver type spare wheel
or snow chains fitted.
–


T
yre repaired using the temporary puncture
repair kit.
–

Y
oung drivers.
The system may not display the speed limit if it
does not detect a speed limit sign within a preset
period and in the following situations:
–

Road signs that are obstructed, non-standard,
damaged or bent.
–


Obsolete or incorrect maps.
Speed setting
recommendations
The driver can select the speed displayed by the
Road signs recognition system as the speed
setting for the speed limiter, cruise control or
adaptive cruise control using the OK button.
In the event of rain detection, the system offers
the driver a speed setting lower than the speed

11 4
Driving
read/from the map in order to adapt to weather
conditions (e.g.on motorways, the proposed
speed is 68 mph (110 km/h) instead of 81 mph
(130 km/h).
For more information on the Speed
limiter, Cruise control or Adaptive
cruise control, refer to the corresponding
sections.
Steering-mounted controls



1. Select speed limiter mode
2. Select cruise control mode
3. Memorise the speed setting
Information displayed on the
instrument panel


4.Current speed setting
5. Speed memorisation prompt
6. Current speed limit indication
Memorising the speed setting
► Switch on the speed limiter 1-LIMIT or cruise
control 2.
Information related to the speed limiter or cruise
control is displayed.
When a new speed setting is detected, the
system displays the value and “ OK?“ flashes
for a few seconds to suggest saving it as a new
speed setting.
If there is a difference of less than 3 mph
(5 km/h) between the speed setting and
the speed displayed by the Road signs
recognition, the " OK?“ symbol is not
displayed.
Depending on the road conditions, several
speeds may be displayed.
►

Press
3-OK to confirm the new speed setting.
The display then reverts to its previous state.
Extended Traffic Sign
Recognition
For more information, refer to the
General recommendations on the use
of driving and manoeuvring aids .


This additional system recognises these road
signs and displays them on the instrument panel.
As you approach it, the symbol of the
corresponding sign is displayed on the
instrument panel.
The actual road signs always take priority
over those displayed by the system.
The signs must comply with the Vienna
Convention on road signs.
Activation/Deactivation
With Touch screen BLUETOOTH audio
system or MyCitroën Play
The settings are changed via the Driving
touch screen menu.
With MyCitroën Drive
The settings are changed via the Vehicle
touch screen menu.

11 5
Driving
6With MyCitroën Drive Plus
The settings are changed via the ADAS
touch screen application.
Speed limiter
For more information, refer to the
General recommendations on the use
of driving and manoeuvring aids .
This system prevents the vehicle from
exceeding the speed programmed by the
driver (speed setting).
The speed limiter is switched on manually.
The minimum speed setting is 19 mph (30
km/h).
The speed setting remains in the system
memory when the ignition is switched off.
Steering-mounted controls



1. Speed limiter selection
2. Switch on/pause the speed limiter at the
previously saved speed setting
3. Increase/Decrease the speed setting
4. Activate the speed limiter at the previously
saved speed setting
Use the speed suggested by the Road signs
recognition function
For more information on the Road signs
recognition


function, refer to the corresponding
section.
Information displayed on
the instrument panel


5. Speed limiter mode selection indication
6. Speed limiter on (green)/pause (grey)
indication
7.Speed setting value
8. Speed suggested by the Road signs
recognition function (depending on version)
Switching on/Pausing
► Press 1-LIMIT to select the speed limiter
mode; the function is paused (grey).
►

If the limit speed setting is suitable (most
recent speed setting programmed in the system),
press

2-I I> or 4-OK to switch the speed limiter
on (green).
►

Pressing
2-I I> again temporarily pauses the
function.
When the speed setting remains below
the vehicle's speed for a prolonged
period of time, an audible warning is emitted.
Adjusting the speed setting
You do not have to switch the speed limiter on in
order to set the speed.
To change the speed setting using the vehicle’s
current speed:
►

For steps of +/- 1 mph (1 km/h), make
successive short presses upwards/downwards
on

3 to increase/decrease.
►

For steps of +/- 5 mph (5
km/h), press and
hold upwards/downwards on 3 to increase/
decrease.
To modify the cruise speed setting based on the speed suggested by the Road signs recognition,
as shown on the instrument panel:

11 6
Driving
– When passing the sign:
► Press 4-OK to save the suggested speed.
This value is then immediately shown as the new
speed setting on the instrument panel.
–

After passing the sign:
►


Press
4-OK. The message “OK?" is
displayed to confirm the request to save.
►

Press
4-OK again to save the suggested
speed. The new speed setting value is displayed
on the instrument panel.
Temporarily exceeding the
speed setting
► Fully depress the accelerator pedal.
The speed limiter is temporarily deactivated and
the displayed speed setting flashes.
►

Release the accelerator pedal to return to
below the speed setting.
When exceeding the speed is not due to the
driver's action (e.g.

in case of a steep slope), an
audible signal is triggered immediately.
On a steep descent or in the event of
sharp acceleration, the speed limiter will
not be able to prevent the vehicle from
exceeding the speed setting.
If necessary, apply the brakes to control your
vehicle’s speed.
When the vehicle speed returns to the speed
setting level, the speed limiter operates again:
the speed setting display becomes fixed again.
Off
► Press 1-LIMIT: the speed limiter information
display disappears.
Malfunction
In the event of a malfunction, dashes are
displayed flashing and then fixed instead of the
speed setting.
Have it checked by a CITROËN dealer or a
qualified workshop.
Cruise control - Specific
recommendations
The cruise control function does not
guarantee compliance with the maximum
authorised speed and the safety distance
between vehicles, the driver remains
responsible for their driving.
In the interest of public safety, only use cruise
control if the traffic conditions enable vehicles
to drive at a steady speed and maintain an
adequate safety distance.
Remain vigilant while cruise control is
activated. If you press and hold one of the
speed setting modification buttons, your
vehicle may change speed very abruptly.
When descending a steep hill , the cruise
control system cannot prevent the vehicle
from exceeding the set speed. Brake if
necessary to control the vehicle speed.
On steep climbs or when towing, the set
speed may not be reached or maintained.
Exceeding the programmed speed
setting
You can temporarily exceed the speed
setting by pressing the accelerator pedal (the
programmed speed flashes).
To return to the speed setting, release the
accelerator pedal (when the set speed is
reached again, the displayed speed stops
flashing).
Operating limits
Never use the system in the following
situations:
–

In an urban area with the risk of
pedestrians crossing the road.
–


In heavy traffic (except versions with the
Stop & Go function).
–


On winding or steep roads.
–


On slippery or flooded roads.
–


In poor weather conditions.
–


In the event of restricted visibility for the
driver

.
–

Driving on a speed circuit.
–


Driving on a rolling road.
–


When using a ‘space-saver
’ type spare
wheel.
–

When using snow chains, non-slip covers
or studded tyres.

11 7
Driving
6Cruise control
For more information, refer to the
General recommendations on the use
of driving and manoeuvring aids and the
Cruise control - particular
recommendations.
This system automatically maintains the vehicle’s speed at the value programmed
by the driver (speed setting), without the use of
the accelerator pedal.
Cruise control is switched on manually.
It requires a minimum vehicle speed of 25 mph
(40

km/h).
With a manual gearbox, third gear or higher must
be engaged.
With an automatic gearbox, mode

D
or second
gear or higher in mode

M
must be engaged.
With a drive selector, mode
D or B must be
engaged.
Cruise control remains active after
changing gear, regardless of the gearbox
type, on engines fitted with the Stop & Start
function.
Switching off the ignition cancels any
speed setting.
Steering-mounted controls



1. Cruise control selection
2. Switch on/pause cruise control at the
previously saved speed setting
3. Increase/Decrease the speed setting (if
cruise control activated)
Activation of cruise control in progress (if
cruise control deactivated)
4. Activation of cruise control in progress
Use the speed suggested by the Road signs
recognition
For more information on the Road signs
recognition


function, refer to the corresponding
section.
Information displayed on
the instrument panel


5. Cruise control mode selection indication
6. Cruise control on (green)/pause (grey)
indication
7. Speed setting value
8. Speed suggested by the Road signs
recognition function (depending on version)
Switching on/pausing
► Press button 1 to select the cruise control
mode; the function is paused (grey).
►

Press
3 upwards/downwards, or press 4-OK
to activate the cruise control and save a speed
setting as soon as the vehicle speed reaches the
desired level (green).
►

Pressing button 2-I I>

temporarily pauses the
function.