2022 CITROEN C4 wheel

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 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 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 9
Driving
6Selecting/Deselecting the
system



ASSIST

► Press this button successively until the
Highway Driver Assist mode is displayed on the
instrument panel.
►

After a few seconds, the Highway Driver
Assist mode is selected.

The Driving aids mini-
view is displayed on the instrument panel.


The colour of the symbols, representing the
steering wheel and the side lines, depends on
the operating state of the system:
(grey)
One or more operating conditions is not
met; the system is paused.
(green)
All operating conditions are met; the
system is active.
(orange)
System malfunction.
► Press this button successively again until the
OFF mode is displayed on the instrument panel.
►

After a few seconds, the Highway Driver
Assist mode is deselected.

The Driving aids
mini-view disappears.
Adaptive cruise 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
speed at a value set by the driver (speed
setting), while respecting a safety distance from
the vehicle in front (target vehicle) previously set
by the driver. The system automatically manages
the acceleration and deceleration of the vehicle.
With the Stop function , the system manages
braking until the vehicle comes to a complete
stop.
With the Stop
& Go function , the system
manages braking until the vehicle comes to a
complete stop and restarts the vehicle.
The brake lamps come on if the vehicle is slowed down by the system.
It can be dangerous to drive if the brake
lamps are not in perfect working order.


To do this, the system uses a camera fitted at the
top of the windscreen and a radar fitted in the
front bumper.
Primarily designed for driving on main
roads and motorways, this system only
works with moving vehicles driving in the
same direction as your vehicle.
If the driver activates the direction
indicator to overtake a slower vehicle,
cruise control may temporarily reduce the
distance to the target vehicle to facilitate
overtaking, without exceeding the speed
setting.

123
Driving
6

– When a vehicle cuts in sharply between your
vehicle and the one in front.
Some vehicles on the road may be
poorly perceived or interpreted by the
camera and/or the radar (e.g.
truck), which
can lead to an incorrect evaluation of
distances and result in inappropriate
acceleration or braking of the vehicle.
Pay particular attention:
– When motorcycles are present and
when there are vehicles staggered across the
traffic lane.
–

When entering a tunnel or crossing a
bridge.
If any of the following malfunctions
occurs, do not use the system:
–

Following an impact on the windscreen
close to the camera or on the front bumper
(versions with radar).
–


Brake lamps not working.
If the vehicle has undergone any of the
following modifications, do not use the
system:
–

Carrying long objects on roof bars.
–


Towing.
–

Use of the "space-saver" type spare wheel
(depending on version).
–


Front end of the vehicle modified (for
example by adding long-range headlamps or
painting the front bumper).
–


Obstructed radar and/or camera.
Malfunction
In the event of a malfunction,
dashes are displayed instead of
the speed setting.
This warning lamp comes on, accompanied by a message and an
audible signal, to confirm the malfunction.
Have it checked by a CITROËN dealer or a
qualified workshop.
Lane positioning assist
For more information, refer to the
General recommendations on the use
of driving and manoeuvring aids .


The system identifies the edges of the traffic lane
and steers the vehicle to keep it inside this lane
and maintain the lateral position chosen by the
driver.
To do this, the system uses a camera placed on
the upper part of the windscreen.
This system is particularly suited to driving on
motorways and main roads.
Activation/Deactivation
The Lane positioning assist system is
automatically activated, after selecting Highway
Driver Assist mode.
For more information on the Highway Driver
Assist system, refer to the corresponding
section.
The selection is confirmed by the display of
the symbols on the instrument panel or on the
head-up display (if fitted), representing the
steering wheel and the side lines.
The colour of the symbols depends on the
operating state of the system:
(grey)
One or more operating conditions is not
met; the system is paused.
(green)

124
Driving
All operating conditions are met; the system is
active.
(orange)
System malfunction.
If the driver no longer wishes to use the system
for some time, they can deactivate it by pressing
the button again (confirmed when the symbol
disappears).
The system status is saved when the ignition is switched off.
Operating conditions
– Adaptive cruise control active.
– ESC system operational.
–

ASR system activated.
–


No trailer detected.
–


No 'space-saver' spare wheel in use.
–


V
ehicle not subject to strong lateral g-forces.
–

Direction indicators not activated.
Regulation
The driver must hold the steering wheel
properly.
When regulation is activated, the symbols are
displayed in green: with small steering inputs,
the system steers the vehicle and keeps it in the
position chosen by the driver in the traffic lane.
This position is not necessarily the centre of the
lane.
The driver can feel movements in the steering
wheel.
At any time, the driver can change the position of
the vehicle by intervening on the steering wheel
and maintaining the position until the system has
taken it into account. If the chosen position is too
off-centre, an automatic re-centering manoeuvre
can occur. The system adjusts to the newly
defined position.
Pausing/Suspending the
system
The driver must act promptly if they believe that the traffic conditions or the
state of the road surface require their
intervention, by moving the steering wheel to
temporarily suspend system operation. Any
action on the brake pedal that causes the
Adaptive cruise control
system to be paused
will also cause the system to be paused.
If the system detects that the driver is not
holding the wheel firmly enough, it
triggers a series of gradual alerts and then
deactivates itself if there is no response from
the driver.
If the function is suspended due to the
prolonged release of the force holding
the steering wheel, the system must be
reactivated by pressing the button again.
Automatic suspension
Suspension of the system is accompanied by a
specific audible signal.
–

T
riggering of the ESC system.
–

Insufficient lane detection. In this case, the
Lane keeping assist function can take over

,
and the system will reactivate itself once the
operating conditions are met again.
Paused by the driver
– Travelling outside the lane limits.
– T oo tight a grip on the steering wheel or
dynamic action on the steering wheel.
–

Action on the brake pedal (resulting in a pause
until cruise control is reactivated) or accelerator
pedal (suspension for as long as the pedal is
depressed).
–


Pausing of the
Adaptive cruise control system.
–

Deactivation of the
ASR system.

126
Driving
SymbolsComments

(green)

(green)

(green lines) Highway Driver Assist system activated.
Lane positioning assist is operating normally (steering wheel correctio\
n active).

(grey)

(grey)

Highway Driver Assist system paused by the driver.