2020 CITROEN C4 towing

103
Driving
6– Signs indicating a shared traffic zone detected
by the camera.
Sign detected Suggested speed (calculated)
Entry into a shared traffic zoneExample:


Without CITROËN
Connect Nav
10 mph or 20
km/h
(depending on
the units on the
instrument panel) With CITROËN Connect Nav
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)
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)
Supplementary
traffic sign detected Display of
the speed
associated with
the supplementary traffic sign
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)
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.

104
Driving
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
instrument 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.
The settings are changed via the Driving/Vehicle touch screen menu.
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
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).

107
Driving
6The 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.
–


Driving on a speed circuit.
–


Driving on a rolling road.
–


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

11 3
Driving
6

– Vehicles crossing your lane.
– V ehicles driving in the opposite direction.
Situations where the driver must suspend the
system:


– Vehicles in a tight bend.
– When approaching a roundabout.

– When following a narrow vehicle.
Reactivate the system when conditions allow .
Situations in which the driver is prompted to
immediately resume control:
–

Excessively sharp deceleration by the vehicle
in front of you.


– 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 .

11 8
Driving
Operating limits
The system may issue an alert when the vehicle is travelling on a long, straight
road with smooth road surface even if the
driver thinks they are holding the steering
wheel correctly.
The system may not operate or may produce
unsuitable corrections to the steering in the
following situations:
–

Poor visibility (insufficient road lighting,
snowfall, rain, fog).
–


Dazzle (headlamps of an oncoming vehicle,
low sun, reflections on a wet road surface,
leaving a tunnel, alternating light and shade).
–


Windscreen area in front of the camera
dirty

, misted up, frost-covered, snow-covered,
damaged or covered by a sticker.
–

Lane markings eroded, partially hidden (snow
,
mud) or multiple (roadworks, surface joints).
–

T

ravelling in a tight bend.
–

Winding roads.
–


Presence of a tarmac joint on the road.
Risk of undesirable operation
The system should be deactivated in the following situations:
–

Driving with a "space-saver" type spare
wheel.
–


When towing or with a bicycle carrier
attached to a towing device, particularly when
a trailer is not connected or the trailer is not
an approved type.
–

Adverse weather conditions.
–


Driving on slippery road surfaces (risk of
aquaplaning, snow

, ice).
–

In roadworks or toll booth areas.
–


Driving on racing circuits.
–


Driving on a rolling road.
Malfunction
In the event of a malfunction, the
Service warning lamp comes on
and this (orange) symbol appears on the
instrument panel, accompanied by the display of
a message and an audible signal.
Have it checked by a CITROËN dealer or a
qualified workshop.
Active lane departure warning system
For more information, refer to the
General recommendations on the use
of driving and manoeuvring aids .
The system corrects the vehicle's trajectory by
alerting the driver as soon as it detects a risk of
involuntary
lane departure or crossing of a verge
or hard shoulder (depending on version).
To do this, the system uses a camera, placed on
the upper part of the windscreen, identifying the
lane markings on the ground and the side of the
road (depending on version).
This system is particularly useful on
motorways and main roads.


Operating conditions
– Vehicle speed between 40 and 112 mph (65
and 180 km/h).
–

Road marked with a central dividing line.
–


Steering wheel held in both hands.
–


Direction indicators not activated.
–


ESC system activated and operational.
The system helps the driver only if there is a risk of the vehicle unintentionally
wandering from the lane it is being driven in. It
does not manage the safe driving distance,
vehicle speed or braking.
The driver must hold the steering wheel with
both hands in a way that allows control to
be maintained in circumstances where the
system is not able to intervene (for example, if
the central dividing line disappears).
Operation
As soon as the system identifies a risk of
involuntarily crossing one of the lane markings

120
Driving
Function statusDisplayComments
ON



"Hold the wheel". If, while correcting the trajectory, the system determines that the correction will not be
enough and that a solid line will be crossed: the driver is warned that \
they must provide
additional trajectory adjustment.
If the steering wheel is not held properly, an audible warning sounds, accompanied by
a message, until the trajectory correction is completed or the driver ha\
s grasped the
steering wheel correctly.
The duration of audible warnings will increase if multiple corrections a\
re performed
in quick succession. The warning will become continuous, persisting until the driver
responds.
Operating limits
The system goes into standby automatically in
the following cases:
–

ESC deactivated or operation triggered.
–


Speed below 40 mph (65
km/h) or greater
than 112 mph (180
km/h).
–

Electrical connection to a trailer
.
–

Use of a"space-saver" spare wheel detected
(as detection is not immediate, deactivation of
the system is recommended).
–


Dynamic driving style detected, pressure on
the brake or accelerator pedal.
–


Driving over lane markings.
–


Activation
of the direction indicators.
–

Crossing the inside line on a bend.
–


Driving on a tight bend.
–


Inactivity by the driver detected during
correction.
–


Narrow lane detected.
The following situations may interfere with the operation of the system or
prevent it from working:
–

Insufficient contrast between the road
surface and the side of the road (e.g. shade).
–


Lane markings worn, hidden (snow
, mud)
or multiple (roadworks, etc.),
–

Close proximity to the vehicle in front (lane
markings may not be detected).
–


Roads that are narrow
, winding.
Risk of undesirable operation
The system should be deactivated in the
following situations:
–
When changing a wheel or working near a
wheel.
–


T
owing or with a bicycle carrier on a towing
device, especially with trailer not plugged in or
not approved. –

Road in poor condition, unstable or with very
poor grip (risk of aquaplaning, snow
, ice).
–
Adverse weather conditions.
–

Driving on racing circuits.
–

Driving on a rolling road.
Deactivation/Activation



► Press and hold this button to deactivate or
press briefly to reactivate the system at any time.
Deactivation is signalled by the lighting of
the indicator lamp in the button and this
warning lamp in the instrument panel.

121
Driving
6The system is automatically reactivated every
time the ignition is switched on.
Malfunction
In the event of a malfunction,
these warning lamps light up on
the instrument panel, accompanied by the
display of a message and an audible signal.
Have it checked by a CITROËN dealer or a
qualified workshop.
Blind spot monitoring
For more information, refer to the
General recommendations on the use
of driving and manoeuvring aids .


This system warns the driver of a potential
danger posed by the presence of another vehicle
(car, lorry, motorcycle) in the vehicle's blind
spots (areas hidden from the driver's field of
vision) using sensors located on the sides of the
bumpers.


The warning is given by a fixed warning lamp
that appears in the door mirror on the side in
question:
–

immediately
, when being overtaken;
–

after a delay of about one second, when
overtaking a vehicle slowly

.
Activation/Deactivation
It is set via theDriving/Vehicle touch
screen menu.
When starting the vehicle, the
warning lamp
comes on in each mirror to indicate that the
system is activated.
The status of the system is memorised when the
ignition is switched off.
The system is automatically deactivated when towing with a towing device
approved by CITROËN.
Operating conditions
– All vehicles are moving in the same direction
and in adjacent lanes.
–

The speed of your vehicle must be between
7

and 87 mph (12 and 140 km/h) (versions without Park Assist) or between 19
and 87 mph
(30 and 140 km/h) (versions with Park Assist).
–
When overtaking a vehicle, the speed
difference is less than 6
mph (10 km/h).
–
When overtaken by a vehicle, the speed
difference is less than 16
mph (25 km/h).
–
T
raffic is flowing normally.
–
Overtaking a vehicle over a certain period of
time and the vehicle being overtaken remains in
the blind spot.
–

Y
ou are driving on a straight or slightly curved
road.
–
Y
our vehicle is not pulling a trailer, a caravan,
etc.
Operating limits

127
Driving
6When the obstacle is very close, the "Danger"
symbol is displayed on the screen.
Front parking sensors
Supplementing the rear parking sensors, the
front parking sensors are triggered when an
obstacle is detected in front and the speed of the
vehicle is below 6 mph (10 km/h).
Front parking sensor operation is suspended if
the vehicle stops for more than three seconds in
forward gear, if an obstacle is no longer detected
or the vehicle speed exceeds 6
mph (10 km/h).
The sound emitted by the speaker (front or rear) locates the obstacle relative to
the vehicle, in front or behind it.
Side parking sensors

Using four additional sensors located on the
sides of the bumpers, the system records the
position of obstacles during the manoeuvre and
indicates them when they are located alongside
the vehicle.
Only fixed obstacles are indicated
correctly. Moving obstacles detected at
the beginning of the manoeuvre may be
indicated mistakenly, while moving obstacles
that appear alongside the vehicle but were
not previously recorded will not be indicated.
Objects memorised during the
manoeuvre will no longer be stored after
switching off the ignition.
Deactivation/Activation
The settings are changed via the Driving/Vehicle touch screen menu.
The system status is memorised when the
ignition is switched off.


The rear parking sensors system will be deactivated automatically if a trailer or
bicycle carrier is connected to a towing device
installed in accordance with the
manufacturer's recommendations.
In this case, the outline of a trailer is displayed
at the rear of the image of the vehicle.
The parking sensors are deactivated while the
Park Assist function is measuring a space.
For more information on the Park
Assist
function, refer to the corresponding
section.
When starting the vehicle, the graphic
and audible aids are only available after
the touch screen has started up.
Operating limits
If the boot is heavily loaded, the vehicle may tilt,
affecting distance measurements.
Malfunction
In the event of a malfunction when
changing into reverse gear, this warning
lamp lights up on the instrument panel,
accompanied by the display of a message and
an audible signal (short beep).
Have it checked by a CITROËN dealer or a
qualified workshop.
Reversing camera
For more information, refer to the
General recommendations on the use
of driving and manoeuvring aids .