Citroen C4 Picasso (2017 year). Manual — part 12

175

4

70
70

70
70

Driving

C4-Picasso-II_en_Chap04_conduite_ed02-2016

Indicator

Display

Associated message

Comment

+

"Take back control of the
vehicle"

The driver should take control of the vehicle by accelerating or
braking, depending on the circumstances.

+

"Take back control of the
vehicle"

The system cannot manage the critical situation alone
(emergency braking of the target vehicle, rapid insertion of
another vehicle between the two vehicles).
The driver must immediately take back control of the
vehicle.

or

"Activation not possible,
conditions unsuitable"

The system refuses to activate the cruise control (speed outside
the operating range, winding road).

or

according to the inter-vehicle
distance selected and the actual
distance from the target vehicle

"Cruise control paused"
(for a few seconds)

The system has brought the vehicle to a complete stop and is
holding it immobilised.
The driver should accelerate to move off again.
The cruise control remains paused until the driver reactivates it
with the speed of the vehicle above 18 mph (30 km/h).

176

Driving

C4-Picasso-II_en_Chap04_conduite_ed02-2016

Limits of operation

The radar does not detect:
- Pedestrians, cyclists, animals.
- Stationary vehicles (traffic jam,

breakdown, etc.).

- Vehicles crossing a junction.
- Vehicles driving in the opposite direction.

Cases in which the driver is encouraged to
immediately take back control:
- Excessively sharp deceleration of the

vehicle ahead.

- Sharp cutting in of a vehicle between your

vehicle and the vehicle ahead.

The system must not be activated:
- If the "space-saver" spare wheel is being

used (depending on version).

- When towing.

Be particularly vigilant in the presence
of:
- Motorcycles.
-

Vehicles which are not in the centre
of the traffic lane.

Pausing of the cruise control is required in
the following situations:
- Vehicles on a bend.
- Approaching a roundabout.
- Following a narrow vehicle.
Reactivate the cruise control as soon as the
conditions permit.

The system cannot exceed the limits of the
laws of physics.

177

4

Driving

C4-Picasso-II_en_Chap04_conduite_ed02-2016

Operating fault

In the event of a fault with the cruise
control, you are alerted by the
illumination of this warning lamp
and the display of a message in the
instrument panel, accompanied by an
audible signal.

The cruise control operates by day and at night, in fog or moderate rainfall.
However, it is strongly recommended that you always keep a safe distance from vehicles
ahead, depending on the driving conditions, the weather and the road surface.

Use the cruise control only where the driving conditions allow running at a constant speed

and at an adequate safe distance.

Do not use the cruise control in urban areas, heavy traffic, on winding or steep roads, on

slippery or flooded surfaces, in snow, if the front bumper is damaged or if the brake lamps

are faulty.
In certain circumstances, it may not be possible for the speed setting to be maintained or
even attained: loaded vehicle, ascending a steep hill, etc.
The system is not intended for the following situations:
- the front end of the vehicle has been modified (addition of driving lamps, paint on the

bumper),

- driving on a racing circuit,
- running on a rolling road,
- use of snow chains, non-slip covers or studded tyres.

Have the system checked by a CITROËN
dealer or a qualified workshop.

The operation of the radar, located in the front bumper, may be disturbed by accumulations
of grime (dust, mud...) or in certain weather conditions (snow, ice...).
The message "SYSTEM INACTIVE: Visibility reduced" is displayed to signal that the system
has been put into standby.
Clean the front bumper regularly.
When painting or touching up the paint on the front bumper, consult a CITROËN dealer or a
qualified workshop. Certain types of paint could hinder the operation of the radar.

The use of mats not approved by CITROËN may interfere with the operation of the cruise
control.
To avoid any risk of jamming the pedals:
- ensure that mats are secured correctly,
- never fit one mat on top of another.

178

Driving

C4-Picasso-II_en_Chap04_conduite_ed02-2016

Collision Risk Alert and Active Safety Brake

This system includes three functions:
- Collision Risk Alert (alert if there is a risk of

collision),

- Intelligent emergency braking assistance,
- Active Safety Brake (automatic emergency

braking).

Collision Risk Alert:

it warns the driver if their

vehicle is at risk of collision with the vehicle in
front or a pedestrian present in their traffic lane.
Intelligent emergency braking assistance:
it completes the braking action taken by the
driver if this is inadequate.
Active Safety Brake:

it intervenes following

the alert if the driver does not react quickly
enough and does not operate the vehicle's
brakes.
If the driver fails to act, the system
contributes towards avoiding a collision or
limiting its severity by reducing the speed
of your vehicle.

This system is designed to assist the
driver and improve road safety.
It is the driver's responsibility to
continuously monitor the state of
the traffic, observing the driving
regulations.
This system does not avoid the need for
vigilance on the part of the driver.

The vehicle is fitted with a radar located in the front bumper and a camera at the top of the
windscreen.

Conditions for activation and operation

The system is active from about 4 mph (7 km/h)
and is deactivated below about 3 mph (5 km/h).
It takes account of:
- vehicles running in the same direction or

stationary,

- pedestrians present in the traffic lane

(bicycles, motorcycles, animals and objects
on the road are not necessarily detected).

179

4

Driving

C4-Picasso-II_en_Chap04_conduite_ed02-2016

Limits of operation

In the following cases, it is recommended
that the system be deactivated in the vehicle
configuration menu:
- when towing a trailer or caravan,
- when carrying long objects on roof bars or

a roof rack,

- before using an automatic car wash, with

the engine running,

- before placing the vehicle on a rolling road

in a workshop,

- when the vehicle is being towed, with the

engine running,

-

when a "space-saver" type spare wheel is
fitted (depending on version),

- following impact damage to the windscreen

close to the detection camera,

- if the front bumper has been damaged,
- if the brake lamps are not working.

Because of limits in the operation of the
system, it is possible that warnings are
not given, are given too late or seem
unjustified.
Consequently, the driver must always
remain attentive and able to react at any
time to avoid an accident.

Where the speed of your vehicle is too
high approaching another vehicle, the
first level of alert may not be displayed:
the level 2 alert may be displayed
directly.
Important

: the level 1 alert is never

displayed if the "Close" threshold has
been selected.

Collision Risk Alert

Depending on the degree of risk of collision
detected by the system and the alert threshold
chosen by the driver, different levels of alert can be
triggered and displayed in the instrument panel.

Level 1

: visual alert only, signalling

to you that the vehicle in front is very
close.
The message "Vehicle close" is
displayed.

This level of alert is based on the inter-vehicle
time between your vehicle and the vehicle in
front.

Level 2

: visual and audible alert,

warning you that a collision is
imminent.
The message "Brake!" is displayed.

This level of alert is based on the time before
collision. It takes account of the vehicle
dynamics, the speed of your vehicle and the
one in front, the environmental conditions, the
operation of the vehicle (cornering, pedals
pressed, etc.) to trigger the alert at the best
moment.

Modifying the alert trigger
threshold

This threshold determines how you wish to be
warned of the presence of a vehicle moving
or stationary in front of you, or a pedestrian
present in your traffic lane.
The current threshold can be modified only via
the Driving

menu in the touch screen.

You can select one of three thresholds:
- "Distant",
- "Normal",
- "Close

".

The last threshold selected is kept in memory
when the ignition is switched off.

180

Driving

C4-Picasso-II_en_Chap04_conduite_ed02-2016

Active Safety Brake

This function, also called automatic emergency
braking, aims to reduce the speed of impact or
avoid a frontal collision by your vehicle where
the driver fails to react.
Using a radar and a camera, this function acts
on the vehicle's braking system.

Operation of the function may be felt by
slight vibration in the brake pedal.
If the vehicle comes to a complete stop,
the automatic braking is maintained
for 1 to 2 seconds.

With a manual gearbox, in the event
of the automatic emergency braking
bringing the vehicle to a complete stop,
the engine may stall.
With an automatic gearbox, in the event
of the automatic emergency braking
bringing the vehicle to a complete stop,
keep the brake pedal pressed to stop
the vehicle moving off again.

If the radar and the camera have
confirmed the presence of a vehicle
or a pedestrian, this warning lamp
flashes once the function is acting on
the vehicle's brakes.

Important

: if operation of the

automatic emergency braking is
triggered, you should take back
control of your vehicle and brake
with the pedal to add to or finish the
automatic braking action.

The driver can take back control of the vehicle
at any time by sharply turning the steering
wheel and/or pressing the accelerator pedal.

The triggering of the braking may be
adjusted according to the driver's
driving actions (such as steering wheel
movements, actions on the accelerator
pedal, etc.).

181

4

Driving

C4-Picasso-II_en_Chap04_conduite_ed02-2016

Special features of the function

The speed of the vehicle must be between
3 mph (5 km/h) and 87 mph (140 km/h) when a
moving vehicle is detected.
The speed of the vehicle must not be higher
than 50 mph (80 km/h) when a stationary
vehicle is detected.
The speed of the vehicle must not be higher
than 37 mph (60 km/h) when a pedestrian is
detected.
The ESC system must not be faulty.
The ASR function must not be deactivated.
The seat belts of all occupants must be
fastened.
Driving at a steady speed on fairly straight
roads is required.

Following an impact, the function is put
out of service automatically, consult
a CITROËN dealer or a qualified
workshop to have the system checked.

Intelligent emergency
braking assistance

If the driver brakes, but not sufficiently to
avoid a collision, this system will complete the
braking, within the limits of the laws of physics.
This assistance will only be provided if you
press the brake pedal.

Deactivation / Activation

By default, the system is automatically
activated at every engine start.
The system can be deactivated or activated in
the vehicle settings menu in the screen.

Deactivation of the system is
signalled by the illumination of this
indicator lamp, accompanied by the
display of a message.

182

Driving

C4-Picasso-II_en_Chap04_conduite_ed02-2016

Operating fault

In the event of a fault, you are alerted
by the illumination of this warning
lamp, accompanied by the display of
a message and an audible signal.

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.

Clean the windscreen regularly,
particularly the area in front of the
camera.
Do not allow snow to accumulate on
the bonnet or roof of the vehicle as this
could mask the camera's view.
Clean the front bumper, removing mud,
snow, ...

There may be interference in the
operation of the camera or it may not
work at all in the following situations:
- poor visibility (inadequate street

lighting, falling snow, heavy rain,
dense fog, ...),

- dazzle (headlamps of an

approaching vehicle on the other
side of the road, low sun, reflection
on a wet road, leaving a tunnel,
alternating between light and
shade, ...),

- camera or radar masked (mud,

frost, snow, ...).

In these situations, detection
performance may be reduced.

Check that the sensors (camera and radar) are
not covered by dirt, mud, frost, snow...
If the problem persists, contact a CITROËN
dealer or a qualified workshop to have the
system checked.

183

4

Driving

C4-Picasso-II_en_Chap04_conduite_ed02-2016

Assisted Lane Departure Warning System

Using a camera placed at the top of the windscreen to identify lane markings on the ground, this system corrects the trajectory of the vehicle while
alerting the driver if it detects a risk of involuntary crossing of a line.
This system is particularly useful on motorways and main roads.

This system is a driving aid which cannot,
in any circumstances, replace the need
for vigilance on the part of the driver.
The driver remains responsible for the
vehicle in all circumstances. The system
helps the driver only when there is a risk
of the vehicle involuntarily wandering
from the lane it is being driven on. It does
not manage the safe driving distance, the
speed of the vehicle or the brakes.
The driver must hold the steering wheel in
a way that allows control to be taken back
in circumstances where the system is not
able to intervene (where there are no lane
markings, for example).
It is necessary to observe the driving
regulations and take a break every two
hours.

Operation

Conditions for operation

The speed of the vehicle must be between 40
and 112 mph (65 and 180 km/h).
The carriageway must have at least one lane
marking (solid or broken) on the ground.
The driver must hold the wheel with both
hands.
The change of trajectory is not accompanied by
operation of the direction indicators.
The ESC system must be activated.

Once the system identifies a risk of the vehicle
involuntarily crossing one of the lane markings
detected, it makes the correction to the
trajectory necessary to return the vehicle to its
initial path.
The driver will then notice a turning movement
of the steering wheel.

This warning lamp flashes during
trajectory correction.

If the driver wishes to maintain the
trajectory of the vehicle, they can
prevent the correction by keeping a firm
grip on the wheel (during an avoiding
manoeuvre, for example).
The correction is interrupted if the
direction indicators are operated.

184

Driving

C4-Picasso-II_en_Chap04_conduite_ed02-2016

However, with the "Blind Spot Monitoring
System" activated, if the driver starts changing
lane and another vehicle is detected in the
vehicle's blind spot, the system will correct
the trajectory of the vehicle even though the
direction indicators are on.
For more information on the Blind Spot
Monitoring System

, refer to the corresponding

section.

If the system detects that the driver is
not holding the wheel firmly enough
during an automatic correction of
trajectory, it interrupts the correction.
An alert is triggered to encourage
the driver to take back control of the
vehicle.

Activation / Deactivation

Activation / deactivation of the system is done
in the Driving

menu of the touch screen.

Select the "Driving functions" tab then
"Lane assist

".

The state of the system stays in memory when
the ignition is switched off.

While the direction indicators are on and for
a few seconds after switching them off, the
system considers that any change of trajectory
is voluntary and no correction is triggered
during this period.

185

4

Driving

C4-Picasso-II_en_Chap04_conduite_ed02-2016

Driving situations and associated alerts

To benefit from all of the information needed in the instrument panel, you must first select the "DRIVING" display mode.
The table below describes the alerts and messages displayed according to the driving situation.
The display of these alerts is not sequential.

State of
the system

Warning
lamp

Associated display
and message

Comment

OFF

System deactivated.

ON

System active, conditions not met:
- speed below 40 mph (65 km/h),
- no lane marking recognised,
- ESC deactivated or operation triggered,
- "dynamic" driving.

ON

Automatic deactivation / standby of the system (for example: detection of a trailer, use of the
"space-saver" spare wheel provided with the vehicle).

ON

Detection of lane markings.
Speed above 40 mph (65 km/h).

ON

The system corrects the trajectory on the side concerned or the risk of involuntary crossing is
detected (orange line).

ON

"Take back the wheel".

- If, during correction, the system detects that the driver has not held the wheel for a few

seconds, it interrupts the correction and returns control to the driver.

- During correction of the trajectory, the system determines that the correction will not be

enough and a solid line is crossed: the driver is warned that they must complete the correction
of trajectory.

186

Driving

C4-Picasso-II_en_Chap04_conduite_ed02-2016

Limits of operation

The system goes into standby
automatically in the following cases:
- ESC deactivated or operation

triggered,

- speed below 40 mph (65 km/h) or

above 112 mph (180 km/h),

- connected electrically to a trailer,
-

use of the "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 where there are no lane

markings,

- operation of the direction indicators,
- driving in a tight corner,
- crossing of the inside line of a

corner,

- inactivity by the driver detected

during correction.

The system may not operate correctly
or at all in the following situations:
- conditions of poor visibility

(inadequate street lighting,
snowfall, rain, fog),

- dazzle (headlamps of on oncoming

vehicle, low sun, reflections on a
wet road surface, leaving a tunnel,
alternating light and shade),

- area of the windscreen in front of

the camera dirty, misted, frosted,
snow-covered, damaged or
covered by a sticker,

- road markings absent, worn,

hidden (snow, mud) or multiple
(roadworks),

- running close to the vehicle in front

(the lane markings may not be
detected),

- narrow, winding roads.

Risk of undesirable operation

Deactivation of the system is recommended in
the following situations:
- driving on a road surface in poor condition,
- unfavourable weather conditions,
- driving on slippery surfaces (ice).

The system is not designed for the following
driving situations:
- driving on a speed circuit,
- driving with a trailer,
- driving on a rolling road,
- driving on unstable surfaces.

In the event of a fault with the system, you are
alerted by the illumination of these warning
lamps in the instrument panel, accompanied by
the display of a message and an audible signal.
Have the system checked by a CITROËN
dealer or a qualified workshop.

Operating fault

187

4

Driving

C4-Picasso-II_en_Chap04_conduite_ed02-2016

Blind Spot Monitoring System

Activation / Deactivation

A warning lamp 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.

This system warns the driver of the presence of
another vehicle in the blind spot angle of their
vehicle (areas masked from the driver's field
of vision), as soon as this presents a potential
danger.

Sensors fitted in the front and rear bumpers
monitor the blind spots.
The state of the system remains in memory on
switching off the ignition.

This system is designed to improve safety when driving and is in no circumstances a
substitute for the use of the interior rear view mirror and door mirrors. It is the driver's
responsibility to constantly check the traffic, to assess the distances and relative speeds of
other vehicles and to predict their movements before deciding whether to change lane.
This system is a driving aid that cannot, in any circumstances, replace the need for
vigilance on the part of the driver.

Activation and deactivation of the system is
done in the Driving menu of the touch screen.

Select the "Driving functions" tab, then
"Blind spot sensors

".

This indicator lamp comes on in the
instrument panel.

To deactivate the system, select "Blind spot
sensors

" again in the "Driving functions" tab.

The indicator lamp goes off.

The system is automatically deactivated
when towing with a towbar approved by
CITROËN.

188

Driving

C4-Picasso-II_en_Chap04_conduite_ed02-2016

The alert is given by a warning lamp which
comes on in the door mirror on the side in
question as soon as a vehicle - car, lorry,
bicycle - is detected.
The following conditions must be met for this:
- all vehicles are moving in the same

direction and in adjacent lanes,

- the speed of your vehicle is between 7 and

87 mph (12 and 140 km/h),

- you overtake a vehicle with a speed

difference of less than 6 mph (10 km/h),

- a vehicle overtakes you with a speed

difference of less than 16 mph (25 km/h),

- the traffic is flowing normally,
- in the case of an overtaking manoeuvre,

if this is prolonged and the vehicle being
overtaken remains in the blind spot,

- you are driving on a straight or slightly

curved road,

- your vehicle is not pulling a trailer, a

caravan, etc.

No alert will be given in the following situations:
- in the presence of non-moving objects

(parked vehicles, barriers, street lamps,
road signs, etc.),

- with vehicles moving in the opposite

direction,

- driving on a winding road or a sharp corner,

Operation

- when overtaking (or being overtaken by) a

very long vehicle (lorry, coach, etc,) which
is at the same time detected at the rear
in the blind spot angle and present in the
driver's forward field of vision,

- in very heavy traffic: vehicles detected in

front and behind are confused with a lorry
or a stationary object,

- when overtaking quickly.

189

4

Driving

C4-Picasso-II_en_Chap04_conduite_ed02-2016

In the event of a fault, this warning
lamp flashes for a few moments in
the instrument panel, accompanied
by illumination of the Service warning
lamp and the display of a message.

Operating fault

Contact a CITROËN dealer or a qualified
workshop to have the system checked.

The system may suffer temporary
interference in certain weather
conditions (rain, hail, etc.).
In particular, driving on a wet surface
or moving from a dry area to a wet area
can cause false alerts (for example, the
presence of a fog of water droplets in
the blind spot angle is interpreted as a
vehicle).
In bad or wintry weather, ensure that
the sensors are not covered by mud, ice
or snow.
Take care not to cover the warning zone
in the door mirrors or the detection
zones on the front and rear bumpers
with adhesive labels or other objects;
they may hamper the correct operation
of the system.

High pressure jet wash
When washing your vehicle, direct the
lance at least 30 cm away from the
sensors.

In addition to the fixed warning lamp in the door
mirror on the side in question, a correction of
trajectory will be felt if you cross a lane marking
with the direction indicators on, to help you
avoid a collision.

Conditions for operation

The following systems must be activated:
- Blind Spot Monitoring System,
- Assisted Lane Departure Warning System.

Assisted Blind Spot
Monitoring System*

For more information on the Blind Spot
Monitoring System

and the Assisted Lane

Departure Warning System, refer to the
corresponding sections.

* Depending on version.

190

Driving

C4-Picasso-II_en_Chap04_conduite_ed02-2016

Fatigue detection system

It is recommended that you take a break as soon as you feel tired or at least every two hours.
Depending on version, the function either has the "Driving time warning" only, or this combined with the "Fatigue detection system".

Driving time warning

The system triggers an alert once it detects that
the driver has not taken a break after two hours
of driving at a speed above 40 mph (65 km/h).

This alert takes the form of the display of a
message encouraging you to take a break,
accompanied by an audible signal.
If the driver does not follow this advice, the
alert is repeated hourly until the vehicle is
stopped.

The system cannot in any
circumstances replace the need for
vigilance on the part of the driver.
Do not take the wheel if you are tired.

As soon as the speed of the vehicle
drops below 40 mph (65 km/h), the
system goes into standby.
The driving time is counted again once
the speed is above 40 mph (65 km/h).

The system resets itself if one of the following
conditions is met:
- engine running, the vehicle has been

stationary for more than 15 minutes,

- the ignition has been switched off for a

few minutes,

- the driver's seat belt is unfastened and

their door is open.

The system is activated or deactivated in the
touch screen tablet.

Activation / Deactivation

In the Driving

menu, select the "Vehicle

settings" tab, then "Security

" and "Fatigue

Detection System

".