ESP CITROEN C4 PICASSO 2020 Service Manual

149
Operation of the cruise control requires
a vehicle speed of at least 25 mph (40 km/h).
As well as engagement:
-

o
f third gear or higher with a manual
gearbox,
-

o
f second gear or higher in manual mode
with an automatic gearbox,
-

o
f position D with an automatic gearbox.
The cruise control is paused manually by
pressing button 4
or pressing the brake pedal
or if the ESC system is invoked for safety
reasons.
It is possible to exceed the programmed speed
temporarily by depressing the accelerator
pedal.
To return to the programmed speed, simply
release the accelerator pedal until the
programmed cruise speed is reached again.
Switching off the ignition cancels any
programmed speed setting.
The cruise control system cannot, in any circumstances,
replace the need to obser ve speed limits, nor can it
replace the need for vigilance on the part of the driver.
It is recommended that you always keep your feet close
to the pedals.
Steering mounted controlsDisplays in the instrument panel
6.Cruise control pause/resume indication.
7. Cruise control selection indication.
8. Value of the speed setting.
For more information on Memorising speeds ,
refer to the corresponding section.
For more information on Speed Limit
recognition and recommendation and its
memorisation, refer to the corresponding
section.
Switching on
F Turn wheel 1 to the CRUISE position: cruise
control mode is selected but the function is
paused.
1.
Select cruise control mode.
2. Set the current speed as the cruise speed
setting/Reduce the cruise speed setting.
3. Set the current speed as the cruise speed
setting/Increase the cruise speed setting.
4. Pause/Resume cruise control.
5. Display the list of memorised speeds or
Use the speed suggested by the sSpeed
Limit recognition and recommendation
system.
6
Driving

151
When the cruise control is switched on, be
careful if you maintain the pressure on one
of the programmed speed modification
buttons: this may result in a very rapid
change in the speed of your vehicle.
Do not use the cruise control on slippery
roads or in heavy traffic.
When descending a


steep hill, the cruise
control system cannot prevent the vehicle
from exceeding the programmed speed.
On steep climbs or when towing, the
programmed speed may not be reached
or maintained.
The use of mats not approved by
CITROËN may inter fere with the operation
of the cruise control.
To avoid any risk of jamming of the pedals:
-

e
nsure that mats are secured correctly,
-

n
ever fit one mat on top of another.Adaptive cruise control
The system allows the speed of
your vehicle to be maintained at the
setting you have made, and also to
respect the inter-vehicle time that
you have selected between your
vehicle and the one in front, when
the situation permits it.
Switching between the
types of cruise control
The choice between "adaptive" and "standard"
cruise control is made in the Driving menu.
F

T
urn the cruise control wheel to
the "CRUISE" position.
F

I
n the Driving menu, select the Driving
functions tab and then Active cruise
control to activate or deactivate adaptive
cruise control.
For more information on the Cruise
control , refer to the corresponding
section.
Principles of operation
Using radar with a range of about 100 metres,
l ocated at the front of the vehicle, this system
detects a
vehicle travelling in front of your
vehicle.
It automatically adapts the speed of your
vehicle to that of the vehicle in front.
If the vehicle in front is travelling more slowly,
the system progressively reduces the speed of
your vehicle using just engine braking (as if the
driver had pressed the " -" b u t to n).
If your vehicle is too close to the vehicle in
front or is approaching it too quickly, adaptive
cruise control is automatically deactivated.
The driver is then alerted by an audible signal
accompanied by a


message.
If the vehicle in front accelerates or changes
lane, the adaptive cruise control gradually
accelerates your vehicle to return to the
programmed speed.
If the driver operates the direction indicator to
the left (left-hand drive) or to the right (right-
hand drive), to overtake a
slower vehicle, the
adaptive cruise control allows your vehicle to
temporarily approach the vehicle in front to
assist the overtaking manoeuvre, though never
exceeding the programmed speed.
The adaptive cruise control operates
by day and at night, in fog or moderate
rainfall.
6
Driving

153
Displays on the instrument
panel
Information is grouped together on the
instrument panel.
Operation
Switching on
Adaptive cruise control must be selected in the
Driving menu.
F

T
urn wheel 1 to the "CRUISE " position:
cruise control mode is selected but the
function is paused.
F

P
ress one of the buttons 2 or 3: the current
speed of your vehicle becomes the cruise
speed setting.
The cruise control is activated (ON).
By default, the inter-vehicle time is set at
2


seconds.
Other wise, the last setting made will be used
when switching on the system.
Modification of the cruise speed
F choose a speed setting: it is displayed on
the instrument panel.
The selection screen closes after a
few
moments. The modification is then accepted.
-

b
y pressing button 5 , if your vehicle is
equipped with speed limit recognition:
F

t
he speed to be memorised appears on
the instrument panel.
F
press button 5
again to save the speed.
The value appears immediately on the
instrument panel.
For more information on Speed Limit
recognition and recommendation and its
memorisation, refer to the corresponding
section.
As a
precaution, it is recommended that
you select a
cruise speed setting close to
the current speed of your vehicle.
Changing the inter-vehicle
distance
Press button 6 to select a new inter-vehicle
d istance setting from the three levels (" Close",
" Normal ", "Distant ").
This setting remains memorised, whatever the
state of the system.
5.
Display the list of memorised speeds or,
Use the speed suggested by the Speed
Limit recognition and recommendation
system.
6. Display and adjustment of the
programmed inter-vehicle distance.
For more information on Memorising speeds ,
refer to the corresponding section.
For more information on Speed Limit
recognition and recommendation and its
memorisation, refer to the corresponding
section.
7. Cruise control pause/resume indication.
8. Cruise control selection indication, or
vehicle speed adjustment phase. 9.
Value of the programmed speed or
adjusted speed below the programmed
speed.
-

u

sing buttons 2

or 3:
F

b

y successive short presses, to change
in steps of + or – 1

mph (km/h),
F
b
y a

maintained press, to change in steps
of + or – 5

mph (km/h).
-

p

ressing button 5 :
F

t

he six speeds memorised are displayed
in the touch screen,
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Driving

158
Primarily designed for driving on main
roads and motor ways, this system only
works on moving vehicles, driving in the
same direction as your vehicle.
Principle of operation
The system automatically adapts the speed of
your vehicle to that of the vehicle in front, to
maintain a


constant distance.
If the vehicle in front is driving more slowly, the
system slows or even stops your vehicle, using
engine braking and the braking system (for
versions fitted with an automatic gearbox).
If the vehicle in front accelerates or changes
lane, the cruise control progressively
accelerates your vehicle to return to the
programmed speed.
If the driver operates a
direction indicator to
overtake a
slower vehicle, the cruise control
allows your vehicle to temporarily approach
the vehicle in front to assist the overtaking
manoeuvre, though never exceeding the
programmed speed.
The brake lamps illuminate as soon as
the braking system is activated with
deceleration of the vehicle. This system is a
driving aid that cannot,
in any circumstances, replace the need to
obser ve speed limits and safety distances,
nor the need for vigilance on the part of
the driver.
Some vehicles present on the road may
not be properly seen or may be poorly
interpreted by the camera and/or radar
(e.g. a lorry), which may lead to a poor
assessment of the distances and lead to
the vehicle inappropriately accelerating or
braking.
The driver must be ready at all times
to retake control of their vehicle by
permanently holding both hands on the
steering wheel and keeping their feet near
the brake and accelerator pedals.
Steering mounted control
1. Select cruise control mode. 2.
Use the current speed as the speed
setting/decrease the speed setting.
3. Use the current speed as the speed
setting/increase the speed setting.
4. Pause/Resume cruise control.
5. Use the speed suggested by the Speed
Limit recognition and recommendation.
6. Display and adjustment of the
programmed inter-vehicle distance.
For more information on the Speed Limit
recognition and recommendation , refer to
the corresponding section.
Displays in the instrument
panel
7. Indication of the presence/absence of
a
target vehicle.
8. Indication of cruise control activation/
deactivation.
9. Value of the speed setting.
Driving

160
As a safety measure, wait until the current
s peed approaches the speed setting to
reactivate the function by pressing button 4 .
Modification of the speed
setting
With the engine running and cruise control on
(green), you can modify the speed setting.
Modification from the current
speed
F By successive short presses on button 2 or
3 , to lower or raise the setting in steps of +
or – 1
mph (km/h),
F

B
y a maintained press on button 2 or 3, to
lower or raise the setting in steps of + or –
5
mph (km/h). Take care: pressing and holding button
2
or 3 results in a rapid change in the
speed of your vehicle.
Modification from the
Speed Limit recognition and
recommendation system
F The suggested speed is displayed in the instrument panel.
F

M
ake an initial press on button 5 ; a
message is displayed to confirm the
memorisation request.
F

P
ress button 5 again to save the suggested
speed.
The speed displays immediately in the
instrument panel as the new speed setting.
For more information on the Speed Limit
recognition and recommendation , refer to
the corresponding section.
The driver should press the accelerator pedal
to move off, then reactivate the system above
19

mph (30

km/h) by pressing button 2
, 3

or 4
.
If the driver takes no action following this
immobilisation, the electric parking brake is
applied automatically after a

while (approx. five
minutes).
As a precaution, it is recommended
that you select a
cruise speed close to
the current speed of your vehicle, so
as to avoid any sudden acceleration or
deceleration of the vehicle.
Modification of the programmed
inter-vehicle distance
Engine running and with the wheel at the
" CRUISE " position:
F

P
ress button 6 to display the selection
screen for inter-vehicle distance.
F

B
y pressing button 6 repeatedly, cycle
through the predefined settings.
The selection screen closes after a
few
seconds.
The modification is then accepted.
This setting remains in memory, whatever the
state of the system and when the ignition is
switched off.
The selection also applies to the stopping
distance (versions with EAT6
and
EAT8
automatic gearbox).
Three threshold settings are suggested for the
inter-vehicle distance:
-
"
Distant " (3 dashes),
- "
Normal " (2 dashes),
- "
Close " (1 dash).
Driving

166
The vehicle has a camera located at the top of
t he windscreen, and, depending on the version,
a radar located in the front bumper.
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 replace the need for
vigilance on the part of the driver.
As soon as the system detects a
potential
obstacle, it prepares the braking circuit in
case automatic braking is needed. This
may cause a
slight noise and a slight
sensation of deceleration.
Deactivation/Activation
By default, the system is automatically
activated at every engine start.
The system can be deactivated or activated via
the vehicle settings menu.
Deactivation of the system is
signalled by the illumination of this
indicator lamp, accompanied by the
display of a
message.
Operating conditions and
limits
The ESC system must not be faulty.
The ASR must not be deactivated.
All passenger seat belts must be fastened.
Driving at a steady speed on roads with few
bends is required. The following situations may interfere with
the operation of the system or prevent it
from working:
-

p
oor visibility (inadequate street
lighting, falling snow, heavy rain, dense
f o g , e t c .),
-
d
azzle (headlamps of an oncoming
vehicle, low sun, reflections on a damp
road, leaving a tunnel, alternating
shade and light, etc.),
-
c
amera or radar obstructed (mud, frost,
snow, condensation, etc.).
On versions with camera alone, this
message indicates to you that the camera
is obstructed: " Driving aids camera:
visibility limited, see user guide ".
In these situations, detection performance
may be reduced.
Driving

167
In the following cases, deactivating the system
via the vehicle's configuration menu is advised:
-
t
owing a trailer,
-

c
arrying long objects on roof bars or roof
rack,
-
w

ith snow chains fitted,
-

b
efore using an automatic car wash, with
the engine running,
-

b
efore placing the vehicle on a rolling road
in a
workshop,
-

t
owed vehicle, engine running,
-

d
amaged front bumper (version with radar),
-

f
ollowing impact to the windscreen close to
the detection camera. The system is automatically deactivated
after the use of the "space-saver" type
spare wheel is detected, or if a
fault with
the lateral brake lamps is detected.
It is possible that warnings are not given,
are given too late or seem unjustified.
Consequently, always stay in control of
your vehicle and be prepared to react at
any time to avoid an accident.
After an impact, the function automatically
stops operating. Contact a
CITROËN
dealer or a
qualified workshop to have the
system checked.
If the front bumper is to be repainted or
retouched, contact a
CITROËN dealer
or a
qualified workshop. Certain types of
paint could inter fere with the operation of
the radar.
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.
Modifying the alert trigger
threshold
This threshold determines how you wish
to be alerted of the presence of a moving
or stationary vehicle in front of you, or
a
pedestrian present in your traffic lane.
The current threshold can only be
modified via the touch screen's
Driving menu.
You can select one of three predefined
thresholds:
-
"Distant ",
-
"Normal ",
-
"Close ".
The last threshold selected is kept in memory
when the ignition is switched off.
Operation
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.
Clean the windscreen regularly,
particularly the area in front of the camera.
The internal sur face of the windscreen can
also become misted around the camera.
In humid and cold weather, demist the
windscreen regularly.
Do not allow snow to accumulate on the
bonnet or roof of the vehicle as this could
conceal the detection camera.
Clean the front bumper, especially around
the radar, removing mud, snow, etc.
6
Driving

170
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.
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.
However, with the Blind Spot Detection system
activated, if the driver starts changing lanes
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
Detection , 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.
Driving situations and
associated alerts
To benefit from all necessary information on
the instrument panel, you must previously
select the "DRIVING" display mode.
The table below describes the alerts and
messages displayed depending on the driving
situation.
The display of these alerts is not sequential.
Driving

173
Blind Spot Detection
This system warns the driver of the presence
of another vehicle in the blind spots of their
vehicle (areas hidden from the driver's field
of vision), as soon as this presents a potential
danger.
A fixed warning lamp appears in the door mirror
on the side in question:
-
i

mmediately, when being overtaken,
-

a
fter a delay of about one second, when
overtaking a
vehicle slowly. This driving aid 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
relative distances and 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/Deactivation
The function is activated and
deactivated in the Driving menu of
the touch screen.
When the function is activated,
this indicator lamp comes on in the
instrument panel.
The state of the system stays in memory when
switching off the ignition.
The system is automatically deactivated
when towing with a
towing device
approved by CITROËN.
Operation
Sensors fitted in the front and rear bumpers
monitor the blind spots.
The alert is given by an orange warning lamp
coming on in the relevant door mirror, as soon
as a
vehicle – car, lorry, cycle – is detected.
The following conditions must be met for this:
-

a
ll vehicles are moving in the same direction
and in adjacent lanes,
-

t
he speed of the vehicle must be between
7
and 87 mph (12 and 140 km/h),
-

y
ou overtake a vehicle with a speed
difference of less than 6
mph (10 km/h),
-

a v
ehicle overtakes you with a speed
difference of less than 16
mph (25 km/h),
-

t
he traffic is flowing normally,
-

ov
ertaking 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.
6
Driving

175
Active Blind Spot
Monitoring System
(depending on version)
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:
- B lind Spot Detection,
-
L

ane Departure Warning System.
The speed of the vehicle must be between
40
and 87 mph (65 and 140 km/h) inclusive.
Fatigue detection system
Take a break as soon as you feel tired or at
l east every two hours.
Depending on version, the function relies either
on the "Driver Attention Warning" system alone
or combined with the "Driver Attention Alert"
system.
These systems cannot in any circumstances
replace the need for vigilance on the part
of the driver who must remain in control
of their decisions. In no case can these
systems keep the driver awake or prevent
them from falling asleep at the wheel.
It is the driver's responsibility to stop if they
feel tired.
Activation/Deactivation
These functions are activated and
deactivated in the Driving menu of
the touch screen.
The state of the system stays in the memory
when the ignition is switched off.
Driver Attention 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 is issued via 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 resets itself if one of the following
conditions is met:
-
e
ngine running, the vehicle has been
stationary for more than 15

minutes,
-
t
he ignition has been switched off for a few
minutes,
-
t
he driver's seat belt is unfastened and their
door is open.
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).
Driver Attention Alert
Depending on version, the "Driver Attention
Warning" may be combined with the "Driver
Attention Alert".
6
Driving