2020 CITROEN C4 PICASSO Owners Manual

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

168
These levels of alert are based on the inter-
vehicle time between your vehicle and the
vehicle in front.
They take 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.Level 1 (orange) : visual alert only,
signalling to you that the vehicle in
front is very close.
The message " Vehicle close" is
displayed.
Level 2 (red) : visual and audible
alert, warning you that a
collision is
imminent.
The message " Brake!" is displayed.
Where the speed of your vehicle is too fast
approaching another vehicle, the first level
of alert may not be displayed: the level
2
alert may be displayed directly.
Important: alert level 1
is never displayed
when the " Close" trigger threshold has
been selected.Intelligent emergency
braking assistance
If the driver brakes, but not sufficiently to avoid
a collision, this system will supplement the
braking, within the limits of the laws of physics.
This assistance will only be provided if you
press the brake pedal.
Active Safety Brake
This function, also called automatic emergency
braking, inter venes following the alert if the
driver does not react quickly enough and does
not operate the vehicle's brakes. It aims to reduce the speed of impact or avoid
a
frontal collision by your vehicle where the
driver fails to react.
Operation
The system operates under the following
conditions:
-

T
he vehicle's speed does not exceed
37
mph (60 km/h) when a pedestrian is
detected.
-

T
he vehicle's speed does not exceed
50
mph (80 km/h) when a stationary vehicle
is detected.
-

T
he vehicle's speed is between 6 mph and
53
mph (10 km/h and 85 km/h) (versions
with camera alone) or 87
mph (140 km/h)
(versions with camera and radar) when
a
moving vehicle is detected.If the camera and/or radar have
confirmed the presence of a
vehicle
or a
pedestrian, this warning lamp
flashes once the function is acting
on the vehicle's brakes.
With an automatic gearbox, in the event of
automatic emergency braking until the vehicle
comes to a
complete stop, keep the brake
pedal pressed down to prevent the vehicle from
starting off again.
With a
manual gearbox, in the event of
automatic emergency braking until the vehicle
comes to a
complete stop, the engine may stall.
Driving

169
The driver can maintain control of the
vehicle at any time by sharply turning
the steering wheel and/or pressing the
accelerator pedal.
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.
Malfunction
In the event of a fault with the
s ystem, you are alerted by the
illumination of this warning lamp,
accompanied by the display of
a


message and an audible signal.
Lane Departure Warning
System
Using a camera located at the top of the
w indscreen to identify lane markings on the
ground, the 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 motor ways
and main roads.
Conditions for operation
The speed of the vehicle must be between
40 mph and 112 mph (65 km/h and 180 km/h).
The driver must hold the steering wheel with
both hands.
The change of trajectory must not be
accompanied by operation of the direction
indicators.
The ESC system must be activated and fault-
free. This system is a
driving aid that cannot,
in any circumstances, replace the
driver's own vigilance. The driver must
remain in control of the vehicle under 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
in. It does not manage the safe driving
distance, the speed of the vehicle or the
brakes.
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 inter vene
(if lane markings disappear, for example).
It is necessary to obser ve the driving
regulations and take a break every two
hours.Operation
Once the system identifies a risk of the vehicle
i nvoluntarily crossing one of the lane markings
detected, it makes the correction to the
trajectory required to return the vehicle to its
initial path.
The driver will notice a
turning movement of the
steering wheel.
This warning lamp flashes during
trajectory correction.
Contact a

CITROËN dealer or a

qualified
workshop to have the system checked.
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

171
Status of the
functionIndicator
lampDisplay and/
or associated
message
Comments
OFF
(grey)System deactivated.
ON (grey)System active, conditions not met:
-

s
peed below 40 mph (65 km/h),
-

n
o lane marking recognised,
-
E

SC deactivated or operation triggered,
-

"
sporty" driving.
ON
(grey)Automatic deactivation/standby of the system (for example: detection of a
trailer, use of the
"space-saver" spare wheel provided with the vehicle).
Status of the
function Indicator
lampDisplay and/
or associated
message
Comments
ON
(green)Detection of lane markings.
Speed above 40
mph (65 km/h).
ON (orange)/(green)The system corrects the trajectory on the side where the risk of involuntary crossing is
detected (orange line).
ON (orange)/(green)
"Take control of the vehicle". -

I
f, 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.
-

D
uring correction of the trajectory, if the system determines that the correction will not be
enough and that a
solid line is crossed (orange line): the driver is warned that they must
complete the correction of the trajectory.
6
Driving

172
Deactivation of the system is recommended in
the following situations:
-
d
riving on a road sur face in poor condition,
-
p

oor weather conditions,
-

d
riving on slippery sur faces (ice).
Activation/Deactivation
Activation and deactivation of the system is
done in the Driving menu of the touch screen.
Select the " Driving functions " then the "Lane
assist " tab.
The system state remains in memory when the
ignition is switched off.
Malfunction
Operating limits
The system goes into standby automatically in
the following cases:
-
E

SC deactivated or operation triggered,
-

s
peed below 40 mph (65 km/h) or greater
than 112
mph (180 km/h),
-
c

onnected electrically to a

trailer,
-

u
se of the "space-saver" spare
wheel detected (as detection is not
immediate, deactivation of the system is
recommended),
-

d
ynamic driving style detected, pressure on
the brake or accelerator pedal,
-
d

riving where there are no lane markings,
-
a

ctivation of the direction indicators,
-

c
rossing the inside line on a bend,
-

d
riving in a tight corner,
-

i
nactivity by the driver detected during
correction. The following situations may interfere with
the operation of the system or prevent it
working:
-

c
onditions of poor visibility (inadequate
street lighting, snowfall, rain, fog),
-

d
azzle (headlamps of an oncoming
vehicle, low sun, reflections on a
damp
road, leaving a
tunnel, alternating
shade and light),
-

w
indscreen area located in front of the
camera: dirty, misted, frost-covered,
snow-covered, damaged or covered by
a


s t i c ke r,
-

l
ane markings worn, hidden (snow,
mud) or multiple (roadworks, etc.),
-

r
unning close to the vehicle in front
(the lane markings may not be
detected),
-

r
oads that are narrow, winding, etc.
Risk of undesirable operation
The system is not intended for driving in the
following situations:
-
d
riving on a speed circuit,
-

d
riving with a trailer,
-

d
riving on a rolling stand,
-

d
riving on unstable sur faces.
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.
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

174
Operating fault
In the event of a fault with the
s ystem, this warning lamp flashes
for a
few moments in the instrument
panel, accompanied by the Ser vice
warning lamp coming on and the
display of a
message.
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 sur face or
the transition from a dry area to a wet area
can cause false alerts (e.g. the presence
of water droplets in the blind spot is
interpreted as a vehicle).
In bad or wintry weather, ensure that the
sensors are not covered with 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, keep the
nozzle at a
minimum distance of 12 inches
(30
cm) from the sensors.
No alert will be given in the following situations:
-

i

n the presence of non-moving objects
(parked vehicles, barriers, street lamps,
road signs, etc.), -

w

ith vehicles moving in the opposite
direction,
-

d

riving on a winding road or a sharp corner,
-

w

hen overtaking or being overtaken by
a

very long vehicle (lorry, bus, etc.) which
is both detected in the rear blind spot and
present in the driver's front field of vision,
-

w

hen overtaking quickly,
-

i

n very heavy traffic: vehicles detected in
front and behind are confused with a lorry or
a


stationary object,
-

i

f the Park Assist function is activated.
Driving