2020 CITROEN C4 PICASSO engine

140
The information appears in the
instrument panel in the form of an
ar row.
With a
manual gearbox, the arrow may be
accompanied by the gear recommended.
This arrow may be pointing up or down,
depending on the context.
The system adapts its gear efficiency
recommendation according to the driving
conditions (slope, load, etc.) and the
driver's requirements (power, acceleration,
b r a k i n g , e t c .) .
The system never suggests:
-
e

ngaging first gear,
-
enga

ging reverse gear.
Stop & Start
Per fect for urban use, the Stop & Start system
reduces fuel consumption and exhaust
emissions as well as the noise level when
stationary.
The Stop & Start system puts the engine
temporarily into standby – STOP mode – during
stops in the traffic (red lights, traffic jams, or
other, etc.). The engine restarts automatically –
START mode – as soon as you wish to move off
again.
Restarting occurs instantaneously, quickly and
silently.
Operation
Going into engine STOP mode
This indicator lamp comes on in the
instrument panel and the engine
goes into standby automatically.
-

W

ith a manual gearbox , at speeds below
12

mph (20 km/h), or with the vehicle
stationary (with the PureTech 110, 130
and
BlueHDi 100, 130
versions), when you place
the gear lever in neutral and you release the
clutch pedal,
-

W

ith an automatic gearbox , at speeds
below 2
mph (3 km/h), or when the vehicle
is stationary (depending on version), when
you press the brake pedal or place the gear
selector into position N .
If your vehicle is fitted with this system, a time
counter calculates the sum of the periods in
STOP mode during a
journey. It resets to zero
every time the ignition is switched on with the
"START/STOP" button. For your convenience, during parking
manoeuvres, STOP mode is not available
for a
few seconds after coming out of
reverse gear.
The Stop & Start system does not modify
the vehicle's functions, such as, for
example, braking, power steering, etc.
Never refuel with the engine in STOP
mode; you must switch off the ignition with
the "START/STOP" button.
Special cases: STOP mode not
available
STOP mode is not invoked when:
- t he driver's door is open,
-

t
he driver's seat belt is not fastened,
-

t
he vehicle has not exceeded 6 mph
(10
km/h) since the last engine start using
the "START/STOP" button,
-

t
he electric parking brake is applied or being
applied,
-

t
he engine is needed to maintain
a


comfortable temperature in the passenger
compartment,
-

d
emisting is active,
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141
Going into engine START mode
This indicator lamp goes off and the
engine restarts automatically.
-

W

ith a manual gearbox , when you fully
depress the clutch pedal.
-

W

ith an automatic gearbox :
•

g

ear selector in position D or M , when
you release the brake pedal,
•

o

r gear selector in position N and brake
pedal released, when you place the gear
selector in position D or M ,
•
o

r when you engage reverse gear.
Special cases: START mode
activated automatically
START mode is activated automatically if:
- y ou open the driver's door,
-
y

ou unfasten the driver's seat belt,
-

t
he speed of the vehicle exceeds 16 mph
(25
km/h) with a manual gearbox (2 mph
(3
km/h) with PureTech 110, 130, THP 165,
180
and BlueHDi 100, 130 versions), 2 mph
(3
km/h) with an automatic gearbox,
-

t
he electric parking brake is being applied,
-
c

ertain specific conditions (battery charge,
engine temperature, braking assistance,
air conditioning setting, etc.) where the
engine is needed for control of the system
or vehicle.
Deactivation/Manual
reactivation
- certain special conditions (battery charge, engine temperature, braking assistance,
exterior temperature, etc.) where the engine
is needed for control of the
system.
In this case, this indicator lamp
flashes for a
few seconds then goes
of f.
This operation is perfectly normal.
In this case, this indicator lamp
flashes for a
few seconds, then goes
of f.
This operation is perfectly normal.
In certain circumstances, such as to
maintain the temperature in the passenger
compartment, it may be necessary to
deactivate the Stop & Start system. The system can be deactivated at any time,
once the ignition is switched on.
If the engine is in STOP mode, it then restarts.
The Stop & Start system is reactivated
automatically every time the ignition is switched
on.
The Stop & Start is deactivated in the Driving

menu of the touch screen.
Select "Stop & Start" to deactivate the system.
It is indicated by this warning lamp
coming on.
Select "Stop & Start" again to reactivate the
function. It is indicated by this indicator lamp
coming on.
Use of the adaptive cruise control
deactivates the Stop & Start function.
Operating fault
If the system fails, this warning lamp
flashes for a few seconds before
lighting up continuously, associated
with a


message.
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Driving

142
Have it checked by a CITROËN dealer or
a qualified workshop.
If a
fault occurs in STOP mode, the engine may
stall.
All of the instrument panel warning lamps come
on.
Depending on version, an alert message may also
be displayed, asking you to place the gear lever in
position N and press the brake pedal.
It is then necessary to switch off the ignition and
start the engine again using the "START/STOP"
button.
The Stop & Start requires the use of
a 12 V battery of special specification and
technology.
All work on this type of battery must be
carried out only by a
CITROËN dealer or
a


qualified workshop.
For more information on the 12
V batter y,
refer to the corresponding section.
Opening the bonnet
Before doing anything under the bonnet,
deactivate the Stop & Start system to avoid
the risk of injury related to an automatic
change to START mode. Driving on flooded roads
Before driving in a
flooded area, it is
strongly recommended that you deactivate
the Stop & Start system.
For more information on Driving advice ,
particularly on flooded roads, refer to the
corresponding section.
Tyre under-inflation
detection
System which automatically checks the
pressures of the tyres while driving.
The system monitors the pressure of the four
tyres when the vehicle is moving.
It compares the information given by the
wheel speed sensors with reference values,
which must be reinitialised after ever y tyre
pressure adjustment or wheel change .
The system triggers an alert as soon as it
detects a
drop in the pressure of one or more
tyres. The under-inflation detection system does
not replace the need for vigilance on the
part of the driver.
This system does not avoid the need to
check the tyre pressures (including the
spare wheel) every month as well as
before a


long journey.
Driving with under-inflated tyres worsens
road-holding, lengthens braking distances,
causes premature wear of the tyres,
particularly in adverse conditions (heavy
loads, high speeds, long journeys).
Driving with under-inflated tyres
increases fuel consumption.
The inflation pressures defined for your
vehicle can be found on the tyre pressure
label.
For more information on the
Identification markings , refer to the
corresponding section.
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.
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152
The adaptive cruise control uses only
engine braking to slow the vehicle.
Consequently the vehicle loses speed
slowly, as when releasing the accelerator
pedal.
The regulation range is limited: there will
no longer be any adjustment of speed if the
difference between the programmed speed
setting and the speed of the vehicle in front
becomes too high (19 mph (30 km/h)).
If the difference between the programmed
speed setting and the speed of the
vehicle in front is too great, the speed
cannot be adjusted: the cruise control is
automatically deactivated.
General information
The adaptive cruise control is switched on
manually, it requires the speed of the vehicle
to be between 25
mph (40 km/h) and 93 mph
(150


km/h) and the engagement of:
-

t
hird gear or higher with a manual gearbox,
-

s
econd gear in manual mode with an
automatic gearbox,
-
position D with an automatic gearbox. If the cruise speed setting is above
93
mph (150 km/h), the adaptive cruise
control switches to standard cruise control
mode, without automatic regulation of the
inter-vehicle safety distance (a message
appears in the instrument panel).
The adaptive cruise control cannot in any
circumstances replace the obser vation of
speed limits, nor the need for the vigilance
on the part of the driver.
It is recommended that you always keep
your feet close to the pedals.
The adaptive cruise control can be paused
manually or automatically:
-
b
y pressing button 4
,
-
b
y pressing the brake pedal,
- i f the ESC system is activated, for safety
reasons,
-

i
f there is an action on the electric parking
brake control,
-

w
hen an inter-vehicle time threshold is
reached (calculated according to the relative
speeds of your vehicle and the vehicle
in front and the inter-vehicle time setting
chosen),
-

w
hen the distance between your vehicle
and the one in front becomes too short, The inter-vehicle time setting is
memorised when switching off the ignition.
Steering mounted control
- when the speed of the vehicle in front is too
low,
-

w
hen the speed of your vehicle becomes
too low.
1. Select cruise control mode.
2. Use the current speed as the speed
setting/Lower the speed setting.
3. Use the current speed as the speed
setting/Raise the speed setting.
4. Pause/Resume cruise control.
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155
SymbolDisplay on the
instrument panel Associated
message
Comments
No vehicle detected:
the system operates as a
standard cruise control.
Detection of a
vehicle, at the limit of the range of the radar:
the system operates as a
standard cruise control.
"SPEED
ADJUSTED" Detection of a
vehicle that is too close or running at a speed lower than your vehicle's
cruise speed setting.
The system uses engine braking to slow your vehicle and then hold it at the speed of the
vehicle in front so as to obser ve the programmed inter-vehicle time.
The regulation range is limited to a
maximum difference of 19 mph (30 km/h) between the
cruise speed setting and the speed of the vehicle in front.
"SPEED
ADJUSTED" When the adjusted speed reaches the limit of regulation (speed setting – 19
mph
(30
km/h)), the adjusted speed flashes together with the speed setting to signal that
automatic deactivation of the system is imminent.
"Cruise control
paused". If the system exceeds the limit of speed adjustment that it can make and in the absence of
any reaction by the driver (operation of the direction indicator, change of lane, reduction in
the speed of the vehicle), the system is automatically paused.
The display of the deactivation message is accompanied by an audible signal.
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Driving

156
The adaptive cruise control uses only engine
braking to slow the vehicle. Consequently the
vehicle loses speed slowly, as when releasing
the accelerator pedal.
The system is paused automatically:
-
i
f the vehicle in front slows down too much
or too suddenly, and the driver does not
brake,
-

i
f a vehicle comes between your vehicle and
the vehicle in front.
The regulation range is limited to a maximum
d ifference of 19 mph (30 km/h) between the
cruise speed setting and the speed of the
vehicle in front. Above this, the system goes into
pause if the safety distance becomes too short.
Poor weather conditions (very heavy
rain, accumulation of snow in front of the
radar) may hinder the operation of the
system, with the display of the operating
fault message "SYSTEM INACTIVE:
Reduced visibility". The function remains
unavailable until the message disappears.
Since the radar detection range is relatively
narrow, it is possible that the system cannot
detect:
-

v
ehicles of reduced width, such as
motorcycles, for example, -

v
ehicles not running in the middle of the
lane,
When the adaptive cruise control is
automatically paused, it can only be
reactivated when safe conditions are
restored. The message "Activation
not possible, conditions unsuitable"
is displayed while reactivation is not
possible.
When the conditions allow, it is
recommended that the function be
reactivated by pressing button 2

or 3,

which will make the current speed of your
vehicle the new cruise speed setting,
rather than by pressing button 4 (on /
pause) which reactivates the cruise control
using the old cruise speed setting, which
may be very different from the current
speed of your vehicle.
Operating limits
- if the system does not slow the vehicle enough to continue to maintain a safe
distance, for example when descending
a
steep hill.
-
v

ehicles entering a

corner,
-

v
ehicles changing lane at the last moment.
The cruise control does not take account of:
-
s

tationary vehicles,
-

v
ehicles driving in the opposite direction.
Malfunction
In the event of a malfunction of the adaptive
c ruise control system, you are warned by an
audible signal and the display of the message
"Driving aid functions fault".
Have the system checked by a
CITROËN
dealer or a
qualified workshop.
Driving

157
When the cruise control is working, take
care if keeping pressed one of the cruise
control programmed speed change
buttons: this can lead to a very rapid
change in the speed of your vehicle.
Do not use adaptive cruise control on
slippery sur faces 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. Operation of the radar, located in the
front bumper, may be impaired by the
accumulation of dirt (dust, mud, etc.) or in
certain weather conditions (snow, frost,
e t c .) .
The message "SYSTEM INACTIVE:
Reduced visibility". is displayed to indicate
that the function is in standby.
Clean the front bumper regularly.
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.
Adaptive cruise control
until vehicle is stopped/
until 19
mph (30 km/h)
Function until vehicle is stopped : with
automatic gearbox
Function until 19
mph (30 km/h): with manual
gearbox This system provides the following
functions:
-

A
utomatically maintains the
vehicle at the speed set by the
driver.
-
A
utomatic adjustment of the
distance between your vehicle
and the one in front.
Cruise control remains active after
changing gear regardless of the gearbox
type.
It manages the acceleration and deceleration
of the vehicle by automatically acting on the
engine and the braking system. With an automatic gearbox, automatic
adjustment of the distance can cause your
vehicle to come to a complete stop.
For this purpose there is a radar installed in the
front bumper.
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Driving