2017 Citroen GRAND C4 PICASSO Owner's Manual

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When the dynamic 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 system 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 system
using the old cruise speed setting,
which may be very different from the
current speed of your vehicle. The dynamic 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,
-

i
f the system does not slow the vehicle
enough to continue to maintain a safe
distance, for example when descending a
steep hill.
Limits of operation
As the radar's field of view is quite narrow, it is
possible that the system may not detect:
The cruise control does not take account of:
-
s

tationary vehicles,
-

v
ehicles driving in the opposite direction.
-

v
ehicles of reduced width, such as
motorcycles,
-

v
ehicles not running in the middle of the
lane,
-

v
ehicles entering a corner,
-

v
ehicles changing lane at the last moment.
The regulation range is limited to a maximum
difference of 20 mph (30 km/h) between the
speed setting and the speed of the vehicle in
front. Above this, the system goes into pause if
a safe distance is not maintained.
Severe weather conditions (very heavy
rain, accumulations of snow in front
of the radar) can inter fere with the
operation of the system, resulting in
the display of the message "SYSTEM
INACTIVE: Visibility reduced". The
function remains unavailable until the
message disappears.
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In the event of a fault with the dynamic cruise
control, you are alerted 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.
When the cruise control is working, take
care if making a maintained press on
one of the cruise control programmed
speed modification buttons: this can
lead to a very quick change in the
speed of your vehicle.
Do not use the dynamic cruise control
on slippery sur faces or in heavy traffic.
When descending a steep hill, the
cruise control may not be able to
prevent the vehicle from exceeding the
programmed speed.
When ascending a steep hill or when
towing, it might not be possible to attain
or maintain the programmed speed.
Operating fault
The operation of the radar, located in
the front bumper, may be disturbed by
accumulations of dirt (dust, mud, etc.)
or in certain weather conditions (snow,
ice, etc.).
The message "SYSTEM INACTIVE:
Visibility reduced" is displayed to signal
that the system has been put into
st a n dby.
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 inter fere with the
operation of the cruise control.
To avoid any risk of jamming the pedals:
-

e

nsure that mats are secured
c o r r e c t l y,
-

n

ever fit one mat on top of another.
Driving

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Dynamic cruise control with Stop function
The dynamic cruise control is a driving
aid that cannot in any circumstances
replace the observation of speed limits
and safe distances, nor the need for
vigilance on the part of the driver.
It is recommended that you always keep
your feet close to the pedals.
The driver must be ready to take back
control of their vehicle at any time,
using the brake or accelerator pedal as
appropriate.
This system provides two functions:
-

a

utomatic regulation of the speed of the
vehicle to a value programmed by the
driver,
-

a

utomatic adjustment of the distance
between your vehicle and the vehicle
ahead, even to the point of stopping your
vehicle completely.
It manages the acceleration and deceleration
of the vehicle by automatically acting on the
engine and the braking system.
To do this, the system has a radar, located in
the front bumper.
Principles
This system detects a vehicle running in front of
your vehicle, travelling in the same direction.
It 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 running more slowly, the
system slows, or even stops your vehicle, using
engine braking and the braking system.
If the braking system is used to decelerate the
vehicle, the brake lamps come on.
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 dynamic cruise
control allows your vehicle to temporarily
approach the vehicle in front to assist the
overtaking manoeuvre, though never exceeding
the programmed speed.
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Steering mounted controls
1. Select cruise control mode.
2. Use the current speed as the speed
setting
/ Lower the speed setting.
3.
U

se the current speed as the speed
setting
/ Raise the speed setting.
4.
P

ause / Resume cruise control.
5.
U

se the speed suggested by the speed
limit recognition system.
6.
D

isplay and adjust the inter-vehicle
distance setting.
For more information on Speed limit
recognition , refer to the corresponding
section.
Displays in the instrument panel
7. Indication of the presence / absence of a target vehicle.
8.
I

ndication of cruise control activation /
deactivation.
9.
Spe

ed setting.
10.
I

ndication that vehicle is held stationary.
11.
S

peed suggested by the speed limit
recognition system.
If a vehicle is detected, the symbol 7
is filled
with the colour associated with the cruise
control mode. By default, the symbol 7 is
e m pt y.
In cruise control activated mode, the symbol
8
appears in green. By default, the symbol 8
appears in grey. 12 . I
nter-vehicle distance setting.
13. P osition of the vehicle detected by the radar.
This information is visible in the instrument
panel in "DRIVING" display mode.
Driving

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Switching on
The cruise control is switched on manually,
it requires a vehicle speed of between 18 and
112
mph (30 and 180 km/h).
An automatic gearbox must be in position D
or M . Other wise, the last setting made will be used
when switching on the system.
Switching off the ignition cancels any
programmed speed setting.
When the cruise control is operating,
Stop & Start is automatically
deactivated.
Pause
The dynamic cruise control can be paused
manually by:
-

a
ction by the driver:
●

o
n button 4 ,
●

o
n the brake pedal,
●

o
n the electric parking brake control,
●

w
hen changing from D to N with an
automatic gearbox.
-

o
r automatically, if operation of the ESC
system is triggered for reasons of safety.
Following braking of the vehicle
bringing it to a complete stop, the
system holds the vehicle stationary;
the cruise control is paused. The driver
should press the accelerator pedal to
move off, then reactivate the system
by exceeding 18
mph (30 km/h) and
pressing button
2, 3 or 4 .
If the driver takes no action following
this immobilisation, the electric parking
brake is applied automatically after a
few minutes.
F

W

ith the ignition on, turn the thumbwheel

1
to the " CRUISE " position: cruise control
mode is selected, but not started (grey).
F

V

ehicle moving, press one of the buttons

2
or 3 : the current speed of your vehicle
becomes the cruise speed setting.
The cruise control is activated (green).
By default, the inter-vehicle distance is set at
"Normal" (2 dashes).
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When the cruise control is paused,
it can only be reactivated when all of
the safety conditions are met. The
message "Activation not possible,
conditions unsuitable" is displayed while
reactivation is not possible.
Wait until the speed of the vehicle
is close to the speed setting before
reactivating the system - by pressing
button 2 or 3 - in order to set your
current speed as the new speed setting.
Modification of the speed setting
Modification from the speed limit
recognition system
F The speed to be memorised 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 is then displayed in the instrument
panel as the new speed setting.
As a precaution, it is recommended that
you select a cruise speed setting close
to the current speed of your vehicle, so
as to avoid any sudden acceleration or
deceleration of the vehicle.
For more information on Speed limit
recognition
, refer to the corresponding
section.
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 raise or lower the setting in
steps of + or - 1 mph (km/h),
F

B
y a maintained press on button 2 or 3 ,
to raise or lower the setting in steps of +
or
- 5 mph (km/h).
Take care: a prolonged press on
button
2 or 3 will cause a very quick
change in the speed of your vehicle.
Driving

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Modification of the inter-vehicle distance setting
Three predefined inter-vehicle distance settings
are offered:
-
"
Distant" (3 dashes),
-

"
Normal" (2 dashes),
-

"
Close" (1 dash). Engine running and cruise control selected
(grey), you can modify the inter-vehicle
distance setting:
F

p
ress button 6 to display the selection
screen for inter-vehicle distance,
F
p
ress button 6 repeatedly to cycle through
the predefined settings.
The selection screen closes after a
few seconds.
The modification is then taken into account.
This setting remains in memory, whatever the
state of the system and when the ignition is
switched off.
It is possible to exceed the speed setting
temporarily by depressing the accelerator
pedal.
The cruise control no longer manages the
braking system during this period.
Simply release the accelerator pedal to return
to the programmed speed.
If the programmed speed setting is exceeded,
the display of the speed setting disappears
and a message "Cruise control suspended"
is displayed until the accelerator pedal is
released.
Exceeding the programmed
setting
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Driving situations and associated alerts
To benefit from all of the information available in the instrument panel, you must first select the "DRIVING" display mode.
The following table describes the alerts and the messages displayed for the different driving situations.
The display of these alerts is not sequential.Indicator Display Associated messageComment
according to the inter-vehicle
distance selected "Cruise control paused" System paused.
No vehicle detected.
according to the inter-vehicle
distance selected "Cruise control paused" System paused.
A vehicle has been detected.
according to the inter-vehicle
distance selected "Cruise control on"
System activated.
No vehicle detected.
according to the inter-vehicle
distance selected "Cruise control on"
System activated.
A vehicle has been detected.
or "Cruise control suspended"
System activated.
The driver has temporarily taken control of the vehicle by
accelerating.
Driving