2016 Citroen C4 PICASSO automatic

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Dynamic cruise control
System that allows, in addition to maintaining your vehicle's speed at a value that you have defined, the inter-vehicle time you have selected between your   vehicle   and   the   one   in   front   to   be   maintained.
Principles of operation
Using a radar with a range of about 100 metres, located at the front of the vehicle, this system
detects
  a   vehicle   running   in   front   of   your  
v

ehicle.
It automatically adapts the speed of the vehicle
to
  that   of   the   vehicle   in   front.
If
  the   vehicle   in   front   is   running   more   slowly,  
t

he   system   progressively   reduces   the   speed   of  
y

our   vehicle   using   just   engine   braking   (as   if   the  
d

river had pressed the " -"
  button).
If
  your   vehicle   is   too   close   to   or   approaching  
t

oo   quickly   the   vehicle   in   front,   the   dynamic  
c

ruise   control   is   automatically   deactivated.  
T

he   driver   is   then   alerted   by   an   audible   signal,  
a

ccompanied   by   a   message.
Choice of the type of cruise control
The choice between the "dynamic" and
"standard" cruise control is done in the Driving
menu.
F

I
n the Driving menu, select the " Driving
assistance " tab, then "Dynamic cruise
control" to activate or deactivate the
dynamic
  cruise   control.
For more information on the Cruise
control ,
  refer   to   the   corresponding  
s

ection.F

P
lace the cruise control
thumbwheel
  at   "CRUISE". If
  the   vehicle   in   front   accelerates   or   changes  l
ane,   the   dynamic   cruise   control   progressively  
a

ccelerates your vehicle to return to the
programmed
 s

peed.
If the driver operates a direction indicator
to
  the   left   (left   hand   drive)   or   the   right   (right  
h

and   drive),   to   overtake   a   slower   vehicle,   the  
d

ynamic cruise control allows your vehicle to
temporarily approach the vehicle in front to
assist
  the   overtaking   manoeuvre,   though   never  
e

xceeding   the   programmed   speed.
Driving

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The dynamic cruise control is switched on
manually:   it   requires   that   the   speed   of   the  
v

ehicle be between 25 and 90 mph (40 and
150 km/h),
  as   well   as   the   engagement   of:
-
 
f
ourth   gear   or   higher   with   a   manual  
g

earbox,
-
 
s
econd   gear   or   higher   with   an   automatic  
g

earbox   in   manual   mode,
-
position D
  with   an   automatic   gearbox.
The
  system   remains   active   after   changing   gear  
o

n   vehicles   with   a   manual   gearbox   and  
Stop
  &   Start.
General points
The dynamic cruise control can be paused
manually o r a utomatically:
-
 
b
y   pressing   button   4,
-
 
b
y   pressing   the   brake   pedal,
-

i
n the event of operation of the ESC, for
safety reasons,
-

i
n the event of operation of the electric
parking
  brake   control   lever,
-

w
hen an inter-vehicle time threshold is
reached
  (calculated   according   to   the  
r

elative speeds of your vehicle and the
vehicle in front and the inter-vehicle time
setting
 c

hosen),
-

w
hen the distance between your vehicle
and the one in front becomes too small,
-

w
hen the speed of the vehicle in front is too
low,
-

w
hen the speed of your vehicle becomes
too
  low.
The dynamic cruise control cannot in any
circumstances replace the observation
of
 sp

eed
 l

imits,
 n

or
 t

he
 n

eed
 fo

r
 v

igilance
 o

n
 
the
 
part
 
of
 
the
 
driver.
It
 
is
 
recommended
 
that
 
you
 
always
 
keep
 y

our
 
feet
 
close
 
to
 
the
 
pedals.
If
 
the
 
speed
 
setting
 
selected
 
is
 
above
 
9

0
 
mph
 
(150
 
km/h),
 
the
 
system
 
switches
 
t

o standard cruise control operation,
with
 
no
 
adjustment
 
of
 
the
 
inter-vehicle
 
s

afe
 
distance
 
(a
 
message
 
appears
 
in
 
t

he
 
instrument
 
panel). The
  inter-vehicle   time   setting   is   kept   in  
m

emory   on   switching   off   the   ignition.
The dynamic cruise control operates by
day
 
and
 
at
 
night,
 
in
 
fog
 
or
 
in
 
moderate
 
r

ainfall.
The system does not act on the braking s ystem,   but   works   only   with   engine   braking.
The
  regulation   range   is   limited:   there   will
 n

o   longer   be   any   adjustment   of   speed   if   the
 d

ifference   between   the   programmed   speed
 s

etting   and   the   speed   of   the   vehicle   in   front
 b

ecomes   too   high   (18   mph   (30   km/h)).
If the difference between the
programmed  speed   setting   and   the  
s

peed of the vehicle in front is too
great,
  the   speed   cannot   be   adjusted:  
t

he cruise control is automatically
deactivated.
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Driving

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SymbolDisplay in the
instrument panel Associated message
Comments
No
  vehicle   detected:  
t

he   system   operates   as   a   standard   cruise   control.
Detection
  of   a   vehicle,   at   the   limit   of   the   range   of   the   radar:  
t

he   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  
v

ehicle's   cruise   speed   setting.
The
  system   uses   engine   braking   to   slow   your   vehicle   and   then   hold   it   at   the   speed   of  
t

he   vehicle   in   front   so   as   to   maintain   the   programmed   inter-vehicle   time.
The
  regulation   range   is   limited   to   a   maximum   difference   of   20   mph   (30   km/h)  
b

etween   the   speed   setting   and   the   speed   of   the   vehicle   ahead.
"SPEED ADJUSTED" When
  the   adjusted   speed   reaches   the   control   limit   (speed   setting   -   20   mph  
(

30 km/h)),   the   adjusted   speed   flashes   together   with   the   speed   setting,   to   signal   that  
a

utomatic   deactivation   of   the   system   is   imminent.
"Cruise control
paused" If
  the   system   exceeds   the   limit   of   speed   adjustment   possible   by   the   system   and  
i

n the absence of any reaction by the driver (operation of the direction indicator,
change
  of   lane,   reduction   of   the   speed   of   the   vehicle),   the   system   is   automatically  
pa

used.
The
  display   of   the   deactivation   message   is   accompanied   by   an   audible   signal.
Driving situations and associated alerts
The table below describes the alerts and the messages displayed for the different driving situations.
T he   display   of   these   alerts   is   not   sequential.
Driving

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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  
no

t 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  
y

our vehicle the new cruise speed
setting,
  rather   than   by   pressing   button   4
(on/pause)
  which   reactivates   the   system  
u

sing   the   old   cruise   speed   setting,  
w

hich may be very different from the
current
  speed   of   your   vehicle. The
  dynamic   cruise   control   uses   only   engine  b
raking   to   slow   the   vehicle.   Consequently   the  
v

ehicle   loses   speed   slowly,   as   when   releasing  
t

he   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  
d

istance,   for   example   when   descending   a  
s

teep   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,
  for   example,
-
 
v
ehicles   not   running   in   the   middle   of   the  
lan

e,
-
 
v
ehicles   entering   a   corner,
-
 
v
ehicles   changing   lane   at   the   last   moment.
The
 
regulation
 
range
 
is
 
limited
 
to
 
a
 
maximum
 
d

ifference
 
of
 
20
 
mph
 
(30
 
km/h)
 
between
 
the
 
s

peed
 
setting
 
and
 
the
 
speed
 
of
 
the
 
vehicle
 
in
 
f

ront.
 
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
 
t

he
 
display
 
of
 
the
 
message
 
"SYSTEM
 
I

NACTIVE:
 
Visibility
 
reduced".
 
The
 
f

unction remains unavailable until the
message
 d

isappears.
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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
 
i
s  
r
ecommended   that  
y
ou   always  
k
eep  
y

our   feet   close   to   the   pedals.
The
  driver   must   be   ready   to   take   back  
c

ontrol of their vehicle at any time,
using
  the   brake   or   accelerator   pedal   as  
a

ppropriate.
This
 
system
 
assures
 
two
 
functions:
-
 
a

utomatic
 
regulation
 
of
 
the
 
speed
 
of
 
the
 v
ehicle
 
to
 
a
 
value
 
programmed
 
by
 
the
 d
river,
-
 
a

utomatic
 
adjustment
 
of
 
the
 
distance
 
b

etween your vehicle and the vehicle
ahead.
It
 
manages
 
the
 
acceleration
 
and
 
deceleration
 
o

f
 
the
 
vehicle
 
by
 
automatically
 
acting
 
on
 
the
 
e

ngine
 
and
 
the
 
braking
 
system.
To do this, the system has a radar, located in
the
 
middle
 
of
 
the
 
front
 
bumper,
 
with
 
a
 
maximum
 
r

ange
 
of
 
150
 
metres.
Principles
This system detects a vehicle running in front of y our   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  
s

ystem   slows,   or   even   stops   your   vehicle,   using  
e

ngine   braking   and   the   braking   system.
If
  the   braking   system   is   used   to   decelerate   the  
v

ehicle,   the   brake   lamps   come   on.
If
  the   vehicle   in   front   accelerates   or   changes  
l

ane,   the   cruise   control   progressively  
a

ccelerates your vehicle to return to the
programmed
 s

peed.
If the driver operates a direction indicator to
overtake
  a   slower   vehicle,   the   dynamic   cruise  
c

ontrol allows your vehicle to temporarily
approach the vehicle in front to assist the
overtaking
 ma

noeuvre,
 t
hough
 n
ever
 e
xceeding
 t

he   programmed   speed.
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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  
w

hen   switching   on   the   system.
Switching   off   the   ignition   cancels   any  
p

rogrammed   speed   setting.
When   the   cruise   control   is   operating,  S
top & Start is automatically
deactivated.
Pause
The dynamic cruise control can be paused
manually b y:
-
 
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  
b

ringing   it   to   a   complete   stop,   the  
s

ystem   holds   the   vehicle   stationary   ;  
t

he   cruise   control   is   paused.   The   driver  
s

hould press the accelerator pedal to
move off, then reactivate the system
by
  exceeding   18   mph   (30   km/h)   and  
p

ressing   button   2, 3 or 4 .
If
  the   driver   takes   no   action   following  
t

his   immobilisation,   the   electric   parking  
b

rake   is   applied   automatically   after   a  
f

ew
 m
inutes.
F
 
W

ith
 
the
 
ignition
 
on,
 
turn
 
the
 
thumbwheel 1
to the " CRUISE "
 
position:
 
cruise
 
control
 
m

ode
 
is
 
selected,
 
but
 
not
 
started
 
(grey).
F
 
V

ehicle
 
moving,
 
press
 
one
 
of
 
the
 
buttons 2
or 3 :
 
the
 
current
 
speed
 
of
 
your
 
vehicle
 
b

ecomes
 
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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However, with the "Blind spot monitoring system"   activated,   if   the   driver   starts   changing  
l

ane and another vehicle is detected in the
vehicle's
  blind   spot,   the   system   will   correct  
t

he   trajectory   of   the   vehicle   even   though   the  
d

irection   indicators   are   on.
For more information on the Blind spot
monitoring system ,
  refer   to   the   corresponding  
s

ection. If the system detects that the driver is
not
  holding   the   wheel   firmly   enough  
d

uring   an   automatic   correction   of  
t

rajectory,   it   interrupts   the   correction.  
A

n   alert   is   triggered   to   encourage  
t

he   driver   to   take   back   control   of   the  
v

ehicle.
Activation / Deactivation
Activation / deactivation of the system is done i
n the Driving  menu   of   the   touch   screen   tablet.
Select the " Driving assistance " tab then
" Help staying in lane ".
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
 
s

ystem
 
considers
 
that
 
any
 
change
 
of
 
trajectory
 
i

s
 
voluntary
 
and
 
no
 
correction
 
is
 
triggered
 
d

uring
 
this
 
period.
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Driving

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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.
T he   table   below   describes   the   alerts   and   messages   displayed   according   to   the   driving   situation.
The
  display   of   these   alerts   is   not   sequential.
State of
the systemWarning
lamp Associated display
and message
Comment
OFF System
 d

eactivated.
ON System
  active,   conditions   not   met:
-
 
s
peed   below   40   mph   (65   km/h),
-
 
n
o   lane   marking   recognised,
-
 
ES
C   deactivated   or   operation   triggered,
-
 
"
sporty"   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   of   the   lane   marking   detected.
ON "Take
  back   the   wheel".-
 
I
f,   during   correction,   the   system   detects   that   the   driver   has   not   held   the   wheel   for   a   few  
s

econds,   it   interrupts   the   correction   and   returns   control   to   the   driver.
-
 
D
uring   correction   of   the   trajectory,   the   system   determines   that   the   correction   will   not   be  
e

nough   and   a   solid   line   is   crossed:   the   driver   is   warned   that   they   must   complete   the   correction  
o

f   trajectory.
Driving