2016 Citroen C4 PICASSO Owner's Manual

159
C4-Picasso-II_en_Chap04_conduite_ed01-2016
Flashing of the dashes indicates a fault with the cruise   control.
Have
  it   checked   by   a   CITROËN   dealer   or   a  
q

ualified
 w
orkshop.
Operating faultWhen the cruise control is switched on,
be careful if you maintain the pressure
on  one   of   the   programmed   speed  
c

hanging   buttons:   this   may   result   in   a  
v

ery   rapid   change   in   the   speed   of   your  
v

ehicle.
Do not use the cruise control on
slippery
  roads   or   in   heavy   traffic.
On a steep descent, the cruise control
will not be able to prevent the vehicle
from
  exceeding   the   programmed   speed.
On
  steep   climbs   or   when   towing,   the  
p

rogrammed   speed   may   not   be   reached  
o

r   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  
ped

als:
-

e
nsure that the mat is secured
c o r r e c t l y,
-
 
n
ever   fit   one   mat   on   top   of   another.
4
Driving

160
C4-Picasso-II_en_Chap04_conduite_ed01-2016
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

161
C4-Picasso-II_en_Chap04_conduite_ed01-2016
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.
4
Driving

162
C4-Picasso-II_en_Chap04_conduite_ed01-2016
1. Select  cruise   control   mode.
2. U se the current speed of the vehicle as
the
  cruise   speed   setting   /   Lower   the   speed  
se

tting.
3.
U

se the current speed of the vehicle as
the
  cruise   speed   setting   /   Raise   the   speed  
se

tting.
4.
 P

ause   /   Resume   the   cruise   control.
5.
D

isplay the list of memorised speeds, or
 A

ccept   the   speed   suggested   by   the   speed  
l

imit   recognition   system.
6.
S

elect the inter-vehicle distance (" Close",
" Normal ", "Distant ")
For more information on Memorising speeds ,
refer
  to   the   corresponding   section.
For more information on Speed limit
recognition and its memorisation, refer to the
corresponding
 s

ection.
Steering mounted controls
Switching on
The active cruise control must be selected in
the Driving  menu.
F

T
urn the thumbwheel 1 to the " CRUISE"
position:
  cruise   control   mode   is   selected,  
b

ut   is   paused.
F

P
ress one of the buttons 2 or 3 :
  the   current  
s

peed 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 speed value set will be used
for
  operation   of   the   system.
Modification of the cruise control
speed
- using  buttons   2   or   3:
F b y successive short presses, to modify
by
  steps   of   +   or   -   1   mph   (km/h),
F

b
y a maintained press, to modify in steps
of
  +   or   -   5   mph   (km/h).
-
 
b
y   pressing   button   5:
F
 
t
he   six   memorised   speed   settings   are  
d

isplayed in the touch screen tablet,
F
 
c
hoose   a   speed   setting:   it   is   displayed   in  
t

he   instrument   panel.
The selection screen closes after a few
moments.
  The   modification   is   then   taken   into  
a

ccount.
-
 
b
y   pressing   button   5, if your vehicle has
speed
  limit   recognition:
F

t
he speed to memorise is displayed in
the instrument panel,
F
press button 5 again
  to   save   the   speed.
The
  speed   setting   is   then   displayed   in   the  
in

strument
 pan
el.
As a precaution, it is recommended that
you
 
select
 
a
 
speed
 
setting
 
close
 
to
 
the
 
c

urrent
 
speed
 
of
 
your
 
vehicle.
Operation
For more information on Speed limit
recognition and its memorisation, refer to the
corresponding
 s

ection.
Driving

163
C4-Picasso-II_en_Chap04_conduite_ed01-2016
In the event of the presence of a
vehicle detected by the radar, if the
speed  selected   is   much   higher   than  
t

he speed of that vehicle, the system
is
  not   activated   and   the   alert   message  
"

Activation not possible, conditions
unsuitable"
  is   displayed   until   driving  
c

onditions are safe to allow activation of
the
  system.
Exceeding the speed setting
The information is grouped together in the instrument pan el.
6.
 I

ndication   of   cruise   control   pause/resume.
7.
I

ndication of selection of cruise control
mode, or
 v

ehicle   speed   adjustment   phase.
8.
 C

ruise   speed   setting,   or
 a

djusted   speed   lower   than   the   cruise  
se

tting.
Displays in the instrument panel
Modification of the inter-vehicle
distance
Press button 6 to choose a new inter-vehicle
distance   setting   from   the   3   available   ("Close ",
" Normal ", "Distant ").
This value remains in memory, whatever the
state
  of   the   system.
It
  is   possible   to   exceed   the   speed   setting  
t

emporarily   by   depressing   the   accelerator  
ped

al.
Then simply release the accelerator pedal to
return
  to   the   programmed   speed.
If
  the   speed   setting   is   unintentionally   exceeded,  
d

escending   a   steep   hill   for   example,   the   speed  
s

etting   in   the   instrument   panel   flashes   as   a  
w

arning.
4
Driving

164
C4-Picasso-II_en_Chap04_conduite_ed01-2016
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

165
C4-Picasso-II_en_Chap04_conduite_ed01-2016
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.
4
Driving

166
C4-Picasso-II_en_Chap04_conduite_ed01-2016
In the event of a fault with the dynamic cruise
control,  you   are   alerted   by   an   audible   signal  
a

nd   the   display   of   the   message   "Driving   aid  
f

unctions
 f
ault".
Have
  the   system   checked   by   a   CITROËN  
d

ealer   or   a   qualified   workshop. When
  the   cruise   control   is   working,   take  
c

are   if   making   a   maintained   press   on  
o

ne   of   the   cruise   control   programmed  
s

peed   modification   buttons:   this   can  
l

ead   to   a   very   quick   change   in   the  
s

peed   of   your   vehicle.
Do not use the dynamic cruise control
on
  slippery   sur faces   or   in   heavy   traffic.
When
  descending   a   steep   hill,   the  
c

ruise control may not be able to
prevent
  the   vehicle   from   exceeding   the  
pro

grammed
 s
peed.
When
  ascending   a   steep   hill   or   when  
t

owing,   it   might   not   be   possible   to   attain  
o

r   maintain   the   programmed   speed.
Operating fault
The operation of the radar, located in
the front bumper, may be disturbed by
accumulations  of   grime   (dust,   mud...)  
o

r in certain weather conditions (snow,
ice...).
The
  message   "SYSTEM   INACTIVE:  
V

isibility   reduced"   is   displayed   to   signal  
t

hat the system has been put into
st a n dby.
Clean
  the   front   bumper   regularly.
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