display Citroen C4 PICASSO 2015 2.G Workshop Manual

160
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 fault
Exceeding the programmed
speed
If the cruise speed setting is exceeded, the displayed   speed   flashes.
The
  display   becomes   steady   again   once   the  
v

ehicle   returns   to   the   cruise   speed   setting.
Switching off
F Turn  thumb   wheel   1 to the "0" p osition. T
he   display   of   information   related   to   the  
c

ruise   control   disappears. When
  the   cruise   control   is   switched   on,  
b

e   careful   if   you   maintain   the   pressure  
o

n   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 n

ot use the cruise control on
slippery   roads   or   in   heavy   traffic.
On   a   steep   descent,   the   cruise   control  
w

ill 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  
C

ITROËN   may   inter fere   with   the  
o

peration   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.
Driving

161
active cruise control
This systems 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   ahead   to   be  
m

aintained.Principles of operation
Using a radar with a range of about 100 metres, located   at   the   front   of   the   vehicle,   this   system  
d

etects   a   vehicle   running   in   front   of   your  
v

ehicle.
It
  automatically   adapts   the   speed   of   the   vehicle  
t

o   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   cruise  
c

ontrol   is   automatically   deactivated.   The  
d

river   is   then   alerted   by   an   audible   signal,  
a

ccompanied   by   a   message.
If
  the   vehicle   in   front   accelerates   or   changes  
l

ane,   the   active   cruise   control   progressively  
a

ccelerates your vehicle to return to the
programmed
 s

peed.
If
  the   driver   operates   a   direction   indicator   to  
t

he   left   (left   hand   drive)   or   the   right   (right   hand  
d

rive),   to   overtake   a   slower   vehicle,   the   active  
c

ruise   control   allows   your   vehicle   to   temporarily  
a

pproach the vehicle in front to assist the
overtaking
 ma

noeuvre,
 t
hough
 n
ever
 e
xceeding
 t

he   programmed   speed.
Choice of the type of cruise control
If you want to use the standard cruise control, it is possible to deactivate the active cruise
control
  in   the   the   touch   screen   tablet.
F

I
n the "Driving assistance "
menu,
  press   this   button;   its  
i

ndicator   lamp   goes   off.
The
  standard   cruise   control   is   available.Refer to the previous section for the
details
  of   the   operation   of   the   standard  
c

ruise   control.
This
  is   confirmed   by   the   display   of  
t

his   symbol   in   the   control. You can return to the active
cruise
control
  at   any   time   by   pressing   this  
bu

tton
 ag
ain.
F
 
P
lace   the   cruise   control   thumb  
w

heel   at   "CRUISE".
4
driving

163
1. Cruise  control   mode   selection   wheel.
2. B utton   for   reducing   the   cruise   speed  
s

etting   or   for   using   the   current   speed   of   the  
v

ehicle   as   the   cruise   speed   setting.
3.
 B

utton   for   increasing   the   cruise   speed  
s

etting   or   for   using   the   current   speed   of   the  
v

ehicle   as   the   cruise   speed   setting.
4.
 B

utton   for   pausing   /   resuming   the   cruise  
c

ontrol.
5.
 B

utton   for   displaying   the   list   of   memorised  
s

peeds   and   for   adjusting   the   inter-vehicle  
t

ime.
For
  more   information   on   the   list   of   memorised  
s

peeds,   refer   to   "Memorising   speeds".
Steering mounted controls
Switching on
The active cruise   control   must   be   selected   in  t
he " Driving assistance "
  menu.
F
 
T
urn   the   thumb   wheel   1 to the "CRUISE"
position:
  cruise   control   mode   is   selected,  
b

ut   not   started   (Pause).
F

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

peed   of   your   vehicle   becomes   the   cruise  
s

peed   setting.
The
  cruise   control   is   activated   (ON).
By
  default,   the   inter-vehicle   time   is   set   at  
2 s

econds.
Other wise,
  the   last   speed   value   set   will   be   used  
f

or   operation   of   the   system.
Modification of the cruise control
speed only
Buttons 2 and 3
F By  successive   short   presses,   to   modify   by  s
teps   of   +   or   -    1   mph   (km/h),
F
 
b
y   a   maintained   press,   to   modify   in   steps  
of
  +   or   -   5   mph   (km/h).
As
  a   precaution,   it   is   recommended   that  
y

ou   select   a   speed   setting   close   to   the  
c

urrent   speed   of   your   vehicle.
Operation
4
Driving

164
In the event of the presence of a
vehicle  detected   by   the   radar,   if   the  
s

peed   selected   is   much   higher   than  
t

he   speed   of   that   vehicle,   the   system  
i

s   not   activated   and   the   alert   message  
"

Activation   not   possible,   conditions  
u

nsuitable"   is   displayed   until   driving  
c

onditions   are   safe   to   allow   activation   of  
t

he   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  
m

ode,   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 cruise control
speed and/or the inter-vehicle
time
Button 5 (MEM)
Press button 5 ,   the   six   memorised   speeds   and  t
he   inter-vehicle   time   setting   are   displayed   in  
t

he   touch   screen   tablet.
F
 
C
hoose   a   speed   setting:   it   is   displayed   in  
t

he   instrument   panel,
F

p
ress or the " +" or " -" button to choose
a
  new   inter-vehicle   time   setting   between  
2

.5 seconds   and   1   second.
This
  speed   value   remains   memorised,  
w

hatever   the   state   of   the   system.
The selection screen closes after a few
moments.
 

The
 
modifications
 
are
 
then
 
accepted.
If the active cruise control has not been
switched
  on,   pressing   button   5   (MEM)  
h

as   no   effect. It
  is   possible   to   exceed   the   speed   setting  
t

emporarily   by   depressing   the   accelerator  
ped

al.
Then
  simply   release   the   accelerator   pedal   to  
r

eturn   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.
driving

165
The table below describes the alerts and the messages displayed for the different driving situations.
Driving situations and associated alerts
The display of these alerts is not sequential.
S ymbol Display 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.
"SPEE
d

ad
J
USTE
d"D

etection   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.
4
Driving

166
When the active 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  
y

our   vehicle   the   new   cruise   speed   setting,   rather   than   by   pressing   button   4   (on/pause)   which   reactivates   the   cruise   control   using   the   old   cruise  
s

peed   setting,   which   may   be   very   different   from   the   current   speed   of   your   vehicle.
Symbol
Display in the
instrument panel Associated message
Comments
"SPEE
d
ad
J
USTE
d"
W
hen   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,  
c

hange   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

167
The active cruise control uses only engine braking   to   slow   the   vehicle.   Consequently   the  
v

ehicle   looses   speed   slowly,   as   when   releasing  
t

he   accelerator   pedal.
The
  system   is   paused   automatically:
-
 
i
f   the   vehicle   in   front   slows   down   to   much  
o

r   too   suddenly,   and   the   driver   does   not  
b

rake,
-
 
i
f   a   vehicle   comes   between   your   vehicle  
a

nd   the   vehicle   in   front,
-
 
i
f   the   system   does   not   slow   the   vehicle  
e

nough   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  
m

otorcycles,   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
 
a

head.
 
Above
 
this,
 
the
 
system
 
goes
 
into
 
pause
 
i

f
 
a
 
safe
 
distance
 
is
 
not
 
maintained.
Severe
 
weather
 
conditions
 
(very
 
heavy
 
r

ain,
 
accumulations
 
of
 
snow
 
in
 
front
 
o

f
 
the
 
radar)
 
can
 
inter fere
 
with
 
the
 
o

peration
 
of
 
the
 
system,
 
resulting
 
in
 
t

he
 
display
 
of
 
the
 
message
 
"SYSTEM
 
I

NACTIVE:
 
Visibility
 
reduced".
 
The
 
f

unction
 
remains
 
unavailable
 
until
 
the
 
m

essage
 d

isappears.
4
Driving

168
In the event of a fault with the active cruise
control,  you   are   alerted   by   an   audible   signal  
a

nd   display   of   the   message   message   "Driving  
a

id   functions   fault".
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 n

ot use the active cruise control on
slippery
  sur faces   or   in   heavy   traffic.
When
  descending   a   steep   hill,   the  
c

ruise   control   may   not   be   able   to  
p

revent   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.
The
  use   of   mats   not   approved   by  
C

ITROËN   may   inter fere   with   the  
o

peration   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.
Operating fault
The operation of the radar, located in the   front   bumper,   may   be   disturbed   by  
a

ccumulations   of   grime   (dust,   mud...)  
o

r   in   certain   weather   conditions   (snow,  
i

ce...).
The
  message   "SYSTEM   INACTIVE:  
V

isibility   reduced"   is   displayed   to   signal  
t

hat   the   system   has   been   put   into  
s

t a n dby.
Clean
  the   front   bumper   regularly.
driving

170
The change from one level of alert to   the   next   takes   place   if   the   driving  
c

onditions   do   not   change   (speed  
u

nchanged,   no   change   of   lane...)
Severe
  weather   conditions   (very   heavy  
r

ain,   accumulation   of   snow   in   front  
o

f   the   radar)   may   inter fere   with   the  
o

peration   of   the   system,   resulting   in  
t

he   display   of   the   message   "System
inactive: Reduced visibility ".
  The  
s

ystem   remains   unavailable   until   the  
m

essage
 d
isappears.
If
  the   speed   of   your   vehicle   is   too   high  
w

hen   approaching   another   vehicle,   the  
f

irst   level   of   alert   may   not   be   displayed:  
t

he   level   2   alert   may   be   displayed  
d

i r e c t l y.
On
  the   other   hand,   the   level   1   alert  
i

s   never   displayed   with   the   triggering  
t

hreshold   3   (close).
Alerts
According to the collision risk detected by the system   and   the   alert   threshold   chosen,   three  
l

evels   of   alert   can   be   triggered.
Level 1 :
  visual   alert   only   (orange)  
i

ndicating   that   the   vehicle   in   front   is  
v

ery   close.   The   message   "Vehicle
close "
  is   displayed.
Level 2 :
  visual   (red)   and   audible  
a

lerts   indicating   that   a   collision   is  
i

mminent.   The   message   "Brake! " is
displayed.
This
  level   of   alert   is   based   on   the   inter-vehicle  
t

ime   between   your   vehicle   and   the   one   in   front.
This
  level   of   alert   is   based   on   a   time   before  
c

ollision.   It   takes   account   of   the   vehicle  
d

ynamics,   the   speed   of   your   vehicle   and  
t

he   speed   of   the   vehicle   in   front,   the   driving  
c

onditions,   the   situation   with   your   vehicle  
(

cornering,   pedals   pressed,   etc.)   to   trigger   the  
a

lert   at   the   right   moment. Level 3
:   an   increase   in  t
he   tension   of   the   driver's  
s

eat   belt,   to   hold   the   driver  
a

gainst   the   backrest   of   their  
sea

t.
The
  3
rd level of alert is not triggered or i
s
 
interrupted   in   the   event   of   an   impact  
b

etween   the   two   vehicles.
The increase in the tension of the
driver's
  seat   belt   is   intended   only   as   an  
a

lert:
 
it
  does   not   in   any   circumstances  
a

ssure
  the   function   of   driver   safety.
The
 
triggering   of   this   alert   does   not   act  
o

n
 
the
 
safety   functions   provided   by   the  
s

eat
 
belts.
Driving

171
Operating fault
In the event of a fault, you are
alerted  by   the   display   of   the   Service  
w

arning   lamp,   accompanied   by   a  
m

essage.
Consult
  a   CITROËN   dealer   or   a  
q

ualified
 w
orkshop.
The
 
operation   of   the   radar,   located   in  
t

he
 
front   bumper,   may   be   disturbed   by  
a

ccumulations   of   grime   (dust,   mud...)  
o

r
 
in
 
certain   weather   conditions   (snow,  
i

ce...).
The
 
message   "SYSTEM   INACTIVE:  
V

isibility   reduced"   is   displayed   to   signal  
t

hat
 
the   system   has   been   put   into  
s

t a n dby.
Clean
  the   front   bumper   regularly.
4
Driving