2019 CITROEN C4 parking sensors

.
C4-cactus_en_Chap00a_sommaire_ed01-2016
Driving recommendations 119
Starting-switching   off   the   engine  
1
21
Parking
  brake  
1
24
5 -speed
  manual   gearbox  
1
25
Gear shift indicator

1
26
ETG
  electronic   gearbox  
1
27
Hill
  start   assist  
1
31
Stop
  &   Start  
1
32
Speed
  limiter  
1
35
Cruise
  control  
1
38
Memorising
  speeds  
1
41
Parking
  sensors  
1
42
Reversing
  camera  
1
44
Park
  Assist  
1
45
Under-inflation
 d

etection
 1
50
Driving
Fuel tank 1 53
Misfuel   prevention   (Diesel)  
1
55
Snow
  chains  
1
57
Very
  cold   climate   screens  
1
58
Towing
  a   trailer  
1
59
Energy
  economy   mode  
1
60
Accessories


161
Changing
  a   wiper   blade  
1
63
Roof bars

1
64
Bonnet


167
Petrol
  engines  
1
68
Diesel
  engines  
1
69
Checking
  levels  
1
70
Checks
 1

73
AdBlue
® additive and SCR system 
(
BlueHDi   Diesel)  1 75
AIRBUMP
® protectors 1 82
Advice
 
on
 
care   and   maintenance  
1
83
Practical information
Temporary puncture 
r epair   kit  1 85
Spare
  wheel  
1
91
Changing
  a   bulb  
1
97
Changing
  a   fuse  
2
05
12 V battery

2
12
To w i n g
 2

16
Running
  out   of   fuel   (Diesel)  
2
18
In the event  o f  a  b reakdown
Petrol engines 2 19
Petrol   weights  
2
20
Diesel
  engines  
2
21
Diesel
  weights  
2
22
Dimensions
 2

23
Identification
 ma

rkings
 2
24
Technical data
Emergency or assistance 226
7-inch   touch   screen   tablet  
2
29
Audio and telematics
Alphabetical
 in
dex
Contents

4
C4-cactus_en_Chap00b_vue-ensemble_ed01-2016
Remote control key 40 - 43
-  l ocking   /   unlocking   the   vehicle
-
 
l
ocating   the   vehicle
-
a

nti-theft protection
-


battery
Exterior
Door mirrors 5 3
Lighting   control   stalk  
7
8 - 84
Guide-me-home   lighting  
8
4
Daytime   running   lamps  
8
3
Headlamp   beam   height   adjustment  
8
4
Cornering   lighting  
8
5
Changing
 bu
lbs
 1
97-201
-  
f
ront   lamps
-
 fo
glamps
-
d
irection indicator repeaters
Doors  
4
5 - 46
-
 
o
pening   /   closing
-
 em

ergency
 c
ontrol
Central
  locking  
4
4Glass
  panoramic   sunroof  
6
8
Roof   bars  
1
64-165
Accessories
1
61-162
Wiper   control   stalk  
8
6 - 89
Changing   a   wiper   blade  
8
9,   163
Boot

47
-  
o
pening   /   closing
-
 em
ergency
 r
elease
Park   Assist  
1
45 -149
Reversing   camera  
1
44
Parking   sensors  
1
42-143
Towbar  
1
20,   159
Towing
 21
6 -217
Changing
 bu
lbs
 2
02-203
-  r ear   lamps
-  3rd brake lamp
-
 n
umber   plate   lamps
Fuel
 
tank,   misfuel   prevention  
(

Diesel)
 15
3 -15 6
Running
  out   of   Diesel   fuel  
2
18
Electronic
 s

tability
 pro

gramme
 9

1
ESC: ABS, EBFD, EBA, ASR, DSC 91-93
Under-inflation d
etection 1 50-152
Tyre pressures
2

24
Temporary
 
puncture
 
repair
 
kit
 
1
85 -190
Changing
 
a
 
wheel
 
1
91-196
-

tools
-
 
r

emoving
 
/
 
refitting
Snow
 
chains
 
1
57
AIRBUMP
® protectors 1
82
Over view

31
C4-cactus_en_Chap01_Instruments-de-bord_ed01-2016
The functions with settings that can be adjusted are detailed in the following table.
Bu tton Corresponding function CommentsActivated Deactivated
Park Assist Activation
  /   Deactivation   of   the   function.
Stop & Star t Activation
  /   Deactivation   of   the   function.
Parking sensors Activation
  /   Deactivation   of   the   function.
Speed settings Memorisation
  of   speeds   for   use   with   the   speed  
l

imiter   or   cruise   control.
Under-inflation initialisation Reinitialisation of the under-inflation detection
system.
1
Instruments

120
C4-cactus_en_Chap06_conduite_ed01-2016
When towing
Distribution of loads
F Distribute the load in the trailer so that the heaviest   items   are   as   close   as   possible   to  
t

he   axle   and   the   nose   weight   approaches  
t

he   maximum   permitted   without  
e

xceeding it.
Air density decreases with altitude, thus
reducing
  engine   per formance.   Above  
1 0

00 metres,   the   maximum   towed   load   must  
b

e   reduced   by   10 %   for   every   1 000   metres   of  
al

titude.
For
  more   information   on   weights   (and   the  
t

owed loads which apply to your vehicle) refer
to
  the   corresponding   section.
Side wind
F Take  into   account   the   increased   sensitivity  t
o   side   wind.
Cooling
Towing a trailer on a slope increases the temperature   of   the   coolant.
As
  the   fan   is   electrically   controlled,   its   cooling  
c

apacity   is   not   dependent   on   the   engine   speed.
F
 
T
o   lower   the   engine   speed,   reduce   your  
s

peed.
The
  maximum   towed   load   on   a   long   incline  
d

epends   on   the   gradient   and   the   ambient  
t

emperature.
In
  all   cases,   keep   a   check   on   the   coolant  
t

emperature. F
 
I
f   the   warning   lamp   and   the  
S

TOP
 
warning   lamp   come   on,  
s

top the vehicle and switch off
the
  engine   as   soon   as   possible.
Braking
Towing a trailer increases the braking distance.
T o   avoid   overheating   of   the   brakes,   the   use   of  
e

ngine   braking   is   recommended.
Ty r e s
F Check  the   tyre   pressures   of   the   towing  v
ehicle   and   of   the   trailer,   observing   the  
re

commended
 p
ressures.
Lighting
F Check  the   electrical   lighting   and   signalling  o
n   the   trailer   and   the   hadlamp   beam   height  
o

f   your   vehicle.
For
  more   information   on   adjusting   the  
h

eadlamp   beam   height,   refer   to   the  
c

orresponding
 s
ection.
The
  rear   parking   sensors   will   be  
d

eactivated   automatically   if   a   genuine  
C

ITROËN   towbar   is   used.
Driving

142
C4-cactus_en_Chap06_conduite_ed01-2016
This system indicates the proximity of an obstacle   (pedestrian,   vehicle,   tree,   gate,   etc.)  
w

hich   comes   within   the   field   of   detection   of  
s

ensors   located   in   the   bumper.
Certain
  types   of   obstacle   (stake,   roadworks  
c

one,   etc.)   detected   initially   will   no   longer   be  
d

etected   at   the   end   of   the   manoeuvre,   if   they  
a

re   located   in   blind   spots   in   the   sensors'   field  
o

f   detection.
Parking sensors
This system  c annot  i n  a ny  c ircumstances  r eplace t
he   need   for   vigilance   on   the   part   of   the   driver.
The system is switched on by engaging reverse ge a r.
This
  is   confirmed   by   an   audible   signal.
The
  system   is   switched   off   when   you   come   out  
o

f   reverse   gear.
Audible assistance
The proximity information is given by an intermittent   audible   signal,   the   frequency   of   which i

ncreases   as   the   vehicle   approaches   the   obstacle.
The
  sound   emitted   by   the   speaker   (right   or   left)
 i

ndicates   the   side   on   which   the   obstacle   is   located.
When the distance between the vehicle and
the
  obstacle   becomes   less   than   approximately
 t

hirty   centimetres,   the   audible   signal   becomes
 c

ontinuous.
Rear parking
sensors
Visual assistance
This supplements the audible signal by d isplaying   bars   in   the   screen   or   the   instrument  
p

anel   which   move   progressively   nearer   to  
t

he   vehicle.   When   the   obstacle   is   near,   the  
"

Danger"   symbol   is   displayed.
Driving

143
C4-cactus_en_Chap06_conduite_ed01-2016
Front parking
sensors
The sound emitted by the speaker (front or rear) indicates whether the obstacle
is
  in   front   or   behind. The
  system   will   be   deactivated  a
utomatically   if   a   trailer   is   being  
t

owed or a bicycle carrier is fitted on
a towbar (vehicle fitted with a towbar
installed
  in   line   with   the   manufacturer's  
r

ecommendations).In bad weather or in winter, ensure
that the sensors are not covered with
mud,
  ice   or   snow.   When   reverse   gear   is  
e

ngaged,   an   audible   signal   (long   beep)  
i

ndicates   that   the   sensors   may   be   dirty.
Certain
  sound   sources   (motorcycle,  
l

orry,   pneumatic   drill,   etc.)   may   trigger  
t

he   audible   signals   of   the   parking  
s

ensor   system.
As
 
an
 
addition   to   the   rear   parking   sensors,   the  
f

ront
 
parking   sensors   are   triggered   when   an  
o

bstacle is detected in front and the speed of
the
 
vehicle   is   still   below   6   mph   (10   km/h).
The
 
front   parking   sensors   are   interrupted   if  
t

he
 
vehicle   stops   for   more   than   three   seconds  
i

n
 
for ward   gear,   if   no   further   obstacles   are  
d

etected or when the speed of the vehicle
exceeds   6   mph   (10   km/h).
Operating fault
In the event of a malfunction of t
he   system,   when   reverse   gear   is  
e

ngaged   the   symbol   for   the   button  
c

hanges   to   alert   mode   and   the  
w

arning   lamp   flashes   for   a   few  
m

oments   then   stays   on   continuously.
A
 
message   appears,   accompanied   by   an  
a

udible
 
signal   (short   beep).
Contact
 
a   CITROËN   dealer   or   a   qualified  
w

orkshop.
F

Sel

ect " Parking sensors " in the
" Driving assistance "
 
menu.
 
T

he
 
indicator
 
lamp
 
in
 
the
 
button
 
c

omes
 
on.
High pressure jet wash
When
 
washing   your   vehicle,   do   not   direct   the  
l

ance
 
within   30   cm   of   the   sensors.
Pressing
 
this
 
button
 
again
 
reactivates
 
the
 
s

ystem.
 
The
 
indicator
 
lamp
 
goes
 
off.
The
 
parking
 
sensors
 
can
 
be
 
deactivated
 
in
 
the
 t
ouch
 
screen
 
tablet.
The
 
parking
 
sensors
 
are
 
deactivated
 
w

hile
 
the
 
Park
 
Assist
 
system
 
is
 
m

easuring
 
a
 
space.
See
 
the
 
"Park
 
Assist"
 
section.
Deactivation / Activation of
the front and rear parking
sensors
6
Driving

144
C4-cactus_en_Chap06_conduite_ed01-2016
Reversing camera
Opening the tailgate causes the display t
o   disappear.
The
 r

eversing
 c

amera
 i

s
 a

ctivated
 a

utomatically
 w

hen
 r

everse
 g

ear
 is enga

ged.
The
 
image
 
is
 
displayed
 
in
 
the
 
touch
 
screen
 
t

ablet. The
 
blue
 
lines
 
represent
 
the
 
general
 
direction
 
o

f
 
the
 
vehicle
 
(the
 
gap
 
represents
 
the
 
width
 
of
 
y

our
 
vehicle
 
except
 
for
 
the
 
door
 
mirrors).
The red lines represent a distance of about
30
 
cm
 
beyond
 
the
 
edge
 
of
 
your
 
vehicle's
 
rear
 b
u m p e r.
The
 
green
 
lines
 
represent
 
distances
 
of
 
a

bout 1 and
 
2
 
metres
 
beyond
 
the
 
edge
 
of
 
your
 
v

ehicle's
 
rear
 
bumper.
The
 
turquoise
 
blue
 
curves
 
represent
 
the
 
m

aximum
 
turning
 
circle. Clean
  the   reversing   camera   regularly   using   a  
s

oft,
 
dry   cloth.
The
 
reversing
 
camera
 
cannot
 
in
 
any
 
c

ircumstances
 
replace
 
the
 
need
 
for
 
v

igilance
 
on
 
the
 
part
 
of
 
of
 
the
 
driver. It
  is   normal   to   see   part   of   the   number  
p

late   displayed   at   the   bottom   of  
t

he screen.
The
 
reversing
 
camera
 
function
 
may
 
be
 s
upplemented
 
with
 
parking
 
sensors.
High pressure jet washing
When
  washing   your   vehicle,   do   not  
d

irect   the   lance   within   30   cm   of   the  
c

amera   lens.
Driving

145
C4-cactus_en_Chap06_conduite_ed01-2016
Park Assist
This system provides active assistance with parking, detecting a parking space then controlling the steering to park in the space.
I t   controls   the   steering   while   the   driver   manages   the   accelerator,   brakes,   gears   and   clutch   (manual   gearbox).   During   phases   of   entry   into   and   exit   from  
a

  parking   space,   the   system   provides   visual   and   audible   information   to   the   driver   in   order   to   make   the   manoeuvre   safe.   It   may   be   necessary   to   move  
f

or wards   and   backwards   more   than   once.
The
  Park   Assist   system   cannot   in   any  
c

ircumstances   replace   the   need   for  
v

igilance   on   the   part   of   the   driver.
The
  driver   must   remain   in   control   of  
t

heir   vehicle   ensuring   that   the   space  
r

emains   clear   during   the   manoeuvre.
In
  some   circumstances,   the   sensors  
m

ay   not   detect   small   obstacles   located  
i

n   their   blind   spots. Changing
  tyre   sizes   (out-size   tyres,  
w

inter   tyres,   ...)   can   inter fere   with  
t

he   correct   operation   of   the   parking  
a

ssistance   system.
During
  a   manoeuvre   the   steering   wheel  
t

urns   quickly:   do   not   hold   the   steering  
w

heel, do not place your hand between
the
  spokes   of   the   steering   wheel   and  
t

ake   care   with   loose   and   bulky   clothing,  
s

carves,   handbags...   There   is   a   risk   of  
in

jury. For
  entry   into   a   parking   space   (parallel  
p

arking)   the   system   does   not   detect  
s

paces   which   are   clearly   much   smaller  
o

r   larger   than   the   size   of   the   vehicle.
This
  "parking   assistance"   system  
i

s   activated   automatically   during  
m

anoeuvres;   it   is   therefore   possible  
t

hat   a   symbol   comes   on   in   the   screen,  
a

ccompanied   by   an   audible   signal,  
w

ithout   affecting   the   manoeuvre.The
  selection   of   the   type   of   manoeuvre  
(

entering   or   exiting   a   parallel   parking  
s

pace)   prevents   a   change   to   STOP  
m

ode   of   Stop   &   Start.
In
  STOP   mode,   this   selection   restarts  
t

he
 eng
ine.
The
  driver   can   take   control   at   any   time   by   gripping   the   steering   wheel.
The
 
s
ystem  
p
rovides  
a
ssistance  
i
n  
e
ntering  
a
nd  
e

xiting
 a par
king
 spa
ce
 w
hen
 par
allel
 par
king.
6
Driving