sensor CITROEN C4 CACTUS 2023 User Guide

76
Driving
Stop & Start
The Stop & Start function puts the engine temporarily into standby - STOP mode - during
phases when the vehicle is stopped (red lights,
queues, etc.). The engine restarts automatically
- START mode - as soon as the driver wishes to
move off again.
Primarily designed for urban use, the function
is intended to reduce fuel consumption and
exhaust emissions as well as the noise level
when stationary.
The function does not affect the functionalities of
the vehicle, in particular the braking.
Deactivation/Reactivation
The function is activated by default when the
ignition is switched on.
It is set via the Driving / Vehicle touch
screen menu.
A message in the instrument panel confirms the
change of status.
When the function is deactivated, if the engine
was in standby, it restarts immediately.
Associated indicator lamp
Function activated.
Opening the bonnet
Before doing anything under the bonnet,
deactivate the Stop & Start system to avoid
The system triggers an alert as soon as it
detects a drop in the inflation pressure of one or
more tyres.
Under-inflation detection does not
replace the need for vigilance on the part
of the driver.
This system does not avoid the need to
regularly check the tyre pressures (including
the spare wheel) as well as before a long
journey.
Driving with under-inflated tyres, particularly
in adverse conditions (heavy load, high
speed, long journey):
–

worsens road-holding.
–


lengthens braking distances.
–


causes premature wear of the tyres.
–


increases fuel consumption.
The inflation pressures defined for the vehicle can be found on the tyre pressure
label.
For more information on the Identification
markings, refer to the corresponding section.
Checking tyre pressures
This check should be done when the
tyres are "cold" (vehicle stopped for 1 hour or
after a journey of less than 6 miles (10
km) at
moderate speeds).
Otherwise, add 0.3 bar to the pressures
shown on the label.
Snow chains
The system does not have to be
reinitialised after fitting or removing snow
chains.
Spare wheel
The steel spare wheel does not have an
under-inflation detection sensor.
Under-inflation alert
This is signalled by the fixed illumination of this warning lamp, accompanied by an
audible signal and the display of a message.
►

Reduce speed immediately
, avoid excessive
steering movements and avoid sudden braking.
►

Stop the vehicle as soon as it is safe to do
so.
The loss of pressure detected does not always cause visible bulging of the tyre.
Do not rely on just a visual check.
►

Using a compressor
, such as the one in
the temporary puncture repair kit, check the
pressures of the four tyres when cold.
►

If it is not possible to make this check
immediately

, drive carefully at reduced speed.
►

In the event of a puncture, use the
temporary puncture repair kit or the spare wheel
(depending on equipment).
The alert is kept active until the system is reinitialised.
Reinitialisation
Reinitialise the system after adjusting one or
more tyre pressures and after changing one or
more wheels.


Before reinitialising the system, make
sure that the pressures of the four tyres
are correct for the conditions of use of the
vehicle and conform to the values written on
the tyre pressure label.
Check the pressures of the four tyres before
performing the reinitialisation.
The system does not advise if a pressure is
incorrect at the time of reinitialisation.
With the vehicle stationary, the system is
reinitialised via the Driving /
V
ehicle touch screen menu.
Malfunction
These warning lamps come on in the event of a malfunction.
In this case, the tyre under-inflation monitoring
function is no longer performed.
Have the system checked by a CITROËN dealer
or a qualified workshop.

79
Driving
6certain types of paint could interfere with the
operation of the radar.


Driving aids camera
This camera and its associated functions
may be impaired or not work if the windscreen
area in front of the camera is dirty, misty,
frosty, covered with snow, damaged or
masked by a sticker.
On versions with camera alone, this message
indicates to you that the camera is obstructed:
"Driving aids camera: visibility limited, see
user guide".
In humid and cold weather, demist the
windscreen regularly.
Poor visibility (inadequate street lighting,
heavy rain, thick fog, snowfall), dazzle
(headlamps of an oncoming vehicle, low sun,
reflections on a damp road, leaving a tunnel,
alternating shade and light) can also impair
detection performance.
In the event of a windscreen replacement,
contact a CITROËN dealer or a qualified
workshop to recalibrate the camera;
otherwise, the operation of the associated
driving aids may be disrupted.
Other cameras
The images from the camera(s)
displayed on the touch screen or on the
instrument panel may be distorted by the
relief.
In the presence of areas in shade, or in
conditions of bright sunlight or inadequate
lighting, the image may be darkened and with
lower contrast.
Obstacles may appear further away than they
actually are.
Sensors
The operation of the sensors as well as
the associated functions may be disturbed
by sound interference such as that emitted
by noisy vehicles and machinery (e.g. lorries,
pneumatic drills), by the accumulation of
snow or dead leaves on the road or in the
event of damaged bumpers and mirrors.
When reverse gear is engaged, an audible
signal (long beep) indicates that the sensors
may be dirty.
A front or rear impact to the vehicle can
upset the sensors’ settings, which is not
always detected by the system: distance
measurements may be distorted.
The sensors do not systematically detect
obstacles that are too low (pavements, studs)
or too thin (trees, posts, wire fences).
Certain obstacles located in the sensors’ blind
spots may not be detected or may no longer
be detected during the manoeuvre.
Certain materials (fabrics) absorb sound
waves: pedestrians may not be detected.
Maintenance
Clean the bumpers and door mirrors and
the field of vision of the cameras regularly.
When washing your vehicle at high pressure,
direct the spray from at least 30
cm away
from the radar, sensors and cameras.
Mats
The use of mats not approved by
CITROËN may interfere with the operation of
the speed limiter or cruise control.
To avoid any risk of jamming the pedals:
►

ensure that the mat is secured correctly
,
►

never fit one mat on top of another
.
Units of speed
Ensure that the units of speed displayed
on the instrument panel (mph or km/h) are
those for the country you are driving in.
If this is not the case, when the vehicle is
stationary, set the display to the required
units of speed so that it complies with what is
authorised locally.
In case of doubt, contact a CITROËN dealer
or a qualified workshop.

89
Driving
6The following situations may interfere with the operation of the system or
prevent it from working:
–

lane markings absent, worn, hidden (snow
,
mud) or multiple (roadworks);
–

close to the vehicle ahead (lane markings
not detected);
–


roads that are narrow
, winding, etc.
Lane Departure Warning
System
Refer to the General recommendations on the
use of driving and manoeuvring aids .
This system, using a camera which recognises
solid or broken lines, detects the involuntary
crossing of longitudinal traffic lane markings on
the ground.
If the driver's attention drops and the speed
is higher than 37 mph (60
km/h), the system
triggers a warning if there is an unexpected
change of direction.
This system is particularly useful on motorways
and main roads.


Activation / Deactivation
It is set via the Driving / Vehicle touch
screen menu.
Detection
If an unexpected change of direction is
detected, this warning lamp flashes in the
instrument panel accompanied by an audible
signal.
No warning is transmitted while the direction
indicator is activated and for approximately 20
seconds after the direction indicator is switched
off.
Malfunction
In the event of a malfunction, these
warning lamps come on on the
instrument panel, accompanied by the display of
a message and an audible signal.
Contact a CITROËN dealer or a qualified
workshop.
Blind Spot Monitoring
System
Refer to the General recommendations on the
use of driving and manoeuvring aids .


This system includes sensors, placed on the
sides of the bumpers, and warns the driver of
the potentially dangerous presence of another
vehicle (car, truck, motorcycle) in the blind spot
areas of their vehicle (areas hidden
from the
driver's field of vision).


The warning is given by a fixed warning lamp
that appears in the door mirror on the side in
question:
–

immediately
, when being overtaken;
–

after a delay of about one second, when
overtaking a vehicle slowly

.
Activation / Deactivation
It is set via the Driving / Vehicle touch
screen menu.

90
Driving
or other objects; they may hamper correct
operation of the system.
Parking sensors
Refer to the General recommendations on the
use of driving and manoeuvring aids.


Using sensors located in the bumper, this
system signals the proximity of obstacles
(e.g. pedestrian, vehicle, tree, barrier) present in
their field of detection.
Rear parking sensors
The system is switched on by engaging reverse
gear, which is confirmed by an audible signal.
The system is switched off when disengaging
reverse gear.
The state of the system stays in the memory
when switching off the ignition.
The system is automatically deactivated
when towing with a towing device
approved by CITROËN.
Conditions for operation
– All vehicles are moving in the same direction
and in adjacent lanes.
–

The speed of your vehicle must be between 7
and 87 mph (12 and 140

km/h).
–

When overtaking a vehicle, the speed
difference is less than 6

mph (10 km/h).
–

When overtaken by a vehicle, the speed
difference is less than 16

mph (25 km/h).
–

T
raffic is flowing normally.
–

Overtaking a vehicle over a certain period of
time and the vehicle being overtaken remains in
the blind spot.
–


Y
ou are driving on a straight or slightly curved
road.
–

Y
our vehicle is not pulling a trailer, a caravan,
etc.
Operating limits



No alert is triggered in the following conditions:
– In the presence of non-moving objects (parked
vehicles, barriers, street lamps, road signs, etc.).
–

Oncoming traffic.
–


Driving on a winding road or a sharp corner
.
–

When overtaking or being overtaken by a very
long vehicle (lorry

, bus, etc.) that is detected
in the rear blind spot but is also present in the
driver’s front field of vision.
–

When overtaking quickly
.
–

In very heavy traffic: vehicles detected in
front and behind are confused with a lorry or a
stationary object.
Malfunction
In the event of a malfunction, you are warned by
the display of a message.
Contact a CITROËN dealer or a qualified
workshop to have the system checked.
The system may suffer temporary interference in certain weather conditions
(rain, hail, etc.).
In particular, driving on a wet surface or
moving from a dry area to a wet area can
cause false alerts (for example, the presence
of a fog of water droplets in the blind spot
angle is interpreted as a vehicle).
In bad or wintry weather, ensure that the
sensors are not covered by mud, ice or snow.
Take care not to cover the warning zone in
the door mirrors or the detection zones on the
front and rear bumpers with adhesive labels

91
Driving
6or other objects; they may hamper correct
operation of the system.
Parking sensors
Refer to the General recommendations on the
use of driving and manoeuvring aids.


Using sensors located in the bumper, this
system signals the proximity of obstacles
(e.g.
pedestrian, vehicle, tree, barrier) present in
their field of detection.
Rear parking sensors
The system is switched on by engaging reverse
gear, which is confirmed by an audible signal.
The system is switched off when disengaging
reverse gear.
Audible assistance

The system signals the presence of obstacles
which are both within the sensors’ detection zone
and in the vehicle path defined by the direction of
the steering wheel.


Depending on version, in the example shown,
only the obstacles present in the shaded area
will be signalled by the audible assistance.
The proximity information is given by an
intermittent audible signal, the frequency of
which increases as the vehicle approaches the
obstacle.
When the distance between the vehicle and
the obstacle becomes less than about thirty
centimetres, the audible signal becomes
continuous.
The sound emitted by the speaker (right or
left) indicates the side on which the obstacle is
located.
Adjusting the audible signalWith CITROËN Connect Radio or
CITROËN Connect Nav, pressing
this button opens the window for adjusting the
volume of the audible signal.
Visual assistance

It supplements the audible assistance, without
taking account of the vehicle's trajectory, by
displaying bars on the screen that represent the
distance between the obstacle and the vehicle
(white: more distant obstacles, orange: close
obstacles, red: very close obstacles).
When the obstacle is very close, the "Danger"
symbol is displayed on the screen.
Front parking sensors
In addition to the rear parking sensors, the front
parking sensors are triggered when an obstacle
is detected in front and the speed of the vehicle
is still below 6 mph (10
km/h).

92
Driving
The front parking sensors are interrupted if the
vehicle stops for more than three seconds in
forward gear, if an obstacle is no longer detected
or when the speed of the vehicle exceeds 6 mph
(10
km/h).
The sound emitted by the speaker (front or rear) locates the obstacle in relation to
the vehicle, in the vehicle trajectory, in front or
behind.
Deactivation / Activation
It is set via the Driving / Vehicle touch
screen menu.
The state of the system stays in the memory
when the ignition is switched off.
The rear parking sensors system will be deactivated automatically if a trailer or
bicycle carrier is connected to a towing device
installed in accordance with the
manufacturer's recommendations.
Operating limits
If the boot is heavily loaded, the vehicle may tilt,
affecting distance measurements.
Malfunction
In the event of a malfunction when
changing into reverse, this warning lamp
comes on on the instrument panel, accompanied
by an onscreen message and an audible signal
(short beep).
Contact a CITROËN dealer or a qualified
workshop to have the system checked.
Reversing Camera
Refer to the General recommendations on the
use of driving and manoeuvring aids .


The reversing camera is automatically activated
when reverse gear is engaged.
The image is displayed on the touch screen.
The reversing camera function may be
supplemented with parking sensors.


The representation with overlaid lines helps with
the manoeuvre.
They are represented as lines marked "on the ground" and do not indicate the
position of the vehicle in relation to tall
obstacles (e.g. other vehicles).
Some distortion of the image is normal.
It is normal to have a part of the number plate
showing at the bottom of the screen.
The blue lines 1 represent the general direction
of the vehicle (the gap represents the width of
your vehicle without the mirrors).
The red line 2 represents a distance of about
30

cm beyond the edge of your vehicle's rear
bumper.
The green lines 3 represent distances of about 1
and 2 metres beyond the edge of your vehicle's
rear bumper.
The turquoise blue curves 4 represent the
maximum turning circle.
Opening the tailgate causes the display
to disappear.

106
Practical information
For the care of the stickers in the rear
door windows (quarter panels), we
recommend the following:
– Use a wide jet at a temperature of between
25°C and 40°C.
– Where possible, direct the jet at right
angles to the stickers."Top up AdBlue: Starting impossible" – it is
essential to add at least 5 litres.
After refilling
► Refit the blue cap to the tank filler and turn it
clockwise, as far as it will go.
►

Close the fuel filler flap.
Do not dispose of AdBlue® bottles or
containers in the household waste.
Place them in a container reserved for this
purpose or take them back to where you
purchased them.
Advice on care and maintenance
General recommendations
Observe the following recommendations to avoid
damaging your vehicle.
Exterior
Never use a high-pressure jet wash in
the engine compartment, due to the risk
of damaging electrical components.
Do not wash the vehicle in strong sunshine or
extremely cold conditions.
When washing the vehicle at an
automatic roller-brush car wash, be sure
to lock the doors and, depending on version,
remove the electronic key.
When using a pressure washer, hold the
lance at least 30 cm from the vehicle
(particularly when cleaning areas containing
chipped paint, sensors or seals).
Promptly clean up any stains containing
chemicals liable to damage the vehicle's paint
(including tree resin, bird droppings, insect
secretions, pollen and tar).
If justified by the environment, clean the
vehicle more frequently to remove salty
deposits (in coastal areas), soot (in industrial
estates) and mud (in wet or cold areas).
These substances can be highly corrosive.
Contact a CITROËN dealer or a qualified
workshop if you require advice on removing
stubborn stains requiring special products
(such as tar or insect removers).
Preferably, have paint touch-ups performed
by a CITROËN dealer or a qualified
workshop.
Interior
When washing the vehicle, never use a
water hose or high-pressure washer to
clean the interior.
Liquids carried in cups or other open
containers can spill, presenting a risk of
damage if they come into contact with the
controls in the dashboard and centre console.
Take care!
Bodywork
High-gloss paint
Do not use abrasive products or
solvents, petrol or oil to clean the
bodywork.
Never use an abrasive sponge to clean
stubborn stains. Risk of scratching the
paintwork!
Do not apply polish in strong sunshine, or to
plastic or rubber parts.
Use a soft sponge and soapy water or a
pH neutral product.
Gently wipe the bodywork with a clean
microfibre cloth.
Apply polish with the vehicle clean and dry.
Comply with the instructions for use stated on
the product.
Care of the stickers
These styling stickers are treated to give good
resistance to ageing and tearing.
They have been designed to allow you to
customise your vehicle's bodywork.
When washing your vehicle, keep the high-
pressure lance tip at least 30 cm away from the
stickers.

171
Alphabetical index
A
ABS 52
Accessories
49
Active Safety Brake

85–87
AdBlue®

12, 104
AdBlue® tank

105
Additive, Diesel

102–103
Adjusting headlamps

44
Adjusting head restraints

28
Adjusting seat

27
Adjusting the air distribution

33–34
Adjusting the air flow

33–34
Adjusting the date

143, 167
Adjusting the height of the steering wheel

29
Adjusting the lumbar support

27
Adjusting the seat angle

27
Adjusting the temperature

33–34
Adjusting the time

143, 167
Advice on care and maintenance

37, 106–107
Advice on driving

6, 67
Airbags

55, 57, 59
Airbags, curtain

56–57
Airbags, front

56–57, 60
Airbags, lateral

56–57
Air conditioning

32, 34
Air conditioning, automatic

33–34
Air conditioning, manual

32, 34
Air intake

33–34
Air vents

31
Alarm

24
Anti-lock braking system (ABS)

52
Antitheft / Immobiliser 18
Apple CarPlay connection
139, 157
Armrest, front

37, 39
Assistance call

50
Assistance, emergency braking

52, 87
Audible warning

50
Audio streaming (Bluetooth)

138, 161–162
B
Battery 97–98, 121–122
Battery, 12 V
102, 122–124
Battery, charging

122–123
Battery, remote control

21–22
Blanking screen (snow shield)

96
Blind spot sensors

89
BlueHDi

12, 102, 108
Bluetooth (hands-free)

140–141, 163
Bluetooth (telephone)

140–141, 163–164
Bodywork

106
Bonnet

99–100
Boot

23–24, 37, 40
Brake discs

103
Brake lamps

11 7
Brakes

103
Braking assistance system

52
Braking, automatic emergency

85–87
Brightness

142
Bulbs

11 5
Bulbs (changing)

115–117
C
Cable, audio 161
Cable, Jack
161
Capacity, fuel tank

94–95
Cap, fuel filler

94–95
Care of the bodywork

106
CD

138, 161
CD, MP3

138, 161
Central locking

18–20
Changing a bulb

115–118
Changing a fuse

119–121
Changing a wheel

109, 111–112
Changing a wiper blade

46–47
Changing the remote control battery

22
Checking the engine oil level

11–12
Checking the levels

100–102
Checking tyre pressures
(using the kit)

108–109, 111
Checks

100, 102–103
Checks, routine

102–103
Child lock

65–66
Children

54, 60, 63–64, 65
Children (safety)

65–66
Child seats

54, 57–60
Child seats, conventional

60
Child seats, i-Size

65
Child seats, ISOFIX

62–63, 65
Cleaning (advice)

106
Closing the boot

23–24
Closing the doors

19–20
Coat hanger

39

174
Alphabetical index
M
Maintenance (advice) 106
Maintenance, routine
79, 102
Manoeuvring aids (recommendations)

78
Map reading lamps

36
Markings, identification

130
Mat

37, 39, 79
Menu

139
Menus (audio)

134–135, 148–149
Messages

165
Messages, quick

165
Mirror, rear view

30
Mirrors, door

29, 89
Misfuel prevention

95
Mountings, ISOFIX

62
N
Number plate lamps 11 8
O
Obstacle detection 91
Oil change
101
Oil consumption

101
OIl, engine

101
On-board tools

109
Opening the bonnet

99
Opening the boot

19, 23–24
Opening the doors 19, 23
P
Pads, brake 103
Paint
106, 130
Paint colour code

130
Panoramic glass sunroof

37
Parcel shelf, rear

40–41
Parking brake

72, 103
Parking sensors, audible and visual

91
Parking sensors, front

91
Parking sensors, rear

91
Plates, identification

130
Player, Apple®

138, 162
Player, MP3 CD

161
Player, USB

137, 161
Port, USB

37–38, 137, 161
Pressures, tyres

103, 111, 131
Pre-tensioning seat belts

54
Priming the fuel system

108
Profiles

142, 166
Protecting children

56–60, 63–64, 65
Puncture

108–109, 111
R
Radar (warnings) 78
Radio
135–136, 138, 159–161
Radio, digital (Digital Audio
Broadcasting - DAB)
137, 161
Range, AdBlue

12, 102
RDS

136, 160
Rear screen, demisting

36
Recharging the battery

122–123
Recirculation, air

33–34
Recovery

125
Reduction of electrical load

97
Regeneration of the particle filter

103
Reinitialisation of the under-inflation
detection system

76
Reinitialising the remote control

22
Reminder, key in ignition

69
Reminder, lighting on

43
Remote control

17–21
Removing a wheel

113–114
Removing the mat

39
Replacing bulbs

115–117
Replacing fuses

119–120
Replacing the air filter

103
Replacing the oil filter

103
Replacing the passenger compartment
filter

102
Reservoir, screenwash

102
Resetting the trip recorder

15–16
Reversing camera

79, 92
Reversing lamp

11 7
Reversing lamps

11 7
Roof bars

98–99
Running out of fuel (Diesel)

108

175
Alphabetical index
S
Safety, children 56–60, 63–64, 65
Saturation of the particle filter (Diesel)
103
Screen, cold climate

96
Screen menu map

139
Screenwash, front

46
Screenwash, rear

46
SCR (Selective Catalytic Reduction)

13, 104
Seat angle

27
Seat belts

53–54, 60
Seat, rear bench

30–31
Seats, front

27
Seats, heated

28
Seats, rear

30–31, 58
Sensors (warnings)

79
Serial number, vehicle

130
Service indicator

11
Servicing

11, 102
Settings, equipment

13–14
Settings, system

142, 166
Sidelamps

42–44, 116–117
Snow chains

76, 96
Socket, 12 V accessory

37–38
Socket, auxiliary

138, 161
Socket, Jack

161
Speed limiter

81–83
Speed limit recognition

80
Speedometer

79
Stability control (ESC)

52
Starting a Diesel engine

94
Starting the engine

68
Starting the vehicle 68–70
Starting using another battery
71, 122
Station, radio

135–136, 159–160
Stay, bonnet

99–100
Steering mounted controls, audio

133, 147
Steering wheel, adjustment

29
Stopping the vehicle

68–70
Stop & Start

15, 32, 35, 77–78, 94, 99, 102, 124
Storage

38–39
Sunshine sensor

32
Sun visor

37
Switching off the engine

68
Synchronising the remote control

22
T
Tables of engines 128–129
Tables of fuses
119–121
Tank, fuel

94–95
Technical data

128–129
Telephone

140–142, 163–165
Three flashes (direction indicators)

43
Time (setting)

143, 167
TMC (Traffic info)

154
Tools

111 , 111 – 11 2
Topping-up AdBlue®

105
Total distance recorder

15–16
Touch screen

13–14
Touch screen tablet

13–14
Towbar

97
Towed loads 127
Towing another vehicle
125–126
Towing eye

40
Traction control (ASR)

52
Traffic information (TMC)

154
Trailer

97
Trajectory control systems

52
Triangle, warning

40, 108
Trip computer

14–15
Trip distance recorder

15–16
Tyres

103, 131
Tyre under-inflation detection

75–76, 111
U
Under floor storage 40
Under-inflation (detection)
75
Unlocking

17–19
Unlocking from the inside

20
Unlocking the boot

18
Unlocking the doors

18, 20–21
Updating the date

143, 167
Updating the time

143, 167
USB

137–138, 161
V
Ventilation 31–32, 34
Visibility
35
Voice commands

149–152