2021 CITROEN C4 CACTUS warning

123
Blind spot monitoring
This system warns the driver of the presence of
another vehicle in the blind spot angle of their
vehicle (areas hidden from the driver's field
of vision), as soon as this presents a potential
danger.
A warning lamp appears in the door mirror on
the side in question:
-
i
mmediately, when being overtaken,
-

a
fter a delay of about one second, when
overtaking a vehicle slowly. This driving aid system is designed to
improve safety when driving and is in no
circumstances a substitute for the use
of the interior rear view mirror and door
mirrors. It is the driver's responsibility to
constantly check the traffic, to assess the
distances and relative speeds of other
vehicles and to predict their movements
before deciding whether to change lane.
This system is a driving aid that cannot, in
any circumstances, replace the need for
vigilance on the part of the driver.
Activation/Deactivation
Activation and deactivation of the system is
done in the vehicle configuration menu.
F

I
n the Driving/Vehicle menu
of the touch screen, select the
" Vehicle settings " tab then
" Safety " and activate/deactivate
" Blind spot sensors ".
Sensors fitted in the front and rear bumpers
monitor the blind spots.
The status of the system remains in memory
when the ignition is switched off. The system is automatically deactivated
when towing with a towing device
approved by CITROËN.
Operation
The alert is given by a warning lamp which
comes on in the door mirror on the side in
question as soon as a vehicle – car, lorry,
bicycle – is detected.
The following conditions must be met for this:
-

a
ll vehicles are moving in the same direction
and in adjacent lanes,
-

t
he speed of your vehicle must be between
7 and 87 mph (12 and 140 km/h),
-

y
ou overtake a vehicle with a speed
difference of less than 6 mph (10 km/h),
-

a v
ehicle overtakes you with a speed
difference of less than 16 mph (25 km/h),
-

t
raffic is flowing normally,
-

w
hen 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.
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Driving

124
Contact a CITROËN dealer or a qualified
workshop to have the system checked.
No alert will be given in the following situations:
-

i

n the presence of non-moving objects
(parked vehicles, barriers, street lamps,
road signs, etc.),
-
on

coming traffic,
-

d

riving on a winding road or a sharp corner,
-
w
hen 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,
-
w
hen overtaking quickly,
-
i
n very heavy traffic: vehicles detected in
front and behind are confused with a lorry or
a stationary object.
Operating fault
The system may suffer temporary
interference in certain weather conditions
(rain, hail, etc.).
In particular, driving on a wet sur face
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 weather or in winter, ensure that
the sensors are not covered with 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 or other objects; they may hamper
the correct operation of the system.
High pressure jet wash
When washing your vehicle, direct the
lance at least 30 cm away from the
sensors.
In the event of a malfunction, you are warned
by the display of a message.
Driving

127
Operating fault
If a fault occurs when shifting
to reverse, this warning lamp
comes on in the instrument panel,
accompanied by a message and an
audible signal (short beep).
Contact a CITROËN dealer or a qualified
workshop
to have the system checked.
Reversing camera
The reversing camera function may be
supplemented with parking sensors.
The reversing camera cannot, in any
circumstances, replace the need for vigilance
on the part of the driver.
They are represented by lines marked "on
the ground" and do not allow the position
of the vehicle to be determined relative to
tall obstacles (for example: other vehicles,
e t c .) .
Some distortion of the image is normal.
It is normal to have part of the number
plate showing in the bottom of the screen. The green lines 3 represent distances of about
one and two 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.
Clean the reversing camera regularly
using a soft, dry cloth.
High pressure washing
When washing your vehicle, keep the
lance at least 30 cm away from the
camera lens.
High pressure washing
When washing your vehicle, direct the
lance at least 30 cm away from the
sensors.
The reversing camera is activated automatically
when reverse gear is engaged.
The image is displayed on the touch screen. The superimposed representation of guide
lines helps with the manoeuvre.
The blue lines 1 represent the general direction
of the vehicle (the gap represents the width of
your vehicle except for the door mirrors).
The red line 2 represents a distance of about
30 cm beyond the edge of your vehicle's rear
b u m p e r.
Park Assist
This system provides active parking
assistance: it detects a parking space and then
steers in the appropriate direction to park in
this space while the driver controls the driving
direction, engagement of gears, acceleration
and braking.
To assist the driver in monitoring the
correct manoeuvring operation, the system
automatically triggers the display of the rear
view camera and the activation of the parking
sensors.
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Driving

132
Recommendations on care
- Regularly check that the sensors and cameras are clean.
If necessary, clean the camera lenses with
a soft, dry cloth.
-

I
f using a high-pressure washer, do not
direct the lance less than 30 cm from the
sensors and cameras.
-

I
n bad weather, or during the winter, ensure
that the sensors and cameras are not
covered with mud, ice or snow.
Operating faults
When the function is not activated,
the button warning lamp flashing
and an audible signal indicates a
system fault.
If the fault occurs during the use of the system,
the warning lamp goes off.
If the fault in the parking sensors,
indicated by this warning lamp
coming on, occurs during use, it
causes the function to deactivate.
In the event of a fault, have the system checked
by a CITROËN dealer or a qualified workshop. In the event of a fault with the
power steering, this warning lamp
flashes in the instrument panel,
accompanied by a message.
You must stop as soon as it is safe to do so.
Contact a CITROËN dealer or a qualified
workshop.
Tyre under-inflation
detection
System which automatically checks the
pressures of the tyres while driving.
The system monitors the pressure in all four
tyres, as soon as the vehicle is moving.
It compares the information given by the
wheel speed sensors with reference values,
which must be reinitialised after ever y tyre
pressure adjustment or wheel change .
The system triggers an alert as soon as it
detects a drop in the pressure of one or more
tyres. The tyre under-inflation detection system
does not replace the need for vigilance on
the part of the driver.
This system still requires you to check the
tyre inflation pressure (including the spare
wheel) every month as well as before a
long journey.
Driving with under-inflated tyres impairs
handling, extends braking distances and
causes premature tyre wear, particularly
in adverse conditions (heavy loads, high
speeds, long journeys).
Driving with under-inflated tyres
increases fuel consumption.
The tyre pressure specifications for your
vehicle can be found on the tyre pressure
label.
For more information on the
Identification markings , refer to the
corresponding section.
Driving

133
Tyre pressures should be checked when
the tyres are "cold" (vehicle stopped for
1 hour or after a journey of less than
6 miles (10 km) at moderate speeds).
Other wise (when hot), add 0.3 bar to the
pressures shown on the label.
Under-inflation alert
This warning is indicated by
continuous illumination of this lamp,
an audible signal and a message
displayed on the screen.
F

R

educe speed immediately, avoid excessive
steering movements and sudden braking.
F

S

top 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 a simple visual check. F

I
f you have 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.
or
F
I
n the event of a puncture, use the
temporary puncture repair kit or the spare
wheel (depending on equipment).
The warning remains active until the
system is reinitialised.
Reinitialisation
The system must be reinitialised after any
adjustment to the pressures of one or more
tyres, and after changing one or more wheels. Before reinitialising the system, ensure
that the pressures of the four tyres
are correct for the conditions of use
of the vehicle and conform to the
recommendations on the tyre pressure
label.
The under-inflation alert can only be relied
on if the reinitialisation of the system has
been done with the pressures in the four
tyres correctly adjusted.
The under-inflation detection system
does not give a warning if a pressure is
incorrect at the time of reinitialisation.
Reinitialisation of the system is done via the
touch screen, with the ignition on and the
vehicle stationary .
F I n the Driving/Vehicle menu,
select the " Driving functions "
tab, then " Reset under-
inflation detection ".
F

Sel
ect "Ye s" to confirm.
The reinitialisation is confirmed by the display
of a message and an audible signal.
Snow chains
The system does not have to be
reinitialised after fitting or removing snow
chains.
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134
The under-inflation alert can only be relied
on if the reinitialisation of the system has
been done with the pressures in the four
tyres correctly adjusted.
Operating fault
The flashing and then fixed illumination of the
under-inflation warning lamp accompanied
by illumination of the Ser vice warning lamp
indicates a fault in the system.
In this case, under-inflation monitoring of the
tyres is no longer assured.
Have the system checked by a CITROËN
dealer or a qualified workshop.After carrying out any work on the system,
the pressures of the four tyres must be
checked and the system reinitialised.
Driving

137
Fuel tank
Tank capacity:
- Pe trol: approximately 50 litres.
-

D
iesel: approximately 45 or 50 litres
(depending on version).
If you have put in the wrong fuel for
your vehicle, you must have the tank
drained and refilled with the correct
fuel before you star t the engine.
Low fuel level
When the low fuel level is reached,
this warning lamp in the instrument
panel comes on, accompanied by
an audible warning, a message and
the last bar of the fuel gauge flashes
in red.
When it first comes on, about 5 litres of fuel
remain in the tank.
Until sufficient fuel has been added, this
warning lamp appears every time the ignition
is switched on, accompanied by an audible
signal and a message. This audible warning
and message are repeated with increasing
frequency as the fuel level drops towards " 0".
You must refuel as soon as possible to avoid
running out. For more information on Running out of
fuel (Diesel)
, refer to the corresponding
section.
Refilling
A label on the inside of the fuel filler flap
reminds you of the type of fuel to use,
depending on your engine type.
Additions of fuel must be of at least 5 litres, in
order to be registered by the fuel gauge.
Opening the filler cap may create a noise
caused by an inrush of air. This is entirely
normal and results from the sealing of the fuel
system.
To refuel in complete safety:
F

Y
ou must switch off the engine. F

W
ith the vehicle unlocked, press the rear-
central part of the filler flap.
F
T
ake care to select the pump that delivers
the correct type of fuel for your vehicle.
F
I
nsert the key in the cap then turn it to
the left, or turn the cap by hand to the left
(depending on version).
Once you have finished refuelling:
F

R
efit the filler cap.
F

T
urn the key to the right then remove it from
the cap, or turn the cap manually to the right
(depending on version).
F

P
ush the fuel flap to close it.
F

R
emove the cap and place it on its support
(on the filler flap).
F

I
nsert the filler nozzle as far as possible
before starting the filling (risk of splashing).
F

F
ill up the tank, but do not continue after
the 3
rd cut-off of the nozzle; this could
cause malfunctions.
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Practical information

142
After refitting a front wiper blade
F Switch on the ignition.
F O perate the wiper stalk again to park the
wiper blades.
Replacement of wiper arms should be
carried out only by a CITROËN dealer or
in a qualified workshop.
Roof bars
For safety reasons and to avoid damaging
the roof, it is essential to use the
transverse bars approved for your vehicle.
Obser ve the fitting instructions and the
conditions of use in the guide supplied
with the roof bars.
Version without longitudinal
bars
To install the roof bars, you must secure them
only to the four fixing points in the roof frame.
These points are masked by the vehicle's doors
when closed.
The roof bar fixings include a lug to be fitted
into the hole at each fixing point.
Version with longitudinal
bars
You must fit the transverse bars to the
longitudinal bars at the fixing points indicated
by engraved markings on the longitudinal bars.
Recommendations
F

D
istribute the load uniformly, taking
care to avoid overloading one of the
sides.
F

A
rrange the heaviest part of the load
as close as possible to the roof.
F

L
ash the load down securely and fit a
warning flag if it overhangs the vehicle.
F

D
rive gently: the vehicle will be more
susceptible to the effects of side winds
(stability may be affected).
F

R
emove the roof bars once they are no
longer needed.
Practical information