sensor Alfa Romeo 4C 2020 Owner handbook (in English)

KNOWING THE INSTRUMENT PANEL TOOLS
38
Warning lights on panelMeaningWhat to do
In any situation in which the message is “See manual”, it is
ESSENTIAL to refer to the contents of the “Wheels”
paragraph in the “Technical data” chapter, strictly
complying with the indications that you find there.
Low tyre pressure - See manual
The warning light switches on, together with a dedicated
message on the display, to indicate that the tyre pressure
is lower than the recommended value and/or that slow
pressure loss is occurring. In these circumstances, optimal
tyre duration and fuel consumption may not be
guaranteed.
Should two or more tyres be in the condition mentioned
above, the display will show the indications corresponding
to each tyre in sequence.
Contact a dedicated Alfa Romeo Dealership as soon as
possible. TPMS system fault
The warning light switches on when a fault is detected in
the TPMS.
Should one or more wheels be fitted without sensors, the
display will show a warning message until initial conditions
are restored.IMPORTANT Do not continue driving with one or more flat
tyres as handling may be compromised. Stop the vehicle,
avoiding sharp braking and steering. Repair immediately
using the dedicated kit (see “Repairing a wheel” paragraph
in the “In an emergency” chapter) and contact the
dedicated Alfa Romeo Dealership as soon as possible. TPMS SYSTEM

KNOWING THE INSTRUMENT PANEL TOOLS
44
Warning lights on panelMeaningWhat to do
FUEL RESERVE / LIMITED RANGE
The digital warning light switches on in the display when
there is approximately 4 - 5 litres of fuel left in the tank.
FUEL RESERVE SENSOR / LIMITED RANGE FAULT
The digital warning light switches on in the display when a
fuel reserve sensor fault is detected.
The associated message appears on the display.
CRUISE CONTROL
(where provided)
The digital warning light comes on when the key is turned
to MAR, but should go out after a few seconds if the
Cruise Control function is off.
The warning light comes on when the Cruise Control wheel
is turned to the ON position (see the “Cruise Control”
paragraph in this chapter).
The associated message appears on the display.
MIRROR DEMISTING / DEFROSTING
The digital warning lights switches on in the display when
the button located on the control panel is pressed.
Contact a dedicated
Alfa Romeo Dealership as soon as possible.
24

KNOWING THE INSTRUMENT PANEL TOOLS
46
Warning lights on panelMeaningWhat to do
GENERIC FAILURE INDICATION
(where provided)
The symbol appears on the display together with the
events shown below.
Engine oil pressure sensor
The symbol appears when a failure is detected in the
engine oil pressure sensor. The display shows the
dedicated message.In this case, go to a dedicated
Alfa Romeo Dealership as soon as possible to have the
fault corrected.
Clutch overheating message
The
symbol, together with a message on the display,
lights up to indicate clutch overheating.
If you continue driving, the symbol
will disappear and
the warning light will come on (on some versions
together with a message on the display) to indicate a
gearbox fault.
If the symbol comes on together with a message on
the display, limit the gear shifting and/or change the
condition of use, until normal operating conditions are
restored.
If the warning light lights up (a message will appear on
the display, on some versions) stop immediately, operate
the handbrake, switch off the engine and wait 5 minutes:
after this, normal transmission operating conditions will
be restored.
Should the transmission failure condition persist, contact
the dedicated Alfa Romeo Dealership.
FUEL CUT-OFF SYSTEM
The symbol and the corresponding message are shown on
the display in the following cases:
❒ fuel cut-off system intervention:
the yellow symbol lights up;
❒ fuel cut-off system failure:
the red symbol lights up.For reactivating the fuel cut-off system, refer to the
description in the
“Fuel cut-off system” section in the “In an emergency”
chapter. If it is not possible to restore the fuel supply,
contact a dedicated Alfa Romeo Dealership.
s è

47
Warning lights on panelMeaningWhat to do
BOOT OPEN
The symbol and the corresponding message are shown on
the display.
POSSIBLE ICE ON ROAD
The symbol and corresponding message appear on the
display when the outside temperature is below or equal to
3°C.
IMPORTANT In the event of outside temperature sensor
failure, the digits that indicate the value are replaced by
dashes.
BRAKE LIGHT FAULT
The symbol and the corresponding message are shown on
the the display when a brake light fault is
detected.The fault may be caused by a burnt bulb, a blown
protection fuse or an interruption of the electric
connection.
PARKING SENSOR FAULT
The symbol and corresponding message appear on the
display if there is a parking sensor failure.
DISPLAY OF SELECTED DRIVING MODE
(Alfa DNA system)
A letter (d, n, or a) corresponding to the active driving
mode (dynamic or race, normal, all weather) and an
associated message are shown on the display.
R
T
t

SAFETY
54 The TPMS uses wireless devices with
electronic sensors mounted on the wheel
rims to constantly monitor the value of
tyre pressure.

The sensors mounted on each wheel as
part of the valve stem transmit various
information of the tyres to the receiver
module, in order to calculate the
pressure.
IMPORTANT Monitoring and maintaining
the correct pressure in all four tyres are
particularly important.
Tyre pressure monitoring system
low pressure warnings
43) 44) 45) 46) 47) 48) 49) 50) 51)
The system warns the driver if one or
more tyres are flat by switching on the
nwarning light constantly and by
displaying a dedicated messages.
In this case, stop the car as soon as
possible, check the inflation pressure of
each tyre and inflate to the cold tyre
pressure value prescribed for the car.
The system will automatically update
and after receiving the pressure update
the tyre pressure warning light switches
off.
You may need to drive the car for about
20 minutes at a speed higher than 20
km/h to allow the system to receive this
information.
32A0L0113
TPMS operation faults
The system fault is indicated by the
dedicated warning light
nwhich first
flashes for 75 seconds and then stays on
steadily. This can occur in any of the
following situations:
❒ Interference caused by electronic
devices or radio frequency emissions
similar to those of the TPMS sensors.
❒ Application of tinted films which
interfere with the signals of the radio
waves.
❒ Presence of snow or ice on the wheels
or the wheel arches.
❒ Use of snow chains.
❒ Use of wheels/tyres not equipped
with TPMS sensors.

55
OperationSensor presence on wheel
installed on vehicleFault indicationAction needed
–
Wheel replacement with
winter tyres
Wheel replacement wit
winter tyres
Wheel replacement with others of
different size (*)–
NO
YES
YESYES
SI
NO
NOContact a dedicated Alfa Romeo
Dealership
Contact a dedicated Alfa Romeo
Dealership
–
–
(*) Shown as an alternative in the Owner Handbook or on the registration certificate;
available at Lineaccessori Alfa Romeo. In order to use the system properly, refer to the following table when you have to change wheels/tyres:

SAFETY
56
43)The presence of the TPMS does not
permit the driver to neglect regular
checks of the tyre pressure, including for
the spare wheel.
44)Tyre pressure must be checked with
tyres rested and cold. Should it become
necessary for whatever reason to check
pressure with warm tyres, do not reduce
pressure even though it is higher than the
prescribed value. Repeat the check when
the tyres are cold.
45)Should one or more wheels be fitted
without sensors, the system will no longer
be available and, in addition to the TPMS
warning light flashing for less than one
minute before becoming constant, a
warning message will be shown on the
display, until 4 wheels with sensors are
fitted again.
46)The TPMS cannot warn of sudden
decreases in tyre pressure (for example
when a tyre bursts). In this case, stop the
car, braking with caution and avoiding
abrupt steering.
47)Replacing standard tyres with winter
tyres (and vice versa) requires TPMS
adjustment that must only be performed
by a dedicated Alfa Romeo Dealership.
IMPORTANT48)Changes in outside temperature may
cause tyre pressures to vary. The TPMS
system may temporarily indicate
insufficient pressure. In this case, check
the tyre pressure when cold and, if
necessary, restore the inflation values.
49)When a tyre is removed, it is
advisable to replace the rubber valve seal
as well: contact a dedicated Alfa Romeo
Dealership. Tyre and/or rim
fitting/removal operations require
specific precautions; to avoid damaging
or fitting the sensors incorrectly, tyre
and/or rim fitting/removal operations
should only be carried out by specialised
staff. Contact a dedicated Alfa Romeo
Dealership.
50)Strong radio-frequency interference
could inhibit the regular operation of the
TPMS. This condition will be indicated by
a message on the display. The message
will disappear automatically as soon as
the radio-frequency interference ceases
to affect the system.51)The tyre repair kit (“Fix&Go
Automatic”) provided with the car (where
provided) is compatible with the TPMS
sensors; using sealants not equivalent
with that in the original kit may adversely
affect its operation. If sealants not
equivalent with the original one are used,
it is recommended to have the TPMS
sensors checked by a qualified repair
centre.

STARTING AND DRIVING
STARTING THE ENGINE........................................................................................ 68
PARKING .......................................................................................................................69
TCT TWIN CLUTCH TRANSMISSION ............................................................ 70
CRUISE CONTROL.................................................................................................... 75
PARKING SENSORS ............................................................................................... 77
REFUELLING THE CAR ......................................................................................... 79
Let’s get to the heart of the matter: seeing how you can exploit
all the potentials of your car to the fullest.
This is how to drive your car safely in all conditions for
pleasantly comfortable and cost-efficient travelling.

77
PARKING SENSORS
(where provided)
They are located in the rear bumper
fig. 49 and their function is to detect the
presence of any obstacles near the rear
part of the car; they consequently inform
the driver, through an intermittent
acoustic signal.
ACTIVATION
The sensors are automatically activated
when reverse gear is engaged.
As the obstacle behind the vehicle gets
closer, the acoustic signal becomes more
frequent.
49A0L0043
BUZZER
When reverse gear is engaged and there
is an obstacle behind the vehicle, an
acoustic signal is emitted which varies
according to the distance of the bumper
from the obstacle.
The frequency of the acoustic signal:
❒ increases as the distance between car
and obstacle decreases, culminating in a
continuous acoustic signal, when the
distance is less than approximately
30 cm;
❒ decreases if the distance from the
obstacle increases, until the signal ceases
entirely;
❒ is constant if the distance between
the vehicle and the obstacle is
unchanged;
❒ if this situation concerns the side
sensors, the signal will stop after
approximately 3 seconds to avoid, for
example, indications in the event of
manoeuvres along a wall.
If several obstacles are detected by the
sensors, only the nearest one is
considered.
INDICATIONS ON DISPLAY
(where provided)
When the sensors are activated, the
screen in fig. 50 appears on the display.
Obstacle presence and distance
information is therefore provided both by
the acoustic signal and the instrument
panel display.
If there are more obstacles the closest
one in the vicinity is reported.
50A0L0044

STARTING AND DRIVING
78
IMPORTANT NOTES
81)
8)
During parking manoeuvres, pay the
utmost attention to any obstacles that
could be located above or below the
sensors.
Under certain circumstances, objects
close to the vehicle are not detected by
the system and could therefore cause
damage to the car or be damaged
themselves.
The following conditions may influence
the performance of the parking sensors:
❒ the presence of ice, snow, mud or
think paint on the sensor surface may
cause reduced sensitivity of the sensor
itself and therefore reduce the system
performance;
❒ the sensor may detect a non-existent
obstacle (“echo interference”) due to
mechanical interference, for example
when washing the vehicle, in rain (strong
wind), hail;
❒ the signals sent by the sensor can also
be altered by the presence of ultrasonic
systems (e.g. pneumatic brake systems
of trucks or pneumatic drills) near the
vehicle;
❒ the variation in sensor position,
caused by variation in ride (due to
suspension component wear), changing
tyres, overloaded car, or tuning that
lowers the car, for example, may affect
parking sensor system performance.
81)The responsibility for parking and
other dangerous manoeuvres always and
in every case lies with the driver.
While carrying out these manoeuvres,
always make sure that no people
(especially children) or animals are in the
area concerned. The parking sensors are
used to assist the driver, who must never
allow his attention to lapse during
potentially dangerous manoeuvres, even
those executed at low speeds.
IMPORTANT
8)The sensor must be clean of mud, dirt,
snow or ice in order for the system to
operate correctly. Be careful not to
scratch or damage the sensors while
cleaning them. Avoid using dry, rough or
hard cloths. The sensors must be washed
using clean water, with the addition of
vehicle shampoo if necessary. When using
special washing equipment such as high
pressure jets or steam cleaning, clean the
sensors very quickly keeping the jet more
than 10 cm away. Also, do not apply
stickers to the sensors.
WARNING