2020 Alfa Romeo 4C parking sensors

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

151
Paint (identification plate) ....................121
Parking lights ..................................................17
Parking sensors .............................................77
Parking ................................................................69
handbrake ...................................................69
Passenger side front airbag
and child restraint systems ......................64
Passenger side front airbag .....................64
Performance ................................................132
Power windows ..............................................23
Pre-Fill (RAB - Ready Alert Brake)
system .................................................................52
Pretensioners ..................................................59
load limiters ..............................................60
Raising the car ............................................114
Read this carefully............................................2
Rear direction indicators ...........................85
Rear fog light/reversing light ..................86
Rear fog lights ................................................18
Rear light clusters
(changing a bulb) .............................................85
Rear-view mirror ............................................15
Refuelling .......................................................129
Refuelling the car .........................................79
Regular checks ............................................105
Remote control ..................................................9
Safety .................................................................49
SBR system (Seat Belt Reminder) ........59
Scheduled Servicing Plan .......................103
Seat belts ...........................................................57
use ..................................................................57
Seats ....................................................................13
Setup menu ...............................................32, 33
Side lights/brake lights ..............................86
Side lights/dipped beam
headlights ..........................................................17
Snow chains ...................................................126
Snow tyres .....................................................124
Spark plugs (type) ......................................122
Specifications ..............................................119
Speedometer .................................................30
Spider version ..............................................135
boot volume ............................................143
cleaning/washing the top.................138
CO
2emissions .......................................145
engine .........................................................144
front light clusters ..............................140
fuel consumption..................................145
performance ..........................................144
removable soft top..............................136
scheduled servicing ............................139
size...............................................................143
specifications.........................................142
weights ......................................................142Starting the engine ..............................68/72
Starting up and driving ...............................67
Steering wheel ................................................14
Steering wheel lock ......................................11
Tachometer .............................................30/31
TCT twin clutch transmission .................70
Third brake light
(bulb replacement) ........................................86
Towing the car .................................................99
attaching the tow ring ...........................99
TPMS (Tyre Pressure Monitoring
System) ...............................................................53
Trip Computer .................................................33
Tyres .................................................................123
Fix&Go Automatic (kit) ...............................94
inflation pressures ..............................124
snow tyres ...............................................124
tyres fitted ..............................................123
Using the Owner Handbook ........................3
Using the transmission ..............................70
Warning lights and messages .................34
Weights ............................................................128
Wheel rims and tyres ................................123
size...............................................................123
snow chains .............................................126
snow tyres ...............................................124