brake sensor Alfa Romeo 4C Spider 2019 Owner's Manual

Under-inflation also reduces fuel efficiency and tire
tread life, and may affect the vehicle’s handling and
stopping ability.
Please note that the TPMS is not a substitute for proper
tire maintenance, and it is the driver ’s responsibility to
maintain correct tire pressure, even if under-inflation
has not reached the level to trigger illumination of the
TPMS low tire pressure telltale.
Your vehicle has also been equipped with a TPMS
malfunction indicator to indicate when the system is
not operating properly. The TPMS malfunction indica-
tor is combined with the low tire pressure telltale. When
the system detects a malfunction, the telltale will flash
for approximately one minute and then remain continu-
ously illuminated. This sequence will continue upon
subsequent vehicle start-ups as long as the malfunction
exists. When the malfunction indicator is illuminated,
the system may not be able to detect or signal low tire
pressure as intended. TPMS malfunctions may occur for
a variety of reasons, including the installation of re-
placement or alternate tires or wheels on the vehicle
that prevent the TPMS from functioning properly. Al-
ways check the TPMS malfunction telltale after replac-
ing one or more tires or wheels on your vehicle toensure that the replacement or alternate tires and
wheels allow the TPMS to continue to function prop-
erly.
CAUTION!
The TPMS has been optimized for the original
equipment tires and wheels. TPMS pressures and
warning have been established for the tire size
equipped on your vehicle. Undesirable system op-
eration or sensor damage may result when using
replacement equipment that is not of the same size,
type, and/or style. Aftermarket wheels can cause
sensor damage. Using aftermarket tire sealants may
cause the Tire Pressure Monitoring System (TPMS)
sensor to become inoperable. After using an after-
market tire sealant it is recommended that you take
your vehicle to your authorized dealer to have your
sensor function checked.
— Anti-Lock Brake (ABS) Warning Light
This light monitors the Anti-Lock Brake System (ABS).
The light will turn on when the ignition is placed in the
ON/RUN or MAR/ON/RUN position and may stay
on for as long as four seconds.
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WARNING!(Continued)
inflated and unevenly worn tires may also de-
grade ESC performance. Any vehicle modifica-
tion or poor vehicle maintenance that reduces the
effectiveness of the ESC system can increase the
risk of loss of vehicle control, vehicle rollover,
personal injury and death.
The ESC system uses sensors installed on the vehicle to
determine the trajectory that the driver intends to
follow and compares it with the vehicles effective
trajectory. When the real trajectory deviates from the
desired trajectory, the ESC system intervenes to counter
the vehicles understeer or oversteer.
• Oversteer: occurs when the vehicle is turning more
than it should according to the angle of the steering
wheel.
• Understeer: occurs when the vehicle is turning less
than it should according to the angle of the steering
wheel.
This vehicle’s advanced electronic brake control system
also includes: Electronic Brake Distribution (EBD), Anti-
Lock Brake System (ABS), Cornering Brake Control
System (CBC), Drag Torque Control System (DTC), AntiSlip Regulation System (ASR), Hill Start Assist
(HSA), Hydraulic Brake Assistant System (HBA),
ELECTRONIC Q2 system (E-Q2) and Ready Alert Brake
(RAB). All of the systems work together to enhance
vehicle stability and control in various driving condi-
tions, and are commonly referred to as ESC.
System Activation
The ESC system activates automatically when the en-
gine is started and can only be deactivated by selecting
Race
mode. Refer to the Six-Speed Alfa Twin Clutch
Transmission in “Starting And Operating.”
System Intervention
This is indicated by the flashing of the warning light on
the instrument panel, to inform the driver that the
vehicle is in critical stability and grip conditions.
Electronic Brake Distribution System (EBD)
The EBD system is an integral part of the ESC system
and intervenes during braking, distributing the brake
force optimally between front and rear wheels.
This guarantees greater braking stability for the vehicle,
preventing sudden locking of the rear wheels and the
consequent instability of the vehicle.
90 SAFETY

STARTING AND OPERATING
CONTENTS
STARTING THE ENGINE ...............137
▫ Automatic Transmission ...............137
▫ Normal Starting ..................... .137
▫ Cold Weather Operation ...............138
▫ If Engine Fails To Start ................138
▫ After Starting ...................... .138
▫ Turbo Charger “Cool Down” ............138
 ENGINE BREAK-IN RECOMMENDATIONS . .139
 PARKING BRAKE .....................139
 SIX-SPEED ALFA TWIN CLUTCH
TRANSMISSION ..................... .141
▫ Using The Transmission ...............141
 ALFA DNA SYSTEM (DYNAMIC VEHICLE
CONTROL SYSTEM) ...................146
▫ Driving Modes ..................... .147▫
System Failure ...................... .149
▫ Launch Control .....................150
 SPEED CONTROL — IF EQUIPPED ........150
▫ To Activate ........................ .151
▫ To Set A Desired Speed ................151
▫ To Vary The Speed Setting ..............152
▫ To Accelerate For Passing ..............153
▫ To Resume Speed ....................153
▫ To Deactivate ...................... .153
 PARKING SENSORS — IF EQUIPPED ......153
▫ Acoustic Signal ..................... .154
▫ Indications On Display — If Equipped .....154
▫ Activation/Deactivation ................155
▫ Fault

Indication ..................... .155
6

To Accelerate For Passing
Press the accelerator as you would normally. When the
pedal is released, the vehicle will return to the set speed.
To Resume Speed
To resume a previously set speed, push the CANCEL/
RESUME button, located on the end of the speed
control stalk, and release. Resume can be used at any
speed above 18 mph (30 km/h).
To Deactivate
A soft tap on the brake pedal, pushing the CANCEL/
RESUME button on the end of the stalk, or normal
brake pressure while slowing the vehicle will deactivate
the Speed Control without erasing the set speed
memory. Rotating the end of the multifunction lever to
the O (off) position, or turning the ignition switch to
OFF, erases the set speed memory.
PARKING SENSORS — IF EQUIPPED
The vehicle’s parking sensors are located in the rear
bumper, and will detect the presence of any obstacles
near the rear part of the vehicle while moving in
REVERSE gear. The driver is then informed through an
intermittent acoustic signal.
Parking Sensors
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If an obstacle is detected in the rear central area, the
instrument cluster display shows all the arcs in the rear
central area, up to the one that corresponds to the
position of the obstacle itself.
The signal is similar for obstacles in the rear left or right
area.
The arc that corresponds to the position of the obstacle
will flash.
The color on the instrument cluster display depends on
the distance from and position of the obstacle.
The vehicle is close to the obstacle when the instrument
cluster display shows a single constant arc and emits a
continuous sound.
If there are several obstacles, the closest one is indi-
cated.
Activation/Deactivation
The sensors are automatically activated when REVERSE
gear is engaged and a visual display will appear in the
instrument cluster display. As the obstacle behind the
vehicle gets closer, the acoustic signal becomes more
frequent.
Fault Indication
Parking sensor failures, if any, will be indicated when
REVERSE gear is engaged by the illumination of the
warning light in the instrument cluster display.
General Warnings
When parking, take the utmost care over obstacles that
may be above or under the sensor.
Under certain circumstances, objects close to the vehicle
are not detected by the system and could therefore
cause damage to the vehicle or be damaged themselves.
Some conditions may influence the performance of the
parking sensors:
• The presence of ice, snow, mud or multiple layers of
paint on the sensor surface may cause reduced
sensitivity of the sensor itself and therefore reduce
the system performance.
• Mechanical interference (e.g washing the vehicle,
rain, strong wind, hail) may cause the sensor to
detect a non-existent obstacle (“echo interference”).
• The presence of ultrasonic systems (e.g. pneumatic
brake systems of trucks or pneumatic drills) near the
vehicle could alter the signals sent by the sensor.
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