Electronic Stability Control (Esc) System - Alfa Romeo 4C Spider 2020 Owner's Manual

48 SAFETY
System Intervention
A slight pulsing of the brake pedal and noise
indicates the intervention of the ABS; this is
completely normal when the system intervenes.
E S C
LECTRONIC TABILITY ONTROL
S
YSTEM
The Electronic Stability Control (ESC) system
improves the directional control and stability of
the vehicle in various driving conditions.
The ESC system corrects the vehicle understeer
and oversteer, distributing the brake force on
the appropriate wheels. The torque supplied by
the engine can also be reduced in order to
maintain control of the vehicle.
WARNING!
Electronic Stability Control (ESC) cannot

prevent the natural laws of physics from
acting on the vehicle, nor can it increase the
traction afforded by prevailing road condi-
tions. ESC cannot prevent all collisions,
including those resulting from excessive
speed in turns, driving on very slippery
surfaces, or hydroplaning. ESC also cannot
prevent collisions resulting from loss of
vehicle control due to inappropriate driver
input for the conditions. Only a safe, atten-
tive, and skillful driver can prevent collisions.
The capabilities of an ESC equipped vehicle
must never be exploited in a reckless or
dangerous manner which could jeopardize
the user's safety or the safety of others.
WARNING! (Continued)
Vehicle modifications, or failure to properly

maintain your vehicle, may change the
handling characteristics of your vehicle,
(ESC)
and may negatively affect the performance
of the ESC system. Changes to the steering
system, suspension, braking system, tire
type and size or wheel size may adversely
affect ESC performance. Improperly
inflated and unevenly worn tires may also
degrade ESC performance. Any vehicle
modification 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
vehicle's 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.
(Continued)
This vehicle's advanced electronic brake
control system also includes: Electronic Brake
Distribution (EBD), Anti-Lock Brake System
(ABS), Cornering Brake Control (CBC) system,
Drag Torque Control (DTC) system, AntiSlip
Regulation (ASR) system, Hill Start Assist (HSA),
Hydraulic Brake Assistant (HBA) system,
ELECTRONIC Q2 (E-Q2) system and Ready Alert
Brake (RAB). All of the systems work together to
enhance vehicle stability and control in various
driving conditions, and are commonly referred
to as ESC.
System Activation
The ESC system activates automatically when
the engine 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.