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ESC (Electronic
Stability Control)
system 15)
This is an electronic system that
controls vehicle stability in the event of
tyre grip loss, helping maintain
directional control.
The system is capable of recognising
potentially dangerous situations in
terms of the stability and intervenes
automatically on the brakes in a
differentiated manner for the four
wheels in order to provide a stabilising
torque.
The ESC system also includes the
following subsystems:
❒ HH (Hill Holder): it activates
automatically when starting with car
stationary, on a road with a
gradient higher than 5%.
❒ ASR (AntiSpin Regulation):
The system automatically operates
in the event of slipping, loss of grip
on wet roads (aquaplaning) and
acceleration on slippery, snowy or
icy roads, etc. on one or both drive
wheels.
The ASR comes on automatically
whenever the engine is started. When
driving it is possible to deactivate and
then reactivate the ASR system by
pressing the button A fig. 50: the
system activation is signalled by the
LED on the same button switching on
and, on some versions, by a message
on the display.
❒ HBA (Hydraulic Brake Assist): it
operates automatically and
improves the braking capacity of the
vehicle during emergency braking.
50DVDF0S0151c
SYSTEM INTERVENTION
It is signalled by the blinking of the
warning light
Ion the instrument
panel, to inform the driver that the car
is in critical stability and grip
conditions.
SYSTEM ACTIVATION
The ESC system switches on
automatically when the engine is
started and cannot be switched off.
