Hba (Hydraulic Brake Assist) System - Fiat 500 Hybrid 2020 Owner's Handbook Manual

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HBA (Hydraulic Brake
Assist) SYSTEM
It is an integral part of the ESC system.
The HBA system is designed to
improve the car's braking capacity
during emergency braking.
The system detects an emergency
braking by monitoring the speed and
strength with which the brake pedal is
pressed, thereby applying the optimal
brake pressure. This can reduce the
braking distance: the HBA system
therefore completes the ABS.
Maximum assistance of the HBA
system is obtained pressing the
brake pedal very quickly; in addition,
the brake pedal should be pressed
continuously during braking, avoiding
intermittent presses, to obtain benefits
from the system.
Do not reduce pressure on the
brake pedal until braking is no longer
necessary.
The HBA system is deactivated when
the brake pedal is released.
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WARNING
F0S0518
46) When the ABS cuts in and you feel
the brake pedal pulsating, do not remove
your foot, but keep the pedal pushed
down; in doing so you, will stop in the
shortest distance possible under the road
conditions at the time.
47) To obtain the maximum efficiency of
the braking system, a bedding-in period
of about 500 km is needed: during this
period it is better to avoid sharp, repeated
and prolonged braking.
48) If the ABS system intervenes, this
indicates that the traction of the tyres on
the road is nearing its limit. You must slow
down to a speed compatible with the
available traction.
49) The ABS cannot overrule the natural
laws of physics, and cannot increase the
grip available according to the condition of
the road.
50) The ABS cannot prevent accidents,
including those due to excessive speed
on corners, driving on low-grip surfaces or
aquaplaning.
51) The capability of the ABS must never
be tested irresponsibly and dangerously,
in such a way as to compromise personal
safety and the safety of others.
52) For the correct operation of the ABS,
the tyres must of necessity be the same
make and type on all wheels, in perfect
condition and, above all, of the prescribed
type and dimensions.
53) If the space-saver spare wheel (for
versions/markets, where provided) is
used, the ABS keeps operating. Always
remember that the space-saver wheel,
being smaller than the original wheel,
provides less grip.
54) The ABS gets the most from the
available grip, but it cannot improve it; you
should therefore take every care when
driving on slippery surfaces and not take
unnecessary risks.
55) For the correct operation of the ESC
system, the tyres must necessarily be of
the same make and type on all wheels,
in perfect condition and, above all, of the
prescribed type and size.
56) The ESC functions even when the
space-saver wheel is being used. Always
remember that the space-saver wheel,
being smaller than the original wheel,
provides less grip.
57) ESC performance features must not
induce the driver to take unnecessary or
unfounded risks. Your driving style must
always be suited to the road conditions,
visibility and traffic. The driver is always
responsible for road safety.
58) The ESC system cannot alter the
natural laws of physics, and cannot
increase grip, which depends on the
condition of the road.
59) The ESC system cannot prevent
accidents, including those due to
excessive speed on corners, driving on
low-grip surfaces or aquaplaning.
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