Seat Leon 2020 Owner's manual

Page 251 of 399

Driver assistance systems
Emergency brake assistance
syst em (Fr
ont Assist)*
Introduction The objective of the system is to prevent
head-on collisions against ob
jects that may
be in the v

ehicle’s path or minimise the con-
sequences of such impacts.
The function is designed to avoid collisions
against:


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Driving
Advance warning
If the syst em det
ects a possible collision with
the vehicle in front, it alerts the driver by
means of an audible warning and an indica-
tion on the instrument panel display {
››› Fig. 176.
The warning moment varies depending on
the traffic situation and driver behaviour. At
the same time, the vehicle will prepare for a
possible emergency braking ››› in Intro-
duction on page 2 49

.
When Front Assist is connected, the indica-
tions of other functions on the screen may be
hidden.
Critical warning
If the driver fails to react to the advance
warning, the system may actively intervene
in the brakes and generate a brief jolt to warn
the driver of the imminent danger of a colli-
sion.
Automatic braking
If the driver also fails to react to the critical
warning, the system may initiate independ-
ent emergency braking by progressively in-
creasing the braking in accordance with the
criticality of the situation. Driver emergency braking assistance sys-
tem
If the driv

er, after the critical warning, starts
braking but the system detects that the brake
is not being applied with sufficient force, the
braking intensity will be increased. This brake
assist only occurs if the pedal is pressed firm-
ly. WARNING


Page 253 of 399

Driver assistance systems
Limitations
This syst em does not r
eact to objects that
cross transversely or to animals. The basic
limitations of the Front Assist must also be
taken into account ››› page 251
.
Turn assist Turn assist can avoid a collision with a vehicle
appr
oaching in the opposit

e direction, by
braking the vehicle itself when the intention is
to turn.
This system is active up to 15 km/h (9 mph).
Limitations
The turn-off assist function is available if you
have indicated your intention to turn by acti-
vating the turn signal, you have turned the
steering wheel and the turning path has star-
ted.
It only reacts to vehicles that are in the path
of the vehicle (not to animals, people, etc.).
The basic limitations of the Front Assist must
also be taken into account ››› page 251
. System limitations
Fig. 177
On the instrument panel display: ini-
tial syst em self

-calibration indication. Front Assist has certain limitations inherent to
the syst
em. Thus, in cert

ain circumstances,
some of the reactions may be inappropriate
from the driver's standpoint. So pay attention
in order to intervene if necessary.
The following conditions may cause the
Front Assist not to react or to do so too
late:


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Driving


Page 255 of 399

Driver assistance systems
Activate or deactivate the dodge and turn
assist ant
The dodge and t
urn assistance systems can
be activated or deactivated in the infotain-
ment system using the function button  > Driver assistance > Front Assist
››› page 96.
The system will store the setting for the next
time the ignition is switched on.
SEAT recommends having the dodge and
turn assistance systems activated except in
the exceptions described in section
››› page 253.
Deactivating Front Assist temporarily in
the following situations
In the following situations the Front Assist
should be deactivated due to the system's
limitations:


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Driving
the laws of physics. If used negligently or
inv
olunt
arily, it may cause serious acci-
dents and injuries. The system is not a re-
placement for driver awareness.


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Driver assistance systems
%
It lights up green
The ACC is active a)
. a)
Only on analogue instrument clusters.

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Driving
adjust the speed of the distance due to the
limit
ations of the syst
em.


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Driver assistance systems
instrument cluster for a few seconds. You can
e xt
end or reactivate this warning by pressing
the button  or, depending on your vehicle’s
equipment, by grabbing the steering wheel.
During this time, the vehicle will move off
again if the vehicle in front moves forwards.
To move off when the message ACC ready
to start is not longer displayed, once the
vehicle in front has moved off:


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Driving


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