2019 Seat Leon Owner's manual

Driver assistance systems
ACC operation Fig. 276
On the left of the steering column: op-
er ating the ACC with the thir d l
ev
er.Fig. 277
On the left of the steering column: op-
er ating the ACC with the thir d l
ev

er.When the ACC is connected, the green con-
tr
ol l
amp

Driving
Disconnecting and deactivating the ACC

Driver assistance systems

Driving
The system brakes the vehicle to avoid over-
t aking on the right, and will av
oid ov
ert
aking
based on speed. The driver can interrupt the
intervention of the ACC by pressing the ac-
celerator. At low speeds the function is inac-
tive, for greater comfort in a traffic jam or in
city traffic.
Deactivating the ACC temporarily
in certain situations In the following situations the ACC should be
deactiv
at
ed due t o the syst
em

Driver assistance systems
Overtaking
When the t urn signal lights up bef
ore the v
e-
hicl
e starts to overtake, the ACC accelerates
the vehicle automatically and thus reduces
the distance from the vehicle in front.
When the vehicle moves to the overtaking
lane, if the ACC does not detect another ve-
hicle in front, it accelerates until it reaches the
programmed speed.
System acceleration can be interrupted at
any time by pressing the brake or moving the
third lever to position 

Driving
Overheated brakes
If the br ak
es o v
erheat, f
or example on long
and steep descents, the ACC may be deacti-
vated temporarily. A message will be dis-
played stating this. In this case, adaptive
cruise control cannot be activated.
Cruise control may be reactivated once the
brake temperature has dropped. The mes-
sage will disappear. If the message ACC not
available remains on for quite a long time it
means that there is a fault. Contact a speci-
alised workshop. SEAT recommends visiting a
SEAT dealership. WARNING
If you do not pay attention to the Press
the brake message, the vehicle may mo v

e
and crash into the vehicle ahead. Before
driving off again, check that the road is
clear. The radar sensor may not detect ob-
stacles on the road. This could cause an
accident and serious injuries. If necessary,
apply the brake. Lane Assist*
Intr oduction Fig. 281
On the windscreen: field of vision of
the L ane Assist syst
em. Using the camera located in the windscreen,
the L
ane Assist syst
em detects the possibl
e
lines dividing the l

anes. When the vehicle in-
voluntarily approaches a dividing line it has
detected, the system notifies the driver with a
corrective steering movement. The purpose is
not only to warn the driver, but also to keep
the vehicle inside the lane. This movement
can be over-regulated at any time.
No warning is produced with the turn signals
activated, given that the Lane Assist system
understands that a lane change is required. Control lamp

Driver assistance systems
Indications on the instrument panel
displ ay Fig. 282
On the instrument panel display: In-
dication on the L ane Assist system displ
ay (ex-
ampl
e 1). Fig. 283
On the instrument panel display: Indi-
cation on the L ane Assist syst
em display (e
x-
ampl

e 2). Status display
Fig. 282  : The system is activ
e, but not
av ail

able, either because the minimum
speed has not been reached or because
the lane lines are not recognised.
Fig. 282 : The system is active and available, both lane lines are recognised.
The steering angle is not being correc-
ted at this moment.

Driving
Lane Assist with lane centring guide
The Lane Centring Guide function is inten-
ded t o keep the v
ehicl
e in the centre of the
lane.
If the driver has a tendency to veer slightly off
centre in the lane, the system adapts to driver
preferences.