2020 Seat Leon sensor

Infotainment operation
Limitations during navigation
If the inf ot
ainment system cannot receive da-
ta from GPS satellites, for example, in a tunnel
or in an underground garage, navigation con-
tinues using the vehicle's sensors.
In areas that are not digitised or are only par-
tially digitised on the infotainment memory,
the infotainment system will still attempt to
provide route guidance.
In the case of missing or incomplete naviga-
tion data, it may not be possible to determine
the exact position of the vehicle. This may
mean that navigation is not as precise as usu-
al.
Roads and streets are subject to constant
change (e.g. new roads, road works, roads
closed to traffic, changes to street names
and building numbers). If the navigation data
is obsolete, this may lead to errors or inaccur-
acies during the route guidance.
Managing the navigation map
To allow an optimal view, you can also man-
age the navigation map with additional finger
movements.
Move the map (tip: use your index finger).

Driving
system itself, the rear and side environment of
the v ehicl
e using the rear sensors
››› page 242. It detects moving objects that
approach from behind, such as cars
››› Fig. 193.
If a critical situation is detected when the
door is opened, it will be alerted by an acous-
tic signal on the door speaker of the corre-
sponding side ››› Fig. 194
. Additionally, the
control lamp of the lane departure warning of
the corresponding door will flash. If the door
has already been opened and another road
user has been detected in a critical situation,
the control lamp of the lane departure warn-
ing on the corresponding side will light up
permanently.
The brightness of the door opening warning
indication cannot be adjusted.
When you want to access the vehicle for the
first time, with the doors closed and locked,
the function will be available 3 minutes after
the first opening of any of the doors. The
function will continue to be available as long
as the vehicle has the ignition connected and
is not moving.
After switching off the ignition, the function
will remain available for approximately 3 mi-
nutes. After that time, the control lamps will
light up indicating the deactivation of the
function. WARNING

Braking and parking
Brake assist systems Electronic Stability Control (ESC)
The ESC helps t
o impr
ove safety. It reduces
the tendency to skid and improves the stabili-
ty and roadholding of the vehicle. The ESC
detects critical handling situations, such as
vehicle understeer or oversteer, or wheelspin
on the driving wheels. It stabilises the vehicle
by braking individual wheels or by reducing
the engine torque. The warning lamp will
flash on the instrument panel when the ESC is
intervening !.
The ESC includes the anti-lock brake system
(ABS), the hydraulic brake assist (HBA), the
traction control system (TCS), electronic dif-
ferential lock (EDS), electronic torque control
(XDS) and the tractor-trailer sway mitiga-
tion*.
ESC also helps stabilise the vehicle by
changing the torque.
The TCS can be deactivated when wheel
spin is desirable ››› page 281
.
Anti-lock brake system (ABS)
ABS prevents the wheels from locking up un-
der braking until the vehicle has reached a
virtual standstill. You can continue to steer the
vehicle even when the brakes are on full.
Keep your foot on the brake pedal and do not
pump the brakes. You will feel the brake pedal
pulsate while the ABS is working. If the running gear or brake system is modi-
fied, the eff
ectiv

eness of the ABS could be se-
verely limited.
Hydraulic Brake Assist (HBA)
The brake assist system can reduce the re-
quired braking distance. The braking force is
automatically boosted if you press the brake
pedal quickly in an emergency. You must
keep pressing the brake pedal until the dan-
ger has passed.
Traction control (TCS)
In the event of the wheels spinning, the TCS
reduces the engine torque to adapt to the
road condition. This helps the car to start
moving, accelerate or climb a gradient.
Electronic differential lock (EDL)
When the EDL detects wheelspin, it brakes
the spinning wheel and directs the power to
the other driven wheel. This function is active
up to approximately 100 km/h (62 mph).
To prevent the disc brake of the braked wheel
from overheating, the EDL cuts out automati-
cally if subjected to excessive loads. The ve-
hicle can still be driven. The EDL will switch on
again automatically when the brake has
cooled down. Tractor-trailer sway mitigation*
If the vehicl
e is pulling a trailer, it will control
the following: tractor-trailers tend to sway.
When the swaying of the trailer is felt by the
vehicle and detected by the ESC, it will auto-
matically brake the towing vehicle within the
limits of the system and mitigate the sway.
Tractor-trailer sway mitigation is not available
in all countries ››› page 303
.
Electronic engine torque management
(XDS)
When taking a curve, the driveshaft differen-
tial allows the outer wheel to turn at a higher
speed than the inner wheel. In this way, the
wheel that is turning faster (outer wheel) re-
ceives less drive torque than the inner wheel.
This may mean that in certain situations the
torque delivered to the inner wheel is too
high, causing the wheels to spin. On the other
hand, the outer wheel is receiving a lower
drive torque than it could transmit. This can
cause a loss of grip on the drive axle, in this
case the front axle, which results in under-
steer or “lengthening” of the trajectory.
The XDS can detect and correct this effect
via the sensors and signals of the ESC.
Via the ESC, the XDS will brake the inside
wheel and counter the excess driving torque
of that wheel. This means that the requested
trajectory is much more precise. »
279

Help with parking and manoeuvring
WARNING
The technology used in the park assist sys-
t em inv
olves a series of limitations inherent
in the actual system and in the use of ultra-
sonic sensors. The use of Park Assist should
never tempt you to take any risk that may
compromise safety. The system is not a re-
placement for driver awareness.

Help with parking and manoeuvring
Visual indication segments Fig. 203
Parking aid view on the Infotainment
syst em displ
ay. The optical indication of the segments works
as f
oll

ows:
Grey segments: the obstacle is more
than approx. 30 cm away from the path
or in the direction opposite to travel.
They are also displayed when the elec-
tronic parking brake is activated.
Yellow segments: the obstacles lie on
the vehicle’s path and are at a distance
of less than approx. 30 cm away.
Red segments: obstacles are less than
approx. 30 cm away.
A wake will indicate the anticipated forward
or backward trajectory, depending on the en-
gaged gear. –
–
– If an obstacle is located in the vehicle’s way,
the corresponding audibl

e warning will
sound.
When the penultimate segment is displayed,
the vehicle has reached the collision zone. In
the collision zone, the obstacles are repre-
sented in red (including those out of the
path). Stop the vehicle! ››› in Introduction
on page 290, ››

› in Introduction on
page 290 !
Setting the indications and audio
signal s The indications and acoustic signals are set
in the Inf
ot

ainment system: function button 
> Driver assistance> Parking aid: Setup
Automatic activa-
tion On/off
Front volume* Volume in the front and rear
area.
R

ear volume* Volume in the rear area.
Adjust volume When the parking aid is
s
wit

ched on, the volume of
the audio source will be re-
duced, depending on the se-
lected option. Error messages
If a an error or fault message appears on the
instrument clust
er in P

ark Assist, there is a
fault.
If the fault doesn't disappear before discon-
necting the ignition, it will not be indicated
next time the parking aid is connected.
If a rear sensor is faulty, only the obstacles in
the areas A and
B are displayed
› ›

› Fig. 202. If a front sensor is faulty, only the
obstacles in the areas C and
D will be dis-
pl ayed. Symbol

Practical tips
Energy management Optimisation of the st ar
ting ca-
pacity The power management controls the distri-
bution of el
ectrical ener

gy and thus helps to
ensure that there is always enough power
available to start the engine.
If a vehicle with a conventional electrical sys-
tem is left parked for a long time, the battery
will gradually lose its charge because certain
electrical devices, such as the electronic
gearbox lock continues to draw current even
when the ignition is off. In some cases there
may not be enough power available to start
the engine.
Your vehicle is equipped with an intelligent
power management system to control the
distribution of electrical energy. This signifi-
cantly improves reliability when starting the
engine, and also prolongs the useful life of the
battery.
The main functions incorporated in the power
management system are battery diagnosis,
residual current management and dynam-
ic power management.
Battery diagnosis
The battery diagnosis function constantly
registers the condition of the battery. Sensors detect the battery voltage, battery current
and batt
ery t

emperature. This enables the
system to calculate the current power level
and charge condition of the battery.
Residual current management
The residual current management reduces
power consumption while the vehicle is
parked. It controls the supply of power to the
various electrical devices while the ignition is
switched off. The system takes the battery di-
agnosis data into consideration.
Depending on the power level of the battery,
switch off the individual electrical devices
one after the other to prevent the battery
from losing too much charge and to ensure
that the engine can be started reliably.
Dynamic power management
While the vehicle is moving, this function dis-
tributes the available power to the various
electrical devices and systems according to
their requirements. The power management
ensures that on-board systems do not con-
sume more electrical power than the alterna-
tor can supply, and thus maintains the maxi-
mum possible battery power level. Note

Information for the user
Radioelectrical
equipment fitt
ed
in the v
ehicle Addresses of the
manufact
urers
Radar sensors for as-
sist ance syst

ems ADC Automotive Distance
Contr
ol Syst

ems GmbH
Peter-Dornier-Stra

Index
menu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
r equir
ements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190
special characteristics . . . . . . . . . . . . . . . . . . . . . 191
Applications (apps) . . . . . . . . . . . . . . . . . . . . . . . . .190
Aspects to think about before starting the ve- hicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Assistance systems adaptive cruise control . . . . . . . . . . . . . . . . . . . 253
assisted parting system (Park Assist) . . . . . . 282
Auto Hold function . . . . . . . . . . . . . . . . . . . . . . . . . 277
connecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
cruise control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 245
disconnecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
door opening warning (Exit Assist) . . . . . . . . . 271
driver alert system . . . . . . . . . . . . . . . . . . . . . . . . . . 77
driving assist (Travel Assist) . . . . . . . . . . . . . . . 263
Emergency Assist . . . . . . . . . . . . . . . . . . . . . . . . . 265
emergency braking (Front Assist) . . . . . . . . . 249
front camera . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
front radar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 242
general notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
Lane Assist . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 261
lane departure warning (Side Assist) . . . . . . 267
parking aid Plus . . . . . . . . . . . . . . . . . . . . . . . . . . . 291
PreCrash system . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
proactive speed adjustment . . . . . . . . . . . . . . 259
rear camera . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 244
rear cross traffic alert (RCTA) . . . . . . . . . 267, 270
rear parking aid . . . . . . . . . . . . . . . . . . . . . . . . . . . 294
rear radar . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 243
road sign detection system messages . . . . . . 78
safety advice . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
speed limiter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 246
system limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 241
Tyre pressure monitor indicator . . . . . . . . . . . 352 Tyre pressure monitoring . . . . . . . . . . . . . . . . . . 352
ultrasound sensors . . . . . . . . . . . . . . . . . . . . . . . .
244
Assisted start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Audible warning control and warning lamps . . . . . . . . . . . . . . . . . 89
lights . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120
unbuckled seat belt . . . . . . . . . . . . . . . . . . . . . . . . . 18
Auto Hold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 277
Auto Hold Function . . . . . . . . . . . . . . . . . . . . . . . . . . 277
Auto Lock (central locking) . . . . . . . . . . . . . . . . . . . 101
Automatic car wash . . . . . . . . . . . . . . . . . . . . . . . . 360 disconnecting the Auto Hold function . . . . . . 277
Automatic dipped beam headlight control . . . 121
Automatic gearbox . . . . . . . . . . . . . . . . . . . . . . . . . . 229 control lamp . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229
downhill assistant . . . . . . . . . . . . . . . . . . . . . . . . . 233
driving tips . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 231
kick-down . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
launch-control program . . . . . . . . . . . . . . . . . . 233
operating fault . . . . . . . . . . . . . . . . . . . . . . . . . . . . 232
parking lock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 230
selector lever lock . . . . . . . . . . . . . . . . . . . . . . . . 230
selector lever positions . . . . . . . . . . . . . . . . . . . . 229
steering wheel with shift paddles . . . . . . . . . . 231
tiptronic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 229, 231
towing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57
Auxiliary heating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
activate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
connecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
disconnecting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 166
electricity consumers . . . . . . . . . . . . . . . . . . . . . 168
programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 168
radio-operated remote control . . . . . . . . . . . . 167 remote control range . . . . . . . . . . . . . . . . . . . . . . 167
special charact
eristics . . . . . . . . . . . . . . . 166, 168
usage instructions . . . . . . . . . . . . . . . . . . . . . . . . . 168
Average fuel consumption . . . . . . . . . . . . . . . . . . . . 70
B Backrest of the rear seat folding . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
raise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Bag hooks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147, 154
Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 100 change on the remote control (independ-ent heating) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167
Battery Manager Menu . . . . . . . . . . . . . . . . . . . . . . 311
Before starting the vehicle . . . . . . . . . . . . . . . . . . . . 14
Belt tightening . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
Bicycle carrier fitting onto the coverable tow hook . . . . . . . 305
max. load rating . . . . . . . . . . . . . . . . . . . . . . . . . . 305
Biodiesel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 324
Blown bulbs change a bulb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Bluetooth® . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183 profiles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 183
Bonnet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 328, 331
opening and closing . . . . . . . . . . . . . . . . . . . . . . 329
Brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 337
Brakes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274 brake fluid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 337
brake servo . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 274
braking assistant . . . . . . . . . . . . . . . . . . . . . . . . . . 279
electronic parking brake . . . . . . . . . . . . . . . . . . 275
emergency brake function . . . . . . . . . . . . . . . . 276
new brake pads . . . . . . . . . . . . . . . . . . . . . . . . . . . 274
Braking assistant . . . . . . . . . . . . . . . . . . . . . . . . . . . . 279
382