Seat Leon 5D 2016 Owner's manual

Driver assistance systems
Front Assist operation may be affected by a
s tr
on
g radar reverse reflection. This may oc-
cur, for example, in a closed car park or due
to the presence of metallic objects (e.g. rails
on the road or sheets used in road works).
The area in front of and around the radar sen-
sor should not be covered with adhesives,
additional or similar headlights, as this may
negatively affect Front Assist operation.
If structural modifications are made to the ve-
hicle, for example, if the suspension is low-
ered or the front spoiler is modified, Front As-
sist operation may be affected. So structural
modifications should only be made by speci-
alised workshops. SEAT recommends visiting
a SEAT dealership for this purpose.
If work is done incorrectly on the front of the
vehicle, the radar sensor could be damaged
or lose its settings, and Front Assist opera-
tion may be affected. So repair work should
only be made by specialised workshops.
SEAT recommends visiting a SEAT dealership
for this purpose. CAUTION
If you have the sensation that the radar sen-
sor is d

amaged or has lost its settings, dis-
connect the Front Assist. This will avoid pos-
sible damage. If this occurs have it adjusted.
● The sensor may become damaged or lose
its settin
gs when knocked, for example, dur- ing a parking manoeuvre. This may compro-
mise the sy
s

tem's efficacy or disconnect it.
● Repairs to the radar sensor require special-
ist
knowledge and special tools. SEAT recom-
mends visiting a SEAT dealership for this pur-
pose.
● Clean away the snow with a brush and the
ice pref
erably with a solvent-free de-icer
spray. Operating the Front Assist monitoring
sys
t

em Fig. 209
On the instrument panel display:
Fr ont
As

sist switched off message. Front Assist is active whenever the ignition is
sw
it
c

hed on.
When the Front Assist is switched off, so too
are the advance warning function (pre warn-
ing) and the distance warning. SEAT recommends leaving the Front Assist al-
way

s switched on. Exceptions ››› page 210,
Switch Front Assist off in the following situa-
tions.
Activating and deactivating Front Assist
With the ignition switched on, the Front As-
sist can be switched on and off as follows:
● Select the corresponding menu option us-
ing the butt
on for the driver assistance sys-
tems ›››
 page 31.
● OR: switch the system on and off in Easy
Connect
using the  button and the
Set
up and
Driv
er a
s
sistance function buttons
› ›
›
 page 27.
When Front Assist is switched off, the instru-
ment panel will inform that it has been
switched off with the following indicator 
››› Fig. 209.
Switching the advance warning function on
or off
The advance warning function may be switch-
ed on and off in the Easy Connect system us-
ing the  button and the
Set
up and
Driv er a
s

sistance function buttons
› ›
›
 page 27.
The system will store the setting for the next
time the ignition is switched on.
SEAT recommends keeping the advance
warning function switched on at all times. »
209
Technical data
Advice
Operation
Emergencies
Safety

Operation
Depending on the infotainment system in-
s t
al
led in the vehicle, the advance warning
function may be adjusted as follows:
● Ready
● Medium
● Delayed
● Deactivated
SEAT r
ecommends driving with the function
in “Medium” mode.
Switching distance warning on and off
If the safe distance with regard to the vehicle
in front is exceeded, the relevant warning will
appear on the instrument panel display
. In this case, increase the safe dis-
tance.
The distance warning may be switched on
and off in the Easy Connect system using
the  button and the
S
ETUP and
Driv er a
s

sistance function buttons
› ›
›
 page 27.
The system will store the setting for the next
time the ignition is switched on.
SEAT recommends keeping the distance
warning switched on at all times. Switch Front Assist off in the following
situation

s In the following situations the Front Assist
Monitorin
g

System should be deactivated
due to the system's limitations ››› :
● When the vehicle is to be towed.
● If the vehicle is on a test bed.
● When the radar sensor is damaged.
● If the radar sensor takes a heavy knock, for
ex amp

le in a rear collision.
● If it intervenes several times unnecessarily.
● If the radar sensor is covered temporarily
with some k ind of

accessory, such as an ad-
ditional headlight or the like.
● When the vehicle is to be loaded on a lorry,
ferry
or train. WARNING
If the Front Assist is not switched off in the
sit uation

s described, serious accidents and
injuries may occur.
● Switch off the Front Assist in critical situa-
tions. System limitations
Front Assist has certain physical limitations
inher
ent in the sy

stem. Thus, in certain cir-
cumstances some of the system's reactions may be inopportune or be delayed from the
driver's s

tandpoint. So pay attention in order
to intervene if necessary.
The following conditions may cause Front As-
sist not to react or to do so too late:
● On taking tight bends.
● Pressing the accelerator all the way down.
● If the Front Assist is switched off or dam-
aged.
● If the ASR h

as been manually disconnec-
ted.
● If the E

SC is controlling.
● If several brake lights of the vehicle or elec-
trically
connected trailer are damaged.
● If the radar sensor is dirty or covered.
● If there are metal objects, e.g. rails on the
roa
d or sheets used in road works.
● If the vehicle is reversing.
● If the vehicle over-accelerates.
● In case of snow or heavy rain.
● In case of narrow vehicles, such as motor-
bike
s.
● Misaligned vehicles.
● Vehicles crossing the other's path.
● Vehicles approaching in the opposite direc-
tion.
210

Driver assistance systems
● Spec
i
al loads and accessories of other ve-
hicles that jut out over the sides, backwards
or over the top.
City Emergency braking function Fig. 210
On the instrument panel display: ad-
v anc
e w

arning message The City emergency braking function is part
of
Fr
ont

Assist and is active whenever the
system is switched on.
Depending on the equipment, the City emer-
gency braking function may be switched on
and off in the Easy Connect system using
the  button and the
S
ETUP and
Driv er a
s

sistance function buttons
› ›
›
 page 27. The City Emergency braking function picks
up, at s

peeds between approximately 4 km/h
(2.5 mph) and 30 km/h (19 mph), the traffic
situation in front of the vehicle.
If the system detects a possible collision with
a vehicle in front of it, the vehicle prepares
for a possible emergency braking ››› .
If the driv
er f

ails to react to a possible colli-
sion, the system may brake the vehicle auto-
matically, by progressively increasing braking
effect driving to reduce speed in the event of
a collision. The system can thus help to re-
duce the consequences of an accident.
Status display
Automatic deceleration by means of the City
Emergency braking function is displayed on
the instrument panel by means of the ad-
vance warning ››› Fig. 210 1)
. WARNING
The smart technology included in the City
Emerg ency

braking function cannot defy the
laws of physics. The driver is always respon-
sible for braking in time.
● Adapt your speed and safe distance to the
vehicl
e in front of you at all times to suit visi-
bility, weather, road and traffic conditions. ●
The City Emer

gency braking function alone
cannot prevent accidents or serious injury.
● In complex driving situations, the City
Emergency
braking function may issue unnec-
essary warnings and intervene inopportunely
in braking, such as in work areas or if there
are metal rails.
● If the operation of the City Emergency brak-
ing fu
nction is impaired, for example, by dirt
or because the radar sensor has lost its set-
tings, the system may issue unnecessary
warnings and intervene inopportunely in the
braking.
● During driving, the City Emergency braking
function doe
s not react to people or animals
or vehicles crossing your path or which ap-
proach you head-on in the same lane. Note
● When the City Emer

gency braking function
causes a braking, the brake pedal is “hard-
er”.
● Automatic interventions on the brakes by
the City Emer
gency braking function may be
interrupted by pressing the clutch, accelera-
tor or moving the wheel.
● The City Emergency braking function can
brake the
vehicle until it stops completely.
However, the brake system does not halt the
vehicle permanently. Use the foot brake! »1)
The symbol on the instrument panels with colour
dis p

lay is in colour. 211
Technical data
Advice
Operation
Emergencies
Safety

Operation
●
If sev er
al inopportune intervenes occur,
switch off the Front Assist and with it the City
Emergency braking function. Take it to a spe-
cialised workshop, SEAT recommends visiting
a SEAT dealership.
● If numerous unnecessary interventions oc-
cur, the C
ity Emergency braking function may
switch off automatically. Pedestrian Monitoring*
1)Fig. 211
On the instrument panel display: 
Adv anc
e w

arning message.  Pedestrian
Monitoring deactivated. The pedestrian monitoring system can help
pr
ev
ent

accidents involving pedestrians or
reduce the consequences of an accident. The system warns of danger of collision, pre-
pare

s the vehicle for emergency braking, as-
sists in the braking and brakes automatically.
If the system detects a possible collision with
a pedestrian, it warns the driver with an
acoustic signal and a message on the dash
panel display ››› Fig. 211.
The pedestrian monitoring system, including
the advance warning, is automatically con-
nected when the ignition is switched on
››› page 167.
SEAT recommends always having the pedes-
trian monitoring system connected. The ex-
ceptions set out for the Front Assist system
are equally valid for the pedestrian monitor-
ing system ››› page 210.
Switching the pedestrian monitoring system
on and off
With the ignition on, the pedestrian monitor-
ing system can be switched on and off as fol-
lows:
● Switch the system on and off in the info-
tainment sy
stem using the  button and
the S
ETUP and
Driv
er a
s
sistance function but-
t on
s
›››
 page 27.
When the pedestrian protection system is
switched off, the dash panel display shows a message indicating this
›››
Fig. 211 . The
pedestrian monitoring system is switched off
with the Front Assist function. WARNING
The technology in the pedestrian monitoring
sys t

em cannot defy the laws of physics and
only works within the system's limits. The
driver is always responsible for braking in
time. If the pedestrian monitoring system is-
sues a warning, brake the vehicle immediate-
ly with the brake pedal or swerve to avoid the
pedestrian, depending on traffic conditions.
● The pedestrian monitoring system alone
cannot av
oid accidents or serious injury.
● In complex driving situations, the pedes-
trian monitorin
g system may issue unneces-
sary warnings and intervene unnecessarily in
braking, such as in main roads with turnings.
● If the operation of the system is impaired,
for ex
ample, because the radar sensor and
camera are covered or have lost their set-
tings, the system may issue unnecessary
warnings and intervene inopportunely in the
braking.
● The driver must always be ready to take
over the c
ontrol of the vehicle. 1)
Depending on the vehicle equipment, pedestrian
monitorin g i

s not available in all countries.
212

Driver assistance systems
Note
● When the v ehic
le is braked via the pedes-
trian monitoring system, the brake pedal be-
comes stiffer.
● Automatic interventions by the pedestrian
monitoring sy
stem on the brakes may be in-
terrupted by pressing the accelerator or mov-
ing the wheel.
● If the pedestrian monitoring system does
not work
as described in this chapter (e.g. if
it intervening unnecessarily several times),
switch if off, contact a specialist workshop
immediately and request to have the system
checked. SEAT recommends visiting a SEAT
dealership for this. Lane Assist system*
Intr oduction 

›› ›

table on page 2 WARNING
The intelligent technology in the Lane Assist
sys t

em cannot change the limits imposed by
the laws of physics and by the very nature of
the system. Careless or uncontrolled use of
the Lane Assist system may cause accidents
and injury. The system is not a replacement
for driver awareness. ●
Alw a

ys adapt your speed and the distance
to the vehicles ahead in line with visibility,
weather conditions, the condition of the road
and the traffic situation.
● Always keep your hands on the steering
wheel so it c
an be turned at any time.
● The Lane Assist system does not detect all
roa
d markings. The road surfaces, road struc-
tures or objects in poor condition can be in-
correctly detected as road markings under
certain circumstances by the Lane Assist sys-
tem. In such situations, switch the Lane As-
sist system off immediately.
● Please observe the indications on the in-
strument p
anel and act as is necessary.
● Always pay attention to the vehicle's sur-
roundin
gs.
● When the area of vision of the camera be-
comes
dirty, covered or is damaged, the Lane
Assist system function can be affected. CAUTION
In order to avoid influencing the operation of
the sys t

em, the following points must be tak-
en into account:
● Regularly clean the area of vision of the
camera and k
eep it in a clean state, without
snow or ice.
● Do not cover the area of vision of the cam-
era.
● Check

that the area of vision of the wind-
scr
een camera is not damaged. Note
● The Lane Ass i

st system has been exclusive-
ly developed for driving on paved roads only.
● If the Lane Assist system does not work as
desc
ribed in this chapter, do not use it and
contact a specialised workshop.
● If there is a fault in the system, have it
check
ed by a specialised workshop. 213
Technical data
Advice
Operation
Emergencies
Safety

Operation
Indications on the display and lamps Fig. 212
On the instrument panel display: In-
dic ation on the Lane As
s
ist system display
(example 1). Fig. 213
On the instrument panel display: In-
dic ation on the Lane As
s

ist system display
(example 2). Status display
The sy s
t

em is active, but not available,
either because the minimum speed has
not been reached or because the lane
lines are not recognised ››› Fig. 212 A.
The system is active and available, both
lane lines are recognised. The steering
angle is not being corrected at this mo-
ment ››› Fig. 212 B.
–
– The system is operational, the highligh-
ted line
A indicates that there was a
ri sk
of

involuntarily crossing the lane
line and that the steering is being adjus-
ted to correct the angle ››› Fig. 213 C.
The two lines A light up simultaneously
when both l ane line
s

are recognised and
the Lane Assist function is active
››› Fig. 213 D.
Control lamps 
Blinks or lights up yellow: Lane Assist
active but not available.
The system can not accurately recognise the lane.
Please see page 215, the Lane Assist system is not
available (the control lamp is lit up yellow). 
Blinks or lights up green:
Lane Assist system active and available.
WARNING
Observe the safety warnings ›››
in Warning
and contr o
l lamps on page 109. –
–
214

Driver assistance systems
Operation Fig. 214
In the windscreen: field of vision of
the Lane As s
i
st system camera. Using the camera located in the windscreen,
the Lane As
s
i

st system detects the possible
lines dividing the lanes. When the vehicle in-
voluntarily approaches a dividing line it has
detected, the system notifies the driver with
a corrective steering movement . This move-
ment 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.
Steering wheel vibration
The following situations can cause vibration
in the steering wheel and require the driver
to take active control of driving:
● When the limits of the very nature of the
syst
em are reached. ●
When the maximum r
otational torque dur-
ing the corrective steering movement is not
enough to keep the vehicle inside the lane.
● When no lane is detected during the correc-
tive st
eering movement.
Switching the Lane Assist system on or off
Through the Easy Connect system
● Press the Easy Connect button  .
● Press the S
ETUP function button.
● Press the function button driv
er a
s
sistance to
open the menu.
OR: thr ough the driving assist
b
utt
on
on the turn signal level*.
The Lane centring guide is activa-
ted/deactivated in the Easy Connect system
using the  button and the
S
ETUP function
b utt
on ›

›› page 110.
Self-deactivation: the Lane Assist system can
be automatically deactivated if there is a sys-
tem malfunction. The control lamp disap-
pears.
Hands-Off Function
● In the absence of steering wheel activity
the syst
em alerts the driver with acoustic sig-
nals and a text message on the dash panel
asking to actively take over the steering.
● If the driver does not react to this, the sys-
tem also al
erts the driver with a little shaking motion through the brakes and, if the vehicle
has

it, activates the Emergency Assist func-
tion ››› page 217.
● In vehicles without Emergency Assist, the
adaptiv
e lane guidance function will be disa-
bled after the corresponding warnings to the
driver.
The lane assist system is active but it is not
available (the control lamp is lit up yellow)
● When driving at speeds below 65 km/h (38
mph).
● When the Lane Assist system does not de-
tect the div
iding lines of the road. For exam-
ple, in the event warnings indicating road
works, and snow, dirt, moisture or reflec-
tions.
● When the radius of a curve is too small.
● When no road markings can be seen.
● When the distance to the next marking to
too gre
at.
● When the system does not detect any clear
and active st
eering movement during a long
period of time.
● Temporarily, in the event of very dynamic
driving s
tyles.
● If a turn signal is activated.
● With the stability control system (ESC) in
Sport
mode or switched off. »
215
Technical data
Advice
Operation
Emergencies
Safety

Operation
Note
● Bef or
e starting a journey, verify that the
field of vision of the camera is not covered
››› Fig. 214.
● Always keep the field of vision of the cam-
era cl
ean. Switching off the Lane Assist system
in the fo
l

lowing situationsDue to the limits of the Lane Assist system,
sw
it
c

h it off in the following situations:
● When more attention is required of the
driver
● When drivin

g in a sporty style
● In unfavourable weather conditions
● On roads in poor condition
● In areas of road works Note
The Lane Assist system deactivates when
drivin g belo

w 60 km/h (37 mph).Traffic Jam Assist
D e
s

cription and operation 

››
›

table on page 2 Traffic Jam Assist helps the driver keep the
car w
ithin its

lane and to move in convoy in
case of traffic congestion or slow traffic.
Traffic Jam Assist is an additional function of
Lane Assist ››› page 213 and combines Lane
Assist functions with Adaptive Cruise Control
(ACC) ››› page 196. Therefore, it is essential
that you read these two chapters carefully
and note the limitations of the systems and
the information about them.
Operation of Traffic Jam Assist
At speeds of below 60 km/h (40 mph), Traffic
Jam Assist can maintain a (temporary) dis-
tance preset by the driver with respect to the
vehicle ahead and help stay within the lane
››› .
T o do thi
s, the sy

stem automatically controls
the acceleration, brakes and steering, and
slows down the vehicle until it stops fully
when behind another vehicle that is stop-
ping. It then automatically moves off again
when the car in front does so.
Traffic Jam Assist is designed only for use on
motorways and wide roads. Therefore, never
use it in city traffic.
Switching Traffic Jam Assist on and off
If Lane Assist is on, ›››
page 213 Traffic Jam
Assist is switched on and off in the infotain-
ment system using the  button and theSETUP and
Driv
er a
s
sistance function buttons
› ›
›
 page 27.
It is activated by switching on Lane Assist
and the lane centring guide in the infotain-
ment system. If the lane centring guide is not
active, the Traffic Jam Assist system is not ac-
tive
Traffic Jam Assist may be disconnected using
the button for driver assistance systems to-
gether with Lane Assist ›››
 page 31.
Technical requirements for using Traffic Jam
Assist
● Lane Assist must be activated ›››
page 213,
Lane Assist system*.
● Adaptive Cruise Control (ACC) must be con-
nected and active ›

›› page 196.
● The selector lever must be in the D/S posi-
tion or in the
Tiptronic selection track.
● The speed must be below 60 km/h
(38 mph).
● The lane centring guide must be active
›››
page 215.
Traffic Jam Assist is not active (the Lane As-
sist control light turns yellow) ● If any of the conditions mentioned on
page 216, T
echnical requirements for using
Traffic Jam Assist are no longer met.
216

Driver assistance systems
● If an
y
of the conditions required for opera-
tion of the Lane Assist are not met
››› page 213.
● If any of the conditions necessary for the
adaptiv
e cruise control (ACC) to work are no
longer fulfilled ››› page 196.
Situations in which Traffic Jam Assist must
be switched off
Due to the limitations of the system, Traffic
Jam Assist must always be switched off in the
following situations:
● When more attention is required by the
driver.
● When driv

ing in a very sporty style.
● In adverse weather conditions, e.g. in case
of sno
w or heavy rain.
● When driving on roads in poor condition.
● In sections with roadworks.
● In city journeys. WARNING
The smart technology incorporated into Traf-
fic Jam As s

ist cannot defy the laws of phys-
ics; it only works within the limits of the sys-
tem. Accidents and severe injury may occur if
Traffic Jam Assist is used negligently or invol-
untarily. The system is not a replacement for
driver awareness.
● Adapt your speed and safe distance to the
vehicl
e in front of you at all times to suit the visibility, weather, road and traffic condi-
tions.
● Do not u

se Traffic Jam Assist in city jour-
neys.
● Do not u

se Traffic Jam Assist if there is poor
vis
ibility, for example, in case of snow, ice,
rain or loose gravel, or on steep or slippery
sections or flooded roads.
● Do not use Traffic Jam Assist offroad or on
roa
ds where the surface is not firm. Traffic
Jam Assist has been designed for use on
paved roads only.
● Traffic Jam Assist does not react to people
or animal
s or vehicles crossing your path or
that approach you head-on down the same
lane.
● If Traffic Jam Assist does not reduce speed
sufficiently
, brake the vehicle immediately by
applying the pedal.
● If the vehicle continues to move when you
wish it
to stop after a driver intervention
prompt, brake the vehicle by applying the
pedal.
● If driver intervention is requested on the
da
sh panel display, immediately resume con-
trol of the vehicle.
● Keep your hands on the wheel at all times
to be re
ady to intervene in the steering at any
time. The driver is always responsible for
keeping the vehicle in its own lane.
● Always be prepared to take charge of driv-
ing (acc
elerating or braking) yourself. Note
● If T

raffic Jam Assist does not work as de-
scribed in this chapter, stop using it and con-
tact a specialised workshop.
● If the system is faulty, take it to a special-
ised work
shop and have it checked. Emergency Assist
De s

cription and operation Emergency Assist detects whether there is in-
activ
ity
b

y the driver and can automatically
keep the car within the lane and stop it alto-
gether if necessary. This way the system can
actively help avoid an accident.
Emergency Assist is an additional function of
Lane Assist ›››
page 213 and combines Lane
Assist functions with Adaptive Cruise Control
(ACC) ›››
page 196. Therefore, it is essential
that you read these two chapters carefully
and note the limitations of the systems and
the information about them.
Operation of Emergency Assist
Emergency Assist detects when the driver
ceases to perform any activity and repeatedly
requests that he/she regain active control of
the vehicle, through the use of optical and
acoustic warnings and by applying the
brakes. »
217
Technical data
Advice
Operation
Emergencies
Safety

Operation
If the driver continues to do nothing, the sys-
t em aut
om
atically takes over the accelerator,
brakes and steering in order to brake the ve-
hicle and keep it in its lane ››› . If the re-
m ainin
g br

aking distance is sufficient, if nec-
essary the system slows down the vehicle un-
til it stops completely and automatically
switches on the electronic parking brake
››› page 172.
When the Emergency Assist is actively adjust-
ing, the hazard warning lights come on
››› page 135 and the vehicle makes slight zig-
zag movements in the lane in order to warn
other drivers.
Switching the Emergency Assist on and off
The Emergency Assist is switched on auto-
matically when the Lane Assist is switched on
››› page 213.
Technical requirements for using the Emer-
gency Assist ● The adaptive cruise control (ACC) must be
switc
hed on ››› page 196.
● The Lane Assist must be switched on
›››
page 213.
● The selector lever must be at the D/S posi-
tion or in the
Tiptronic selection track.
● The system must have detected a lane sep-
aration line on both side
s of the vehicle
››› Fig. 213. The following conditions may cause the
Emergency

Assist not to react or to switch off
automatically:
● If the driver accelerates, brakes or moves
the steerin
g wheel.
● If any of the conditions mentioned in
›››
page 218, Technical requirements for us-
ing the Emergency Assist are not fulfilled.
● If any of the conditions required for opera-
tion of the Lane Ass
ist are not met
››› page 213.
● If any of the conditions necessary for the
adaptiv
e cruise control (ACC) to work are no
longer fulfilled ››› page 196. WARNING
The smart technology incorporated into the
Emerg ency

Assist cannot overcome the limits
imposed by the laws of physics; it only works
within the limits of the system. The driver is
responsible for driving the vehicle.
● Adapt your speed and safe distance to the
vehicl
e in front of you at all times to suit the
visibility, weather, road and traffic condi-
tions.
● Keep your hands on the wheel at all times
to be re
ady to intervene in the steering at any
time.
● The Emergency Assist alone cannot always
avoid acc
idents or serious injuries.
● If the operation of the Emergency Assist is
impaired, f
or example if the radar sensor of the adaptive cruise control (ACC) or the Lane
Ass
i

st camera are covered or have lost their
settings, the system may intervene inoppor-
tunely in braking or in steering.
● The Emergency Assist does not react to
people or anim
al or vehicles crossing your
path or which approach you head-on in the
same lane. WARNING
If the Emergency Assist Intervenes inoppor-
t u nely

, serious accidents and injuries may oc-
cur.
● If the Emergency Assist does not operate
properly, sw
itch off the Lane Assist
››› page 213. Doing so will also switch off the
Emergency Assist.
● Have the system checked by a specialised
workshop
. SEAT recommends visiting a SEAT
dealership for this. Note
● Autom atic

interventions by the Emergency
Assist on the brakes may be interrupted by
pressing the accelerator or brake or by mov-
ing the wheel.
● Hazard warning lights that come on auto-
matica
lly can be switched off by pressing the
accelerator or the break, moving the steering
wheel or pressing the hazard warning light
switch. 218