sensor Seat Leon 5D 2016 User Guide

Operation
In vehicles that do not have the correspond-
in g menu, thi
s
function can be deactivated in
a specialised workshop. WARNING
Improper or lack of use of the turn signals, or
for g

etting to deactivate them can confuse
other road users. This could result in a seri-
ous accident.
● Always give warning when you are going to
chan
ge lane, overtake or when turning, acti-
vating the turn signal in good time.
● As soon as you have finished changing
lane, ov
ertaking or turning, switch the turn
signal off. WARNING
Incorrect use of the headlights may cause ac-
cident s

and serious injury, as the main beam
may distract or dazzle other drivers. Note
● If the c on

venience turn signals are operat-
ing (three flashes) and the other convenience
turn signals are switched on, the active part
stops flashing and only flashes once in the
new part selected.
● The turn signal only works when the igni-
tion is sw
itched on. The hazard warning
lights also work when the ignition is switch-
ed off. ●
If a tr ai

ler turn signal malfunctions, the
control lamp will stop flashing (trailer turn
signals) and the vehicle turn signal will flash
at double speed.
● The main beam headligh
ts can only be
switched on if the dipped beam headlights
are already on.
● In cold or damp weather conditions, the
headlight
s, tail lights and turn signals may
mist up inside temporarily. This is normal and
in no way effects the useful life of the vehicle
lighting system. Automatic dipped beam control


* The automatic dipped beam control is merely
int
ended a
s

an aid and is not able to recog-
nise all driving situations.
When the light switch is in position , the
vehicle lights and the instrument panel and
switch lighting switch on and off automatical-
ly in the following situations ››› in Daytime
ru nnin
g light

s on page 131:
Automatic switching
onAutomatic switching
off
The photo sensor detects
darkness, for example,
when driving through a
tunnel.When adequate lighting is
detected.
Automatic switching
onAutomatic switching
off
The rain sensor detects
rain and activates the
windscreen wipers.When the windscreen wip-
ers have been inactive for
a few minutes. WARNING
If the road is not well lit and other road users
cannot see the

vehicle well enough or at all,
accidents may occur.
● The automatic dipped beam control ( )
only sw
itches on the dipped beam when
there are no changes in brightness, and not,
for example when it is foggy. Main beam assist*


››
›

table on page 2
Main beam assist (Light Assist)
The main beam assist acts within the limits
of the system and depending on environmen-
tal and traffic conditions. Once switched on,
the system is activated as of a speed of
about 60 km/h (37 mph) and is deactivated
below about 30 km/h (18 mph) ››› .
When the sy s
t

em is activated and the camera
detects other vehicles that may be dazzled,
the main beam is automatically switched off.
Otherwise, the main beam is automatically
switched on.
132

Operation
Fog lights Fig. 138
Dash panel: light control. The warning lamps
 or  also sho
w , on the
light switch or instrument panel, when the
fog lights are on.
● Switching on front fog lights* : pul
l the
light switch to the first point ››› Fig. 138 1 ,
fr om po
s
itions ,  or .
● Switching on the rear fog light : com-
pl

etely pull the light switch 2 from position
,  or  .
● To sw
itch off the fog lights, press the light
switc
h or turn it to position . Note
The rear fog light can dazzle drivers behind
you. Y

ou should use the rear fog light only
when visibility is very poor. For this reason,
when you exceed approximately 60 km/h (38
mph), a warning will appear on the instru-
ment panel: Turn off the fog light! . Cornering lights*
1) When turning slowly or on very tight bends,
the c
ornerin
g lights

are activated automati-
cally. The cornering lights may be integrated
in the fog lights and are switched on only at
speeds of less than 40 km/h (25 mph).
When reverse gear is engaged, the cornering
lights on both sides of the vehicle switch on,
in order to better illuminate the area for park-
ing.
Function “Coming home” This function may be connected/disconnec-
t
ed thr
ough the r

adio menu. The “Coming
Home” and/or “Leaving Home” delay time
may also be set (default: 30 sec).
Vehicle with
halogen
headlightsIn the “Coming Home” function, the day-
time running lights (DRL), the rear side
lights and the licence plate lights are
turned on.
Vehicle with
full-LED
headlightsIn the “Coming Home” function, the dip-
ped beams and the daytime running
lights (DRL), the rear side lights and the
licence plate lights are switched on. Automatic* activation of “Coming Home”
For
v

ehicles with a light and rain sensor (rota-
ry light switch in position ).
● Switch off the engine and remove the key
from the ignition w ith the r

otary light switch
in position  ›››
 page 24.
● The automatic “Coming Home” function is
only activ
e when the light sensor detects
darkness.
● When the car door is opened, the “Coming
Home” lighting come
s on.
Manual “Coming Home” activation
For vehicles with a light and rain sensor (rota-
ry light switch without position ).
● Switch off the engine and remove the key
from the ignition.
● Activ

ate the headlight flashers for approxi-
mately
1 second. 1)
This function is not available on vehicles equipped
with f u

ll-LED headlights.
134

Lights and visibility
● Activ
at
ed for any position of the rotary light
switch.
● When the car door is opened, the “Coming
Home” lighting come
s on. The headlights are
turned off 60 seconds after the vehicle door
is opened.
Deactivation
● If no door has been closed, they go out au-
tomatic
ally after 60 seconds.
● After the last door has been closed, the
headlights
will be switched off after the
“Coming Home” delay (as established in the
radio menu) has elapsed.
● On turning the light switch to position 
›››
 page 24.
● When the ignition is switched on (when
star
ting the engine).
Function “Leaving Home” The “Leaving Home” function is only availa-
b
l
e f

or vehicles with a light and rain sensor
(rotary light switch in position ).
This function may be connected/disconnec-
ted through the radio menu. The “Leaving
Home” function switch-off delay may also be
set (default: 30 sec).
Vehicle with
halogen
headlightsIn the “Leaving Home” function, the day-
time running lights (DRL), the rear side
lights and the licence plate lights are
switched on.
Vehicle with
full-LED
headlightsIn the “Leaving Home” function, the dip-
ped beams, the daytime running lights
(DRL), the rear side lights and the li-
cence plate lights are switched on. Activation
● When the vehicle is unlocked using the re-
mote c ontr

ol.
● The “Leaving Home” function is only activa-
ted when the r ot

ary light switch is in position
 and the light sensor detects darkness.
Deactivation
● When the “Leaving Home” delay period
ends (def
ault: 30 sec).
● When the vehicle is locked using the re-
mote contr
ol.
● When the light control is switched into a
position other th
an .
● With the ignition is switched on. Hazard warning lights
 Fig. 139
Dash panel: switch for hazard warn-
in g lights. Read the additional information carefully
› ›
›

 page 25
The hazard warning lights are used to draw
the attention of other road users to your vehi-
cle in emergencies.
If your vehicle breaks down:
1. Park your vehicle at a safe distance from movin
g traffic.
2. Press the button to switch on the hazard warning lights
››› .
3. Switch the ignition off.
4. Apply the handbrake.
5. For a manual gearbox, engage 1st gear; for an aut
om

atic gearbox, move the gear
lever to P. »
135
Technical data
Advice
Operation
Emergencies
Safety

Operation
Windscreen wiper functionsWindscreen wiper performance in different sit-
uations
If the vehicle is at a
standstillThe activated position provision-
ally changes to the previous posi-
tion.
During automatic
wipe
The air conditioner comes on for
approximately 30 seconds in air
recirculation mode to prevent the
smell of the windscreen washer
fluid entering the inside the vehi-
cle.
For the interval wipe
Intervals between wipes depend
on the vehicle's speed. The high-
er the vehicle speed the shorter
the intervals. Heated windscreen washer jets
The he
atin
g on

ly thaws the frozen jets, it
does not thaw the water in the washer hoses.
When the ignition is switched on the heated
windscreen washer jets automatically adjust
the heat depending on the ambient tempera-
ture.
Headlight wash/wipe system
The headlight washers/wipers clean the
headlight lenses.
After the ignition is switched on, the first and
every fifth time the windscreen washer is
switched on, the headlights are also washed. Therefore, the windscreen wiper lever should
be pul

led towards the steering wheel when
the dipped beam or main beam are on. Any
incrusted dirt (such as insects) should be
cleaned regularly (e.g. when refuelling).
To ensure the headlight washers work cor-
rectly in winter, any snow which has got into
the bumper jet supports should be cleaned
away. If necessary, remove snow with an anti-
icing spray. Note
The wiper will try to wipe away any obstacles
that ar

e on the windscreen. The wiper will
stop moving if the obstacle blocks its path.
Remove the obstacle and switch the wiper
back on again. Rain sensor*
Fig. 143
Windscreen wiper lever: adjusting
the r ain sen
sor A Fig. 144
Rain sensor sensitive surface The rain sensor controls the frequency of the
w
ind
s
creen wiper intervals, depending on
the amount of rain ››› . The sensitivity of the
r ain sen
sor c

an be adjusted manually. Man-
ual wipe ››› page 139.
Move the lever to the required position
››› Fig. 143:
Rain sensor off.
Rain sensor on; automatic wipe if neces-
sary.
Setting sensitivity level of rain sensor
– Set control to the right: highly sensi-
tive.
– Set control to the left: less sensitive.
When the ignition is switched off and then
back on, the rain sensor stays on and starts
operating again when the windscreen wipers
are in position 1 and the vehicle is travel-
lin g at
mor

e than 16 km/h (10 mph).
0 1
A
140

Lights and visibility
Rain sensor modified behaviour
P o
s
sible causes of faults and mistaken read-
ings on the sensitive surface ››› Fig. 144 of
the rain sensor include:
● Damaged blades: a film of water on the
damag
ed blades may lengthen the activation
time, reduce the washing intervals or result
in a fast and continuous wipe.
● Insects: insects on the sensor may trigger
the winds
creen wiper.
● Salt on roads: in winter, salt spread in the
roa
ds may cause an extra long wipe when the
windscreen is almost dry.
● Dirt: dry dust, wax, coating on glass (Lotus
effect) or trac
es of detergent (car wash) may
reduce the effectiveness of the rain sensor or
make it react more slowly, later or not at all.
● Cracked windscreen: the impact of a stone
wil
l trigger a single wipe cycle with the rain
sensor on. Next the rain sensor detects the
reduction in the sensitive surface area and
adapts accordingly. The behaviour of the sen-
sor will vary with the size of the damage
caused by the stone. WARNING
The rain sensor may not detect enough rain
to sw it

ch on the wipers.
● If necessary, switch on the wipers manually
when water on the w
indscreen obstructs visi-
bility. Note
● Cle

an the sensitive surface of the rain sen-
sor regularly and check the blades for dam-
age ››› Fig. 144 (arrow).
● To remove wax and coatings, we recom-
mend a window c
leaner containing alcohol. Mirror
Anti-dazz l

e rear vision mirrors Your vehicle is fitted with an interior rear vi-
s
ion mirr
or w

ith a manual or automatic* con-
trol for anti-dazzle position.
Interior rear vision mirror with manual set-
ting for anti-dazzle position
– Position the small lever of the lower edge
of the mirror t

o face towards the rear. WARNING
In the event that an automatic anti-dazzle
re ar

vision mirror breaks, an electrolyte fluid
may leak. This could cause irritation to the
skin, eyes and respiratory organs. If you
come into contact with this liquid, it must be
rinsed with large quantities of water. If neces-
sary, get medial help. CAUTION
In the event that an automatic anti-dazzle
re ar

vision mirror breaks, an electrolyte fluid
may leak. This liquid attacks plastic surfaces.
Clean it with a wet sponge as soon as possi-
ble. Note
● If the light inc

ident in the interior rear vi-
sion mirror is obstructed (e.g. with the sun
blind*), the anti-dazzle rear vision mirror with
automatic setting will not operate perfectly.
● When the interior lights are on or reverse
gear en
gaged, the mirrors do not darken with
automatic adjustment for anti-dazzle posi-
tion. 141
Technical data
Advice
Operation
Emergencies
Safety

Driving
Functioning mode of automatic air recircula-
tion (air c onditionin
g menu)
W
ith the automatic air recirculation mode ac-
tivated, the entry of fresh air into the cabin
interior is enabled. If the system detects a
high concentration of hazardous substances
in the ambient air, air recirculation mode is
switched on automatically. When the level of
impurities drops to within a normal range, re-
circulation mode is switched off.
The system is unable to detect unpleasant
smells.
The air recirculation will not connect auto-
matically in versions without humidity sensor
and in the following external conditions:
● The outside temperature is lower than +3°C
(+38°F).
● The cooling system is switched off and the
outside temper
ature is below +10°C (+50°F).
● The cooling system is switched off, the out-
side temper
ature is below +15°C (+59°F) and
the windscreen wipers are switched on.
Activation/deactivation of automatic air recir-
culation is done in the air conditioner menu,
under Configuration. WARNING
Observe the safety warnings ›››
in Intro-
duction on pag e 163
. ●
If the c oo

ling system is switched off and air
recirculation mode switched on, the windows
can mist over very quickly, considerably limit-
ing visibility.
● Switch air recirculation mode off when it is
not requir
ed. CAUTION
Do not smoke when air recirculation is
sw itc

hed on in vehicles with an air condition-
er. The smoke taken in could lie on the cool-
ing system vaporiser and on the activated
charcoal cartridge of the dust and pollen fil-
ter, leading to a permanently unpleasant
smell. Note
Climatronic: air recirculation mode is activa-
ted t o pr

event exhaust gas or unpleasant
odours from entering the vehicle interior
when it is in reverse and while the automatic
windscreen wiper is working. Driving
Ignition loc k
Sw it

ching the ignition on and starting
the engine with the key Fig. 186
Ignition key positions. Read the additional information carefully
› ›
›

 page 24
Diesel engines can take a few seconds longer
than usual to start on cold days. Therefore
the clutch pedal (manual gearbox) or the
brake pedal (automatic gearbox) must re-
main pressed until the engine starts up. Dur-
ing preheating, the warning lamp  remains
lit.
The preheating time depends on the coolant
and exterior temperatures. With the engine at
operating temperature, or at outside temper-
atures above +8°C, the warning lamp  will »
167
Technical data
Advice
Operation
Emergencies
Safety

Driving
To prevent the disc brake of the braked wheel
fr om o
v
erheating, 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 vehicle 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.
Electronic torque management (XDS)
When taking a curve, the driveshaft differen-
tial mechanism allows the outer wheel to turn
at a higher speed than the inner wheel. In
this way, the wheel that is turning faster (out-
er wheel) receives 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 causes an overall loss of lateral
grip on the front axle, resulting in understeer
or “lengthening” of the trajectory.
The XDS system 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 cou
nter the excess driving torque
of that wheel. This means that the driver's
desired trajectory is much more precise.
The XDS system works in combination with
the ESC and is always active, even when ASR
traction control is disconnected, or the ESC in
Sport mode or disconnected.
Multi-collision brake
In an accident, the multi-collision brake can
help the driver by braking to avoid the risk of
skidding during the accident, which could
lead to further collisions.
The multi-collision brake works for front, side
or rear accidents, when the airbag control
unit records its activation level and the acci-
dent takes place at a speed of over 10 km/h
(6 mph). The ESC automatically brakes the
vehicle, as long as the accident has not dam-
aged the ESC, the brake hydraulics or the on-
board network
The following actions control automatic brak-
ing during the accident:
● When the driver presses the accelerator,
the automatic
braking does not take place.
● When the braking pressure through press-
ing the brak
e pedal is greater than the sys-
tem’s braking pressure the vehicle will brake
automatically. ●
Multi-c
ollision braking will not be available
if ESC is malfunctioning. WARNING
● The ESC, ABS, ASR, EDL, el ectr

onic self-
locking differential or selective torque control
systems cannot exceed the limits imposed by
the laws of physics. Always bear this in mind,
especially on wet or slippery roads. If you no-
tice the systems cutting in, you should re-
duce your speed immediately to suit the road
and traffic conditions. Do not be encouraged
to take risks by the presence of more safety
systems. If you do, an accident may occur.
● Please remember that the accident risk al-
way
s increases if you drive fast, especially in
corners or on a slippery road, or if you follow
too close behind the vehicle in front of you.
The ESC, ABS, brake assist, EDL, electronic
self-locking and selective torque control sys-
tems cannot prevent accidents: risk of acci-
dents!
● Accelerate with caution on slippery surfa-
ces
(for example, icy or snow-covered). De-
spite the control systems, the driven wheels
could spin, affecting the stability of the vehi-
cle: risk of accident! Note
● The ABS and ASR w i

ll only operate correctly
if the four wheels have identical tyres. Any
differences in the rolling radius of the tyres
can cause the system to reduce engine power
when this is not desired. » 177
Technical data
Advice
Operation
Emergencies
Safety

Operation
WARNING
Use of the cruise control could cause acci-
dents and sev
ere injuries if it is not possible
to drive at a constant speed maintaining the
safety distance.
● Do not use the cruise control in heavy traf-
fic, if the dis
tance from the vehicle in front is
insufficient, on steep roads, with several
bends or in slippery circumstances (snow,
ice, rain or loose gravel), or on flooded roads.
● Never use the CCS when driving off-road or
on unpav
ed roads.
● Always adapt your speed and the distance
to the v
ehicles ahead in line with visibility,
weather conditions, the condition of the road
and the traffic situation.
● To avoid unexpected operation of the cruise
contro
l system, turn it off every time you fin-
ish using it.
● It is dangerous to use a set speed which is
too high for the pr
evailing road, traffic or
weather conditions.
● When travelling down hills, the CCS cannot
maintain a c
onstant speed. The vehicle tends
to accelerate under its own weight. Select a
lower gear or use the foot brake to slow the
vehicle. WARNING
Observe the safety warnings ›››
in Warning
and contr o
l lamps on page 109. Operating the cruise control system*
Read the additional information carefully
›› ›

 page 39
The value indicated in the table in brackets
(in mph, miles per hour) only refers to instru-
ment panels with indications in miles.
Changing gear in CCS mode
The CCS decelerates as soon as the clutch
pedal is pressed, intervening again automati-
cally after a gear is engaged.
Travelling down hills with the CCS
When travelling down hills the CCS cannot
maintain a constant speed. Slow the vehicle
down using the brake pedal and reduce
gears if required.
Automatic off
The cruise control system (CCS) is switched
off automatically or temporarily:
● If the system detects a fault that could af-
fect the w

orking order of the CCS.
● If you press and maintain the accelerator
pedal f
or a certain time, driving faster than
the stored speed.
● If the dynamic driving control systems in-
terv
ene (e.g. ASR or ESC).
● If the airbag is triggered. Adaptive Cruise Control ACC*
Introduction Fig. 197
Detection area. 

›› ›

table on page 2
The adaptive cruise control (ACC) is an exten-
sion of the normal cruise control system
(CCS) ››› .
The A C
C

function allows the driver to estab-
lish a cruise speed of between 30 and 210
km/h (18 and 150 mph), as well as the tem-
porary distance required with regard to the
vehicle in front. The ACC function will adapt
the vehicle's cruise speed at all times, main-
taining a safe distance with the vehicle in
front.
The ACC function is based on a radar sensor
that can measure the distance to the vehicles
in front.
196

Driver assistance systems
If the vehicle is equipped with automatic
g e
arbo
x, the ACC can brake the vehicle until
it stops completely if a vehicle in front of it
stops.
Driver intervention prompt
During driving, the ACC is subject to certain
limitations inherent in the system. In other
words, in certain circumstances the driver will
have to adjust speed him or herself, as well
as the distance from other vehicles.
In this case, the instrument panel screen will
warn you to intervene by applying the brake
and a warning tone will be heard
››› page 198. WARNING
The intelligent technology in the ACC cannot
ov er

come the system's inherent limitations
or change the laws of physics. If used negli-
gently or involuntarily, it may cause serious
accidents and injuries. The system is not a re-
placement for driver awareness.
● 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.
● Do not use the ACC when visibility is bad,
on steep r
oads, with several bends or in slip-
pery circumstances such as snow, ice, rain or
loose gravel, or on flooded roads.
● Never use the ACC when driving off-road or
on unpav
ed roads. The ACC has been de-
signed for use on paved roads only. ●
The AC C

does not react on approaching a
fixed obstacle, such as the tail of a traffic
jam, a damaged vehicle or a vehicle stopped
at the traffic lights.
● The ACC only reacts to people if a pedes-
trian monitorin
g system is available. In addi-
tion, the system does not react to animals or
vehicles crossing your path or approaching
head-on down the same lane.
● If the ACC does not reduce speed sufficient-
ly, brak
e the vehicle immediately by applying
the pedal.
● If you are driving using the spare wheel,
the ACC
system could automatically switch
off during the journey. Switch off the system
when starting off.
● If the vehicle continues to move involuntar-
ily af
ter a driver intervention prompt, brake
the vehicle by applying the pedal.
● If the dash panel displays a driv
er interven-
tion prompt, adjust the distance yourself.
● The driver should be ready to accelerate or
brake b
y him/herself at all times. CAUTION
If you have the sensation that the radar sen-
sor is d

amaged, disconnect the ACC. This will
avoid possible damage. If this occurs have it
adjusted.
● Repairs to the radar sensor require special-
ist
knowledge and special tools. SEAT recom-
mends visiting a SEAT dealership for this pur-
pose. Note
● If the A C

C system does not work as descri-
bed in this chapter, do not use it until it has
been checked by a specialised workshop.
SEAT recommends visiting a SEAT dealership
for this purpose.
● Maximum speed with the ACC activated is
limited to 210 km/h (150 mph).
● When the A

CC is switched on, strange
noises
may be heard during automatic brak-
ing cause by the braking system. 197
Technical data
Advice
Operation
Emergencies
Safety

Operation
Indications on the display, warning
and c ontr
o
l lampsFig. 198
On the instrument panel display: (A)
A C
C

temporarily inactive, vehicle detected in
front, temporary distance adjusted. (B) ACC
active, vehicle detected in front, temporary
distance adjusted. Status display
Indic
ation
s

on the display ››› Fig. 198:
Vehicle in front, the ACC is inactive.
1 Distance margin selected, the ACC is in-
activ
e.
V ehic

le detected in front. The ACC is ac-
tive.
Adjustment of the temporary distance
from the vehicle in front with a program-
med speed.
Temporary distance adjustment from the
vehicle in front with a programmed
speed.
Warning and control lamps
››› in Warning and control lamps on
p ag
e 109

. 
The speed reduction by the ACC to
maintain the distance from the vehi-
cle in front is not sufficient.
Brake! apply the foot brake! Driver intervention prompt.

The ACC is not currently available.
a)
With the vehicle stationary, switch off the engine and
start it up again. Check the radar sensor visually for dirt,
ice or knocks. If it is still unavailable, refer to a special-
ised workshop to have the system inspected.
a)
The symbol on the instrument panels with colour display is in
colour.
2 3
4
5 The ACC is active.
No vehicle is detected in front. The programmed speed
remains constant.

If the symbol is white: the ACC is ac-
tive.
A vehicle in front has been detected. The ACC adjusts
speed and distance from the vehicle in front.

If the symbol is grey: the ACC is not
active.
The system is switched on, but is not adjusting.

It lights up green
The ACC is active.
Some warning and control lamps will light up
briefly
when the ignition i
s

switched on to
check certain functions. They will switch off
after a few seconds. WARNING
Observe the safety warnings ›››
in Warning
and contr o
l lamps on page 109. Note
When the ACC is connected, the indications
on the ins trument

panel screen may be con-
cealed by warnings from other functions,
such as an incoming call. 198