2012 Seat Leon 5D warning light

112Lights and visibility
Switching the main beam assist on and off
FunctionAction
Activate: 
– Switch the ignition on and turn the light switch to position
.
– From the base position, move the main beam and turn signal
lever forwards ⇒ page 107. When the warning lamp  is dis-
played on the instrument panel display, the main beam assist is
switched on.
Deacti- vate:
– Switch off the ignition.
– OR: Turn the light switch to a different position to 
⇒ page 108.
– OR: with main beam on, move the main beam and turn signal
lever backwards.
– OR: Move the main beam and turn signal lever forwards to
manually switch main beam on. The main beam assist will then
be deactivated.
Malfunctions
The following conditions may prevent the main beam headlight control from
turning off the headlights in time or from turning off altogether:
● In poorly lit towns with highly reflective signs.
● Other insufficiently lit road users (such as pedestrians or cyclists).
● On tight bends and steep slopes (bumps) and when oncoming vehicles
are partially obscured.
● When the drivers of other oncoming vehicles (such as a truck) can see
over a guard rail in the centre of the road.
● If the camera is damaged or the power supply is cut off.
● In fog, snow and heavy rain.
● With dust and sand turbulence.
● With loose gravel in the field of vision of the camera.
● When the field of vision of the camera is misted up, dirty or covered by
stickers, snow, ice...
WARNING
The convenience features of the main beam assist should not encourage
the taking of risks. The system is not a replacement for driver concentra-
tion.
● You are always in control of the main beam and adapting it to the
light, visibility and traffic conditions.
● It is possible that the main beam headlight control does not recog-
nise all driving situations and is limited under certain circumstances.
● When the field of vision of the camera is dirty, covered or damaged,
operation of the main beam control may be affected. This also applies
when changes are made to the vehicle lighting system, for example, if
additional headlights are installed.
CAUTION
To avoid affecting the operation of the system, take the following points in-
to consideration:
● Clean the field of vision of the camera regularly and make sure it is free
of snow and ice.
● Do not cover the field of vision of the camera.
● Check that the windscreen is not damaged in the area of the field of vi-
sion of the camera.
Note
Main beam and headlight flasher can be turned on and off manually at any
time with the turn signal and main beam lever ⇒ page 107. 
Adjusting the headlights
The light beam of the dipped beam lights is asymmetric: the side of the
road on which you are driving is lit more intensely. 

114Lights and visibility
Headlight range control, lighting of the instrument panel
and controls
Fig. 62 Next to the
steering wheel: Head-
light range control
Lighting of the instrument panel and controls*
Depending on the model, lighting of the instrument panel and controls can
be adjusted in the Easy Connect system, using the button 
and the func-
tion button SETUP ⇒ page 81.
Headlight range control
The headlight range control ⇒ Fig. 62 is modified according to the value of
the headlight beam and the vehicle load status. This offers the driver opti-
mum visibility and the headlights do not dazzle oncoming drivers ⇒ 
.
The headlights can only be adjusted when the dipped beam is switched on.
To reset, turn switch ⇒ Fig. 62:
ValueVehicle load status a)–Two front occupants, luggage compartment empty1All seats occupied, luggage compartment empty
ValueVehicle load statusa)
2All seats occupied, luggage compartment full With trailer
and minimum drawbar load
3Driver only, luggage compartment full With trailer and
maximum drawbar load
a)
If the vehicle load does not correspond to those shown in the table, it is possible to select
intermediary positions.
Dynamic headlight range control
The control is not mounted in vehicles with dynamic headlight range con-
trol. The headlight range is automatically adjusted according to the vehicle
load status when the headlights are switched on.
Instrument panel lighting
In vehicles with the daytime driving light, the instrument panel lighting
switches on in dark conditions (for example, when passing through a tun-
nel). This reminds the driver to manually switch on the dipped beam, so
that the vehicle rear lights also switch on ⇒ page 109.
WARNING
Heavy objects in the vehicle may mean that the headlights dazzle and
distract other drivers. This could result in a serious accident.
● Adjust the light beam to the vehicle load status so that it does not
blind other drivers.


115
Lights and visibility
Interior and reading lights 1)
Button/
SwitchFunction
Switches interior lights off.
Switches interior lights on.

Switches door contact control on (central position).
The interior lights come on automatically when the vehicle is
unlocked, a door is opened or the key is removed from the ig-
nition.
The lights go off a few seconds after all the doors are closed,
the vehicle is locked or the ignition is switched on.
Turning the reading light on and off
Glove compartment and luggage compartment lighting
When opening and closing the glove compartment on the front passenger
side and the rear lid, the respective light will automatically switch on and
off.
Footwell lighting*
The lights in the footwell area below the dash (driver and front passenger
sides) will switch on when the doors are opened and will decrease in inten-
sity while driving. The intensity of these lights can be adjusted using the ra-
dio menu (see Easy Connect > Adjusting Lighting > Interior lighting⇒ page 81).
Ambient light*
The ambient light in the door panel changes colour (white or red) depend-
ing on the driving mode. The intensity of these lights can be adjusted using the radio menu (see Easy Connect > Adjusting Lights > Interior lighting
⇒  page 81).
Note
The reading lights switch off when the vehicle is locked using a key or after
several minutes if the key is removed from the ignition. This prevents the
battery from discharging. 
Sun blind Introduction
WARNING
Folded sun blinds can reduce visibility.
● Always store sun blinds and visors in their housing when not in use.

1)
Depending on the level of equipment fitted in the vehicle, LEDs can be used for the follow-
ing interior lights: front courtesy light, rear courtesy light, footwell light and sun visor light.
Safety FirstOperating instructionsPractical TipsTechnical specifications

116Lights and visibility
Sun visors
Fig. 63 Sun visor
Options for adjusting driver and front passenger sun visors:
● Lower by unfolding towards the windscreen.
● The sun visor can be pulled out of its mounting and turned towards the
door ⇒ Fig. 63 1
.
● Swing the sun visor towards the door, longitudinally backwards.
Vanity mirror light
There may be a vanity mirror, with a cover, on the rear of the sun visor. When
the cover is opened 2
a light comes on.
The lamp goes out when the vanity mirror cover is closed or the sun visor is
pushed back up.
Note
The light above the sun visor automatically switches off after a few minutes
in certain conditions. This prevents the battery from discharging. Windscreen wiper system
Introduction
Additional information and warnings:
● Changing wheels round
● Heating, ventilation, cooling
● Caring for and cleaning the vehicle exterior
WARNING
If the water from the windscreen washer does not contain enough anti-
freeze, it may freeze on the windscreen, reducing forward visibility.
● In winter, ensure the windscreen washer contains enough anti-freeze.
● In cold conditions, you should not use the wash/wipe system unless
you have warmed the windscreen with the ventilation system. The anti-
freeze could freeze on the windscreen and reduce visibility.
WARNING
Worn or dirty wiper blades reduce visibility and increase the risk of acci-
dent and serious injury.
● Always replace damaged or worn blades or blades which do not clean
the windscreen correctly.
CAUTION
In icy conditions, always check that the wiper blades are not frozen to the
glass before using the wipers. In cold weather, it may help to leave the vehi-
cle parked with the wipers in service position ⇒ page 119. 

117
Lights and visibility
Control lamp
lights upPossible causeSolution
Windscreen wiper fluid level
too lowTop up the windscreen wiper
reservoir as soon as possible
⇒ page 121.
Several warning and control lamps should light up for a few seconds when
the ignition is switched on, signalling that the function is being verified.
They will switch off after a few seconds.
CAUTION
Failure to heed the control lamps and text messages when they appear may
result in faults in the vehicle. 
Safety FirstOperating instructionsPractical TipsTechnical specifications

121
Lights and visibility
● Damaged blades: A film of water on the damaged blades may lengthen
the activation time, reduce the washing intervals or result in a fast and con-
tinuous wipe.
● Insects: insects on the sensor may trigger the windscreen washer.
● Salt on roads: in winter, salt spread in the roads may cause an extra
long wipe when the windscreen is almost dry.
● Dirt: dry dust, wax, coating on glass (Lotus effect) or traces 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 will trigger a single wipe cy-
cle with the rain sensor on. Next the rain sensor detects the reduction in the
sensitive surface area and adapts accordingly. The behaviour of the sensor
will vary with the size of the damage caused by the stone.
WARNING
The rain sensor may not detect enough rain to switch on the wipers.
● If necessary, switch on the wipers manually when water on the wind-
screen obstructs visibility.
Note
● Clean the sensitive surface of the rain sensor regularly and check the
blades for damage ⇒ Fig. 67 (arrow).
● To remove wax and coatings, we recommend a window cleaner contain-
ing alcohol. Checking and topping up the windscreen washer reservoir
with water
Fig. 68 In the engine
compartment: wind-
screen washer reservoir
top
Check the water level in the windscreen washer reservoir regularly and top
up as required.
● Open the bonnet 
⇒  page 209.
● The washer reservoir is marked with the symbol  on the lid
⇒ Fig. 68.
● Check there is enough water in the reservoir.
● To top up, mix water with a window cleaner recommended by SEAT
⇒ 
.
Please follow the instructions for use found on the packaging.
● In cold weather, a special antifreeze should also be added to prevent
the water from freezing ⇒ 
. 
Safety FirstOperating instructionsPractical TipsTechnical specifications

122Lights and visibility
Recommended windscreen wipers
● For the hottest seasons we recommend summer G 052 184 A1 for clear
glass. Proportions of the mixture in the washer fluid tank: 1:100 (1 part con-
centrate per 100 parts water).
● All year round, G 052 164 A2 for clear glass. Approximate proportion of
the winter mixture, up to -18 °C (0 °F): 1:2 (1 part concentrate per 2 parts
water); otherwise, a 1:4 proportion of mixture in the washer fluid tank.
Reservoir capacity
The reservoir holds approximately 3 - 4 litres; in vehicles with headlight
washer, it is approximately 3 -6 litres.
WARNING
Never mix an unsuitable antifreeze or other similar additives with the
windscreen washer water. A greasy layer may be formed on the wind-
screen which will impair visibility.
● Use clean water with a window cleaner recommended by SEAT.
● If necessary, add a suitable antifreeze to the water in the reservoir.
CAUTION
● Do not mix cleaning products recommended by SEAT with other prod-
ucts. This could lead to flocculation and may block the windscreen washer
jets.
● When topping up service fluids, make absolutely certain that you fill the
fluids into the correct reservoirs. Using the wrong fluids could cause serious
malfunctions and engine damage! Rear vision mirror
Adjusting the exterior mirrors
Fig. 69 Driver door: con-
trol for the exterior mirror
Turn the knob to the appropriate position: – In these positions you can adjust the exterior mirrors (left or right) by
moving the control in the desired direction.
– The surfaces of the exterior mirrors are heated* depending on the
outside temperature, and on the equipment fitted in the vehicle.
– The exterior mirrors are retracted*.
Synchronized regulation of the exterior mirrors
● In the Settings - Convenience menu, select whether or not the exterior
mirrors should move in synchronisation ⇒ page 77.
● Turn the knob to position L.
● Adjust the left-hand exterior mirror. The right exterior mirror will be ad-
justed at the same time (synchronised). 
L/R



123
Lights and visibility
● If necessary the right exterior mirror adjustment may need correcting.
Turn the knob to position R.
● In the Easy Connect system the exterior mirrors can be adjusted using
the CAR
button and the function button SETUP.
Tilt function for front passenger exterior mirror*
The mirror can automatically tilt slightly to provide a better view of the kerb
when parking backwards. The control must be in the position R for this fea-
ture to be operational.
The mirror returns to its original position as soon as you drive forwards at
over 15 km/h (10 mph) or switch off the ignition. It also returns to its origi-
nal position if the position of the control is adjusted.
WARNING
Convex or wide-angle* exterior mirrors give a larger field of vision. How-
ever, they make objects look smaller and further away than they really
are. If you use these mirrors to estimate the distance to vehicles behind
you when changing lane, you could misjudge the distance. Risk of acci-
dent!
CAUTION
● If one of the mirror housings is knocked out of position (e.g. when park-
ing), the mirrors must first be fully retracted with the electric control. Do not
readjust the mirror housing by hand, as this will interfere with the mirror ad-
juster function.
● Before washing the vehicle in an automatic car wash, please make sure
to retract the exterior mirrors to prevent them from being damaged. Electri-
cally retractable exterior mirrors must NOT be folded in or out by hand. Al-
ways use the electrical power control.
Note
If the electrical adjustment should fail to operate, both of the mirrors can be
adjusted by hand by lightly pressing the edge of the mirror glass. Anti-dazzle rear vision mirrors
Your vehicle is fitted with an interior rear vision mirror with a
manual or automatic control for anti-dazzle position.
Fig. 70 Interior rear vi-
sion mirror with automat-
ic setting for anti-dazzle
position
Interior rear vision mirror with manual setting for anti-dazzle
position
– Position the small lever of the lower edge of the mirror to face
towards the rear.
Anti-dazzle rear vision mirror with automatic setting*
– Press the button A
. Warning lamp B will light up. Depending
on the amount of light incidence, the interior rear vision mirror
and the exterior* mirrors darken (e.g. headlight shining from
behind). 
Safety FirstOperating instructionsPractical TipsTechnical specifications