light Seat Exeo ST 2010 Workshop Manual

Lights and visibility
116Lights and visibilityLightsLights: switching on and off
“
Switching on the side lights
–Turn the light switch ⇒ fig. 85 to position
.
Switching on dipped or main beam headlights (driving lights)
Dipped beam headlights
– Turn the lights switch to position
.
Main beam headlights
– Turn the lights switch to position . – Press the main beam lever forward
⇒page 123.
Switching off the lights
– Turn the light switch to position O.
Daytime running lights: In vehicles for countries where daytime running
lights are obligatory and in all vehicles with AFS headlights, daytime running
lights are turned on or off with the ignition. Daytime running lights have main
beam flashers, as usual, but not the dipped beam headlight function
The dipped beam headlights will only work with the ignition on. The head-
lights are automatically switched to side lights after the ignition has been
switched off.
If the side lights or the dipped beam headlights are turned on, the
 symbol
will come on together with the lights switch.
Note
•If the lights are left on after the key has been taken out of the ignition lock,
a buzzer sounds when the driver door is opened.•Observe all relevant legal requirements when using the signalling and
lighting systems described here.•Depending on weather conditions (cold or wet), the front lights, the fog
lights, the tail lights and the turn signals may be temporarily misted. This has
no influence on the useful life of the lighting system. By switching on the
lights, the area through which the beam of light is projected will quickly be
demisted. However, the edges may continue to be misted.
Fig. 85 Detailed view of
the dash panel: Light
switch
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Lights and visibility117
Safety First
Operating Instructions
Practical Tips
Technical Specifications
Automatic headlight switch* (sensor-controlled)
If you set the light switch to “AUTO”, the dipped headlights
will switch on and off automatically according to the ambient
light level.Turning on dipped beam headlights
– Turn the light switch ⇒fig. 86 to the AUTO position.
Turning off dipped beam headlights
– Turn the light switch to position O.The symbol on the switch lights up when the switch is in the AUTO position.
The dipped beams, side lights, tail lights and number plate lights come on
together when the headlights are switched on automatically.
When you are using the automatic headlights switch, you can also operate
the main beam headlights, however, please note the following: If you enable the main beam headlights while using the automatic headlights function
during the day
(e.g. when driving through a tunnel), but do not disable them
again, only the dipped beam headlights will come on the next time the lights
are automatically switched on. To be able to use the main beam headlights
again, you must first pull the main beam lever back to the "off" position and
then push it forward again to "on".
The side lights, headlights, fog lights and rear fog light can still be switched
on manually in the normal way by using lights switch ⇒page 116.
The interior mirror is fitted with sensors that measure the ambient light. The
dipped beam headlights will be switched on automatically if the available
light drops below the factory preset value (for instance when driving through
a tunnel, etc.). The headlights switch off again automatically when the light
level increases ⇒.
WARNING
•The automatic dipped beam headlights are only intended to assist the
driver. Automatic dipped beam headlights do not relieve the driver of his or
her responsibility to control them and turn off or turn on the lights manu-
ally according to weather or lighting conditions. The light sensors are, for
example, unable to detect rain and fog - you should therefore always switch
on the dipped beam headlights
 manually in these conditions and when
driving after dark.
•Observe all relevant legal requirements when using the signalling and
lighting systems described here.Note
•If automatic headlight switching is activated, when the ignition is turned
off the dipped beam headlights are turned off, and when the key is removed
from the ignition the side lights are turned off.•If you have to attach any type of sticker on the windscreen, do not do so
in front of the sensors. Doing so could prevent the automatic dipped beam
Fig. 86 Detailed view of
the dash panel: Light
switch
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Lights and visibility
118headlight or anti-dazzle function from working correctly or even from working
at all.•The warning symbol
 will appear on the instrument panel if a malfunc-
tion occurs ⇒ page 81.
•Observe all relevant legal requirements when using the signalling and
lighting systems described here.Front fog lights

The light switch can also be used to turn on the front fog
lights.Switching on the front fog lights

–Do
“ ⇒ page 116, fig. 85 not turn the light switch to the symbol
.
– First turn the light switch to the position
 or .
– Then pull the light switch out to the first stop .
The front fog light symbol
next to the switch will light up when the front fog
lights are on.
Rear fog light


The light switch can also be used to turn on the rear fog light.–Do
“ ⇒ page 116, fig. 85 not turn the light switch to the symbol

. – First turn the light switch
“
⇒ page 116, fig. 85 to the position
 or .
– Then pull out the light switch to the second stop to switch on the rear fog light.
The symbols
and

next to the switch will light up when the rear fog light
is switched on.
If you are towing a trailer or caravan equipped with a rear fog light on a vehicle
with a factory-fitted towing bracket*, only the rear fog light on the trailer or
caravan will light up.
Caution
To avoid dazzling the traffic behind you, the rear fog light should only be used
in accordance with legal regulations.
A1
A2
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Lights and visibility119
Safety First
Operating Instructions
Practical Tips
Technical Specifications
Coming home and leaving home functions*
The coming home and leaving home functions are used to
light up the surroundings in the dark. The front fog lights, the
rear side lights and the number plate light switch on.Activating the function
– Briefly press the knob ⇒ fig. 87 to release it from its set position.
– Turn the knob to position 1.
– Press the knob in again to prevent the setting from being changed unintentionally.
Deactivating the function
– Briefly press the knob ⇒ fig. 87 to release it from its set position.
– Turn the knob to position 0. – Press the knob in again to prevent the setting from being
changed unintentionally.
The coming home and leaving home functions are controlled by light sensors
in the interior mirror housing. The system will function when the following
requirements are met:•The knob is set to position 1.•The headlights and the ignition are switched off.•Dark conditions; the sensors register little or no light.
Coming home
When the system is enabled and it is dark, the corresponding exterior lights
switch on as soon as the driver door is opened.
The exterior lights will stay on for up to a maximum of 2 minutes as long as
one of the doors or the tailgate is open.
The exterior lights stay on for about 30 seconds to light up the area around
the vehicle after all the doors and the tailgate have been closed.
This time interval is factory-set, but you can have it changed by a qualified
workshop to suit your own requirements (max. setting is 60 seconds).
Leaving home
The exterior lights are switched on when the vehicle is unlocked with the
button on the remote control key.
The exterior lights go out when the driver door is opened or after 60 seconds
when the vehicle locks itself again automatically ⇒page 106.WARNING
Before leaving the vehicle, remove the key from the ignition, as the lights
will not go out if the coming home function is activated. This will lead to
battery discharge and vehicle breakdown.
Fig. 87 Detailed view of
the dash panel: Coming
home and leaving home
functions

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Lights and visibility
120
Note•If you always wish to use the coming home and leaving home functions,
you can leave them permanently switched on. As the system is controlled via
a photosensor, it will only work in dark conditions.•Permanent use of the coming home and leaving home functions, particu-
larly on short journeys, will increase the load on the battery. To make sure the
battery is always sufficiently charged, occasionally drive longer distances.•If the fog lights have been switched on by the coming home and leaving
home functions, they will always be switched off when you switch on the igni-
tion.•Observe all relevant legal requirements when using the signalling and
lighting systems described here.Instrument lighting
The brightness of the instrument lighting, displays and
centre console lighting can be varied as required.
– Press the button to increase the brightness.
– Press the button to reduce the brightness.With the ignition switched on
The lighting of the digital displays will adjust automatically, depending on
the ambient light.
With the vehicle's lights switched on
When the vehicle's lights are switched on, the brightness of the instrument
lighting, displays and centre console lighting can be varied by pressing the and buttons.Headlight range control

When the dipped beam headlights are switched on, the range
of the headlights can be adjusted to suit the load of the
vehicle.
Fig. 88 Instrument panel
lighting
+-
+
-
Fig. 89 Headlight range
control
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Lights and visibility121
Safety First
Operating Instructions
Practical Tips
Technical Specifications
– Briefly press the knob
 ⇒ page 120, fig. 89 to release it from
its set position.
– Turn the knob to the required setting.
– Press the knob in again to prevent the setting from being changed unintentionally.
Settings
The settings roughly correspond to the following load conditions:
Two front occupants, luggage compartment empty
All seats occupied, luggage compartment empty
All seats occupied, luggage compartment loaded
Driver only, luggage compartment loaded
Caution
Always adjust the headlights to avoid dazzling oncoming traffic. Make sure
you lower the headlights when the vehicle is more heavily laden.Dynamic headlight range controlOn vehicles with xenon lamps, the headlights automatically adapt to suit the
load being carried when the ignition is switched on and when the vehicle is
moving, depending on the load of the vehicle and the type of driving (e.g.
when accelerating and braking).
Daytime running lights*
The daytime running lights turn on automatically when the
ignition is switched on.Activating the function
– Briefly press the knob ⇒ fig. 90 to release it from its set position.
– Turn the knob to position 1.
– Press the knob in again to prevent the setting from being changed unintentionally.
Deactivating the function
– Briefly press the knob ⇒ fig. 90 to release it from its set position.
– Turn the knob to position 0.
AOA1A2A3
Fig. 90 Daytime running
lights switch
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Lights and visibility
122
– Press the knob in again to prevent the setting from being changed unintentionally.This button activates or deactivates the daytime running lights function. With
the function activated, when the ignition is switched on the daytime running
lights are turned on automatically.
Note
Please observe any relevant legal requirements which may apply in your
country.Adaptive headlights* (for driving around bends)
When driving around bends, the headlights will light the
most important areas of the road.
The dynamic cornering light gives better illumination of the curve area and
the side of the road when driving around a bend ⇒fig. 91 . The dynamic
cornering light is controlled automatically depending on the speed and the
steering wheel angle.
The dipped beam headlights are regulated automatically when you drive
around a bend, depending on how far you turn the steering wheel. The two
main headlights move at different angles to avoid that the front of the vehicle
is left completely in the dark.
Note
The system operates from a speed of about 10 km/h.Hazard warning lights

The hazard warning lights are used to draw the attention of
other road users to your vehicle in emergencies.
Fig. 91 Adaptive head-
lights when driving
Fig. 92 Centre console:
Switch for hazard warning
lights
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Lights and visibility123
Safety First
Operating Instructions
Practical Tips
Technical Specifications
–Press the switch
 ⇒ page 122, fig. 92 to switch the hazard
warning lights on or off.
All four turn signals flash simultaneously when the hazard warning lights are
switched on. The turn signal indicators

and the hazard warning light
indicator
 flash at the same time. The hazard warning lights also work
when the ignition is switched off.
In an accident in which the airbags are triggered, the hazard warning lights
are switched on automatically.
Note
You should switch on the hazard warning lights to warn other road users, e.g.•When reaching the tail end of a traffic jam•If your vehicle breaks down or there is an emergency•If your vehicle is being towed away or if you are towing another vehicle
Turn signal

and main beam headlight lever

The turn signal and main beam headlight lever also operates
the parking lights and the headlight flasher.The turn signal and main beam headlight lever has the following
functions:
Turn signals

– Move the lever all the way up to indicate right or all the way down to indicate left ⇒fig. 93 .
– Move the lever up or down just as far as the point of resistance and hold it there: the turn signals flash for as long as you hold
the lever (for instance when changing a lane).
– Move the lever briefly up or down as far as the point of resistance and release it to signal briefly (the turn signals flash three times).
Fig. 93 Turn signal and
main beam headlight
lever
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Lights and visibility
124
Main beam headlights

– Press the lever forward to switch on the main beams.
– Pull the lever back towards you to switch the main beam head-lights off again.
Headlight flasher

– Pull the lever towards the steering wheel to operate the flasher.
Parking light

– Switch the ignition off.
– Move the lever up or down to turn on the right or left-hand
parking lights respectively.Notes on these functions•The turn signals only work when the ignition is switched on. The turn
signal lamp
 or
flashes in the instrument panel when the turns signals
⇒ page 65 are working.
•The turn signals are cancelled automatically when the steering wheel is
returned to the straight-ahead position.•The main beam headlights can only be switched on if the dipped beam
headlights are already on. The main beam headlight indicator lamp
 then
comes on in the instrument panel.
•The headlight flasher co m es on fo r as long as you pull th e le ve r, ev en if n o
other lights are switched on. The main beam headlight indicator lamp

then comes on in the instrument panel.
•When the parking lights are switched on, the headlight and the tail light
on one side of the vehicle light up with reduced intensity. The parking lights
will only work with the ignition off.
Caution
Never use the main beam headlights or the headlight flasher if this would
dazzle oncoming traffic.Interior lightsFront interior lights and glove compartment light
The front interior light also incorporates the reading lights for
the driver and passenger.The rocker switch ⇒ fig. 94 for the front interior light has the
following functions:
Fig. 94 Detail of head-
liner: front interior lights
AA
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Lights and visibility125
Safety First
Operating Instructions
Practical Tips
Technical Specifications
Door light position
– Move switch to the centre position.
Interior light switched on
– Move switch to position I.
Interior light switched off
– Move switch to position O.
Front reading lights

– Press one of the switches to turn the left and right reading
lights on and off.
Glove compartment light
– Open the glove compartment on the front passenger side. The glove compartment light will come on automatically if the side
lights or headlights are switched on, and will go out again when
the glove compartment is closed.
Footwell* and door lighting
– This is switched on when the doors are opened and off when they are closed.If the switch is in the courtesy light position, the interior light comes on auto-
matically when the vehicle is unlocked or the doors are opened. The light also
comes on when the key is pulled out of the ignition. The light turns off about
30 seconds after closing the doors. The interior light is switched off immedi-
ately when the vehicle is locked or when the ignition is switched on.
If a door is left open, the light is switched off after about 10 minutes to
prevent the battery from running flat. The brightness of the lights is automatically adjusted by a dimmer when they
are switched on.
Ambient lighting*
The ambient lighting illuminates a number of important
controls.The lights in the door handles come on automatically when the ignition is
switched on.
The lighting above the windscreen* also comes on when the side lights or
headlights are switched on. The centre console is illuminated from above.
The ambient lighting cannot be switched off manually.
AAAAAA
AB
Fig. 95 Detail of head-
liner: ambient lighting
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