Lexus GS250 2012 Owner's Manual

2344-3. Operating the lights and wipers
GS350/250_EE (OM30C36E)When all of the following conditions are fulfilled, high beam will
be automatically turned on (after approximately 1 second):
Vehicle speed is above approximately 40 km/h (25 mph).
The area ahead of the vehicle is dark.
There are no oncoming or preceding vehicles with headlights or
tail lights turned on.
There are few streetlights on the road ahead.
If any of the following conditions are fulfilled, high beam will be
automatically turned off:
Vehicle speed drops below approximately 30 km/h (19 mph).
The area ahead of the vehicle is not dark.
Oncoming or preceding vehicles have headlights or tail lights
turned on.
There are many streetlights on the road ahead.
High beam automatic turning on or off conditions

2354-3. Operating the lights and wipers
4
Driving
GS350/250_EE (OM30C36E)
Switching to low beam
Pull the lever to original posi-
tion.
The Automatic High Beam indi-
cator will turn off.
Push the lever away from you to
activate the Automatic High
Beam system again.
Switching to high beam
Press the Automatic High
Beam switch.
The Automatic High Beam indi-
cator will turn off and the high
beam indicator will turn on.
Press the switch to activate the
Automatic High Beam system
again.
Turning the high beam on/off manually

2364-3. Operating the lights and wipers
GS350/250_EE (OM30C36E)
The Automatic High Beam can be operated when
The engine switch is in IGNITION ON mode.
Camera sensor detection information
High beam may not be automatically turned off in the following situations:
• When oncoming vehicles suddenly appear from a curve
• When the vehicle is cut in front of by another
• When oncoming or preceding vehicles are hidden from sight due to
repeated curves, road dividers or roadside trees
High beam may be turned off if an oncoming vehicle that is using fog lights
without using the headlights is detected.
House lights, street lights, red traffic signals, and illuminated billboards or
signs may cause the high beam to turn off.
The following factors may affect the amount of time taken to turn high
beam on or off:
• The brightness of headlights, fog lights, and tail lights of oncoming and
preceding vehicles
• The movement and direction of oncoming and preceding vehicles
• When a oncoming or preceding vehicle only has operational lights on
one side
• When a oncoming or preceding vehicle is a two-wheeled vehicle
• The condition of the road (gradient, curve, condition of the road surface
etc.)
• The number of passengers and amount of luggage
High beam may be turned on or off when unexpected by the driver.

2374-3. Operating the lights and wipers
4
Driving
GS350/250_EE (OM30C36E)
In the situations below, the system may not be able to correctly detect the
surrounding brightness levels, and may flash or expose nearby pedestrians
to the high beam. Therefore, you should consider turning the high beams on
or off manually rather than relying on the Automatic High Beam system.
• In bad weather (rain, snow, fog, sandstorms etc.)
• The windshield is obscured by fog, mist, ice, dirt etc.
• The windshield is cracked or damaged.
• The inside rear view mirror or camera sensor is deformed or dirty.
• Surrounding brightness levels are equal to those of headlights, tail lights
or fog lights.
• Vehicles ahead have headlights that are either switched off, dirty, are
changing color, or have are not aimed properly.
• When driving through an area of intermittently changing brightness and
darkness.
• When frequently and repeatedly driving ascending/descending roads, or
roads with rough, bumpy or uneven surfaces (such as stone-paved roads,
gravel tracks etc.).
• When frequently and repeatedly taking curves or driving on a winding
road.
• There is a highly reflective object ahead of the vehicle, such as a sign or
a mirror.
• The vehicle’s headlights are damaged or dirty.
• The vehicle is listing or titling, due to a flat tire, a trailer being towed etc.
• The driver believes that the high beam may be causing problems or dis-
tress to other drivers or pedestrians nearby.
CAUTION
Limitations of the Automatic High Beam
Do not rely on the Automatic High Beam. Always drive safely, taking care
to observe your surroundings and turning high beam on or off manually if
necessary.

2384-3. Operating the lights and wipers
GS350/250_EE (OM30C36E)
NOTICE
Notes when using the Automatic High Beam system
Do not touch the camera sensor.
Do not subject the inside rear view mirror or the camera sensor to a strong
impact.
Do not disassemble the camera sensor.
Do not spill liquid onto the inside rear view mirror or the camera sensor.
Do not apply window tinting or stickers to the camera sensor or the area of
windshield near the camera sensor.
Do not place items on the dashboard. There is a possibility that the camera
sensor will mistake items reflected in the windshield for streetlights, the
headlights of other vehicles, etc.
Do not install a parking tag or any other accessories near or around the
inside rear view mirror and the camera sensor.
Do not overload the vehicle.
Do not modify the vehicle.
Do not replace windshield with non-genuine windshield.
Contact any authorized Lexus dealer or repairer, or another duly qualified
and equipped professional.
Observe the following to ensure that the
Automatic High Beam functions cor-
rectly.

239
4 4-3. Operating the lights and wipers
Driving
GS350/250_EE (OM30C36E)
Fog light switch
Front and rear fog light switch
Turns the front and rear
fog lights off
Turns the front fog lights
on
Turns both front and rear
fog lights on
Releasing the switch ring returns it
to .
Operating the switch ring again
turns only the rear fog light off.
Rear fog light switch
Turns the rear fog light
off
Turns the rear fog light on
Releasing the switch ring returns it
to .
Operating the switch ring again
turns only the rear fog light off.
The fog lights secure excellent visibility in difficult driving condi-
tions, such as in rain and fog.
1
2
3
1
2

2404-3. Operating the lights and wipers
GS350/250_EE (OM30C36E)
Fog lights can be used when
Vehicles with a front and rear fog light switch
Front fog lights: The headlights or the front position lights are turned on.
Rear fog light: The front fog lights are turned on.
Vehicles with a rear fog light switch
The headlights or the front position lights are turned on.

241
4 4-3. Operating the lights and wipers
Driving
GS350/250_EE (OM30C36E)
Windshield wipers and washer
Operate the lever as follows to operate the wipers. The lever will
return to its original position after operation.
Intermittent windshield wipers with interval adjuster
Up 2 levels
Up 1 level
Down 1 level
Down 2 levels
Operating the wiper lever
1
2
3
4
OffTemporary
operationTe m p o r a r y
operationIntermittent
operationHigh speed
operation
Intermittent
operationOffOffLow speed
operationHigh speed
operation
Low speed
operationOffIntermittent
operationHigh speed
operationHigh speed
operation
High speed
operationOffLow speed
operationNo changeNo change
Status
before
opera-
Operation

2424-3. Operating the lights and wipers
GS350/250_EE (OM30C36E)Wiper intervals can be adjusted when intermittent operation is
selected.
Increases the intermittent
windshield wiper frequency
Decreases the intermittent
windshield wiper frequency
Washer/wiper dual operation
Wipers will automatically operate
a couple of times after the washer
squirts.
5
6
7

2434-3. Operating the lights and wipers
4
Driving
GS350/250_EE (OM30C36E)
Rain-sensing windshield wipers
Up 2 levels
Up 1 level
Down 1 level
Down 2 levels
AUTO mode on/off
switch
With selected, the wipers
will operate automatically when
the sensor detects falling rain. The
system automatically adjusts wiper
timing in accordance with rain vol-
ume and vehicle speed.
AUTO mode indicator will turn on
when AUTO mode is selected.
*: After temporary operation, the mode will return to AUTO mode.
AUTO mode
indicator
1
2
3
4
5
OffTemporary
operationTe m p o r a r y
operationLow speed
operationHigh speed
operation
Low speed
operationOffOffHigh speed
operationHigh speed
operation
High speed
operationOffLow speed
operationNo changeNo change
AUTO
mode
Intermittent
operation
Off
Te m p o r a r y
operation*
Low speed
operationHigh speed
operation
Continu-
ouslyNo change
Operation
Status
before opera-