Lexus IS250 2014 Owner's Manual

2114-3. Operating the lights and wipers
4
Driving
IS250_EE(OM53C51E)
■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 vehicle
• 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 an oncoming or preceding vehicle only has operational lights on one side
• When an 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.
●Small vehicles, such as bicycles, may not be detected.
●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. There-
fore, 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 camera sensor is deformed or dirty.
• Surrounding brightness levels are equal to those of headlights, tail lights or fog lights.
• Vehicles ahead have headlights or tail lights that are either switched off, dirty, chang-
ing color, or have improperly adjusted aim.
• 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 distress to other
drivers or pedestrians nearby.
• The vehicle is used in a territory in which vehicles travel on the opposite side of the
road of the country for which the vehicle is approved, for example using a vehicle
designed for right-hand traffic in a left-hand traffic territory, or vice versa.

2124-3. Operating the lights and wipers
IS250_EE(OM53C51E)
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.
NOTICE
■Notes when using the Automatic High Beam system
●Do not touch the camera sensor.
●Do not subject the camera sensor to a strong impact.
●Do not disassemble the camera sensor.
●Do not spill liquid onto the camera sensor.
●Do not apply window tinting or stickers to the camera sensor or the area of wind-
shield 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 vehi-
cles, etc.
●Do not install a parking tag or any other accessories near or around the camera sen-
sor.
●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 Auto-
matic High Beam functions correctly.

2134-3. Operating the lights and wipers
4
Driving
IS250_EE(OM53C51E)
XFront 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.
XRear 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.
Fog light switch
The fog lights secure excellent visibility in difficult driving conditions, such as
in rain and fog.
1
2
3
1
2

2144-3. Operating the lights and wipers
IS250_EE(OM53C51E)
■Fog lights can be used when
XVehicles 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.
XVehicles with a rear fog light switch
The headlights or the front position lights are turned on.
■Operation guide display (vehicles with rain-sensing windshield wipers only)
When the fog light switch is operated, the current status is displayed on the meters for a
few seconds. (→P. 1 0 3 )

2154-3. Operating the lights and wipers
4
Driving
IS250_EE(OM53C51E)
Operate the lever as follows to operate the wipers. The lever will return to its
original position immediately after operation.
XIntermittent windshield wipers with interval adjuster
Move the lever up by 2 levels
Move the lever up by 1 level
Move the lever down by 1 level
Move the lever down by 2 lev-
els
Windshield wipers and washer
Operating the wiper lever
1
2
3
4
OffTe m p o r a r y
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
operation
Operation

2164-3. Operating the lights and wipers
IS250_EE(OM53C51E)
Wiper intervals can be adjusted when intermittent operation is selected.
Increases the intermittent windshield
wiper frequency
Decreases the intermittent wind-
shield wiper frequency
Washer/wiper dual operation
The wipers will automatically operate a
couple of times after the washer squirts.
When the headlights are on and the
lever is pulled and held, the headlight
cleaners will operate once. After this,
the headlight cleaners will operate
every 5th time the lever is pulled.
5
6
7

2174-3. Operating the lights and wipers
4
Driving
IS250_EE(OM53C51E)
XRain-sensing windshield wipers
Move the lever up by 2 levels
Move the lever up by 1 level
Move the lever down by 1 level
Move the lever down by 2 lev-
els
AUTO mode on/off switch
With AUTO mode selected, the wipers
will operate automatically when the sen-
sor detects falling rain. The system auto-
matically adjusts wiper timing in
accordance with rain volume and vehi-
cle speed.
The AUTO mode indicator will turn on
when AUTO mode is selected.
*1: After temporary operation, the mode will return to AUTO mode.
*2: AUTO mode will be canceled.
AUTO mode
indicator
1
2
3
4
5
OffTe m p o r a r y
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
modeIntermittent
operation
Off
Te m p o r a r y
operation
*1Low speed
operation
*2High speed
operation
*2
ContinuouslyNo change
Operation
Status
before
operation

2184-3. Operating the lights and wipers
IS250_EE(OM53C51E)
When AUTO mode is selected, the sensor sensitivity can be adjusted by turning
the switch ring.
Increases the sensitivity
Decreases the sensitivity
Washer/wiper dual operation
The wipers will automatically operate a
couple of times after the washer squirts.
When the headlights are on and the
lever is pulled and held, the headlight
cleaners will operate once. After this,
the headlight cleaners will operate
every 5th time the lever is pulled.
The wipers can be used as intermittent windshield wipers, which operate regard-
less of vehicle speed or amount of raindrops. The intermittent windshield wiper
operation can be switched when the vehicle is stopped and the wiper is off. The
wiper operation cannot be switched during AUTO mode or while the intermit-
tent windshield wipers are operating.
Press and hold until the AUTO
mode indicator stops flashing.
If is pressed and held until the
AUTO mode indicator stops flashing
again, it will return to its previous state.
The wiper can be switched when the
vehicle is stopped and the wipers are off.
6
7
8
Switching between the intermittent windshield wipers and rain-sensing
windshield wipers (vehicles with rain-sensing windshield wipers)

2194-3. Operating the lights and wipers
4
Driving
IS250_EE(OM53C51E)
■The windshield wiper and washer can be operated when
The engine switch is in IGNITION ON mode.
■Dripping prevention wiper sweep
After performing a washing and wiping operation several times, the wipers operate one
more time after a short delay to prevent dripping.
However, the last sweep will not happen if the vehicle is traveling above 170 km/h (106
mph).
■Effects of vehicle speed on wiper operation (vehicles with rain-sensing windshield wip-
ers)
Vehicle speed affects the following even when the wipers are not in AUTO mode.
●Intermittent wiper interval
●Wiper operation when the washer is being used (delay until drip prevention wiper
sweep occurs)
With low speed windshield wiper operation selected, wiper operation will be switched
from low speed to intermittent wiper operation only when the vehicle is stationary.
■Raindrop sensor (vehicles with rain-sensing windshield wipers)
●If the wiper is turned to AUTO mode while the engine switch is in IGNITION ON
mode, the wipers will operate once to show that AUTO mode is activated.
●If the temperature of the raindrop sensor is 85°C (185°F) or higher, or -30°C (-22°F)
or lower, automatic operation may not occur. In this case, operate the wipers in any
mode other than AUTO mode.
■When the windshield wipers are in temporary operation (vehicles with rain-sensing
windshield wipers)
AUTO mode cannot be activated even if is pressed.
■If no windshield washer fluid sprays
Check that the washer nozzles are not blocked if there is washer fluid in the windshield
washer fluid reservoir.
■Operation guide display (vehicles with rain-sensing windshield wipers only)
When the windshield wiper switch is operated to activate AUTO mode or when the rain-
sensing level is adjusted, the current status is displayed on the meters for a few seconds.
(→P. 1 0 3 )
●The raindrop sensor judges the amount of
raindrops.
An optical sensor is adopted. It may not oper-
ate properly when sunlight from the rising or
setting of the sun intermittently strikes the
windshield, or if bugs etc. are present on the
windshield.

2204-3. Operating the lights and wipers
IS250_EE(OM53C51E)
CAUTION
■Caution regarding the use of windshield wipers in AUTO mode
The windshield wipers may operate unexpectedly if the sensor is touched or the wind-
shield is subject to vibration in AUTO mode. Take care that your fingers or anything
else do not become caught in the windshield wipers.
■Caution regarding the use of washer fluid
When it is cold, do not use the washer fluid until the windshield becomes warm. The
fluid may freeze on the windshield and cause low visibility. This may lead to an accident,
resulting in death or serious injury.
NOTICE
■When the windshield is dry
Do not use the wipers, as they may damage the windshield.
■When there is no washer fluid spray from the nozzle
Damage to the washer fluid pump may be caused if the lever is pulled toward you and
held continually.
■When a nozzle becomes blocked
In this case, contact any authorized Lexus dealer or repairer, or another duly qualified
and equipped professional.
Do not try to clear it with a pin or other object. The nozzle will be damaged.