2015 Lexus IS250 Audio menu screen operation /

1854-3. Operating the lights and wipers
4
Driving
IS350/250_U (OM53C50U)
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.
Vehicles with headlight cleaners: When
the headlights are on and the lever is
pulled and held, the headlight cleaners
will operate once. After this, the head-
light 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 rain drops. The intermittent windshield wiper
operation can be switched when the vehicl e 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.
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7
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Switching between the intermittent wi ndshield wipers and rain-sensing
windshield wipers (vehicles with rain-sensing windshield wipers)

1864-3. Operating the lights and wipers
IS350/250_U (OM53C50U)
■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 106 mph (170
km/h).
■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 operat ion 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 185°F (85°C) or higher, or -22°F (-30°C)
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 tempor ary 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 swit ch 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. 8 9 )
●The raindrop sensor judges the amount of
raindrops.
An optical sensor is ad opted. 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.

1874-3. Operating the lights and wipers
4
Driving
IS350/250_U (OM53C50U)
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 fl uid until the windshield becomes warm. The
fluid may freeze on the windshield and cause lo w 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 your Lexus dealer.
Do not try to clear it with a pin or other object. The nozzle will be damaged.

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IS350/250_U (OM53C50U)4-4. Refueling
●Close all the doors and windows, and turn the engine switch off.
●Confirm the type of fuel.
■Fuel types
Use unleaded gasoline (Octane rating 91 [Research Octane Number 96] or higher)
Opening the fuel tank cap
Perform the following steps to open the fuel tank cap:
Before refueling the vehicle
CAUTION
■When refueling the vehicle
Observe the following precautions while refu
eling the vehicle. Failure to do so may
result in death or serious injury.
●After exiting the vehicle and before openin g the fuel door, touch an unpainted metal
surface to discharge any static electricity. It is important to discharge static electricity
before refueling because sparks resulting fr om static electricity can cause fuel vapors
to ignite while refueling.
●Always hold the grips on th e fuel tank cap and turn it slowly to remove it.
A whooshing sound may be heard when the fuel tank cap is loosened. Wait until the
sound cannot be heard before fully removing the cap. In hot weather, pressurized fuel
may spray out the filler neck and cause injury.
●Do not allow anyone that has not discharged static electricity from their body to come
close to an open fuel tank.
●Do not inhale vaporized fuel.
Fuel contains substances th at are harmful if inhaled.
●Do not smoke while refueling the vehicle.
Doing so may cause the fuel to ignite and cause a fire.
●Do not return to the vehicle or touch any person or object that is statically charged.
This may cause static electricity to build up, resulting in a possible ignition hazard.
■When refueling
Observe the following precautions to prevent fuel overflowing from the fuel tank:
●Securely insert the fuel nozzle into the fuel filler neck.
●Stop filling the tank after the fuel nozzle automatically clicks off.
●Do not top off the fuel tank.

1894-4. Refueling
4
Driving
IS350/250_U (OM53C50U)
NOTICE
■Refueling
Do not spill fuel during refueling.
Doing so may damage the vehicle, such as causing the emission control system to
operate abnormally or damaging fuel system components or the vehicle’s painted sur-
face.

1904-4. Refueling
IS350/250_U (OM53C50U)
With the doors unlocked, press the
center of the rear edge of the fuel
filler door.
Push until you hear a click and take your
hand away to slightly open the fuel filler
door. Then open the door fully by hand.
Turn the fuel tank cap slowly to
remove it and put it into the holder
on the fuel filler door.
■If the fuel filler door cannot be opened
Opening the fuel tank cap
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2
Remove the cover inside the trunk and pull the
lever to open the fuel filler door if the fuel filler
door cannot be opened by pressing the rear
edge of the fuel filler door.

1914-4. Refueling
4
Driving
IS350/250_U (OM53C50U)
After refueling, turn the fuel tank cap
until you hear a click. Once the cap
is released, it will turn slightly in the
opposite direction.
Close the fuel filler door, and press
the center of the rear edge of the
fuel filler door until you hear a click.
When you lock the doors, the fuel filler
door will also lock.
■Fuel filler door lock condition
The fuel filler door may not be locked even when the vehicle’s doors are locked in the fol-
lowing situations:
●When operating the door lock button inside the vehicle
●When the automatic door locking system is operated ( P. 5 3 9 )
●When the fuel filler door is closed after the vehicle’s doors are locked
Closing the fuel tank cap
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CAUTION
■When replacing the fuel tank cap
Do not use anything but a genuine Lexus fuel tank cap designed for your vehicle. Doing
so may cause a fire or other incident whic h may result in death or serious injury.

192
IS350/250_U (OM53C50U)4-5. Using the driving support systems
Use the cruise control to maintain a set speed without depressing the accelera-
tor pedal.
Indicators
Cruise control switch
Press the “ON/OFF” button to acti-
vate the cruise control.
Cruise control indicator will come on.
Press the button again to deactivate the
cruise control.
Accelerate or decelerate the vehicle
to the desired speed, and push the
lever down to set the speed.
“SET” indicator will come on.
The vehicle speed at the moment the
lever is released be comes the set speed.
Cruise control

: If equipped
Summary of functions
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2
Setting the vehicle speed
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