2010 Lexus IS250 windows

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1-4. Opening and closing the windows and moon roof
■The moon roof can be operated when
The “ENGINE START STOP” switch is in IGNITION ON mode.
■Moon roof open warning buzzer
The buzzer sounds and a message is shown on the multi-information display in the
instrument panel when the “ENGINE START STOP” switch is turned OFF and the
driver's door is opened with the moon roof open.
■Door lock linked moon roof operation
The moon roof can be opened and closed using the mechanical key. (P. 505)
■Operating the moon roof after turning the “ENGINE START STOP” switch OFF
The moon roof can be operated for approximately 45 seconds even after the
“ENGINE START STOP” switch is switched to ACCESSORY mode or turned
OFF. It cannot, however, be operated once either front door is opened.
■Jam protection function
If an object is detected between the moon roof and the frame while closing or tilting
down, travel is stopped and the moon roof opens slightly.
■To reduce moon roof wind noise
Drive with the moon roof opened to slightly before the fully open position as driving
with the moon roof opened fully will cause wind noise.
■Sunshade
The sunshade can be opened and closed manually. However, the sunshade will
open automatically when the moon roof is opened.

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1-4. Opening and closing the windows and moon roof
1
Before driving
■When the moon roof does not close normally
Perform the following procedure:
●If the moon roof closes but then re-opens slightly
Press and hold the “CLOSE” switch.*
1
The moon roof will close, reopen and pause for approximately 10 sec-
onds.*2 Then it will close again, tilt up and pause for approximately 1 sec-
ond. Finally, it will tilt down, open and close.
Check to make sure that the moon roof is completely closed and then
release the switch.
●If the moon roof tilts down but then tilts back up
Press and hold the “TILT” switch*
1 until the moon roof moves into the tilt
up position and stops.
Release the “TILT” switch once and then press and hold the “TILT” switch
again.*
1
The moon roof will pause for approximately 10 seconds in the tilt up posi-
tion.*2 Then it will adjust slightly and pause for approximately 1 second.
Finally, it will tilt down, open and close.
Check to make sure that the moon roof is completely closed and then
release the switch.
*
1: If the switch is released at the incorrect time, the procedure will have to be per-
formed again from the beginning.
*
2: If the switch is released after the above mentioned 10 second pause, automatic
operation will be disabled. In that case, press and hold the “CLOSE” or “TILT”
switch, and the moon roof will tilt up and pause for approximately 1 second.
Then it will tilt down, open and close. Check to make sure that the moon roof is
completely closed and then release the switch.
If the moon roof does not fully close even after performing the above procedure
correctly, have the vehicle inspected by your Lexus dealer.
■Customization that can be configured at Lexus dealer
Settings (e.g. linked door lock operation) can be changed.
(Customizable features P. 5 5 0 )
STEP1
STEP2
STEP1
STEP2
STEP3

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1-4. Opening and closing the windows and moon roof
CAUTION
■Opening the moon roof
Observe the following precautions.
Failing to do so may cause death or serious injury.
●Do not allow any passengers to put their hands or heads outside the vehicle while
it is moving.
●Do not sit on top of the moon roof.
■Closing the moon roof
Observe the following precautions.
Failing to do so may result in death or serious injury.
●Check to make sure that all passengers do not have any part of their bodies in a
position where they could be caught when the moon roof is being operated.
●Do not allow children to operate the moon roof.
Closing the moon roof on someone can cause death or serious injury.
■Jam protection function
●Never try jamming any part of your body to activate the jam protection function
intentionally.
●The jam protection function may not work if something gets caught just before
the moon roof fully closes.

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1
Before driving
1-5. Refueling
Opening the fuel tank cap
Perform the following steps to open the fuel tank cap.
■Before refueling the vehicle
Turn the “ENGINE START STOP” switch OFF and ensure that all
the doors and windows are closed.
■Opening the fuel tank cap
Press the opener switch.
Turn the fuel tank cap slowly to
open.
Hang the fuel tank cap on the
back of the fuel filler door.
STEP1
STEP2
STEP3

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1-6. Theft deterrent system
1
Before driving
■System maintenance
The vehicle has a maintenance-free type of alarm system.
■Items to check before locking the vehicle
To prevent unexpected triggering of the alarm and vehicle theft, make sure of the
following.
●Nobody is in the vehicle.
●The windows and moon roof are closed before the alarm is set.
●No valuables or other personal items are left in the vehicle.
■Tr i g g e r i n g o f t h e a l a r m
The alarm may be triggered in the following situations.
(Stopping the alarm deactivates the alarm system.)
●A person inside the vehicle opens a door, the trunk or hood.
●The battery is recharged or replaced when the vehicle is locked.
■When the battery is disconnected
Be sure to deactivate the alarm system.
If the battery is disconnected before deactivating the alarm system, the alarm may
be triggered when the battery is reconnected.
■Alarm-operated door lock
●When the alarm is operating, the doors are locked automatically to prevent
intruders.
●Do not leave the key inside the vehicle when the alarm is operating, and make
sure the key is not inside the vehicle when recharging or replacing the battery.
NOTICE
■To ensure the system correctly
Do not modify and remove the system. If modified or removed, the proper opera-
tion of the system cannot be guaranteed.

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2-1. Driving procedures
■Starting off on a hill (vehicles with an automatic transmission)
Hill-start assist control will operate. (P. 1 9 6 )
■Driving in the rain
●Drive carefully when it is raining, because visibility will be reduced, the windows
may become fogged-up, and the road will be slippery.
●Drive carefully when it starts to rain, because the road surface will be especially
slippery.
●Refrain from high speeds when driving on an expressway in the rain, because
there may be a layer of water between the tires and the road surface, preventing
the steering and brakes from operating properly.
■Breaking in your new Lexus
To extend the life of the vehicle, the following precautions are recommended to
observe:
●For the first 186 miles (300 km):
Avoid sudden stops.
●For the first 621 miles (1000 km):
• Do not drive at extremely high speeds.
• Avoid sudden acceleration.
• Do not drive continuously in the low gears.
• Do not drive at a constant speed for extended periods.
■Drum-in-disc type parking brake system
Your vehicle has a drum-in-disc type parking brake system. This type of brake sys-
tem needs bedding-down of the brake shoes periodically or whenever the parking
brake shoes and/or drum are replaced. Have your Lexus dealer perform the bed-
ding down.
■Operating your vehicle in a foreign country
Comply with the relevant vehicle registration laws and confirm the availability of the
correct fuel. (P. 5 2 2 )

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2-1. Driving procedures
2
When driving
CAUTION
■When starting the vehicle
With automatic transmission vehicles, always keep your foot on the brake pedal
while stopped with the engine running. This prevents the vehicle from creeping.
■When driving the vehicle
●Do not drive if you are unfamiliar with the location of the brake and accelerator
pedals to avoid depressing the wrong pedal.
• Accidentally depressing the accelerator pedal instead of the brake pedal will
result in sudden acceleration that may lead to an accident that could result in
death or serious injury.
• When backing up, you may twist your body around, leading to a difficulty in
operating the pedals. Make sure to operate the pedals properly.
• Make sure to keep a correct driving posture even when moving the vehicle
only slightly, allowing you to depress the brake and accelerator pedals prop-
erly.
• Depress the brake pedal using your right foot. Depressing the brake pedal
using your left foot may delay response in an emergency, resulting in an acci-
dent.
●Do not drive the vehicle over or stop the vehicle near flammable materials.
●With automatic transmission vehicles, do not let the vehicle roll backwards while
the shift lever is in a driving position, or roll forward while the shift lever is in R.
Doing so may cause the engine to stall or lead to poor brake and steering perfor-
mance, resulting in an accident or damage to the vehicle.
●If the smell of exhaust is noticed inside the vehicle, open the windows and check
that the trunk is closed. Large amounts of exhaust in the vehicle can cause driver
drowsiness and an accident, resulting in death or a serious health hazard. Have
the vehicle inspected by your Lexus dealer immediately.
●On vehicles with an automatic transmission, do not shift the shift lever to P while
the vehicle is moving.
Doing so can damage the transmission and may result in a loss of vehicle control.
●Do not shift the shift lever to R while the vehicle is moving forward.
Doing so can damage the transmission and may result in a loss of vehicle control.
●Do not shift the shift lever to D (vehicles with an automatic transmission) or 1
(vehicles with a manual transmission) while the vehicle is moving backward.
Doing so can damage the transmission and may result in a loss of vehicle control.

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3-1. Using the air conditioning system and defogger
Rear outlets
Direct air flow to the left or right,
up or down
Turn the knob fully to the outside
of the vehicle to close the vent
■Using the automatic mode
Fan speed is adjusted automatically in accordance with the temperature setting and
ambient conditions. As a result, the following may occur.
●Immediately after is pressed, the fan may stop for a while until warm or
cool air is ready to flow.
●Cool air may flow to the area around the upper body when the heater is on.
■Using the system in recirculated air mode
The windows will fog up more easily if recirculated air mode is used for an extended
period.
■Switching between outside air and recirculated air modes
Recirculated air mode or outside air mode may be automatically switched in accor-
dance with the temperature setting and the inside temperature.
■Window defogger feature
Recirculated air mode may automatically switch to
(outside air) mode in situ-
ations where the windows need to be defogged.
■When outside air temperature approaches 32F (0C)
The air conditioning system may not operate even when is pressed.
■When the indicator light on flashes
Press and turn off the air conditioning system before turning it on once
more. There may be a problem in the air conditioning system if the indicator light
continues to flash. Turn the air conditioning system off and have it inspected by your
Lexus dealer.