key Lexus IS250 2008 Owner's Guide

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08_IS350/250_U_(L/O_0708)
1-4. Opening and closing the windows and moon roof
Power windows
Lock switchPress the switch down to lock pas-
senger window switches.
Use this switch to prevent children
from accidentally opening or clos-
ing a passenger window.
The power windows can be opened and closed using the following
switches.
Closing
One-touch closing
*
Opening
One-touch opening
*
*: Pushing the switch in the oppo-site direction will stop window
travel partway.
■The power windows can be operated when
The “ENGINE START STOP” switch is in IGNITION ON mode.
■Door lock linked window operation
●The power windows can be opened and closed using the mechanical key.
(→ P. 3 9 4 )
●The power windows can be opened using the wireless remote control. ( →P.
34)

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1-4. Opening and closing the windows and moon roof
1
Before driving
08_IS350/250_U_(L/O_0708)
■The moon roof can be operated when
The “ENGINE START STOP” switch is in IGNITION ON mode.
■Door lock linked moon roof operation
●The moon roof can be opened and closed using the mechanical key. (→P. 3 9 4 )
●The moon roof can be opened using the wireless remote control. ( →P. 3 4 )
■Operating the moon roof after turnin g 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.
■If the moon roof can not be closed
Pressing the switch of at for more than 10 seconds closes the moon roof.
■To reduce moon roof wind noise
●Drive with the moon roof switch in when you open and close the moon
roof manually.
●Drive with the moon roof where it has stopped when opening automatically.
■Sunshade
The sunshade can be opened and closed manually. However, the sunshade will
open automatically when the moon roof is opened.
■Customization that can be configured at Lexus dealer
Settings (e.g. linked door lock operation) can be changed. (Customizable features
→P. 4 3 6 )

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08_IS350/250_U_(L/O_0708)
1-6. Theft deterrent system
Engine immobilizer system
■System maintenance
The vehicle has a maintenance-free type of engine immobilizer system.
■Conditions that may cause the system to malfunction
●If the grip portion of the key is in contact with a metallic object
●If the key is in close proximity to or touching a key to the security system (key
with a built-in transponder chip) of another vehicle
■Certifications for the engine immobilizer system
For vehicles sold in the U.S.A.
FCC ID: NI4TMIMB-1
This device complies with Part 15 of the FCC Rules. Operation is subject to the fol-
lowing two conditions: (1) this device may not cause harmful interference, and (2)
this device must accept any interference received, including interference that may
cause undesired operation. For vehicles sold in Canada
Operation is subject to the following two conditions: (1) this device may not cause
interference, and (2) this device must accept any interference, including interfer-
ence that may cause undesired operation of the device.
The vehicle's keys have built-in tran sponder chips that prevent the engine
from starting if the key has not been previously registered in the vehicle's
on-board computer.
Never leave the keys inside the vehicle when you leave the vehicle.
The indicator light flashes after
the “ENGINE START STOP”
switch has been turned OFF to
indicate that the system is oper-
ating.

73
1-6. Theft deterrent system
1
Before driving
08_IS350/250_U_(L/O_0708)
CAUTION
Changes or modifications not expressly approved by the party responsible for com-
pliance could void the user’s authority to operate the equipment.
NOTICE
■To prevent damage to the key
Do not modify, remove or disable the engine immobilizer system. If any unautho-
rized changes or modifications are made, the proper operation of the system can-
not be guaranteed.

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1-6. Theft deterrent system
08_IS350/250_U_(L/O_0708)
Alarm
The system sounds the alarm and flashes lights when forcible entry is
detected.
■Triggering of the alarm
The alarm is triggered in the following situations.
●A locked door or trunk is unlocked or opened in any way other
than using the entry function, wireless remote door lock function
or mechanical key with the alarm being set.
● The hood is opened with the alarm being set.
■ Setting the alarm system
Close the doors, trunk and
hood, and lock all doors using
the entry function, wireless
remote door lock function or
mechanical key.
The system will be set automati-
cally after 30 seconds.
The indicator light changes from
being on to flashing when the
system is set.
■Deactivating or stopping the alarm
Do one of the following to deactivate or stop the alarm.
●Unlock the doors or trunk using the entry function, wireless
remote door lock functi on or mechanical key.
● Turn the “ENGINE START STOP” switch to ACCESSORY or
IGNITION ON mode. (The alarm will be deactivated or stopped
after a few seconds.)

109
2-1. Driving procedures
2
When driving
08_IS350/250_U_(L/O_0708)
Starting on a steep uphillAutomatic transmission Firmly set the parking brake and shift the shift lever to D.
Gently depress the accelerator pedal.
Release the parking brake.
Manual transmission
With the parking brake firmly set and the clutch pedal fully
depressed, shift the shift lever into 1.
Lightly depress the accelerator pedal at the same time as gradu-
ally releasing the clutch pedal.
Release the parking brake.
■Parking the vehicle
Automatic transmission
With the shift lever in D, push the brake pedal.
Set the parking brake. (→P. 1 2 9 )
Shift the shift lever to P. (→ P. 122)
Press the “ENGINE START STOP” switch and stop the engine.
Lock the door, making sure that you have the electronic key on
your person.
Manual transmission
With the clutch pedal fully depressed, push the brake pedal.
Set the parking brake. (→P. 1 2 9 )
Shift the shift lever into N. (→P. 1 2 6 )
Press the “ENGINE START STOP” switch to stop the engine.
Lock the door, making sure that you have the electronic key on
your person.
STEP1
STEP2
STEP3
STEP4
STEP5
STEP1
STEP2
STEP3
STEP4
STEP5
STEP1
STEP2
STEP3
STEP1
STEP2
STEP3

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2-1. Driving procedures
2
When driving
08_IS350/250_U_(L/O_0708)
Engine (ignition) switch
Modes can be switched by pressing the “ENGINE START STOP” switch
when carrying the electronic key on your person. (The engine can be
started in any mode by operating the switch at the same time as depressing
the brake pedal or clutch pedal.)
■Starting the engine
Automatic transmission
Check that the parking brake is set.
Check that the shift lever is set in P.
Sit in the driver’s seat and firmly depress the brake pedal.
The “ENGINE START STOP” switch indicator turns green.
Press the “ENGINE START
STOP” switch.
STEP1
STEP2
STEP3
STEP4

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2-1. Driving procedures
08_IS350/250_U_(L/O_0708)
■If the engine does not start
The engine immobilizer system may not have been deactivated. (
→P. 7 2 )
■When the “ENGINE START STOP” switch indicator flashes in amber
The system may be malfunctioning. Have the vehicle inspected by your Lexus
dealer immediately.
■Auto power OFF function
If the vehicle is left in ACCESSORY mode for more than an hour with the shift lever
in P, the “ENGINE START STOP” switch will automatically turn OFF.
■Electronic key battery depletion
→P. 2 8
■When the electronic key battery is fully discharged
→P. 3 2 5
■Conditions affecting operation
→P. 2 6
■Note for the entry function
→P. 2 9
CAUTION
■When starting the engine
Always start the engine while sitting in the driver’s seat. Do not press the accelera-
tor while starting the engine under any circumstances.
Doing so may cause an accident resulting in death or serious injury.
■Caution when driving
Do not touch the “ENGINE START STOP” switch while driving.
Pressing and holding the “ENGINE START STOP” switch will stop the engine,
which may lead to an unexpected accident.

145
2-3. Operating the lights and windshield wipers
2
When driving
08_IS350/250_U_(L/O_0708)
■Automatic light off system
●When the headlights comes on: The headlights and tail lights turn off 30 sec-
onds after a door is opened and closed if the “ENGINE START STOP” switch
has been switched to ACCESSORY mode or turned OFF. (The light turns off
immediately if on the key is pressed after all doors are locked.)
●When only the tail lights come on: The tail lights turn off automatically if the
“ENGINE START STOP” switch is switched to ACCESSORY mode or turned
OFF and driver’s door is opened.
To turn the lights on again, switch to IGNITION ON mode, or turn the light switch
off once and then back to or .
■Automatic headlight leveling system (vehicles with discharge headlights)
The level of the headlights is automatically adjusted according to the number of
passengers and the loading condition of the vehicle to ensure that the headlights do
not interfere with other road users.
■If flashes... (vehicles with discharge headlights)
It may indicate a malfunction in the system. Contact your Lexus dealer.
■Customization that can be configured at Lexus dealer
Settings (e.g. light sensor sensitivity) can be changed. (Customizable features →P.
436)
NOTICE
■To prevent battery discharge
Do not leave the lights on longer than necessary when the engine is not running.

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3
Interior features
08_IS350/250_U_(L/O_0708)
3-3. Using the interior lights
Interior lights list
Your Lexus is equipped with the illuminated entry system to assist in enter-
ing the vehicle. Owing to the function of the system, the lights shown in the
following illustration automatically turn on/off according to the presence of
the electronic key, whether the door s are locked/unlocked, whether the
doors are opened/closed, and the “ENGINE START STOP” switch mode.
Front personal lights (→P. 2 3 4 )
Front interior light ( →P. 2 3 4 )
Front overhead courtesy light
Rear personal lights ( →P. 2 3 4 )
Rear interior light
Rear overhead courtesy light
Shift lever lighting (when “ENGINE START STOP” switch is in
ACCESSORY or IGNITION ON mode)
Front foot well lighting