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TABLE OF CONTENTSIndex
IS350/250_U
2
1-1. Key informationKeys ...................................................... 24
1-2. Opening, closing and locking the doors and trunk
Smart access system with push-button start .......................... 28
Wireless remote control .............. 40
Doors.................................................... 43
Trunk..................................................... 47
1-3. Adjustable components (seats, mirrors,
steering wheel)
Front seats ........................................... 51
Driving position memory (driver’s seat) ................................. 53
Seat position memory (front passenger’s seat) ............. 57
Head restraints................................. 59
Seat belts ............................................ 62
Steering wheel (manually adjustable type)............................. 69
Steering wheel (power-adjustable type)............ 70
Anti-glare inside rear view mirror ................................................ 72
Outside rear view mirrors ........... 73 1-4. Opening and closing the
windows and moon roof
Power windows................................ 76
Moon roof .......................................... 79
1-5. Refueling Opening the fuel tank cap........... 83
1-6. Theft deterrent system Engine immobilizer system ......... 86
Alarm................................................... 88
Theft prevention labels (U.S.A.) ............................................. 90
1-7. Safety information Correct driving posture ................ 91
SRS airbags ....................................... 93
Front passenger occupant classification system .................. 104
Child restraint systems ............... 109
Installing child restraints ............... 113
1Before driving
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IS350/250_U
10
A
Power window
switches
P. 76
Pictorial indexInterior
Seat belts P. 62
SRS front passenger
airbag
P. 93
SRS knee airbags
P. 93
SRS driver airbag P. 93
Floor mat P. 359
Bottle holders/door pockets P. 338Head restraints P. 59
Front seats P. 51
Cup holders P. 336
SRS side airbags P. 93
Console box P. 334
Power outlet P. 347
Ashtrays P. 345
Cup holders P. 336
Armrest
Console box
∗
P. 354
P. 334
AUX adapter
USB adapter P. 275
P. 264, 275
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IS350/250_U
11
Anti-glare inside rear view mirror P. 72
Personal lights P. 331
Moon roof switches ∗ P. 79
Personal lights P. 331
Interior lights P. 331
Coat hooks P. 358
SRS curtain shield airbags P. 93
A
“SOS” button ∗ P. 373
Compass P. 369
Garage door opener switches P. 363
Vanity mirrors P. 340
Sun visors P. 339
Interior lights P. 331
∗: If equipped
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IS350/250_U
20
Installation of a mobile two-way radio system
As the installation of a mobile two-way radio system in your vehicle could affect
electronic systems such as the multiport fuel injection system/sequential multiport
fuel injection system, cruise control system, anti-lock brake system, SRS airbag sys-
tem and seat belt pretensioner system, be sure to check with your Lexus dealer for
precautionary measures or special instructions regarding installation.
Scrapping of your Lexus
The SRS airbag and seat belt pretensioner devices in your Lexus contain explosive
chemicals. If the vehicle is scrapped with the airbags and seat belt pretensioners left
as they are, this may cause an accident such as fire. Be sure to have the systems of
the SRS airbag and seat belt pretensioner removed and disposed of by a qualified
service shop or by your Lexus dealer before you scrap your vehicle.
Perchlorate Material
Special handling may apply, See www.dtsc.ca.gov/hazardouswaste/perchlorate.
Your vehicle has components that may contain perchlorate. These components may
include airbag, seat belt pretensioners, and wireless remote control batteries.
Page 24 of 578

Before driving1
23
IS350/250_U
1-1. Key informationKeys ............................................... 24
1-2. Opening, closing and locking the doors and
trunk
Smart access system with push-button start ................... 28
Wireless remote control ........ 40
Doors ............................................ 43
Trunk ............................................. 47
1-3. Adjustable components (seats, mirrors,
steering wheel)
Front seats .................................... 51
Driving position memory (driver’s seat) ........................... 53
Seat position memory (front passenger’s seat) ........ 57
Head restraints .......................... 59
Seat belts ..................................... 62
Steering wheel (manually adjustable type) ...................... 69
Steering wheel (power-adjustable type) ....... 70 Anti-glare inside rear view
mirror......................................... 72
Outside rear view mirrors...... 73
1-4. Opening and closing the windows and moon roof
Power windows ........................... 76
Moon roof ................................... 79
1-5. Refueling Opening the fuel tank cap ..... 83
1-6. Theft deterrent system Engine immobilizer system ........................................ 86
Alarm............................................ 88
Theft prevention labels (U.S.A.)...................................... 90
1-7. Safety information Correct driving posture .......... 91
SRS airbags ................................ 93
Front passenger occupant classification system............ 104
Child restraint systems ......... 109
Installing child restraints........ 113
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91
1
Before driving
IS350/250_U
1-7. Safety information
Correct driving posture
Drive in a good posture as follows:
Sit upright and well back in
the seat. (→P. 5 1 )
Adjust the position of the seat
forward or backward to
ensure the pedals can be
reached and easily
depressed to the extent
required. ( →P. 5 1 )
Adjust the seatback so that
the controls are easily opera-
ble.
Adjust the tilt and telescopic
positions of the steering
wheel downward so the
airbag is facing your chest.
(→ P. 6 9 , 7 0 )
Lock the head restraint in
place with the center of the
head restraint closest to the
top of your ears. ( →P. 5 9 )
Wear the seat belt correctly.
(→ P. 6 2 )
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93
1
1-7. Safety information
Before driving
IS350/250_U
SRS airbags
The SRS airbags inflate when the vehicle is subjected to certain types of
severe impacts that may cause significant injury to the occupants. They
work together with the seat belts to help reduce the risk of death or serious
injury.
SRS front airbags
SRS driver airbag/front passenger airbag
Can help protect the head and chest of the driver and front passen-
ger from impact with interior components.
SRS knee airbags
Can help provide driver and front passenger protection.
SRS side and curtain shield airbags
SRS side airbags
Can help protect the torso of the front seat occupants.
SRS curtain shield airbags
Can help protect primarily the head of outside occupants.
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94
1-7. Safety information
IS350/250_U
Airbag system componentsYour vehicle is equipped with ADVANCED AIRBAGS designed based
on US motor vehicle safety standards (FMVSS208). The airbag system
controls airbag deployment power for the driver and front passenger. The
driver airbag system consists of the driver seat’s position sensor etc. The
front passenger’s airbag system consists of the front passenger occupant
classification sensor etc.
The main SRS airbag system components are shown above. The SRS
airbag system is controlled by the airbag sensor assembly. The airbag
sensor assembly consists of a sa fing sensor and an airbag sensor.
Knee airbags
Front passenger airbag
Curtain shield airbags
“A I R B A G O N ” a n d “A I R B A G
OFF” indicator lights
Side airbags
Side and curtain shield airbag
sensors
Curtain shield airbag sensors
SRS warning light
Driver airbag
Driver's seat belt buckle switch
Driver's seat position sensor
Front passenger’s seat belt
buckle switch
Airbag sensor assembly
Occupant detection system
(ECU and sensors)
Front airbag sensors