2007 Lexus IS250 warning light

TABLE OF CONTENTSIndex
ii
1-1. Key information .............................. 2
Keys ......................................................... 2
1-2. Opening, closing and locking
the doors and trunk ..................... 4
Smart access system with
push-button start ............................. 4
Wireless remote control ............... 16
Doors..................................................... 19
Trunk..................................................... 23
1-3. Adjustable components ............ 26
Front seats .......................................... 26
Driving position memory ............. 28
Seat position memory .................... 31
Head restraints................................. 33
Seat belts ............................................ 34
Steering wheel
(manually adjustable type) ....... 40
Steering wheel
(power-adjustable type)............. 41
Anti-glare inside rear view
mirror ................................................ 42
Outside rear view mirrors ........... 43
1-4. Opening and closing the
windows and moon roof .......... 45
Power windows................................ 45
Moon roof ......................................... 481-5. Refueling ......................................... 51
Opening the fuel tank cap............ 51
1-6. Anti-theft system ......................... 54
Engine immobilizer system ......... 54
Alarm.................................................... 56
Theft prevention labels
(U.S.A.) ............................................ 58
1-7. Safety information ....................... 59
Correct driving posture ............... 59
SRS airbags ........................................ 61
Front passenger occupant
classification system .................... 72
Child restraint systems ................. 77
Installing child restraints .............. 80
2-1. Driving procedures..................... 90
Driving the vehicle .......................... 90
Starting the engine ......................... 98
Automatic Transmission ............. 101
Manual Transmission................... 105
Turn signal lever............................. 107
Parking brake ................................. 108
2-2. Instrument cluster ..................... 109
Gauges and meters ..................... 109
Indicators and warning
lights................................................... 115
1Before driving
2When driving

1
2
3
4
5
6
7
v
Fuel pump shut off system ........ 336
Event data recorder .................... 337
5-2. Steps to take in an
emergency .............................. 339
If a warning light turns on or
a warning buzzer
sounds... ....................................... 339
If a warning message is
displayed....................................... 344
If you have a flat tire.................... 358
If the engine will not start .......... 366
If the shift lever cannot be
shifted from P .............................. 367
If you lose your keys ................... 368
When the electronic key
does not operate properly .... 369
If the vehicle battery is
discharged ................................... 372
If your vehicle overheats ........... 375
If the vehicle becomes
stuck................................................ 377
6-1. Specifications............................ 380
Maintenance data ....................... 380
Fuel information ............................ 395
Tire information............................ 398
6-2. Customization .......................... 406
Customizable features .............. 4066-3. Initialization .................................. 411
Items to initialize .............................. 411
Reporting safety defects
for U.S. owners............................ 414
Alphabetical index................................ 416
What to do if... ...................................... 425
6Vehicle specifications
7For US owners
Index

62
1-7. Safety information
Airbag system components
Your 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 air-
bag system is controlled by the airbag sensor assembly. The airbag sen-
sor assembly consists of a safing sensor and an airbag sensor.Knee airbags
Front passenger airbag
Curtain shield airbags
AIRBAG ON and AIRBAG
OFF indicator lights
Side airbags
Side and curtain shield airbag
sensors
Curtain shield airbag sensorsSRS 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

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1-7. Safety information
1
Before driving
In certain types of severe frontal or side impacts, the SRS airbag system
triggers the airbag inflators. A chemical reaction in the inflators quickly
fills the airbags with non-toxic gas to help restrain the motion of the occu-
pants.
■SRS warning light
This warning light system monitors the airbag sensor assembly, front airbag sensors,
side and curtain shield airbag sensor assemblies, curtain shield airbag sensor
assemblies, driver's seat position sensor, driver's seat belt buckle switch, seat belt
pretensioner assemblies, inflators, interconnecting wiring and power sources.
(P. 3 4 0 )
■If the SRS airbags deploy (inflate)
●Bruising and slight abrasions may result from contact with a deploying (inflating)
SRS airbag.
●A loud noise and white powder will be emitted.
●Parts of the airbag module (steering wheel hub, airbag cover and inflator) as
well as the front seats, and parts of the front pillar, rear pillar and roof side rail,
may be hot for several minutes. The airbag itself may also be hot.
●The front windshield may crack.
■Operating conditions (front airbags)
●The SRS front airbags will deploy if the severity of the frontal impact is above the
designed threshold level, comparable to an approximate 15 mph (25 km/h) col-
lision when the vehicle impacts straight into a fixed barrier that does not move
or deform.
However, this threshold velocity will be considerably higher if the vehicle strikes
an object, such as a parked vehicle or sign pole, which can move or deform on
impact, or if the vehicle is involved in an underride collision (e.g. a collision in
which the front of the vehicle "underrides", or goes under, the bed of a truck, etc.).
●It is possible that in some collisions where the forward deceleration of the vehi-
cle is very close to the designed threshold level, the SRS front airbags and the
seat belt pretensioners may not activate together.
●The SRS front passenger airbag will not activate if there is no passenger sitting
in the front passenger seat. However, the front passenger airbag may deploy if
luggage is put in the seat, or the seat belt is fastened, even if the seat is unoccu-
pied. (P. 7 2 )

72
1-7. Safety information
Front passenger occupant classification system
Condition and operation in the front passenger occupant classification system
■Adult*1
Indicator/
warning lightAIRBAG ON and AIRBAG OFF indicator lightsAIRBAG ON
SRS warning light Off
Front passenger’s seat belt reminder light
Flashing
*2
DevicesFront passenger airbag
Activated Side airbag on the front
passenger seatCurtain shield airbag in the front passenger side
Front passenger knee airbag
Front passenger’s seat belt pretensioner
Your vehicle is equipped with a front passenger occupant classification sys-
tem. This system detects the conditions of the front passenger seat and
activates or deactivates the devices for front passenger.
SRS warning light
AIRBAG OFF indicator light
AIRBAG ON indicator light
Front passenger’s seat belt reminder light
With navigation system
Without navigation system

73
1-7. Safety information
1
Before driving
■Child *3 or child restraint system*4
■Unoccupied
Indicator/
warning lightAIRBAG ON and AIRBAG OFF indicator lightsAIRBAG OFF
SRS warning light
Off
*5
Front passenger’s seat belt reminder light
Flashing*2
DevicesFront passenger airbag
Deactivated
Side airbag on the front
passenger seatCurtain shield airbag in the front passenger sideActivated
Front passenger knee airbag Deactivated
Front passenger’s seat belt pretensioner Activated
Indicator/
warning light
AIRBAG ON and AIRBAG OFF indicator lights Not illuminated
SRS warning light
Off
Front passenger’s seat belt reminder light
DevicesFront passenger airbag
Deactivated
Side airbag on the front
passenger seat
Curtain shield airbag in the front passenger sideActivated
Front passenger knee airbag
Deactivated
Front passenger’s seat belt pretensioner

74
1-7. Safety information
■There is a malfunction in the system
*1: The system judges a person of adult size as an adult. When a smaller
adult sits in the front passenger seat, the system may recognize him/
her as a child depending on his/her physique and posture.
*2: In the event the front passenger does not wear a seat belt.
*3: When a larger child who has outgrown a child restraint system sits in
the front passenger seat, the system may recognize him/her as an
adult depending on his/her physique or posture.
*4: Never install a rear-facing child restraint system on the front passen-
ger seat. A forward-facing child restraint system should only be
installed on the front passenger seat when it is unavoidable. (P. 77)
*5: In case indicator is not illuminated, consult this manual as for installing
the child restraint system properly. (P. 8 0 )
Indicator/
warning lightAIRBAG ON and AIRBAG OFF indicator lightsAIRBAG OFF
SRS warning light On
Front passenger’s seat belt reminder light Off
DevicesFront passenger airbag
Deactivated
Side airbag on the front
passenger seat
Curtain shield airbag in the front passenger sideActivated
Front passenger knee airbag Deactivated
Front passenger’s seat belt pretensioner Activated

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1-7. Safety information
CAUTION
■Front passenger occupant classification system precautions
●When it is unavoidable to install the forward-facing child restraint system on the
front passenger seat, install the child restraint system on the front passenger seat
in the proper order. (P. 8 0 )
●Do not modify or remove the front seats.
●Do not kick the front passenger seat or subject it to severe impact. Otherwise,
the SRS warning light may come on to indicate a malfunction of the detection sys-
tem. In this case, contact your Lexus dealer immediately.
●Child restraint systems installed on the rear seat should not contact the front seat-
backs.
●Do not use a seat accessory, such as a cushion or seat cover, that covers the seat
cushion surface.
●Do not modify or replace the upholstery of the front seat.