warning light Lexus IS F 2008 Audio/video System / LEXUS 2008 IS F OWNER'S MANUAL (OM53714U)

TABLE OF CONTENTSIndex
2
1-1. Key information ........................... 20Keys ...................................................... 20
1-2. Opening, closing and locking the doors and trunk .................. 22
Smart access system with push-button start .......................... 22
Wireless remote control .............. 34
Doors.................................................... 37
Trunk...................................................... 41
1-3. Adjustable components (seats, mirrors,
steering wheel) .......................... 44
Front seats .......................................... 44
Driving position memory ............. 45
Seat position memory ................... 48
Head restraints................................ 50
Seat belts ............................................. 51
Steering wheel.................................. 57
Anti-glare inside rear view mirror ................................................ 59
Outside rear view mirrors ........... 60
1-4. Opening and closing the windows and moon roof .......... 62
Power windows................................ 62
Moon roof .......................................... 64 1-5. Refueling ........................................ 67
Opening the fuel tank cap........... 67
1-6. Theft deterrent system............... 70 Engine immobilizer system ......... 70
Alarm.................................................... 72
Theft prevention labels (U.S.A.) ............................................. 74
1-7. Safety information ....................... 75 Correct driving posture ............... 75
SRS airbags ....................................... 77
Front passenger occupant classification system ................... 88
Child restraint sy stems ................. 93
Installing child restraints ............... 96
2-1. Driving procedures................... 106 Driving the vehicle ........................ 106
Engine (ign ition) switch ................ 114
Automatic transmission............... 118
Turn signal lever............................. 126
Parking brake .................................. 127
2-2. Instrument cluster ..................... 128 Gauges and meters ..................... 128
Indicators and warning lights ... 132
Multi-information display........... 135
1Before driving
2When driving

1
2
3
4
5
6
7
5
5-2. Steps to take in an emergency .............................. 350
If a warning light turns on or a warning buzzer
sounds... ....................................... 350
If a warning message is displayed ...................................... 360
If you have a flat tire..................... 374
If the engine will not start ......... 383
If the shift lever cannot be shifted from P ............................. 384
If you lose your keys ................... 385
If the electronic key does not operate properly ...................... 386
If the vehicle battery is discharged .................................. 389
If your vehicle overheats ........... 392
If the vehicle becomes stuck ... 395
6-1. Specifications............................ 398 Maintenance data (fuel, oil level, etc.).................... 398
Fuel information ........................... 409
Tire information.............................. 412
6-2. Customization .......................... 424 Customizable features .............. 424
6-3. Initialization ............................... 429 Items to initialize ........................... 429 Reporting safety defects
for U.S. owners........................... 432
Seat belt instructions for Canadian owners
(in French) .................................... 433
Abbreviation list .................................. 436
Alphabetical index.............................. 438
What to do if... ...................................... 449
6Vehicle specifications
7For owners
Index

78
1-7. Safety information
Airbag system componentsYour vehicle is equipped with AD VANCED AIRBAGS designed based
on US motor vehicle safety standa rds (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 con sists of the front passenger occupant
classification sensor etc.
The main SRS airbag system componen ts are shown above. The SRS air-
bag system is controlled by the airb ag sensor assembly. The airbag sen-
sor assembly consists of a safing sensor and an airbag sensor. Knee airbags
Front passenger airbag
Curtain shield airbags
“AIR BAG ON” and “AIR BAG
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
Front passenger occupant
classification 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 chemica l reaction in the inflators quickly
fills the airbags with non-toxic gas to he lp restrain the motion of the occu-
pants.
■SRS warning light
This warning light system monitors the airb ag 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, inte rconnecting wiring and power sources.
(  P. 3 5 1 )
■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 , airbag cover and inflator) as well as
the front seats, and parts of the front pill ar, rear pillar and roof side rail, may be
hot for several minutes. The airbag itself may also be hot.
●The 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 thresh old level, the SRS front airbags and the
seat belt pretensioners ma y 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. 88)

88
1-7. Safety information
Front passenger occupant classification system
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
“AIR BAG OFF” indicator light
“AIR BAG ON” indicator light
Front passenger’s seat belt reminder light

89
1-7. Safety information
1
Before driving
Condition and operation in the front passenger occupant classification system
■Adult*1
■Child *3 or child restraint system*4
Indicator/
warning light “AIR BAG ON” and “AIR BAG OFF” indi-
cator lights “A I R B A G
ON”
SRS warning light Off
Front passenger’s seat belt reminder light Flashing
*2
DevicesFront passenger airbag
Activated
Side airbag on the front
passenger seat
Front passenger knee airbag
Curtain shield airbag in the front passenger side
Front passenger’s seat belt pretensioner
Indicator/
warning light “AIR BAG ON” and “AIR BAG OFF” indi-
cator lights “A I R B A G
OFF”
*5
SRS warning light Off
Front passenger’s seat belt reminder light Flashing
*2
DevicesFront passenger airbag
Deactivated
Side airbag on the front
passenger seat
Front passenger knee airbag
Curtain shield airbag in the front passenger sideActivated
Front passenger’s seat belt pretensioner

90
1-7. Safety information
■Unoccupied
■ 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 outgrow n 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.
Indicator/
warning light “AIR BAG ON” and “AIR BAG OFF” indi-
cator lightsNot illuminated
SRS warning light Off
Front passenger’s seat belt reminder light
Devices Front passenger airbag
Deactivated
Side airbag on the front
passenger seat
Front passenger knee airbag
Curtain shield airbag in the front passenger sideActivated
Front passenger’s seat belt pretensioner Deactivated
Indicator/
warning light “AIR BAG ON” and “AIR BAG OFF” indi-
cator lights “A I R B A G
OFF”
SRS warning light On
Front passenger’s seat belt reminder light Off
Devices Front passenger airbag
Deactivated
Side airbag on the front
passenger seat
Front passenger knee airbag
Curtain shield airbag in the front passenger sideActivated
Front passenger’s seat belt pretensioner

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1-7. Safety information
CAUTION
■Front passenger occupant classification system precautions
●If an adult sits in the front passenger se at, the “AIR BAG ON” indicator light is illu-
minated. If the “AIR BAG OFF” indicator is illuminated, ask the passenger to sit
up straight, well back in the seat, feet on the floor, and with the seat belt worn cor-
rectly. If the “AIR BAG OFF” indicator still remains illuminated, either ask the pas-
senger to move to the rear seat, or if th at is not possible, move the front passenger
seat fully rearward.
●When it is unavoidable to install the forw ard-facing child restraint system on the
front passenger seat, install the child rest raint system on the front passenger seat
in the proper order. ( P. 9 6 )
●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.

When driving2
105
2-1. Driving procedures ....... 106Driving the vehicle.................. 106
Engine (ignition) switch .......... 114
Automatic transmission ......... 118
Turn signal lever ....................... 126
Parking brake ........................... 127
2-2. Instrument cluster .......... 128 Gauges and meters ................ 128
Indicators and warning lights ......................................... 132
Multi-information display ..... 135
2-3. Operating the lights and windshield wipers......... 139
Headlight switch...................... 139
Fog light switch ........................ 142
Windshield wipers and washer ..................................... 143
Headlight cleaner switch...... 146 2-4. Using other driving
systems .......................... 147
Cruise control........................... 147
Dynamic radar cruise control ..................................... 150
Intuitive parking assist ........... 160
Driving assist systems ............ 166
PCS (Pre-Collision System) ....... 173
2-5. Driving information........ 176 Cargo and luggage ................. 176
Vehicle load limits .................... 179
Winter driving tips .................. 180
Trailer towing ........................... 182
Dinghy towing .......................... 183

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2-1. Driving procedures
2
When driving
■If the automatic transmission fluid temperature warning light comes on
■AI-SHIFT
The AI-SHIFT automatically selects the optimal gear according to driver perfor-
mance and driving conditions.
The AI-SHIFT automatically operates when the shift lever is in the D position. How-
ever, operating the “-” paddle shift switch will restrict the function’s operation. (Shift-
ing the shift lever to the M po sition cancels the function.)
CAUTION
■When driving on slippery road surfaces
Be careful of downshifting and sudden accele ration, as this could result in the vehi-
cle skidding to the side or spinning.
If the automatic transmission fluid tempera-
ture warning light comes on while driving,
make sure you return to normal D position
driving and reduce speed by easing off the
accelerator pedal. Stop the vehicle in a safe
place, shift the shift lever to the P position and
let the engine idle until the warning light goes
out.
When the warning light goes out, the vehicle
can be driven again.
If the warning light does not go out after wait-
ing a while, have your vehicle inspected by
your Lexus dealer.