belt Lexus IS250 2008 Workshop Manual

362
5-2. Steps to take in an emergency
08_IS350/250_U_(L/O_0708)
Follow the correction procedures.After taking the specified steps to correct the suspected problem, check
that the warning light turns off.
Warning lightWarning light/Details
(U.S.A.)

(Canada)
“ABS” warning light Indicates a malfunction in:
•The ABS;
• The brake assist system.
Electric power steering system warning lightIndicates a malfunction in the EPS (Electric Power Steering)
system.
Pre-collision system warning light (if equipped)Indicates a malfunction in the pre-collision system.
Warning lightWarning light/DetailsCorrection procedure
Open door warning light
(warning buzzer)
*1
Indicates that a door or a
trunk is not fully closed.
Check that all doors and the
trunk are closed.
Low fuel level warning light
Remaining fuel
(Approximately 2.9 gal. [11 L,
2.4 Imp.gal.] or less)
Refuel the vehicle.
(On the instru-ment cluster)
Driver’s seat belt reminder
light (warning buzzer)
*2
Warns the driver to fasten
his/her seat belt.Fasten the seat belt.

5
When trouble arises
363
5-2. Steps to take in an emergency
08_IS350/250_U_(L/O_0708)
*1:Open door warning buzzer:
→P. 3 7 3
*2:Driver's and front passenger’s seat belt reminders:
The driver’s and front passenger’s seat belts reminder sounds to alert the driver
and front passenger that his or her sear belt is not fastened. The buzzer sounds
intermittently for 10 seconds after the vehicle has reached a speed of at least 12
mph (20 km/h). Then, if the seat belt is still unfastened, the buzzer will sound in a
different tone for 20 more seconds.
Warning lightWarning light/DetailsCorrection procedure
(On the center
panel)
Front passenger’s seat belt
reminder light
(warning buzzer)
*2
Warns the front passenger to
fasten his/her seat belt.
Fasten the seat belt.
Tire pressure warning light
When the light comes on:
Low tire inflation pressureAdjust the tire inflation pres-
sure.
When the light comes on after
blinking for 1 minute:
Malfunction in the tire pres-
sure warning system
Have the system checked by
your Lexus dealer.
Master warning lightA buzzer sounds and the
warning light comes on and
flashes to indicate that the
master warning system has
detected a malfunction.
→ P. 3 6 9

364
5-2. Steps to take in an emergency
08_IS350/250_U_(L/O_0708)
■If the malfunction indicator lamp comes on while driving
First check the following:
●Is the fuel empty?
If it is, fill the fuel tank immediately.
●Is the fuel tank cap loose?
If it is, tighten it securely.
The lamp will go off after taking several driving trips.
If the lamp does not go off even after several trips, contact your Lexus dealer as
soon as possible.
■Front passenger detection sensor and passenger seat belt reminder and warning
buzzer
●If luggage is placed on the front passenger seat, the front passenger detection
sensor may cause the warning light to flash and the warning buzzer to sound,
even if a passenger is not sitting in the seat.
●If a cushion is placed on the seat, the sensor may not detect a passenger, and the
warning light may not operate properly.
■When the tire pressure warning light comes on
Check the tire inflation pressure and adjust to the appropriate level. Pressing the
tire pressure warning reset switch does not turn off the tire pressure warning light.
■The tire pressure warning light ma y turn on due to natural causes
The tire pressure warning light may turn on due to natural causes such as natural air
leaks or tire inflation pressure changes caused by temperature. In this case, adjust-
ing the tire inflation pressure will turn off the warning light (after a few minutes).
■When a tires is replaced with a spare tire
The compact spare tire is not equipped with the tire pressure warning valve and
transmitter. If a tire goes flat, the tire pressure warning light will not turn off even
though the flat tire is replaced with the spare tire. Replace the spare tire with the
repaired tire and adjust the proper tire inflation pressure. The tire pressure warning
light will turn off after a few minutes.

5
When trouble arises
399
5-2. Steps to take in an emergency
08_IS350/250_U_(L/O_0708)
CAUTION
■Battery precautions
The battery contains poisonous and corrosive acidic electrolyte, while related parts
contain lead and lead compounds. Observe the following precautions when han-
dling the battery.
●When working with the battery, always wear safety glasses and take care not to
allow any battery fluids (acid) to come into contact with skin, clothing or the vehi-
cle body.
●Do not lean over the battery
●In the event that battery fluid comes into contact with the skin or eyes, immedi-
ately wash the affected area with water and seek medical attention.
Place a wet sponge or cloth over the affected area until medical attention can be
received.
●Always wash your hands after handling the battery support, terminals, and other
battery-related parts.
●Do not allow children near the battery.
NOTICE
■To prevent damaging the vehicle
Do not pull- or push-start the vehicle, because the three-way catalytic converter
may overheat and become a fire hazard.
■When handling jumper cables
Be careful that the jumper cables do not become tangled in the cooling fan or any
of the belts when connecting or disconnecting them.

5
When trouble arises
401
5-2. Steps to take in an emergency
08_IS350/250_U_(L/O_0708)
■Overheating
If you observe the following, your vehicle may be overheating.
●The engine coolant temperature gauge enters the red zone or a loss of power is
experienced.
●Steam is coming from under the hood.
CAUTION
■To prevent an accident or injury when inspecting under the hood of your vehicle
●Keep hands and clothing away from the fan and other belts while the engine is
running.
●Do not loosen the radiator cap while the engine and radiator are hot.
Serious injury, such as burns, may result from hot coolant and steam released
under pressure.
NOTICE
■When adding engine coolant
Wait until the engine has cooled down before adding engine coolant.
When adding coolant, do so slowly. Adding cool coolant to a hot engine too quickly
can cause damage to the engine.
Add engine coolant if required.
Water can be used in an emer-
gency measure if engine coolant
is unavailable. (
→P. 411)
Have the vehicle checked at your nearest Lexus dealer as soon as pos-
sible.
STEP6

409
6-1. Specifications
6
Vehicle specifications
08_IS350/250_U_(L/O_0708)
Engine
Fuel
IS250IS350
Model4GR-FSE2GR-FSE
Ty p e6-cylinder V type,
4-cycle, gasoline6-cylinder V type,
4-cycle, gasoline
Bore and stroke3.27 × 3.03 in.
(83.0
× 77.0 mm)
3.70 × 3.27 in.
(94.0
× 83.0 mm)
Displacement 152.5 cu.in.
(2500 cm3)
210.9 cu.in.
(3456 cm3)
Drive belt tensionAutomatic adjustment
Fuel typeUnleaded gasoline only
Octane rating91 (Research octane number 96) or higher
Fuel tank capacity17.2 gal. (65 L, 14.3 lmp.gal)

427
6-1. Specifications
6
Vehicle specifications
08_IS350/250_U_(L/O_0708)■
Tire dimensions
Section width
Tire height
Wheel diameter
Tire section names
Bead
Sidewall
Shoulder
Tr e a d
Belt
Inner liner
Reinforcing rubber
Carcass
Rim lines
Bead wires
Chafer
Uniform Tire Quality GradingThis information has been prepared in accordance with regulations
issued by the National Highway Traffic Safety Administration of the
U.S.A. Department of Transportation.
It provides the purchasers and/or prospective purchasers of Lexus vehi-
cles with information on uniform tire quality grading.
Your Lexus dealer will help answer any questions you may have as you read
this information.

449
Alphabetical index
08_IS350/250_U_(L/O_0708)
Bottle holders .......................................... 241
BrakeFluid ............................................................301
Parking brake ........................................ 129
Brake assist ............................................... 170
Care Exterior ....................................................274
Interior...................................................... 277
Seat belts ............................................... 278
Cargo capacity ....................................... 179
Cargo hooks ............................................ 261
CD changer ...............................................211
CD player....................................................211
Chains.........................................................183
Child restraint system Booster seats, definition.................... 95
Booster seats, installation ................. 99
Convertible seats, definition ........... 95
Convertible seats, installation ........ 99
Front passenger occupant classification system ........................ 90
Infant seats, definition ......................... 95
Infant seats, installation....................... 99
Installing CRS with lower anchorages ......................................... 102
Installing CRS with seatbelts .......... 99
Installing CRS with top straps .......103 Child safety
Airbag precautions ............................. 85
Battery precautions ............. 304, 399
Child restraint system .........................95
Child-protectors ...................................38
How your child should wear
the seatbelt............................................55
Installing child restraints.....................98
Moon roof precautions......................68
Power window lock switch .............. 64
Power window precautions ............65
Removed electronic key battery
precautions........................................326
Seat belt comfort guide ..................... 53
Seat belt extender precautions...... 57
Seat belt precautions ..........................56
Seat heater precautions......252, 254
Trunk precautions................................. 43
Child-protectors ......................................38
Cigarette lighter.................................... 249
Cleaning Exterior.................................................... 274
Interior ..................................................... 277
Seat belts ................................................278
Clock ......................................................... 244
Coat hooks ..............................................259
Compass .................................................. 269
Condenser ............................................... 301
Console box ........................................... 237
Cooling system Engine overheating.......................... 400
Cornering assist sensors .................... 164
Cruise control Cruise control....................................... 152
Dynamic radar cruise control....... 155
C

450
Alphabetical index
08_IS350/250_U_(L/O_0708)
Cup holder .............................................. 239
Curtain shield airbags............................ 79
Customizable features .......................436
Daytime running light system ........... 144
DefoggerRear window........................................200
Side mirror ............................................200
Dimension ................................................406
Dinghy towing .............................. 188, 189
Display Dynamic radar crui se control ...... 155
Satellite switch mode ....................... 245
Trip information ................................... 140
Warning message............................. 369
Do-it-yourself maintenance .............286
Door courtesy lights Door courtesy lights........................... 231
Wattage.................................................. 420
Door pockets........................................... 241
Doors Door glasses ........................................... 64
Door lock................................. 22, 34, 37
Side mirrors ............................................... 61
Driver's seat belt reminder light ..... 362
Driving Correct posture ..................................... 77
Procedures ............................................ 108
Driving position memory ...................... 46 Electric power steering........................170
Electronic key
If the electronic key does not operate properly............................ 394
Emergency, in case of If the engine will not start ................. 391
If the shift lever cannot be shifted from P....................................392
If the vehicle has discharged battery ..................................................397
If the warning buzzer sounds...... 360
If the warning light turns on.......... 360
If the warning message is displayed ............................................ 369
If you have a flat tire ........................ 382
If you lose your keys ........................ 393
If you think something is wrong .................................................. 356
If the electronic key does not operate properly............................ 394
If your vehicle becomes stuck .... 402
If your vehicle needs to be towed ................................................... 350
If your vehicle overheats................400
Engine Compartment ......................................292
Engine switch .......................................... 117
Hood ....................................................... 289
How to start the engine ..................... 117
Identification number ...................... 407
If the engine will not start ................. 391
Ignition switch ......................................... 117
Overheating ........................................400
Engine compartment cover ............. 294
D
E

451
Alphabetical index
08_IS350/250_U_(L/O_0708)
Engine coolantCapacity.....................................................411
Checking ............................................... 299
Preparing and checking
before winter......................................183
Engine coolant temperature
gauge .......................................................130
Engine immobilizer system .................. 72
Engine oil Capacity...................................................410
Checking ............................................... 295
Preparing and checking
before winter......................................183
Engine oil maintenance data ........... 298
EPS............................................................... 170
Event data recorder ............................ 358
First-aid kit storage belt....................... 261
Floor mat.................................................. 260
Fluid
Brake .........................................................301
Washer ...................................................305
Fog lights Switch ........................................................ 146
Wattage ................................................. 420
Foot well lighting .................................... 231
Front fog lights Switch ........................................................ 146
Wattage ................................................. 420
Front passenger occupant
classification system ........................... 90
Front passenger's seat belt
reminder light ......................................362 Front seats
Adjustment ............................................... 44
Driving position memory .................. 46
Seat position memory ........................ 49
Front turn signal lights Switch........................................................ 128
Wattage..................................................420
Fuel
Capacity ................................................ 409
Fuel gauge.............................................. 130
Fuel pump shut off system............. 357
Gas station information ................. 460
Information ..............................................421
Refueling....................................................69
Fuel door ..................................................... 69
Fuel filler door ........................................... 69
Fuel pump shut off system ................. 357
Fuses .......................................................... 327
Garage door opener .......................... 264
Gas station information......................460
Gauges ...................................................... 130
Glove box ................................................ 236
Glove box light ...................................... 237
Head restraints Adjusting ....................................................51
Headlight aim .......................................... 341
Headlight cleaner ....................................151
F
G
H