Page 425 of 488

5
When trouble arises
425
5-2. Steps to take in an emergency
■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 in specting under the hood of your vehicle
●If steam is seen coming from under the hood, do not open the hood until the
steam has subsided. The engine compartm ent may be very hot, causing serious
injury such as burns.
●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 resu lt from hot coolant and steam released
under pressure.
Add engine coolant if required.
Water can be used in an emer-
gency measure if engine coolant
is unavailable. ( P. 4 3 5 )
Have the vehicle checked at your nearest Lexus dealer as soon as pos-
sible.
STEP6
Page 433 of 488
433
6-1. Specifications
6
Vehicle specifications
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.)
Page 452 of 488
452
6-1. Specifications
■Tire dimensions
Section width
Ti r e h e i g h t
Wheel diameter
Tire section names
Bead
Sidewall
Shoulder
Tread
Belt
Inner liner
Reinforcing rubber
Carcass
Rim lines
Bead wires
Chafer
Uniform Tire Quality GradingThis information has b een prepared in accorda nce with regulations
issued by the National Highway Tr affic 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 an y questions you may have as you read
this information.
Page 465 of 488
465
6-2. Customization
6
Vehicle specifications
ItemFunctionDefault settingCustomizedsetting
Windshield
wipers and
washer
(
P. 1 6 0 )
Switching operation when
the vehicle is stationaryOnOff
Drip prevention functionOnOff
Time elapsed before the
drip prevention function
operatesVa r i a b l e
depending on
the vehicle
speed
3 seconds
Intuitive park-
ing assist
(
P. 1 8 0 )
Back sensor operation
display and buzzerOnOff
Buzzer volumeLevel 3Level 1 to 5
Distance which a sensor
detects4.9 ft. (150 cm)2.0 ft. (60 cm)
Illumination
(
P. 2 4 7 )
Time elapsed before lights
turn off15 seconds7. 5 s e c o n d s
30 seconds
Operation when the
doors are unlockedOnOff
Operation after the
“ENGINE START STOP”
switch turned OFF
OnOff
Front foot well lightsOnOff
Shift lever lightOnOff
Outer foot lightOnOff
Seat belt
reminder
(
P. 3 8 5 )
Vehicle speed linked seat
belt reminder buzzerOnOff
Page 469 of 488
For owners7
469
Reporting safety defects for U.S. owners..................... 470
Seat belt instructions for Canadian owners
(in French) ............................... 471
Page 471 of 488
471
7
For owners
Seat belt instructions for Canadian owners (in French)
The following is a French explanation of seat belt instructions extracted
from the seat belt section in this manual.
See the seat belt section for more detailed seat belt instructions in
English.
Utilisation correcte des ceintures de sécurité
●Déroulez la sangle diagonale de
telle sorte qu'elle passe bien sur
l'épaule, sans pour autant être
en contact avec votre cou ou
glisser de votre épaule.
● Placez la sangle abdominale le
plus bas possible sur les
hanches.
● Réglez la position du dossier de
siège. Asseyez-vous le dos le
plus droit possible et calez-vous
bien dans le siège.
● Ne vrillez pas la ceinture de
sécurité.
Guide de confort de ceinture de sécurité (sièges arrière extérieurs)
Si la sangle diagonale est proche
du cou de la personne, faites
coulisser le guide de confort de
ceinture de sécurité vers l'avant.
Page 477 of 488

477
Alphabetical index
CareExterior ....................................................292
Interior..................................................... 295
Seat belts ............................................... 296
Cargo capacity ....................................... 196
Cargo hooks ...........................................278
CD changer ............................................229
CD player.................................................229
Chains ....................................................... 200
Child restraint system Booster seats, definition.................. 100
Booster seats, installation ................ 107
Convertible seats, definition ......... 100
Convertible seats, installation ....... 107
Front passenger occupant classification system ........................ 95
Infant seats, definition ....................... 100
Infant seats, installation...................... 107
Installing CRS with lower anchorages ........................................ 105
Installing CRS with seat belts ........ 107
Installing CRS with top straps ........ 110 Child safety
Airbag precautions ..............................90
Battery precautions .............. 323, 423
Child restraint system .......................100
Child-protectors ...................................40
How your child should wear the seat belt ..........................................59
Installing child restraints................... 104
Moon roof precautions...................... 73
Power window lock switch ..............69
Power window precautions ............ 70
Removed electronic key battery precautions........................................346
Seat belt comfort guide ..................... 57
Seat belt extender precautions........61
Seat belt precautions ..........................60
Seat heater precautions....... 268, 271
Trunk precautions................................. 45
Child-protectors ...................................... 40
Cigarette lighter.................................... 264
Cleaning Exterior.................................................... 292
Interior .....................................................295
Seat belts ................................................296
Clock .........................................................259
Coat hooks .............................................. 276
Compass .................................................. 287
Condenser ............................................... 319
Console box ........................................... 252
Cooling system Engine overheating........................... 424
Cornering assist sensors .................... 180C
Page 478 of 488

478
Alphabetical index
Cruise controlCruise control .......................................166
Dynamic radar cruise control .......170
Cup holder ..............................................254
Curtain shield airbags............................84
Customizable features ........................ 461
Daytime running light system ........... 157
Defogger Rear window ..........................................218
Side mirror ..............................................218
Dimension ................................................430
Dinghy towing ............................ 205, 206
Display Dynamic radar cruise control .......170
Satellite switch mode .......................260
Trip information ....................................152
Warning message............................. 392
Do-it-yourself maintenance .............304
Door courtesy lights Door courtesy lights..........................247
Wattage.................................................. 445
Door pockets..........................................256
Doors Door glasses ........................................... 69
Door lock.................................24, 36, 39
Side mirrors ............................................. 66
Driver's seat belt reminder light .... 385
Driving Correct posture .................................... 82
Procedures .............................................. 116
Driving position memory ......................48 Electric power steering....................... 186
Electronic key
If the electronic key does not operate properly.............................. 417
Emergency, in case of If the engine will not start ................. 413
If the shift lever cannot be shifted from P..................................... 415
If the vehicle has discharged battery ................................................... 421
If the warning buzzer sounds...... 383
If the warning light turns on.......... 383
If the warning message is displayed .............................................392
If you have a flat tire ........................ 404
If you lose your keys .......................... 416
If you think something is wrong ...................................................379
If the electronic key does not operate properly.............................. 417
If your vehicle becomes stuck ..... 427
If your vehicle needs to be towed ....................................................373
If your vehicle overheats.................424
Emergency flashers Switch ....................................................... 372
Engine Compartment ....................................... 310
Engine switch ........................................ 126
Hood ....................................................... 307
How to start the engine ................... 126
Identification number ........................ 431
If the engine will not start ................. 413
Ignition switch ....................................... 126
Overheating .........................................424
D
E