Page 537 of 624

5
When trouble arises
537
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. 5 5 9 )
Have the vehicle checked at your nearest Lexus dealer as soon as pos-
sible.
STEP5
Page 555 of 624
555
6-1. Specifications
6
Vehicle specifications
Engine
Fuel
IS250CIS350C
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 capacity
(Reference)17.2 gal. (65 L, 14.3 Imp. gal.)
Page 577 of 624
577
6-1. Specifications
6
Vehicle 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 accordance with regulations
issued by the National Highway Traf fic Safety Administration of the U.S.
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 591 of 624
For owners7
591
Reporting safety defects for U.S. owners..................... 592
Seat belt instructions for Canadian owners
(in French) ............................. 593
SRS airbag instructions for Canadian owners
(in French) ............................. 596
Headlight aim instructions for Canadian owners
(in French) ............................. 604
Page 593 of 624
593
7
For owners
Seat belt instructions for Canadian owners (in French)
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.
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.
Page 611 of 624

611
Alphabetical index
Back-up lightsWattage .................................................568
Battery Checking ................................................427
If the vehicle has a discharged battery.................................................. 532
Preparing and checking before winter .................................... 233
Bluetooth
® audio* .............................. 303
Bluetooth® phone*..............................322
Brake Fluid .......................................................... 425
Parking brake ........................................159
Brake assist ............................................... 214
Care Exterior ................................................... 396
Interior.......................................................401
Seat belts ............................................... 402
Cargo capacity ......................................229
Cargo hooks ...........................................374
CD changer* ..........................................264
CD player* ..............................................264
Chains ....................................................... 233 Child restraint system
Booster seats, definition ................... 122
Booster seats, installation ................129
Convertible seats, definition ........... 122
Convertible seats, installation ........129
Front passenger occupant classification system ......................... 117
Infant seats, definition ......................... 122
Infant seats, installation ......................129
Installing CRS with LATCH anchors .................................................. 127
Installing CRS with seat belts .........129
Installing CRS with top straps........132
Child safety Airbag precautions .............................. 112
Battery precautions ..............429, 534
Child restraint system ........................ 122
How your child should wear the seat belt .......................................... 73
Installing child restraints....................126
Power window lock switch ..............83
Power window precautions ........... 85
Removed electronic key battery precautions....................................... 450
Seat belt guide.......................................... 71
Seat belt extender precautions...... 75
Seat belt precautions .......................... 74
Seat heater precautions.................. 372
Trunk precautions................................. 53
B
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.
C
Page 612 of 624

612
Alphabetical index
Cigarette lighter....................................369
CleaningExterior ...................................................396
Interior ...................................................... 401
Seat belts................................................ 402
Clock ......................................................... 364
Compass ................................................. 383
Condenser .............................................. 425
Console box ........................................... 357
Cooling system Engine overheating ..........................536
Cornering assist sensors .................. 208
Cruise control Cruise control ...................................... 190
Dynamic radar cruise control .......194
Cup holder ............................................. 358
Customizable features ...................... 586 Daytime running light system ............178
Defogger*
Rear window ......................................... 251
Side mirror.............................................. 251
Dimension ............................................... 552
Dinghy towing........................................ 238
Display Dynamic radar cruise control....... 194
Satellite switch mode....................... 365
Trip information.....................................172
Warning message ............................500
Do-it-yourself maintenance .............. 410
Door courtesy lights Door courtesy lights ........................ 353
Wattage ................................................. 568
Doors Door lock .................................32, 44, 47
Door windows ........................................82
Side mirrors.............................................. 79
Driver's seat belt reminder light ..... 493
Driving Correct posture................................... 104
Procedures............................................. 138
Driving position memory........................ 61D
Page 614 of 624

614
Alphabetical index
Floor mat .................................................. 373
FluidBrake........................................................ 425
Washer ...................................................430
Fog lights Switch ....................................................... 180
Wattage................................................. 568
Foot well lights .......................................353
Front fog lights Switch ....................................................... 180
Wattage................................................. 568
Front passenger occupant classification system ............................ 117
Front passenger's seat belt
reminder light......................................493
Front seats Adjustment............................................... 55
Driving position memory.................... 61
Seat position memory ........................ 65
Front turn signal lights Switch ....................................................... 158
Wattage................................................. 568 Fuel
Capacity ................................................ 555
Fuel gauge ................................................ 161
Fuel pump shut off system ............ 490
Information ........................................... 569
Refueling ................................................... 95
Fuel door ..................................................... 95
Fuel filler door ........................................... 95
Fuel pump shut off system................. 490
Fuses ............................................................451
Garage door opener ...........................377
Gauges ........................................................ 161
Glove box ................................................ 356
Glove box light ...................................... 356
Hands-free system for mobile phone* ............................. 322
Hazard lights Switch ...................................................... 482
Head restraints Adjusting .................................................. 67
Headlight aim ......................................... 467
Headlight cleaner.................................. 189F
G
H