Page 503 of 584
5
When trouble arises
503
5-2. Steps to take in an emergency
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.
Page 505 of 584

5
When trouble arises
505
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 fans 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 if engine coolant is
unavailable. ( P. 5 1 7 )
Have the vehicle checked at your nearest Lexus dealer as soon as pos-
sible.
STEP5
Page 513 of 584
513
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 capacity
(Reference)17.2 gal. (65 L, 14.3 Imp. gal.)
Page 533 of 584
533
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 545 of 584
545
6-2. Customization
6
Vehicle specifications
Windshield
wipers and
washer
(
P. 1 7 3 )
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 5 )
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. 3 1 9 )
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 is turned OFF
OnOff
Front footwell lightsOnOff
Shift lever lightOnOff
Outer foot lightOnOff
Seat belt
reminder
(
P. 4 6 5 )
Vehicle speed linked seat
belt reminder buzzerOnOff
ItemFunctionDefault settingCustomizedsetting
Page 549 of 584
For owners7
549
Reporting safety defects for U.S. owners..................... 550
Seat belt instructions for Canadian owners
(in French) .............................. 551
SRS airbag instructions for Canadian owners
(in French) ............................. 553
Headlight aim instructions for Canadian owners
(in French) ............................. 562
Page 551 of 584
551
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 569 of 584

569
Alphabetical index
Back-up lightsWattage ................................................. 525
Battery Checking ............................................... 402
If the vehicle has a discharged battery................................................. 500
Preparing and checking before winter ...................................... 201
Bluetooth
® audio* ...............................270
Bluetooth® phone*............................. 288
Bottle holders ........................................ 329
Brake Fluid ..........................................................400
Parking brake ..........................................151
Brake assist ................................................ 191 Care
Exterior.................................................... 372
Interior ..................................................... 376
Seat belts ................................................ 377
Cargo capacity ........................................197
Cargo hooks.......................................... 350
CD changer* ........................................... 231
CD player* ............................................... 231
Chains ........................................................ 201
Child-protectors ...................................... 49
Child restraint system Booster seats, definition .................... 115
Booster seats, installation ................122
Convertible seats, definition ............ 115
Convertible seats, installation ........ 122
Front passenger occupant classification system ......................... 110
Infant seats, definition .......................... 115
Infant seats, installation ...................... 122
Installing CRS with LATCH anchors ................................................. 120
Installing CRS with seat belts ......... 122
Installing CRS with top straps....... 125
B
*: For vehicles with a navigation system, refe r to the “Navigation System Owner’s Manual”.
C