2008 Lexus IS F engine overheat

245
3-5. Other interior features
3
Interior features
08_IS F_U_(L/O_0711)
CAUTION
■Burns
●Use caution when seating the following persons in a seat with the seat heater on
to avoid the possibility of burns:
• Babies, small children, the elderly, the sick and the disabled
• Persons with sensitive skin
• Persons who are fatigued
• Persons who have taken alcohol or drugs that induce sleep (sleeping drugs,cold remedies, etc.)
●Do not cover the seat with anything when using the seat heater.
Using the seat heater with a blanket or cushion increases the temperature of the
seat and may lead to overheating.
NOTICE
■To prevent seat heaters and ventilators damage
Do not put unevenly weighted objects on the seat and do not stick sharp objects
(needles, nails, etc.) into the seat.
■To prevent battery discharge
Turn the switches off when the engine is not running.

When trouble arises5
339
08_IS F_U_(L/O_0711)
5-1. Essential information..... 340If your vehicle needs to be towed................................ 340
If you think something is wrong .................................. 346
Fuel pump shut off system.... 347
Event data recorder ............. 348 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

392
5-2. Steps to take in an emergency
08_IS F_U_(L/O_0711)
If your vehicle overheats
If your engine overheats:
Stop the vehicle in a safe place and turn off the automatic air
conditioning system.
Check to see if steam is coming out from under the hood.
If you see steam: Stop the engine. Carefully lift the hood after the steam sub-
sides and then restart the engine.
If you do not see steam: Leave the engine running and carefully lift the hood.
Remove the engine compartment cover. ( →P. 283)
Check to see if the cooling fan is operating.
If the fan is operating: Wait until the temperature of the engine (shown on the
instrument cluster) begins to fall and then stop the engine.
If the fan is not operating: Stop the engine immediately and call your local Lexus
dealer.
After the engine has cooled
down sufficiently, check the
engine coolant level and inspect
the radiator core (radiator) for
any leaks.STEP1
STEP2
STEP3
STEP4
STEP5

5
When trouble arises
393
5-2. Steps to take in an emergency
08_IS F_U_(L/O_0711)
■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
●If steam is seen coming from under the hood, do not open the hood until the
steam has subsided. The engine compartment may be very hot, causing serious
injury such as burns.
●Keep hands and clothing away from the fan and belt while the engine is running.
●Do not loosen the coolant reservoir cap while the engine and radiator are hot.
Serious injury, such as burns, may result from hot coolant and steam released
under pressure.
Add engine coolant if neces-
sary.
Water can be used in an emer-
gency measure if engine coolant
is unavailable. (→P. 4 0 3 )
Have the vehicle checked at your nearest Lexus dealer as soon as pos-
sible.
STEP6

440
Alphabetical index
08_IS F_U_(L/O_0711)
Child-protectors ......................................38
Cigarette lighter....................................240
CleaningExterior ................................................... 264
Interior ..................................................... 267
Seat belts................................................268
Clock .........................................................235
Coat hooks .............................................. 249
Compass ..................................................259
Condenser ..............................................290
Console box ...........................................228
Cooling system Engine overheating .......................... 392
Cornering assist sensors .................... 160
Cruise control Cruise control ....................................... 147
Dynamic radar crui se control ...... 150
Cup holders ............................................230
Curtain shield airbags............................ 77
Customizable features ....................... 424 Daytime running light system ........... 140
Defogger
Rear window ......................................... 194
Side mirrors............................................ 194
Dimension ...............................................398
Dinghy towing......................................... 183
Display Dynamic radar crui se control.......150
Satellite switch mode........................236
Trip information.................................... 136
Warning message ............................ 360
Do-it-yourself maintenance ............. 276
Door courtesy lights Door courtesy lights .........................223
Wattage ................................................. 408
Door pockets ......................................... 232
Doors Door glasses............................................ 62
Door lock .................................22, 34, 37
Side mirrors............................................. 60
Driver's seat belt reminder light ..... 353
Driving Correct posture.....................................75
Procedures.............................................106
Driving position memory...................... 45D

441
Alphabetical index
08_IS F_U_(L/O_0711)
Electric power steering ....................... 166
Electronic keyIf the electronic key does not operate properly ............................ 386
Emergency, in case of If the engine will not start ............... 383
If the shift lever cannot be shifted from P ................................... 384
If the vehicle has discharged battery.................................................. 389
If the warning buzzer sounds......350
If the warning light turns on ..........350
If the warning message is displayed ............................................360
If you have a flat tire .........................374
If you lose your keys ........................385
If you think something is wrong................................................... 346
If the electronic key does not operate properly ............................ 386
If your vehicle becomes stuck .... 395
If your vehicle needs to be towed ................................................... 340
If your vehicle overheats................ 392 Engine
ACCESSORY mode......................... 114
Compartment......................................282
Engine switch .......................................... 114
Hood ........................................................ 279
How to start the engine ..................... 114
Identification number ...................... 399
If the engine will not start............... 383
Ignition switch ......................................... 114
Overheating .........................................392
Engine compartment cover .............283
Engine coolant Capacity ................................................ 403
Checking .............................................. 288
Preparing and checking before winter .....................................180
Engine coolant temperature gauge....................................................... 128
Engine immobilizer system.................. 70
Engine oil Capacity .................................................402
Checking ...............................................284
Preparing and checking before winter .....................................180
Engine oil maintenance data............286
EPS .............................................................. 166
Event data recorder ............................348E

444
Alphabetical index
08_IS F_U_(L/O_0711)
Odometer................................................. 128
OilEngine oil ............................................... 284
Opener
Fuel filler door......................................... 67
Hood........................................................ 279
Trunk ............................................................. 41
Outer foot lights
Outer foot lights ................................. 223
Wattage................................................. 408
Outside rear view mirrors Adjusting and folding ......................... 60
Mirror position memory ................... 45
Outside temperature display............ 136
Overhead console ............................... 229
Overhead courtesy lights
Overhead courtesy lights ............. 223
Wattage................................................. 408
Overheating, Engine ........................... 392
Parking assist sensors .......................... 160
Parking brake ...........................................127
Parking lights Replacing light bulbs........................ 334
Switch ........................................................139
Wattage................................................. 408
PCS ............................................................. 173
Personal lights Switch ...................................................... 225
Power outlet............................................. 241
Power windows ........................................ 62
Pre-collision system.............................. 173 Radar cruise control............................. 150
Radiator .................................................... 290
Radio........................................................... 198
RDS ..............................................................199
Rear turn signal lights
Replacing light bulbs ....................... 334
Wattage ................................................. 408
Rear view mirror
Compass ............................................... 259
Rear window defogger ........................194
Replacing Electronic key battery ....................... 316
Fuses.......................................................... 318
Light bulbs ............................................ 334
Reporting safety defects for U.S. owners.......................................... 432
Seat belts Adjusting the seat belt ........................ 52
Automatic locking retractor ............53
Child restraint system installation ..............................................96
Cleaning and maintaining the seat belts .................................... 268
Emergency locking retractor..........53
How to wear your seat belt .............. 51
How your child should wear the seat belt...........................................54
Pregnant women, proper seat belt use .........................53
Reminder light..................................... 353
Seat belt extenders...............................54
Seat belt pretensioners ......................52O
P
R
S

449
08_IS F_U_(L/O_0711)
What to do if...
What to do if...
A tire puncturesP. 3 74If you have a flat tire
The engine does not start
P. 3 8 3If the engine will not start
P. 7 0Engine immobilizer system
P. 3 8 9If the vehicle battery is discharged
The shift lever cannot be
moved outP. 3 8 4If the shift lever cannot be shifted
from P
The engine coolant temperature
gauge enters the red zone
Steam can be seen coming
from under the hood
P. 3 9 2If your vehicle overheats
The key is lostP. 3 8 5If you lose your keys
The battery runs outP. 3 8 9If the vehicle battery is discharged
The doors cannot be lockedP. 3 7Doors
The horn begins to soundP. 7 2Alarm
The vehicle is stuck in mud or
sandP. 3 9 5If the vehicle becomes stuck