engine overheat Lexus GS350 2008 Using the audio system / LEXUS 2008 GS460/350 (OM30A87U) User Guide

534
5-2. Steps to take in an emergency
GS_G_U
May 13, 2008 5:14 pm
■Overheating
In the following situations, 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
●Keep hands and clothing away from the fan and engine drive belt 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 coolant if necessary.
Water can be used in an emer-
gency measure if coolant is
unavailable. ( P. 5 4 6 )
Have the vehicle checked at your nearest Lexus dealer as soon as pos-
sible.
STEP6

585
Alphabetical index
GS_G_U
May 13, 2008 5:14 pm
BrakeFluid ............................................................ 416
Parking brake ..........................................131
Brake assist ............................................... 184
Care Exterior ...................................................388
Interior....................................................... 391
Seat belts ............................................... 392
Cargo capacity ....................................... 194
Cargo hooks .......................................... 360
CD player/changer .............................242
Chains....................................................... 200
Child-protectors ..................................... 38
Child restraint system Definition................................................... 98
Installation................................................ 102
Installing CRS with lower 
anchors .................................................106
Installing CRS with seatbelts .........103
Installing CRS with top straps ....... 107
Child safety Airbag precautions ............................. 87
Battery precautions ................ 419, 532
Child restraint system ........................ 98
Child-protectors................................... 38
How your child should wear 
the seatbelt ........................................... 56
Installing child restraints ................... 102
Moon roof precautions ..................... 69
Power window lock switch ..............64
Power window precautions.............64
Removed electronic key battery 
precautions ......................................... 441
Seat belt comfort guide..................... 54
Seat belt precautions...........................57 Seat heater precautions................ 355
Trunk precautions................................. 44
Cigarette lighter....................................352
Cleaning Exterior................................................... 388
Interior ...................................................... 391
Seat belts ................................................392
Clock ......................................................... 349
Coin holder .............................................345
Compass ..................................................369
Condenser ............................................... 415
Console box ........................................... 342
Cooling system Engine overheating.......................... 533
Cruise control Cruise control....................................... 150
Dynamic radar cruise control....... 153
Cup holders ............................................345
Curtain shield airbags........................... 80
Customizable features .......................569
Daytime running light system ........... 143
Defogger Rear window ........................................ 225
Side mirror............................................. 225
Dimension................................................540
Dinghy towing ........................................205
Display Multi-information display ................ 139
Touch screen ...................................... 208
Trip information ................................... 140
Warning message ............................. 497
Do-it-yourself maintenance ............ 400
Door courtesy lights ............................ 337
Door pocket............................................ 346
C
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586
Alphabetical index
GS_G_U
May 13, 2008 5:14 pm
DoorsDoor lock................................. 22, 34, 37
Rear door child protector ................ 38
Driver’s seat belt reminder light .....490
Driver’s seat position memory ........... 47
Driving Correct posture .................................... 78
Procedures ...............................................112
DVD player/changer........................... 251
Electric power steering ....................... 184
Electronic key If the electronic key does 
not operate properly .................... 526
Replacing battery .............................. 440
Emergency, in case of If a warning light turns on ............. 488
If a warning message is 
displayed ............................................ 497
If the electronic key does 
not operate properly .................... 526
If the engine will not 
start........................................................ 523
If the shift lever cannot be  shifted from “P”................................ 524
If the 12 volt battery is 
discharged ....................................... 529
If you have a flat tire ............... 512, 522
If you lose your keys......................... 525
If you think something is 
wrong ................................................... 484
If your vehicle becomes stuck.....536
If your vehicle needs to be 
towed ................................................... 478
If your vehicle overheats ................ 533 Engine
ACCESSORY mode........................122
Compartment ..................................... 406
Engine (ignition) switch...................... 121
Hood ....................................................... 403
How to start the engine ..................... 121
If the engine will not start ............... 523
Overheating ........................................ 533
Engine compartment cover .............408
Engine coolant temperature 
gauge .......................................................132
Engine coolant Capacity ................................................ 546
Checking................................................. 414
Preparing and checking 
before winter...................................... 199
Engine oil Capacity ................................................ 544
Checking............................................... 409
Preparing and checking 
before winter...................................... 199
Engine oil maintenance data .............412
Engine (ignition) switch......................... 121
Event data recorder ............................ 486
First-aid kit storage belt ..................... 360
Floor mats ................................................ 359
Fluid Brake ......................................................... 416
Washer................................................... 420
Fog lights Switch ........................................................ 145
Wattage ................................................. 552
Foot light .................................................. 337
E
F

588
Alphabetical index
GS_G_U
May 13, 2008 5:14 pm
JackPositioning a floor jack.................... 404
Replacing the wheel...........................512
Jack handle ............................................... 512
Keyless entry.............................................. 34
Keys Engine (ignition) switch ......................121
If the electronic key does 
not operate properly .................... 526
If you lose your keys......................... 525
Key number plate ................................. 20
Keys ............................................................. 20
Mechanical key...................................... 20
Wireless remote control key .......... 34
Lexus Link System ................................ 373
Light bulbs Replacing ............................................... 470
Wattage.................................................. 552
Light sensitive optitron meter ........... 134
Lights Fog light switch .....................................145
Headlights switch ................................ 142
Interior lights list.................................. 337
Replacing light bulbs........................ 470
Turn signal lever .................................. 130
Vanity lights ..........................................348
Wattage.................................................. 552 Maintenance
Do-it-yourself maintenance.........400
General maintenance..................... 396
Maintenance data ............................. 540
Maintenance requirements.......... 394
Meter Instrument panel light control ....... 133
Meters....................................................... 132
Micro dust and pollen filter ................ 221
Mirrors Inside rear view mirror ........................ 61
Side mirror heater..............................225
Side mirrors.............................................. 62
Vanity mirrors ..................................... 348
Moon roof....................................................67
MP3 disc...................................................247
Multi-information display ....................139
Odometer .................................................132
Oil Engine oil............................................... 409
Opener Fuel filler door .........................................70
Hood ....................................................... 403
Trunk............................................................ 42
Outer foot lights.................................... 337
Outside rear view mirrors Adjusting and folding .......................... 62
Mirror position memory .................... 47
Outside temperature 
display ..........................................140, 350
Overhead console ............................... 343
Overheating, Engine .......................... 533J
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GS_G_U
May 13, 2008 5:14 pm
What to do if...
What to do if...
A tire puncturesP. 5 1 2 /522If you have a flat tire
The engine does not start
P. 7 3Immobilizer system
P. 5 2 3If the engine will not start
P. 5 2 9If the 12 volt battery is discharged
The shift lever cannot be 
moved outP. 5 2 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. 5 3 3If your vehicle overheats
The key is lostP. 5 2 5If you lose your keys
The battery runs outP. 5 2 9If the 12 volt battery is discharged
The doors cannot be lockedP. 3 7Doors
The horn begins to soundP. 7 5Alarm
The vehicle is stuck in mud or
sandP. 5 3 6If the vehicle becomes stuck