check engine Lexus GS350 2008 Opening, closing and locking the doors and trunk / LEXUS 2008 GS460/350 (OM30A87U) Owner's Guide

5
When trouble arises
533
5-2. Steps to take in an emergency
GS_G_U
May 13, 2008 5:14 pm
If your vehicle overheats
If your engine overheats:
Stop the vehicle in a safe place and turn off the air conditioning
system.
Check to see if steam is coming out from under the hood.
If you see steam: 
Stop the engine and car efully lift the hood.
If you do not see steam: Leave the engine running and carefully lift the hood.
Remove the engine compartment cover. ( P. 4 0 8 )
Check to see if the cooling fan is operating.
If the fan is operating: 
Wait until the engine coolant temperature gauge 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
coolant level and inspect the
radiator core (radiator) for any
leaks.STEP1
STEP2
STEP3
STEP4
STEP5

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

547
6-1. Specifications
6
Vehicle specifications
GS_G_U
May 13, 2008 5:14 pm
Electrical system
Differential
Rear differential: “Toyota Genuine Diff erential Gear Oil” is filled in your
Lexus vehicle at factory fill. Use Lexu s approved “Toyota Genuine Differen-
tial Gear Oil” or an equivalent of matching quality to satisfy the above spec-
ification. Please contact your Lexus dealer for further details.
12 volt battery
Open voltage at
68F (20 C):12.6  12.8V Fully charged 
12.2  12.4V Half charged 
11.8  12.0V Discharged 
(Voltage is checked 20 minutes after
the engine and all lights are turned off.)
Charging rates5A max.
GS460/
GS350 (2WD)GS350 (4WD)
FrontRear
Oil capacity1.42 qt.
(1.35 L, 1.19 Imp.qt.)0.73 qt.
(0.70 L, 0.61 Imp.qt.)1.42 qt.
(1.35 L, 1.19 Imp.qt.)
Oil type and
viscosity
Toyota Genuine Dif-
ferential Gear Oil LT
75W-85 GL-5 or
equivalent
Hypoid gear oil API
GL-5
Above 0°F (-18°C):
SAE 90
Below 0°F (-18°C):
SAE 80W or SAE
80W-90
Toyota Genuine Dif-
ferential Gear Oil LT
75W-85 GL-5 or
equivalent

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

590
Alphabetical index
GS_G_U
May 13, 2008 5:14 pm
Smart access system with 
push-button start Antenna location....................................24
Entry function...........................................22
Starting the engine ................................121
Spare tire Inflation pressure............................... 550
Spare tire..................................................513
Spark plug ................................................546
Specifications ........................................ 540
Speedometer........................................... 132
Steering wheel Adjustment............................................... 60
Audio switches ...................................288
Steering wheel position 
memory...................................................47
Storage compartment ........................ 344
Storage feature......................................340
Stuck If your vehicle becomes stuck.....536
Sun visors ................................................. 347
Switch “ENGINE START STOP” 
switch .......................................................121
Fog light switch .....................................145
Ignition switch..........................................121
Light switches ........................................ 142
Mode select switch............................. 126
Power door lock switch .....................37
Power window switch ........................ 64
Tire pressure warning 
reset switch ....................................... 422
Tire pressure 
warning select switch................... 424
Window lock switch ........................... 64
Wipers and washer switch .............146 Tachometer ..............................................132
Tail lights
Switch ........................................................ 142
Theft deterrent system Alarm........................................................... 75
Immobilizer system .............................. 73
Theft prevention labels........................... 77
Tire inflation pressure .........................550
Tire information Glossary ................................................ 562
Size ........................................................... 559
Tire identification number .............558
Uniform Tire Quality Grading ... 560
Tires Chains..................................................... 200
Checking................................................. 421
Compact spare tire............................ 513
If you have a flat tire ............... 512, 522
Inflation pressure ...............................550
Information ........................................... 556
Replacing ................................................ 512
Rotating tires.......................................... 421
Size ...........................................................550
Snow tires.............................................. 202
Tire pressure warning system....... 421
Tools.............................................................512
Total load capacity ................................ 198
Touch screen..........................................208
Towing Dinghy towing .................................... 205
Emergency towing ........................... 478
Trailer towing ...................................... 204
Traction control...................................... 184
Trip meter ..................................................132T