2009 Lexus GS350 radiator

432
4-3. Do-it-yourself maintenance
GS_G_U (OM30B43U)
April 27, 2009 10:48 am
Radiator and condenserCheck the radiator and condenser and clear any foreign objects.
If either of the above parts are extremely dirty or you are not sure of their
condition, have your vehicle checked by your Lexus dealer.
CAUTION
■When the engine is hot
Do not remove the radiator and reservoir cap.
The cooling system may be under pressure and may spray hot coolant if the cap is
removed, causing burns or other injuries.
NOTICE
■When adding the coolant
Coolant is neither plain water nor straight antifreeze. The correct mixture of water
and antifreeze must be used to provide proper lubrication, corrosion protection
and cooling. Be sure to read the antifreeze or coolant label.
■If you spill coolant
Be sure to wash it off with water to prevent it from damaging parts or paint.
CAUTION
■When the engine is hot
Do not touch the radiator or condenser, as they may be hot and you may be burned.
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552
5-2. Steps to take in an emergency
GS_G_U (OM30B43U)
April 27, 2009 10:48 am
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. 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. 4 2 6 )
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 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
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5
When trouble arises
553
5-2. Steps to take in an emergency
GS_G_U (OM30B43U)
April 27, 2009 10:48 am
■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
●If steam is seen coming from under the food, do not open the food 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 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 result 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 6 6 )
Have the vehicle checked at your nearest Lexus dealer as soon as pos-
sible.
STEP6
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609
Alphabetical index
GS_G_U (OM30B43U)
April 27, 2009 10:48 am
Parking brake .......................................... 143
Parking lightsReplacing light bulbs .......................488
Switch ........................................................155
Wattage ..................................................572
Personal lights ....................................... 358
Portable music player ........................ 306
Power outlet ............................................372
Power windows......................................... 75
Pre-collision system .............................207
Radar cruise control ............................. 169
Radiator.....................................................432
Radio ......................................................... 248
Radio data system................................ 250
Rear sunshade........................................376
Rear turn signal lights Replacing light bulbs .......................488
Wattage ..................................................572
Rear view monitor system .................. 196
Rear window defogger .......................243
Replacing Electronic key battery .....................458
Fuses ........................................................ 460
Light bulbs ............................................488
Reporting safety defects for U.S. owners ......................................... 598
Seat belts Adjusting the seat belt ........................64
Automatic locking retractor............ 66
Child restraint system installation ..............................................113
Cleaning and maintaining the seat belts.......................................410
Emergency locking retractor ......... 66 How to wear your
seat belt ............. 64
How your child should wear the seat belt .......................................... 67
Pre-collision seat belts .......................66
Pregnant women, proper seat belt use .........................66
Reminder light .................................... 509
Seat belt extenders .............................. 67
Seat belt pretensioners ......................65
Seat heaters/ventilators..................... 374
Seating capacity ..................................... 216
Seats Adjustment ............................................... 54
Adjustment precautions ....................55
Child seats/child restraint system installation.............................. 113
Cleaning ................................................ 409
Driver’s seat position memory .......56
Head restraint .........................................60
Properly sitting in the seat ................89
Seat heaters .......................................... 373
Service reminder indicators ............. 149
Shift lever Automatic transmission ....................137
If the shift lever cannot be shifted from “P” ................................543
Shift lock system ....................................543
Shopping bag hooks............................ 379
Side airbags................................................. 91
Side marker lights Switch........................................................ 155
Side mirror Adjusting and folding.......................... 73
Mirror position memory ....................56P
R
S
GS_U_G.book Page 609 Monday, April 27, 2009 10:50 AM