2009 Lexus ES350 radiator

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4-3. Do-it-yourself maintenance
4
Maintenance and care
ES350_U_(L/O_0808)
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.
Brake fluid■ Checking fluid level
The brake fluid level should be
between the MAX and MIN lines
on the tank.
Make sure to check the fluid type and prepare the necessary items.
■ Adding fluid
CAUTION
■When the engine is hot
Do not touch the radiator or condenser, as they may be hot and you may be burned.
Fluid typeFMVSS No.116 DOT 3 or SAE J1703 brake fluid
ItemsClean funnel
■Brake fluid can absorb moisture from the air
Excess moisture in the fluid can cause a dangerous loss of braking efficiency. Use
only newly opened brake fluid.

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5-2. Steps to take in an emergency
ES350_U_(L/O_0808)
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. 312)
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

418
5-2. Steps to take in an emergency
ES350_U_(L/O_0808)
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 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 result from hot coolant and steam released
under pressure.
NOTICE
■When adding engine coolant
Wait until the engine has cooled down before adding engine coolant.
When adding coolant, do so slowly. Adding cool coolant to a hot engine too quickly
can cause damage to the engine.

466
Alphabetical index
ES350_U_(L/O_0808)
Parking assist sensors .......................... 155
Parking brake .......................................... 123
Parking lightsReplacing light bulbs........................ 357
Switch ........................................................135
Wattage.................................................... 431
PCS ............................................................. 164
Personal lights Switch ...................................................... 255
Power outlet............................................268
Power steering fluid .............................320
Power windows ........................................60
Pre-collision system.............................. 164
Radar cruise control ............................. 146
Radiator ..................................................... 319
Radio ................................................................ 198
Radio data system ................................. 199
RDS ............................................................. 199
Rear side marker lights
Replacing light bulbs........................ 354
Wattage.................................................... 431
Rear sunshade ....................................... 274
Rear turn signal lights Replacing light bulbs........................ 354
Wattage.................................................... 431
Rear window defogger........................ 195
Replacing Electronic key battery...................... 342
Fuses ........................................................ 344
Light bulbs............................................. 354
Reporting safety defects for
U.S. owners ..........................................454 Seat belts
Adjusting the seat belt ......................... 51
Automatic Locking Retractor .........52
Child restraint system
installation .............................................. 97
Cleaning and maintaining
the seat belts .................................... 296
Emergency Locking Retractor ......52
How to wear your seat belt ............ 50
How your child should wear
the seat belt...........................................53
Pregnant women,
proper seat belt use .........................52
Reminder light...................................... 377
Seat belt extenders...............................53
Seat belt pretensioners ....................... 51
Seat heaters ...................................269, 271
Seat position memory.............................47
Seat ventilators ........................................ 271
Seating capacity....................................... 171
Seats Adjustment ............................................... 43
Adjustment precautions ....................43
Child seats/child restraint
system installation .............................. 97
Cleaning ................................................ 295
Driver’s seat position memory ....... 44
Front passenger seat position
memory .................................................. 47
Head restraint .........................................49
Properly sitting in the seat................. 75
Seat heaters ............................................271
Ventilated seats.....................................271
Service reminder indicators ............. 127P
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