2013 Lexus IS250 radiator

400
4-3. Do-it-yourself maintenance
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 cause serious inju-
ries, such as burns.
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.

504
5-2. Steps to take in an emergency
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.
Check to see if the cool ing fans are operating.
If the fans are operating: Wait until the temperature of the engine (shown on the
instrument cluster) begins to fall and then stop the engine.
If the fans are 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.
If the engine compartment
cover needs to be removed:
P. 3 9 3
STEP1
STEP2
STEP3
STEP4

5
When trouble arises
505
5-2. Steps to take in an emergency
■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 in specting 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 compartm ent may be very hot, causing serious
injury such as burns.
●Keep hands and clothing away from the fans 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 resu lt from hot coolant and steam released
under pressure.
Add engine coolant if required.
Water can be used in an emer-
gency if engine coolant is
unavailable. ( P. 5 1 7 )
Have the vehicle checked at your nearest Lexus dealer as soon as pos-
sible.
STEP5

576
Alphabetical index
Noise from under vehicle...................... 19
Odometer................................................. 153
OilEngine oil ...............................................395
Opener Fuel filler door.........................................88
Hood....................................................... 388
Trunk ........................................................... 53
Outer foot lights Outer foot lights ...................................319
Wattage.................................................. 525
Outside rear view mirrors Adjusting and folding ......................... 78
Mirror position memory ................... 59
Outside temperature display............ 163
Overhead console ............................... 326
Overhead courtesy lights Overhead courtesy lights ...............319
Wattage.................................................. 525
Overheating, Engine.......................... 504 Parking assist sensors*........................ 185
Parking brake............................................ 151
Parking lights
Replacing light bulbs ........................444
Switch ........................................................ 167
Wattage ................................................. 525
Personal lights Switch ........................................................ 321
Power outlet ........................................... 338
Power windows ..........................................81
Radiator ....................................................400
Radio* ....................................................... 223
RDS* .......................................................... 225
Rear sunshade ....................................... 344
Rear turn signal lights Replacing light bulbs ........................444
Wattage ................................................. 525
Rear view mirror Compass ............................................... 359
Rear window defogger* ..................... 218
Replacing Electronic key battery ......................426
Fuses ........................................................ 428
Light bulbs .............................................444
Reporting safety defects for U.S. owners..........................................550
Reset the maintenance data ............380N
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