radiator cap Lexus IS250 2006 Other Functions / LEXUS 2006 IS350/250 FROM MAY 2006 PROD. OWNER'S MANUAL (OM53619U)

265
4-3. Do-it-yourself maintenance
4
Maintenance and care
Engine compartment
IS350
Battery (P. 275)
Engine oil level dipstick (P. 2 6 8 )
Engine oil filler cap (P. 2 6 8 )
Brake fluid reservoir (P. 2 74 )
Fuse boxes ( P. 2 9 9 )Washer fluid tank
( P. 2 7 8 )
Electric cooling fans
Condenser ( P. 2 74 )
Radiator ( P. 2 74 )
Engine coolant reservoir (P. 272)

266
4-3. Do-it-yourself maintenance
IS250
Battery (P. 275)
Engine oil level dipstick (P. 2 6 8 )
Engine oil filler cap (P. 2 6 8 )
Brake fluid reservoir
( P. 2 74)
Fuse boxes ( P. 2 9 9 )
Washer fluid tank
(P. 2 7 8 )
Electric cooling fans
Condenser ( P. 2 74 )
Radiator ( P. 2 74 )
Engine coolant reservoir (P. 272)

273
4-3. Do-it-yourself maintenance
4
Maintenance and care
■If the coolant level drops within a short time after replenishing
Visually check the radiator, hoses, engine coolant filler cap, radiator cap, drain cock
and water pump.
If you cannot find a leak, have your Lexus dealer pressure test the cap and check for
leaks in the cooling system.
■Coolant selection
Only use Toyota Super Long Life Coolant or similar high quality ethylene glycol
based non-silicate, non-amine, non-nitrite, and non-borate coolant with long-life
hybrid organic acid technology.
U.S.A.: Toyota Super Long Life Coolant is a mixture of 50% coolant and 50% deionized water. (Enabled: -31 F [-35C])
Canada: Toyota Super Long Life Coolant is a mixture of 55% coolant and 45% deionized water. (Enabled: -44F [-42 C])
For more details about engine coolant, contact your Lexus dealer.
CAUTION
■When the engine is hot
Do not remove the radiator 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 engine coolant
Coolant is neither plain water not straight antifreeze. The correct mixture of water
and anti freeze 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 damaging parts or paint.

370
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
●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 do wn 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.
Add engine coolant if required.
Water can be used in an emer-
gency measure if engine coolant
is unavailable. ( P. 3 7 9 )
Have the vehicle checked at your nearest Lexus dealer as soon as pos-
sible.
STEP6

413
Alphabetical index
Power outlet ............................................223
Power windows.........................................45
Pre-collision system (PCS) ................ 149
Radar cruise control ............................. 129
Radiator..................................................... 274
Radio................................................................ 178
RDS (Radio data system).................... 179
Rear sunshade ........................................229
Rear turn signal lights Replacing light bulbs ......................... 314
Wattage .................................................388
Rear view mirror Compass ................................................242
Rear window defogger ........................ 174
Replacing Electronic key battery ......................297
Fuses ........................................................ 299
Light bulbs .............................................. 314
Reporting safety defects for U.S.A. owners .................................... 406
Scuff lighting........................................... 205
Seat belts Adjusting the seat belt ....................... 35
Automatic Locking Retractor (ALR) ...................................................... 36
Child restraint system installation ..............................................75
Cleaning and maintaining the seat belts....................................... 251
Emergency Locking Retractor (ELR) ....................................................... 36
How to wear your seat belt..............34
How your child should wear the seat belt........................................... 37 Pregnant women,
proper seat belt use ......................... 36
Reminder light .................................... 335
Seat belt extenders .............................. 37
Seat belt pretensioners ...................... 35
Seat heaters ................................. 224, 226
Seat position memory ............................. 31
Seat ventilators ...................................... 226
Seating capacity ..................................... 155
Seats Child seats/child restraint system installation.............................. 75
Cleaning ................................................ 250
Driving position memory .................. 28
Front passenger seat position memory ....................................................31
Head restraint ......................................... 33
Properly sitting in the seat ................59
Seat adjustment ..................................... 26
Seat adjustment precautions........... 27
Seat heaters .............................. 224, 226
Ventilated seats .................................. 226
Service reminder indicators ................ 111
Shift lever Automatic transmission ..................... 97
If the shift lever cannot be shifted from P .................................... 361
Manual transmission ........................... 101
Shift lever lighting .................................205
Shift lock system ..................................... 361
Shopping bag hooks............................ 234
Side airbags..................................................61
Side marker lights Switch.......................................................... 118
Side mirror Adjusting and folding.......................... 43
Driving position memory .................. 28
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