Page 554 of 609

528
5-2. Steps to take in an emergency
IS250/220d/200d_EE
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
subsides 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 cooling 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 and call any authorized Lexus dealer
or repairer, or another duly qualified and equipped pro-
fessional.
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:
STEP1
STEP2
STEP3
STEP4
Page 574 of 609
544
6-1. Specifications
IS250/220d/200d_EE
Cooling system
Ignition system (IS250 only)
Capacity
IS250
10.3 L (10.9 qt., 9.1 Imp. qt.)
IS220d (without power heater)
8.8 L (9.3 qt., 7.7 Imp. qt.)
IS200d (without power heater)
8.7 L (9.2 qt., 7.7 Imp. qt.)
IS220d and IS200d (with power heater)
9.0 L (9.5 qt., 7.9 Imp. qt.)
Coolant type
Use either of the following.
• “Toyota Super Long Life Coolant”
• Similar high-quality ethylene glycol-based
non-silicate, non-amine, non-nitrite, and non-
borate coolant with long-life hybrid organic
acid technology
Do not use plain water alone.
Spark plug
Make
GapDENSO FK20HBR11
1.1 mm (0.043 in.)
NOTICE
Iridium-tipped spark plugs
Use only iridium-tipped spark plugs. Do not adjust gap when tuning the
engine.
Page 597 of 609

564
Alphabetical index
IS250/220d/200d_EE
Back-up lights
Replacing light bulbs ............453
Wattage .................................552
Battery
Checking ...............................415
If the vehicle has a discharged
battery.................................524
Preparing and checking before
winter .................................239
Bluetooth
® audio* .....................308
Bluetooth® phone* ....................323
Bottle holders ............................360
Brake
Parking brake ........................171
Brake assist................................224
Care
Exterior .................................388
Interior ..................................392
Seat belts...............................393
Cargo hooks ..............................384
CD changer*..............................273
CD player* ................................273
Chains ........................................239
Child restraint system
Baby seats, definition ...........121
Baby seats, installation .........130
Child seats, definition ...........121
Child seats, installation.........130
Installing CRS with ISOFIX
rigid anchor ........................134
Installing CRS with seat belts ....
131
Installing CRS with top straps ....
134Junior seats, definition ......... 121
Junior seats, installation....... 130
Child safety
Airbag precautions............... 116
Battery precautions ...... 419, 527
Child restraint system .......... 121
Child-protectors ..................... 59
How your child should wear
the seat belt.......................... 77
Installing child restraints ..... 130
Moon roof precautions........... 92
Power window lock switch .... 85
Power window precautions.... 88
Removed electronic key battery
precautions ........................ 436
Seat belt comfort guide .......... 75
Seat belt precautions .............. 77
Seat heater precautions 373, 376
Trunk precautions .................. 65
Child-protectors .......................... 59
Cigarette lighter ........................ 369
Cleaning
Exterior ................................ 388
Interior ................................. 392
Seat belts .............................. 393
Clock ........................................ 364
Coat hooks ................................ 381
Condenser ................................. 415
Console box .............................. 356
Cooling system
Engine overheating .............. 528
Cornering assist sensors ........... 217
B
C