engine Lexus IS250 2006 Using the audio system / LEXUS 2006 IS350/250 THROUGH APRIL 2006 PROD. OWNER'S MANUAL (OM53508U)

377
6-1. Specifications
6
Vehicle specifications
Brakes
*1: Minimum pedal clearance when depressed with a force of 50 kgf (490 N, 110lbf) while the engine is running.
*2: Parking brake pedal travel when depressed with a force of 30.6 kgf (300 N,67.4 lbf).
*3: Parking brake lever travel when pulled up with a force of 20.4 kgf (200 N,50.0 lbf).
Pe d a l c l e a r a n c e *1
IS 350
IS 250
Manual transmission
Automatic transmission4.13 in. (105 mm) Min.
4.09 in. (104 mm) Min.
4.3 in. (108 mm) Min.
Pedal free play0.04  0.08 in. (1.0  2.0 mm)
Brake pad wear limit0.04 in. (1.0 mm)
Parking brake lining wear limit0.04 in. (1.0 mm)
Parking brake pedal travel *2/
lever travel *3
Pe d a l t y p e
Lever type7  9 clicks
4
 6 clicks
Fluid typeSAE J1703 or FMVSS No. 116 DOT 3

384
6-1. Specifications
Fuel information
■Fuel tank opening for unleaded gasoline
To help prevent incorrect fueling, your Lexus has a fuel tank opening that only acco-
modates the special nozzle on unleaded fuel pumps.
■If premium gasoline is not available
If this premium fuel is not available, you may use unleaded gasoline with an Octane
Rating of 87 or so (Research Octane Number 91).
IS250: The use of such gasoline will cause persistent heavy knocking. If severe, this
will lead to engine damage.
IS350: The use of such gasoline may cause the engine to knock or drastically
reduce output to protect itself while driving with a heavy load. To avoid this, refill the
tank with premium unleaded gasoline as soon as possible.
■If your engine knocks
●Consult your Lexus dealer.
●You may occasionally notice light knocking for a short time while accelerating
or driving uphill. This is normal and there is no need for concern.
■Gasoline quality
In very few cases, driveability problems may be caused by the brand of gasoline you
are using. If driveability problems persist, try changing the brand of gasoline. If this
does not correct the problem, consult your Lexus dealer.
Your vehicle must use only unleaded gasoline.
Premium unleaded gasoline with an Octane Rating of 91 (Research
Octane Number 96) or higher required for optimum engine performance.
At minimum, the gasoline you us e should meet the specifications of
ASTM D4814 in the U.S.A. an d CGSB3.5-M93 in Canada.

385
6-1. Specifications
6
Vehicle specifications
■Gasoline quality standards
●Automotive manufacturers in the US, Europe and Japan have developed a
specification for fuel quality called World-Wide Fuel Charter (WWFC) that is
expected to be applied worldwide.
●The WWFC consists of four categories that are based on required emission
levels. In the US, category 4 has been adopted.
●The WWFC improves air quality by lowering emissions in vehicle fleets, and
customer satisfaction through better performance.
■Lexus recommends the use of gasoline containing detergent additives
●Lexus recommends the use of gasoline that contains detergent additives to
avoid build-up of engine deposits.
●All gasoline sold in the US contains de tergent additives to clean and/or keep
clean intake systems.
■Lexus recommends the use of cleaner burning gasoline
Cleaner burning gasoline, including reform ulated gasoline that contains oxygen-
ates such as ethanol or MTBE (Methyl Te rtiary Butyl Ether) is available in many
areas.
Lexus recommends the use of cleaner burning gasoline and appropriately blended
reformulated gasoline. These types of gasoline provide excellent vehicle perfor-
mance, reduce vehicle emissions and improve air quality.
■Lexus does not recommend blended gasoline
●Lexus allows the use of oxygenate blended gasoline where the oxygenate con-
tent is up to 10% ethanol or 15% MTBE.
●If you use gasohol in your Lexus, be sure that it has an octane rating no lower
than 87.
●Lexus DOES NOT recommend the use of gasoline containing methanol.
■Lexus does not recommend gasoline containing MMT
Some gasoline contains octane enhancin g additive called MMT (Methylcy clopen-
tadienyl Manganese Tricarbonyl).
Lexus DOES NOT recommend the use of gasoline that contains MMT. If fuel con-
taining MMT is used, your emission control system may be adversely affected.
The malfunction indicator lamp on the inst rument cluster may come on. If this hap-
pens, contact your Lexus dealer for service.

386
6-1. Specifications
NOTICE
■Notice on gasoline quality
●Do not use leaded gasoline.
Leaded gasoline can cause damage to your vehicle’s three-way catalytic convert-
ers causing the emission control system to malfunction.
●Do not use gasohol other than that stated here.
Other gasohol may cause fuel system damage or vehicle performance problems.
●Using unleaded gasoline with an octane number or rating lower than that stated
here will cause persistent heavy knocking.
At worst, this will lead to engine damage.
■Fuel-related poor driveability
If after using a different type of fuel, poor driveability is encountered (poor hot start-
ing, vaporization, engine knoc king, etc.), discountinue the use of that type of fuel.
■When refueling with gasohole
Take care not to spill gasohol. It can damage your vehicle's paint.

392
6-1. Specifications
Warning: The temperature grades for this tire are established for a tire that
is properly inflated and not overloaded.
Excessive speed, underinflation, or excessive loading, either separately or in
combination, can cause heat buildup and possible tire failure.
Glossary of tire terminology
Tire related termMeaning
Accessory weight
The combined weight (in excess of those standard
items which may be replaced) of automatic transmis-
sion, power steering, power brakes, power windows,
power seats, radio and heater, to the extent that these
items are available as factory-installed equipment
(whether installed or not)
Cold tire inflation pres-
sureTire pressure when the vehicle has been parked for
three hours or more, or has not been driven more
than 1 mile or 1.5 km under that condition
Curb weight
The weight of a motor vehicle with standard equip-
ment, including the maximum capacity of fuel, oil and
coolant, and if so equipp ed, air conditioning and
additional weight optional engine
Maximum inflation pres-
sureThe maximum cold inflated pressure to which a tire
may be inflated, shown on the sidewall of the tire
Maximum loaded vehicle
weight
The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant weight150 lb. (68 kg) times the number of occupants speci-
fied in the second column of Table 1
* that follows

398
6-2. Customization
ItemFunctionDefault settingCustomizedsetting
Windshield
wipers and
washer
(
P. 1 1 7 )
Switching operation when
the vehicle is stationaryONOFF
Drip prevention functionONOFF
Time elapsed before the
drip prevention function
operatesVa r i a b l e
depending on
the vehicle
speed
3 seconds
Lexus parking
assist-sensor
(
P. 1 3 3 )
Back sensor operation
display and buzzerONOFF
Buzzer volumeLevel 3Level 1 to 5
Illumination
(
P. 2 0 1 )
Time elapsed before lights
turn off15 seconds7. 5 s e c o n d s
30 seconds
Operation when the
doors are unlockedONOFF
Operation after the
engine switch turned OFFONOFF
Front foot well lightingONOFF
Shift lever lightingONOFF
Outer foot lightONOFF

399
6
Vehicle specifications
6-3. Initialization
Items to initialize
ItemWhen to initializeReference
Pow e r w i n d ow
• After reconnecting or changing the battery
• After changing a fuse
P. 4 1
Engine oil maintenance
dataAfter changing engine oilP. 2 6 4
Tire inflation pressure
warning system
• When the standard tire pressure changes by replacing tires or wheels
• When tires are rotated
• When tire pressure sensors are
replaced
• When driving with the tires inflated to a higher than standard tire pressure
P. 2 76
After reconnecting or performing main tenance on the battery, the follow-
ing items must be initialized for normal system operation.

405
Alphabetical index
CD player................................................... 181
Chains ......................................................... 153
Child restraint system (CRS)Booster seats, definition.................... 68
Booster seats, installation .................. 72
Convertible seats, definition ........... 68
Convertible seats, installation ......... 72
Infant seats, definition ......................... 68
Infant seats, installation........................ 72
Installing CRS with lower anchorages ...........................................75
Installing CRS with seatbelts ........... 72
Installing CRS with top straps .........76
Child safety Airbag precautions ............................. 63
Battery precautions .............. 273, 364
Child restraint system ........................ 68
Child-protectors..................................... 16
How your child should wear the seatbelt ............................................33
Installing child restraints .......................71
Moon roof .................................................46
Power window lock switch ............... 41
Power window precautions.............43
Removed electronic key battery precautions ....................................... 294
Seat belt comfort guide....................... 31
Seat belt extender precautions ..... 35
Seat belt precautions...........................34
Seat heater precautions ........221, 223
Trunk ..............................................................21
Child-protectors ....................................... 16
Cigarette lighter ..................................... 218 Cleaning
Exterior.................................................... 244
Interior ..................................................... 246
Seat belts ................................................ 247
Clock .......................................................... 213
Coat hooks ..............................................228
Compass ..................................................238
Condenser .............................................. 270
Console box ...........................................206
Cooling system Engine overheating.......................... 365
Cornering assist sensors .................... 133
Cruise control Cruise control......................................... 121
Dynamic radar cruise control........124
Cup holder ............................................. 208
Curtain shield airbags............................ 57
Customizable features .......................395
Daytime running light system ............. 114
Defogger Rear window ......................................... 170
Side mirror.............................................. 170
Dimension................................................ 370
Dinghy towing ............................... 157, 158
Display Dynamic radar cruise control........124
Satellite switch mode .........................214
Trip information ..................................... 110
Warning message .............................334
Do-it-yourself maintenance .............255
Door courtesy lights Door courtesy lights .......................... 201
Wattage ................................................. 383
Door pockets..........................................209
D

406
Alphabetical index
DoorsDoor glasses ............................................. 41
Door lock.................................................... 15
Side mirrors ............................................. 39
Driver's seat belt reminder light ...... 331
Driving Correct posture .................................... 55
Procedures .............................................. 82
Driving position memory ...................... 24
Electric power steering (EPS).......... 139
Electronic key If your electronic key battery is discharged ....................................359
Emergency, in case of If the engine will not start ...............356
If the shift lever cannot be shifted from P ................................... 357
If the vehicle has discharged battery .................................................. 362
If the warning buzzer sounds ...... 329
If the warning light turns on .......... 329
If the warning message is
displayed ............................................ 334
If you have a flat tire .........................348
If you lose your keys.........................358
If you think something is wrong ................................................... 325
If your electronic key battery is discharged ....................................359
If your vehicle becomes stuck..... 367
If your vehicle needs to be towed .................................................... 318
If your vehicle overheats ................365
Engine Compartment ....................................... 261 Engine switch ......................................... 89
Hood ....................................................... 258
How to start the engine .................... 89
If the engine will not start ............... 356
Overheating ........................................ 365
Engine compartment cover ............. 263
Engine coolant Capacity .................................................374
Checking............................................... 268
Preparing and checking before winter........................................151
Engine coolant temperature gauge ...................................................... 100
Engine immobilizer system ................. 50
Engine oil Capacity .................................................373
Checking................................................264
Preparing and checking before winter........................................151
Engine oil maintenance data ........... 267
EPS (Electric power steering) ..........139
Event data recorder ............................ 327
First-aid kit storage belt ..................... 230
Floor mat .................................................. 229
Fluid Brake ........................................................270
Washer.................................................... 274
Fog lights Switch .......................................................... 116
Wattage ................................................. 383
Foot well lighting.................................... 201
Front fog lights Switch .......................................................... 116
Wattage ................................................. 383
E
F

407
Alphabetical index
Front passenger's seat belt reminder light ....................................... 331
Front seats Adjustment ............................................... 22
Driving position memory ..................24
Seat position memory ......................... 27
Front turn signal lights Wattage ................................................. 383
Fuel Capacity..................................................372
Fuel gauge ............................................. 100
Fuel pump shut off system ............ 326
Gas station information ................... 415
Information............................................ 384
Refueling .................................................... 47
Fuel filler door............................................ 47
Fuel pump shut off system .................326
Fuses.......................................................... 295
Garage door opener.......................... 233
Gas station information ....................... 415
Gauges...................................................... 100
Glove box ............................................... 205
Glove box light...................................... 206
Head restraints Adjusting ..................................................29
Headlight aim ........................................ 309
Headlight cleaner .................................. 120
Headlights Discharge headlights precautions ......................................... 316
Replacing light bulbs .........................310
Switch ..........................................................113
Wattage ................................................. 383 Heaters
Seat heaters .............................. 220, 222
Side mirror.............................................. 170
Hill-start assist control ......................... 139
Hood ..........................................................258
Hooks Cargo ......................................................230
Coat..........................................................228
Shopping bag ......................................230
I/M test...................................................... 254
Illuminated entry system ....................202
Indicator lights......................................... 106
Initialization Items to initialize ................................ 399
Inside rear view mirror ..........................38
Interior lights Interior lights .......................................... 201
Switch.......................................................203
Wattage ................................................. 383
Jack Positioning the jack ...........................259
Replacing the wheel ........................ 348
Jack handle..............................................348
Keys Electronic key .............................................2
Engine switch ..........................................89
If you lose your keys ........................ 358
If your electronic key battery is discharged.................................... 359
Key number .................................................2
Keys .................................................................2
Mechanical key ..........................................2
Wireless remote control ..................... 12
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