2006 Lexus IS250 inflation pressure

TABLE OF CONTENTSIndex
• Bottle holders/door pockets ......................................... 209
3-5. Other interior features............. 211 Sun visors............................................ 211
Vanity mirror ................................... 212
Clock .................................................. 213
Satellite switch es ........................... 214
Ashtrays ............................................ 217
Cigarette lighter ............................ 218
Power outlet .................................... 219
Seat heaters .................................... 220
Seat heaters and ve ntilators .... 222
Armrest ............................................ 224
Rear sunshade ............................... 225
Extended trunk.............................. 227
Coat hooks ..................................... 228
Floor mat.......................................... 229
Trunk features............................... 230
Garage door opener .................. 233
Compass......................................... 238
4-1. Maintenance and care............ 244 Cleaning and protecting the vehicle exterior................... 244
Cleaning and protecting the vehicle interior .................... 246 4-2. Maintenance.............................. 249
Maintenance requirements ..... 249
General maintena nce ................. 251
Emission inspection and maintenance (I/M)
programs ...................................... 254
4-3. Do-it-yourself maintenance............................ 255
Do-it-yourself service precautions .................................. 255
Hood................................................. 258
Positioning the jack ..................... 259
Engine compartment................... 261
Tires ................................................... 275
Tire inflation pressure................ 285
Wheels............................................. 289
Air conditioning filter................... 291
Electronic key battery ................ 293
Checking and replacing fuses ................................................ 295
Headlight aim................................ 309
Light bulbs ........................................ 310
5-1. Essential information ................ 318 If your vehicle needs to be towed ........................................ 318
If you think something is wrong ............................................. 325
4Maintenance and care
5When trouble arises

Tires
●Rotation
● Replacement
● Inflation pressure
● Information
P. 275
P. 348
P. 378
P. 387
: If equipped
Tail lights P. 113
Side marker lights P. 113
Trunk P. 19
Rear window defogger P. 170
Doors P. 15
Fuel filler door P. 47
Turn signal lights P. 98

151
2-5. Driving information
2
When driving
Winter driving tips
Carry out the necessary preparations and inspections before driving the
vehicle in winter. Always drive the vehicle in a manner appropriate to the
prevailing weather conditions.
■ Pre-winter preparations
●Use fluids that are appropria te to the prevailing outside tempera-
tures.
• Engine oil
• Engine coolant
• Washer fluid
• Have a service technician inspect the level and specific gravity
of battery electrolyte.
● Have the vehicle fitted with four snow tires or purchase a set of
tire chains for the rear tires.
Ensure that all tires are the same size and brand, and that chains match
the size of the tires.
● Tire pressure falls in winter as the outside temperature falls. Add
2.9 to 4.3 psi (20 to 30 kPa, 0.2 to 0.3 kgf/cm2 or bar) to the
standard tire inflation pressure.

Maintenance and care4
243
4-1. Maintenance and care ......... 244Cleaning and protecting the vehicle exterior ................ 244
Cleaning and protecting the vehicle interior ................. 246
4-2. Maintenance ........................... 249 Maintenance requirements ............................ 249
General maintena nce .............. 251
Emission inspection and maintenance (I/M)
programs ................................... 254
4-3. Do-it-yourself maintenance ......................... 255
Do-it-yourself service precautions ............................... 255
Hood.............................................. 258
Positioning the jack................... 259
Engine compartment................. 261
Tires ................................................. 275
Tire inflation pressure.............. 285
Wheels........................................... 289 Air conditioning filter ............... 291
Electronic key battery ............. 293
Checking and replacing
fuses ............................................. 295
Headlight aim ............................. 309
Light bulbs..................................... 310

253
4-2. Maintenance
4
Maintenance and care
Vehicle exterior
ItemsCheck points
Steering wheel
• Moves smoothly?
• Has correct free play?
• No strange noises?
ItemsCheck points
Door/trunk• Operate smoothly?
Engine hood• The lock system works properly?
Fluid leaks• Is there any leakage after parking?
Ti r e
• Inflation pressure is correct?
• Tire surfaces not worn or dam-aged?
• Tires rotated according to the maintenance schedule?
• Wheel nuts are not loose?
CAUTION
■If the engine is running
Turn the engine off and ensure that there is adequate ventilation before performing
maintenance checks.

256
4-3. Do-it-yourself maintenance
CAUTION
The engine compartment contains many mechanisms and fluids that may move sud-
denly, become hot, or become electrically energized. To avoid death or serious injury.
■When working on the engine compartment:
●Keep hands, clothing, and tools away from the moving fan and engine drive belt.
●Be careful not to touch the engine, radiator , exhaust manifold, etc. right after driv-
ing as they may be hot. Oil and other fluids may also be hot.
●Do not leave anything that may burn easi ly, such as paper or rags, in the engine
compartment.
●Do not smoke, cause sparks or expose an open flame to fuel or the battery. Fuel
and battery fumes are flammable.
●Be extremely cautious when working on the battery. It contains poisonous and
corrosive sulfuric acid.
ItemsPa r t s a n d t o o l s
Engine oil level ( P. 2 6 4 )
• “Toyota Genuine Motor Oil” or
equivalent
• Rag or paper towel, funnel (used only for adding engine oil)
Fuses ( P. 2 9 5 )• Fuse with same amperage rating as
original
Tire inflation pressure ( P. 2 8 5 )• Tire pressure gauge
• Compressed air source
Headlight aim ( P. 3 0 9 )• Phillips-head screwdriver
Radiator and condenser (P. 2 7 0 )
Wa s h e r f l u i d ( P. 2 74 )
• Water washer fluid containing anti-
freeze (for winter use)
•Funnel

275
4-3. Do-it-yourself maintenance
4
Maintenance and care
Tires
Replace or rotate tires in accordance with maintenance schedules and
tread wear.
■Checking tires
New tread
Tread wear indicator
Worn tread
The location of tread wear indi-
cators is shown by the TWI or 
marks, etc., molded on the side-
wall of each tire.
Check spare tire condition and
pressure if not rotated.
■ Tire rotation
2WD models with 16-inch tires and AWD models
Rotate the tires in the order
shown.
Lexus recommends tire rotation
in accordance with the mainte-
nance schedule to equalize tire
wear and extend tire life.
Do not fail to initialize the tire
inflation warning system after
tire rotation.
2WD models with 17-inch tires or 18-inch tires
Tires cannot be rotated.
Front

276
4-3. Do-it-yourself maintenance
Turning directional tiresTire direction marks
The tires listed below are direc-
tional. The tire sidewalls are
marked with arrows indicating the
rolling direction of the tire. If
mounted on the wrong side of the
vehicle, directional tires will per-
form poorly.
Installing tire inflation pressure sensors
When replacing tires or wheels, new tire pressure sensors must also be
installed. Tire pressure sensors ca n be installed in any of the following
three ways:
● Sensors can be removed from the ol d wheels and installed on the new
wheels.
■ The tire pressure warning system
Your Lexus is equipped with a tire pressure warning system that uses
tire pressure sensors to detect low tire pressure before serious
problems arise. ( P. 331, 335)
Before removing the tire from th e wheel, remove the system’s tire
inflation pressure sensor. Be carefu l not to damage the sensor when
removing and installing the tires.
Ti r e s i z e
FrontRear
225/45R17 90W245/45R17 95W
225/40R18 88Y255/40R18 95Y