2011 Lexus IS250 inflation pressure

537
6-1. Specifications
6
Vehicle specifications
IS350/250_U
Intended outboard
sidewall
(a) The sidewall that contains a whitewall, bears white lettering, or bears manufacturer, brand,
and/or model name molding that is higher or
deeper than the same molding on the other
sidewall of the tire, or
(b) The outward facing sidewall of an asymmetrical
tire that has a particular side that must always
face outward when mounted on a vehicle
Light truck (LT) tire
A tire designated by its manufacturer as primarily
intended for use on lightweight trucks or multipur-
pose passenger vehicles
Load ratingThe maximum load that a tire is rated to carry for a
given inflation pressure
Maximum load ratingThe load rating for a tire at the maximum permissible
inflation pressure for that tire
Maximum permissible
inflation pressureThe maximum cold inflation pressure to which a tire
may be inflated
Measuring rimThe rim on which a tire is fitted for physical dimension
requirements
Open spliceAny parting at any junction of tread, sidewall, or
innerliner that extends to cord material
Outer diameterThe overall diameter of an inflated new tire
Overall width
The linear distance between the exteriors of the side-
walls of an inflated tire, including elevations due to
labeling, decorations, or protective bands or ribs
Passenger car tire
A tire intended for use on passenger cars, multipur-
pose passenger vehicles, and trucks, that have a
gross vehicle weight rating (GVWR) of 10000 lb. or
less.
PlyA layer of rubber-coated parallel cords
Tire related termMeaning

538
6-1. Specifications
IS350/250_U
Ply separationA parting of rubber compound between adjacent
plies
Pneumatic tire
A mechanical device made of rubber, chemicals, fab-
ric and steel or other materials, that, when mounted
on an automotive wheel, provides the traction and
contains the gas or fluid that sustains the load
Radial ply tire
A pneumatic tire in which the ply cords that extend to
the beads are laid at substantially 90 degrees to the
centerline of the tread
Reinforced tire
A tire designed to operate at higher loads and at
higher inflation pressures than the corresponding
standard tire
Section width
The linear distance between the exteriors of the side-
walls of an inflated tire, excluding elevations due to
labeling, decoration, or protective bands
SidewallThat portion of a tire between the tread and bead
Sidewall separationThe parting of the rubber compound from the cord
material in the sidewall
Snow tire
A tire that attains a traction index equal to or greater
than 110, compared to the ASTM E-1136 Standard
Reference Test Tire, when using the snow traction test
as described in ASTM F-1805-00, Standard Test
Method for Single Wheel Driving Traction in a
Straight Line on Snow-and Ice-Covered Surfaces,
and which is marked with an Alpine Symbol (
)
on at least one sidewall
Te s t r i mThe rim on which a tire is fitted for testing, and may be
any rim listed as appropriate for use with that tire
Tr e a dThat portion of a tire that comes into contact with the
road
Tire related termMeaning

546
IS350/250_U
6-3. Initialization
Items to initialize
ItemWhen to initializeReference
Engine oil maintenance
data (U.S.A. only)After changing engine oilP. 3 8 9
Ti r e p r e s s u r e w a r n i n g
system
• When rotating the tires with differing front and rear tire inflation pressures.
• When changing the tire inflation pressure by changing traveling
speed.
•When changing the tire size.
P. 4 0 1
The following items must be initialized for normal system operation in cases
such as after the battery is reconnected, or maintenance is performed on
the vehicle.

571
Alphabetical index
IS350/250_U
Shift leverAutomatic transmission.................... 139
If the shift lever cannot be shifted from P ..................................... 491
Manual transmission ..........................145
Shift lever lights ....................................... 315
Shift lock system ..................................... 491
Shopping bag hooks ............................ 347
Side airbags ................................................93
Side marker lights
Switch ........................................................165
Side mirror
Adjusting and folding .......................... 72
Mirror position memory ................... 53
“SOS” button ......................................... 360
Smart access system with push-button startEntry function ......................................... 28
Starting the engine.............................. 134
Spare tire
Inflation pressure ................................. 412
Storage location...................................481
Spark plug .................................................515
Specifications......................................... 508
Speedometer Speed indicator ......................................151
Speedometer ..........................................151 Steering wheel
Audio switches ....................................263
Manual adjustment............................... 67
Power adjustment.................................68
Steering wheel positionmemory .................................................. 53
Storage feature....................................... 319
Stuck If your vehicle becomes stuck .... 504
Sun visors ................................................. 326
Sunshade Rear........................................................... 342
Roof.............................................................. 79
Switch
ECT switch............................................. 140
Emergency flasher switch ............ 450
Engine switch ........................................ 134
ETCS switch .......................................... 146
Fog light switch .................................... 168
Hazard light switch .......................... 450
Ignition switch ....................................... 134
Light switches ....................................... 165
Power door lock switch .................... 43
Power window switch ........................ 75
Satellite switches.................................329
Transmission shift switches .............142
Window lock switch............................ 75
Wiper and washer switch............... 169

572
Alphabetical index
IS350/250_U
TachometerTacho indicator...................................... 151
Tachometer ............................................. 151
Tail lights
Switch ....................................................... 165
Talk switch ...............................................289
Telephone switch ................................. 288
Theft deterrent system
Alarm .......................................................... 87
Engine immobilizer system ............. 85
Theft prevention labels ..........................90
Tire inflation pressure .......................... 412
Tire information Glossary................................................. 533
Size ...........................................................530
Tire identification number .............530
Uniform tire quality grading ...........531
Tires
Chains ...................................................... 195
Checking .............................................. 400
If you have a flat tire........................... 481
Inflation pressure.................................. 412
Inflation pressure sensor................ 402
Information............................................528
Replacing................................................ 481
Rotating tires ....................................... 400
Size ............................................................ 519
Snow tires ............................................... 195
Tools ............................................................ 481
Total load capacity ................................ 194 Towing
Dinghy towing ......................... 200, 201
Emergency towing ............................. 451
Trailer towing ........................................ 199
TRAC ......................................................... 185
Traction control...................................... 185
Transmission shift switches.................142
Trip meter ................................................... 151
Trunk Extending trunk space.....................344
Opener ...................................................... 47
Trunk light
Trunk light ................................................ 48
Wattage ................................................. 524
Turn signal lights Replacing light bulbs ....................... 439
Switch........................................................ 147
Wattage ................................................. 524
USB port ...................................................... 250
Vanity lights Vanity lights........................................... 327
Wattage ................................................. 524
Vanity mirrors ........................................ 327
VDIM.......................................................... 185
Vehicle dynamics integrated management ........................................ 185
Vehicle identification number .........509
Vehicle stability control ...................... 185
Ventilators ...............................................338
Voice command switch .....................288
VSC ............................................................ 185T
U
V

576
IS350/250_U
GAS STATION INFORMATION
Auxiliary catch leverP. 3 8 3Trunk openerP. 4 7Fuel filler door P. 8 2
Hood lock release lever P. 3 8 3Fuel filler door openerP. 8 2Tire inflation pressureP. 5 1 9
Fuel tank capacity
(Reference)17.2 gal. (65 L, 14.3 Imp. gal.)
Fuel typeUnleaded gasoline only P. 83, 511
Cold tire inflation
pressureP. 5 1 9
Engine oil capacity
(Drain and refill 
reference)
qt. (L, Imp. qt.)
(2WD models) (AWD models)
Without filter 6.2 (5.9
, 5.2)6.3 (6.0, 5.3)
With filter 6.6 (6.3, 5.5) 6.7 (6.4, 5.6)
Engine oil typeToyota Genuine Motor Oil or equivalent
Oil grade: ILSAC multigrade engine oil P. 512