2014 Lexus IS250 tires

500
IS350/250_U (OM53758U)9-1. Specifications
*1: Unladen vehicle
*2: Vehicles with 255/35R18 tires
Maintenance data (fuel, oil level, etc.)
Dimensions and weight
Overall length183.7 in. (4665 mm)
Overall width71.3 in. (1810 mm)
Overall height*156.3 in. (1430 mm)
Wheelbase110.2 in. (2800 mm)
Tr e a d*1
Front60.4 in. (1535 mm)
Rear61.0 in. (1550 mm)
60.6 in. (1540 mm)
*2
Vehicle capacity weight (Occupants + lug-
gage)825 lb. (375 kg)

5079-1. Specifications
9
Vehicle specifications
IS350/250_U (OM53758U)
Ty p e A
Ty p e B
Ty p e C
Tires and wheels
Ti r e s i z e205/55R16 91W, T125/70D17 98M (spare)
Tire inflation pressure
(Recommended cold tire
inflation pressure)
Front tire 36 psi (250 kPa, 2.5 kgf/cm2 or bar)
Rear tire 36 psi (250 kPa, 2.5 kgf/cm
2 or bar)
Spare tire 60 psi (420 kPa, 4.2 kgf/cm
2 or bar)
Wheel size16  7J, 17  4T (spare)
Wheel nut torque76 f t•lbf (103 N•m, 10.5 kgf•m)
Ti r e s i z e225/45R17 91W, T125/70D17 98M (spare)
Tire inflation pressure
(Recommended cold tire
inflation pressure)
Front tire
36 psi (250 kPa, 2.5 kgf/cm2 or bar)
Rear tire 36 psi (250 kPa, 2.5 kgf/cm
2 or bar)
Spare tire 60 psi (420 kPa, 4.2 kgf/cm
2 or bar)
Wheel size17  7 1 /2J, 17  4T (spare)
Wheel nut torque76 f t•lbf (103 N•m, 10.5 kgf•m)
Ti r e s i z e225/45R17 91V, T125/70D17 98M (spare)
Tire inflation pressure
(Recommended cold tire
inflation pressure)
Front tire
36 psi (250 kPa, 2.5 kgf/cm2 or bar)
Rear tire 36 psi (250 kPa, 2.5 kgf/cm
2 or bar)
Spare tire 60 psi (420 kPa, 4.2 kgf/cm
2 or bar)
Wheel size17  7 1 /2J, 17  4T (spare)
Wheel nut torque76 f t•lbf (103 N•m, 10.5 kgf•m)

5149-1. Specifications
IS350/250_U (OM53758U)
Ti r e s i z e ( P. 5 1 6 )
TUBELESS or TUBE TYPE
A tubeless tire does not have a tube and air is directly put into the tire. A tube type tire
has a tube inside the tire and the tube maintains the air pressure.
Radial tires or bias-ply tires
A radial tire has “RADIAL” on the sidewall. A tire not marked “RADIAL” is a bias-ply
tire.
Summer tires or all season tires ( P. 4 1 5 )
An all season tire has “M+S” on the sidewall. A tire not marked “M+S” is a summer
tire.
Maximum cold tire inflation pressure ( P. 5 2 0 )
This means the pressure to which a tire may be inflated.
Load limit at maximum cold tire inflation pressure (P. 5 2 0 )
Tire ply composition and materials
Plies are layers of rubber-coated parallel co rds. Cords are the strands which form the
plies in a tire.
Uniform tire quality grading
For details, see “Uniform Tire Quality Grading” that follows.
DOT and Tire Identification Number (TIN) ( P. 5 1 5 )
Location of treadwear indicators (P. 4 1 1 )
“TEMPORARY USE ONLY”
A compact spare tire is identified by the phrase “TEMPORARY USE ONLY” molded
on its sidewall. This tire is design ed for temporary emergency use only.
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10
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5189-1. Specifications
IS350/250_U (OM53758U)
This information has been prepared in acco rdance with regulations issued by the
National Highway Traffic Safety Administration of the U.S. Department of Trans-
portation.
It provides the purchasers and/or prospective purchasers of Lexus vehicles with
information on uniform tire quality grading.
Your Lexus dealer will help answer any questions you may have as you read this infor-
mation.
■DOT quality grades
All passenger vehicle tires must conform to Federal Safety Requirements in
addition to these grades. Quality grad es can be found where applicable on
the tire sidewall between tread shoulder and maximum section width.
For example: Treadwear 200 Traction AA Temperature A
■Tr e a d w e a r
The treadwear grade is a comparative rati ng based on the wear rate of the tire
when tested under controlled conditions on a specified government test
course.
For example, a tire graded 150 would wear one and a half (1 - 1 /2) times as well on
the government course as a tire graded 100.
The relative performance of tires depends upon the actual conditions of their use.
Performance may differ significantly from the norm due to variations in driving
habits, service practices and differences in road characteristics and climate.
■Tr a c t i o n A A , A , B , C
The traction grades, from highest to lowest, are AA, A, B and C, and they rep-
resent the tire’s ability to stop on we t pavement as measured under controlled
conditions on specified government te st surfaces of asphalt and concrete.
A tire marked C may have poor traction performance.
Warning: The traction grade assigned to this tire is based on braking (straight
ahead) traction tests and does not include cornering (turning) traction.
Uniform Tire Quality Grading

5199-1. Specifications
9
Vehicle specifications
IS350/250_U (OM53758U)
■Temperature A, B, C
The temperature grades are A (the highest), B, and C, representing the tire’s
resistance to the generation of heat and its ability to dissipate heat when
tested under controlled conditions on a specified indoor laboratory test
wheel.
Sustained high temperature can cause the material of the tire to degenerate and
reduce tire life, and excessive temperature can lead to sudden tire failure.
Grade C corresponds to a level of perfor mance which all passenger car tires must
meet under the Federal Motor Vehicle Safety Standard No. 109.
Grades B and A represent higher levels of performance on the laboratory test
wheel than the minimum required by law.
Warning: The temperature grades of a tire assume that it is properly inflated and
not overloaded.
Excessive speed, underinflation, or excessiv e loading, either separately or in com-
bination, can cause heat buildup and possible tire failure.

534
IS350/250_U (OM53758U)9-3. Items to initialize
Items to initialize
The following items must be initialized for normal system operation after such
cases as the battery being reconnecte
d, or maintenance being performed on
the vehicle:
ItemWhen to initializeReference
Maintenance data• After the maintenance is per- formedP. 3 9 1
Tire pressure warning system
• When rotating the tires
• When changing the tire inflation
pressure by changing traveling
speed or load weight, etc.
P. 4 1 3

564Alphabetical index
IS350/250_U (OM53758U)
Radar cruise control (dynamic radar cruise control) ..........................196
Radiator .................................................... 406
Radio........................................................... 281
Rear personal lights............................. 357 Wattage ................................................. 509
Rear seats ................................................... 121 Fold down the seatback .................... 121
Luggage security system .................. 110
Rear sunshade ....................................... 367 Operation ..............................................367
Reverse operation feature.............367
Rear turn signal lights ...........................170 Replacing light bulbs ........................439
Turn signal lever .................................. 170
Wattage ................................................. 509
Rear view mirror Inside rear view mirror ......................132
Outside rear view mirrors .............. 134 Rear view monitor system .................. 221
Rear window defoggers .................... 350
Refueling................................................... 188
Capacity.................................................502
Fuel types...............................................502
If the fuel filler door cannot be opened .......................... 190
Opening the fuel tank cap ............. 190
Remote Touch
*
Replacing Electronic key battery ......................427
Fuses ........................................................ 429
Light bulbs............................................. 432
Tires .......................................................... 475
Reporting safety defects for U.S. owners .................................. 536
Reset the maintenance data .............. 391
Rev indicator ............................................. 88
Rev peak ..................................................... 88
R

566Alphabetical index
IS350/250_U (OM53758U)
Shift lever ...................................................164Automatic transmission ................... 164
If the shift lever cannot be shifted from P ............487
Shift lock system.................................... 487
Shift position and gear position ...........81
Side airbags ............................................... 37
Side marker lights................................... 173 Light switch .............................................173
Replacing light bulbs ........................ 442
Side mirrors ..............................................134 Adjusting and folding........................ 134
Blind Spot Monitor............................246
Linked mirror function when reversing ................................. 135
Mirror position memory ...................123
Side turn signal lights ............................170 Replacing light bulbs ........................ 442
Turn signal lever .................................. 170
Slip indicator........................................... 456
Smart access system with push-button start ........................ 114 Antenna location ................................... 114
Entry functions ........................... 103, 109
Starting the engine ............................. 159 SMS (Short message service) .......... 319
Snow mode............................................... 165
Snow tires ................................................ 256
Spare tire ..................................................475
Inflation pressure................................ 507
Storage location ................................. 476
Spark plug ............................................... 504
Specifications......................................... 500
Speedometer .............................................. 81
Speed indicator........................................ 88
Steering lock ............................................. 161 Column lock release .......................... 161
Steering wheel ........................................130 Adjustment............................................. 130
Audio switches ................................... 265
Heated steering wheel ................... 354
Power easy access system ............. 124
Steering wheel position memory .............................. 123
Stop lights Replacing light bulbs ....................... 442
Storage feature ..................................... 358
Stuck If the vehicle becomes stuck........ 497
Sun visors................................................. 365