tire size Lexus IS F 2011 Using The Bluetooth Audio System /

5
When trouble arises
461
5-2. Steps to take in an emergency
CAUTION
■Maintenance of the tires
Each tire, including the spare (if provided), should be checked monthly when cold
and inflated to the inflation pressure re commended by the vehicle manufacturer on
the vehicle placard or tire inflation pressure label (tire and load information label).
(If your vehicle has tires of a different size than the size indicated on the vehicle
placard or tire inflation pressure label [tire and load information label], you should
determine the proper tire inflation pressure for those tires.)
As an added safety feature, your vehicl e has been equipped with a tire pressure
monitoring system (TPMS-tire pressure warning system) that illuminates a low tire
pressure telltale (tire pressure warning light) when one or more of your tires is sig-
nificantly under-inflated. Accordingly, when the low tire pressure telltale (tire pres-
sure warning light) illuminates, you should stop and check your tires as soon as
possible, and inflate them to the proper pressure. Driving on a significantly under-
inflated tire causes the tire to overheat an d can lead to tire failure. Under-inflation
also reduces fuel efficiency and tire tread life, and may affect the vehicle's handling
and stopping ability.
Please note that the TPMS (tire pressure warning system) is not a substitute for
proper tire maintenance, and it is the driver's responsibility to maintain correct tire
pressure, even if under-inflation has not reached the level to trigger illumination of
the TPMS low tire pressure telltale (tire pressure warning light).
Your vehicle has also been equipped with a TPMS (tire pressure warning system)
malfunction indicator to indicate when th e system is not operating properly. The
TPMS (tire pressure warning system) malf unction indicator is combined with the
low tire pressure telltale (tire pressure warning light). When the system detects a
malfunction, the telltale will flash for approximately one minute and then remain
continuously illuminated. This sequence will continue upon subsequent vehicle
start-ups as long as the malfunction exists . When the malfunction indicator is illumi-
nated, the system may not be able to detect or signal low tire pressure as intended.
TPMS (tire pressure warning system) malfunctions may occur for a variety of rea-
sons, including the installation of replacem ent or alternate tires or wheels on the
vehicle that prevent the TPMS (tire pressure warning system) from functioning
properly. Always check the TPMS (tire pressure warning system) malfunction tell-
tale after replacing one or more tires or wheels on your vehicle to ensure that the
replacement or alternate tires and wheels allow the TPMS (tire pressure warning
system) to continue to function properly.

511
6-1. Specifications
6
Vehicle specifications
Steering
Tires and wheels
Free playLess than 1.2 in. (30 mm)
Ti r e s i z e
Front: 225/40R19 93Y
Rear: 255/ 35R19 96Y
Spare: T135/70R18 103M
Front and rear tire inflation pres-
sure
(Recommended cold tire inflation
pressure)
Front:
36 psi (250 kPa, 2.5 kgf/cm2 or bar)*
Rear:
36 psi (250 kPa, 2.5 kgf/cm
2 or bar)*
Spare:
60 psi (420 kPa, 4.2 kgf/cm
2 or bar)
*: When driving at high speeds above 100 mph
(160 km/h), in countries where such speeds
are permitted by law, add 9.0 psi (60 kPa, 0.6
kgf/cm
2 or bar) to the front tires and rear tires.
Never exceed the maximum cold tire inflation
pressure indicated on the tire sidewall.
Wheel size
Front wheels: 19  8J
Rear wheels: 19  9J
Spare wheel: 18  4T
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)

516
6-1. Specifications
Tire information
Ty p i c a l t i r e s y m b o l s
Standard tire
Compact spare tire
Tire size (P. 5 1 8 )
DOT and Tire Identification Number (TIN) ( P. 5 1 8 )
Location of treadwear indicators ( P. 3 9 7 )
Tire ply composition and materials
Plies are layers of rubber-coated parallel cords. Cords are the strands
which form the plies in a tire.

518
6-1. Specifications
Typical DOT and tire identification number (TIN)DOT symbol
*
Tire Identification Number (TIN)
Tire manufacturer's identifica-
tion mark
Tire size code
Manufacturer's optional tire
type code (3 or 4 letters)
Manufacturing week
Manufacturing year
*: The DOT symbol certifies thatthe tire conforms to applicable
Federal Motor Vehicle Safety
Standards.
Tire size
■ Typical tire size information
The illustration indicates typical
tire size.
Ti r e u s e
(P = Passenger car,
T = Temporary use)
Section width (millimeters)
Aspect ratio
(tire height to section width)
Tire construction code
(R = Radial, D = Diagonal)
Wheel diameter (inches)
Load index (2 digits or 3 digits)
Speed symbol
(alphabet with one letter)

522
6-1. Specifications
Curb weight
The weight of a motor vehicle with standard equip-
ment, including the maximum capacity of fuel, oil and
coolant, and if so equipped, air conditioning and
additional weight optional engine
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
Occupant distributionDistribution of occupants in a vehicle as specified in
the third column of Table 1
* below
Production options
weight
The combined weight of installed regular production
options weighing over 5 lb. (2.3 kg) in excess of the
standard items which they replace, not previously
considered in curb weight or accessory weight,
including heavy duty brakes, ride levelers, roof rack,
heavy duty battery, and special trim
RimA metal support for a tire or a tire and tube assembly
upon which the tire beads are seated
Rim diameter
(Wheel diameter)Nominal diameter of the bead seat
Rim size designationRim diameter and width
Rim type designationThe industry manufacturer's designation for a rim by
style or code
Rim widthNominal distance between rim flanges
Vehicle capacity weight
(Total load capacity)The rated cargo and luggage load plus 150 lb. (68
kg) times the vehicle's designated seating capacity
Tire related termMeaning

561
Alphabetical index
Spare tireInflation pressure ...............................408
Storage location.................................. 477
Spark plug ............................................... 508
Specifications......................................... 502
Speedometer ........................................... 146
Steering wheel Adjustment ...............................................67
Audio switches ....................................267
Steering wheel positionmemory ................................................... 51
Storage feature ..................................... 323
Stuck If your vehicle becomes stuck .... 498
Sun visors................................................. 329
Sunshade ..................................................... 77
Switch Emergency flasher switch ..............442
Engine switch ........................................130
Fog light switch.......................................161
F-sport mode total control switch .......................................... 136, 189
Hazard light switch............................442
Ignition switch........................................130
Light switches....................................... 158 Power door lock switch .................... 42
Power window switch ........................ 73
Satellite switches................................. 332
SNOW switch ..................................... 136
Transmission shift
switches ...................................... 137, 139
Window lock switch............................ 73
Wiper and washer switch................162
Tachometer.............................................. 146
Tail lights Switch........................................................ 158
Talk switch ............................................... 293
Telephone switch .................................. 293
Theft deterrent system Alarm.......................................................... 85
Engine immobilizer system..............83
Theft prevention labels ......................... 88
Tire inflation pressure ........................ 408
Tire information Glossary .................................................. 521
Size ............................................................. 518
Tire identification number............... 518
Uniform tire quality grading .......... 519
T

562
Alphabetical index
TiresChains ..................................................... 204
Checking ............................................... 397
If you have a flat tire ...........................477
Inflation pressure............................... 408
Inflation pressure sensor................ 397
Information............................................. 516
Replacing ................................................477
Rotating tires ........................................ 397
Size .............................................................. 511
Snow tires .............................................. 204
Tools ........................................................... 477
Total load capacity ...............................203
Towing Dinghy towing ..................................... 207
Emergency towing ........................... 443
Trailer towing.......................................206
TRAC.......................................................... 187
Traction control ...................................... 187
Transmission shift switches ...... 137, 139
Trip meter ................................................. 146
Trunk Extending trunk space ......................341
Opener ...................................................... 46
Trunk light Trunk light..................................................47
Wattage....................................................512 Turn signal lights
Replacing light bulbs ....................... 435
Switch ........................................................ 143
Wattage ................................................... 512
USB port ....................................... 246, 254
Vanity lights Vanity lights.......................................... 330
Wattage ................................................... 512
Vanity mirrors ........................................ 330
VDIM...........................................................187
Vehicle dynamics integrated management .........................................187
Vehicle identification number.........503
Vehicle stability control .......................187
Voice command switch ..................... 293
VSC .............................................................187
Warning buzzers Brake system ....................................... 453
Open door .......................................... 456
Seat belt reminder ............................ 456
U
V
W