tire size Lexus GS350 2013 Owner's Guide

766
GS350_U (OM30C34U)
8-1. Specifications
Tire size (→ P. 76 8 )
DOT and Tire Identification Number (TIN) (→P. 76 7 )
Location of treadwear indicators (→ P. 6 2 9 )
Tire ply composition and materials
Plies are layers of rubber-coated parallel cords. Cords are the strands which form
the plies in a tire.
Radial tires or bias-ply tires
A radial tire has “RADIAL” on the sidewall. A tire not marked “RADIAL” is a bias-
ply tire.
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.
Load limit at maximum cold tire inflation pressure ( →P. 772)
Maximum cold tire inflation pressure ( →P. 772)
This means the pressure to which a tire may be inflated.
Uniform tire quality grading
For details, see “Uniform Tire Quality Grading” that follows.
Summer tires or all season tires (→P. 6 3 4 )
An all season tire has “M+S” on the sidewall. A tire not marked “M+S” is a summer
tire.
“TEMPORARY USE ONLY”
A compact spare tire is identified by the phrase “TEMPORARY USE ONLY”
molded on its sidewall. This tire is designed for temporary emergency use only.
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GS350_U (OM30C34U)
7678-1. Specifications
8
Vehicle specifications
DOT symbol*
Tire Identification Number (TIN)
Tire manufacturer’s identification
mark
Tire size code
Manufacturer’s optional tire type
code (3 or 4 letters)
Manufacturing week
Manufacturing year
*: The DOT symbol certifies that the tireconforms to applicable Federal Motor
Vehicle Safety Standards.
Typical DOT and Tire Identification Number (TIN)
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7

768
GS350_U (OM30C34U)
8-1. Specifications
■Typical tire size information
The illustration indicates typical
tire size.Tire use (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)
■Tire dimensionsSection width
Tire height
Wheel diameter
Tire s ize
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7
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GS350_U (OM30C34U)
7738-1. Specifications
8
Vehicle specifications
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
Vehicle maximum load on
the tireThe load on an individual tire that is determined by
distributing to each axle its share of the maximum
loaded vehicle weight, and dividing by two
Vehicle normal load on
the tire
The load on an individual tire that is determined by
distributing to each axle its share of curb weight,
accessory weight, and normal occupant weight (dis-
tributed in accordance with Table 1
* below), and
dividing by two
Weather sideThe surface area of the rim not covered by the
inflated tire
Bead
The part of the tire that is made of steel wires,
wrapped or reinforced by ply cords and that is
shaped to fit the rim
Bead separationA breakdown of the bond between components in
the bead
Bias ply tire
A pneumatic tire in which the ply cords that extend to
the beads are laid at alternate angles substantially
less than 90 degrees to the centerline of the tread
CarcassThe tire structure, except tread and sidewall rubber
which, when inflated, bears the load
ChunkingThe breaking away of pieces of the tread or sidewall
CordThe strands forming the plies in the tire
Cord separationThe parting of cords from adjacent rubber com-
pounds
CrackingAny parting within the tread, sidewall, or innerliner of
the tire extending to cord material
Tire related termMeaning

823Alphabetical index
GS350_U (OM30C34U)
Tachometer ....................................... 79, 92
Tail lights.................................................... 190Light switch ............................................ 190
Replacing light bulbs ..........................671
Welcome light illumination
control .....................................................101
Talk switch
*............................................ 334
Telephone switches
*.......................... 486
Theft deterrent system
Alarm........................................................... 70
Engine immobilizer system ..............68
Tire inflation pressure ......................... 759 Maintenance data ..............................759
Tire inflation pressure display function .................................................. 85
Warning light ...................................... 690
Warning message ...............................713
Tire information ..................................... 765 Glossary ................................................. 772
Size ........................................................... 768
Tire identification number.............. 767
Uniform Tire Quality Grading...............................................770
Tire pressure warning system ...........631 Function ................................................... 631
Initializing ................................................. 631
Installing tire pressure warning
valves and transmitters ................. 631
Registering ID codes .......................633
Tire pressure warning reset switch.................................................... 632
Warning light ...................................... 690
Warning message .....................713, 714 Tires ............................................................629
Chains .................................................... 300
Checking ............................................... 629
If you have a flat tire ...........................722
Inflation pressure................................ 759
Information............................................ 765
Replacing ................................................722
Rotating tires ........................................630
Size ........................................................... 759
Snow tires .............................................. 302
Spare tire.................................................722
Tire inflation pressure display
function................................................... 85
Tire pressure warning system .......631
Warning light ...................................... 690
Warning message............................... 713
Tools ...........................................................723
Top tether strap ........................................64
Total load capacity.................................168
Towing Dinghy towing .......................................170
Emergency towing ........................... 678
Towing eyelet ...................................... 679
Trailer towing.........................................169
TRAC (Traction Control)................. 268
Transmission ............................................ 178 Automatic transmission ....................178
Driving mode select switch .......... 263
If the shift lever cannot be shifted from P ....................................737
M mode ..................................................... 181
Paddle shift switches......................... 180
Trip information ....................................... 83
Trip meters.................................................. 79
T
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.

825Alphabetical index
GS350_U (OM30C34U)
Warning buzzersBrake system....................................... 686
Downshifting ......................................... 182
Key reminder ......................................... 717
Open door ............................................704
Open moon roof .............................. 705
Open hood ...........................................704
Open trunk .......................................... 705
Open window .................................... 705
Seat belt reminder ............................ 689
Warning lights .......................................... 75
ABS .......................................................... 687
AFS OFF indicator ........................... 688
Brake system.......................... 686, 689
Charging system............................... 687
Electric power steering.................. 687
Low fuel level ...................................... 689
Malfunction indicator lamp .......... 687
Master warning light........................ 689
Open door ........................................... 689
Parking brake indicator ................. 688
Pre-collision system......................... 688
Seat belt reminder light .................. 689
Slip indicator ........................................ 688
SRS ........................................................... 687
Tire pressure ....................................... 690
Warning messages .............................. 697
Warning reflector storage belt.......560
Washer .......................................................196
Checking............................................... 628
Low washer fluid warning message ............................. 712
Preparing and checking
before winter ................................... 298
Switch........................................................ 196
Washing and waxing........................... 594 Weight
Cargo capacity.................................... 168
Load limits .............................................. 168
Weight .................................................... 752
Welcome light illumination control ...................................................... 101
Wheels ......................................................642 Replacing wheels .............................. 642
Size ........................................................... 759
Window glasses...................................... 145
Window lock switch.............................. 145
Windows.................................................... 145
Power windows....................................145
Rear window defogger ..................365
Windshield wiper de-icer ................. 366
Windshield wipers ................................. 196 Intermittent windshield wipers with interval adjuster .......196
Position .................................................... 301
Rain-sensing windshield wipers.................................................... 198
Winter driving tips ............................... 298
Wireless remote control key...............114 Battery-Saving Function ..................107
Locking/Unlocking ..............................114
Replacing the battery ...................... 646
WMA disc................................................. 414
XM
® Satellite Radio ........................... 398
W
X