2013 Lexus GX460 flat tire

779
6-1. Specifications
6
Vehicle specifications
GX460_OM_OM60J63U_(U)■
Traction AA, A, B, C
The traction grades, from highest to lowest, are AA, A, B and C, and
they represent the tire’s ability to stop on wet pavement as measured
under controlled condit ions on specified government test 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) trac-
tion.
■ Temperature A, B, C
The temperature grades are A (the hi ghest), 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 fail-
ure.
The grade C corresponds to a level of performance which all passenger car
tires must meet under the Federal Mo tor 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 excess ive loading, either separately or in
combination, can cause heat build up and possible tire failure.

780
6-1. Specifications
GX460_OM_OM60J63U_(U)
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation
pressureTire pressure when the vehicle has been parked for
three hours or more, or has not been driven more
than 1 mile or 1.5 km under that condition
Maximum inflation pres-
sureThe maximum cold inflated pressure to which a tire
may be inflated, shown on the sidewall of the tire
Recommended inflation
pressureCold tire inflation pressure recommended by a man-
ufacturer
Accessory weight
The combined weight (in excess of those standard
items which may be replaced) of automatic trans-
mission, power steering, power brakes, power win-
dows, power seats, radio and heater, to the extent
that these items are available as factory-installed
equipment (whether installed or not)
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

782
6-1. Specifications
GX460_OM_OM60J63U_(U)
Tire related termMeaning
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
We a t h e r s i d eThe 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

783
6-1. Specifications
6
Vehicle specifications
GX460_OM_OM60J63U_(U)
Tire related termMeaning
CrackingAny parting within the tread, sidewall, or innerliner
of the tire extending to cord material
CT
A pneumatic tire with an inverted flange tire and rim
system in which the rim is designed with rim flanges
pointed radially inward and the tire is designed to fit
on the underside of the rim in a manner that
encloses the rim flanges inside the air cavity of the
tire
Extra load tire
A tire designed to operate at higher loads and at
higher inflation pressures than the corresponding
standard tire
GrooveThe space between two adjacent tread ribs
InnerlinerThe layer(s) forming the inside surface of a tubeless
tire that contains the inflating medium within the tire
Innerliner separationThe parting of the innerliner from cord material in
the carcass
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 asymmetrical tire
that has a particular side that must always face out-
ward when mounted on a vehicle

784
6-1. Specifications
GX460_OM_OM60J63U_(U)
Tire related termMeaning
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 dimen-
sion 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
sidewalls 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

785
6-1. Specifications
6
Vehicle specifications
GX460_OM_OM60J63U_(U)
Tire related termMeaning
PlyA layer of rubber-coated parallel cords
Ply separationA parting of rubber compound between adjacent
plies
Pneumatic tire
A mechanical device made of rubber, chemicals,
fabric and steel or other materials, that, when
mounted on an automotive wheel, provides the trac-
tion 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
sidewalls 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

829
Alphabetical index
GX460_OM_OM60J63U_(U)
Electronic keyIf the electronic key does not operate properly .............................744
Emergency, in case of If the electronic key does not operate properly .............................744
If the engine will not start ............... 740
If the shift lever cannot be shifted from P .................................... 742
If the vehicle has discharged battery.................................................. 746
If the warning buzzer sounds...... 693
If the warning light turns on .......... 693
If the warning message is displayed ............................................ 705
If you have a flat tire .........................726
If you lose your keys .........................743
If you think something is wrong.....................................................691
If your vehicle becomes stuck .....752
If your vehicle has to be stopped in an emergency ......... 754
If your vehicle needs to be towed ...................................................685
If your vehicle overheats................ 749
Emergency flashers Switch ...................................................... 684 Engine
Accessory mode................................. 183
Compartment....................................... 618
Engine switch ........................................ 183
Hood ..........................................................617
How to start the engine ................... 183
Identification number .......................759
If the engine will not start................740
Ignition switch ....................................... 183
Overheating ......................................... 749
Engine compartment cover .............. 619
Engine coolant Capacity ................................................. 763
Checking ...............................................624
Preparing and checking before winter ......................................371
Engine coolant temperature gauge....................................................... 199
Engine immobilizer system.................. 119
Engine oil Capacity ...................................................761
Checking .............................................. 620
Preparing and checking before winter ......................................371
Engine switch .......................................... 183
Engine switch light................................525
Event data recorder (EDR) ................. 23E
*: For vehicles with a navigation system, refer to the “Navigation System Owner’s Manual”.

834
Alphabetical index
GX460_OM_OM60J63U_(U)
SeatsAdjustment................................67, 71, 82
Adjustment precautions ....................... 70, 80, 85
Child seats/child restraint system installation ........................... 155
Cleaning.................................................. 601
Driver’s seat position memory....... 82
Folding down the second seatbacks ...................................... 73, 74
Folding down the third seats .......... 76
Head restraint......................................... 86
Properly sitting in the seat ............... 124
Seat heaters .......................................... 557
Seat position memory ........................ 82
Ventilated seats .................................. 557
Service reminder indicators ............202
Shift lever Automatic transmission................... 190
If the shift lever cannot be shifted from P ....................................742
Shift lever lighting .................................525
Shift lock system .................................... 742
Side airbags.............................................. 126
Side marker lights Replacing light bulbs............ 675, 677
Switch ...................................................... 223
Wattage.................................................. 769 Side mirror
Adjusting and folding ..........................101
Mirror position memory ....................82
Side turn signal lights Replacing light bulbs .......................680
Smart access system with push-button start Antenna location ................................... 34
Entry functions ......................................... 31
Starting the engine.............................. 183
Spare tire Inflation pressure ............................... 768
Storage location ................................. 726
Spark plug ............................................... 763
Specifications ......................................... 758
Speedometer ...........................................199
Steering Column lock release ......................... 187
Fluid .......................................................... 768
Steering wheel Adjustment ............................................... 97
Audio switches ................................... 466
Heated steering wheel ................... 555
Steering wheel position memory ..................................................82
Stop light Replacing light bulbs .......................680
Storage feature ..................................... 529
Stuck If your vehicle becomes stuck .....752
Sun visors ................................................. 544