3918-1. Specifications
8
Vehicle specifications
Type A
*1: 99 mph (160 km/h) or less
*2: More than 99 mph (160 km/h)
Type B
*1: 99 mph (160 km/h) or less
*2: More than 99 mph (160 km/h)
Tires and wheels
Tire size215/55R17 94V, T155/70D17 110M
Tire inflation pressure
(Recommended cold tire inflation pressure)
Front
36 psi (250 kPa, 2.5 kgf/cm
2 or bar)*1
46 psi (320 kPa, 3.2 kgf/cm2 or bar)*2
Rear
36 psi (250 kPa, 2.5 kgf/cm
2 or bar)*1
46 psi (320 kPa, 3.2 kgf/cm2 or bar)*2
Spare
60 psi (420 kPa, 4.2 kgf/cm
2 or bar)
Wheel size17 x 7 1/2J, 17 x 4T (compact spare)
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)
Tire size235/45R18 94V, T155/70D17 110M
Tire inflation pressure
(Recommended cold tire inflation pressure)
Front
35 psi (240 kPa, 2.4 kgf/cm
2 or bar)*1
46 psi (320 kPa, 3.2 kgf/cm2 or bar)*2
Rear
35 psi (240 kPa, 2.4 kgf/cm
2 or bar)*1
46 psi (320 kPa, 3.2 kgf/cm2 or bar)*2
Spare
60 psi (420 kPa, 4.2 kgf/cm
2 or bar)
Wheel size18 x 8J, 17 x 4T (compact spare)
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)
3928-1. Specifications
Type C
*1: 137 mph (220 km/h) or less
*2: More than 137 mph (220 km/h)
Tire size235/40R19 92V, T155/70D17 110M
Tire inflation pressure
(Recommended cold tire inflation pressure)
Front
35 psi (240 kPa, 2.4 kgf/cm
2 or bar)*1
46 psi (320 kPa, 3.2 kgf/cm2 or bar)*2
Rear
35 psi (240 kPa, 2.4 kgf/cm
2 or bar)*1
46 psi (320 kPa, 3.2 kgf/cm2 or bar)*2
Spare
60 psi (420 kPa, 4.2 kgf/cm
2 or bar)
Wheel size19 x 8J, 17 x 4T (compact spare)
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)
Light bulbs
Light bulbsBulb No.WType
Front turn signal lights (single-beam
headlights)7444NA28/8Wedge base
bulbs (amber)
Front side marker lights (single-beam
headlights)W5W5Wedge base bulbs (clear)
3978-1. Specifications
8
Vehicle specifications
Type ADOT 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 cert ifies that the tire
conforms to applicable Federal Motor
Vehicle Safety Standards.
Type B
DOT symbol
*
Tire Identification Number (TIN) Tire manufacturer’s identification
mark
Manufacturer’s code
Manufacturing week
Manufacturing year
*: The DOT symbol certifies that the tire
conforms to applicable Federal Motor
Vehicle Safety Standards.
■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)
Typical DOT and Tire Identifica-
tion Number (TIN)
A
B
C
D
E
F
G
A
B
Tire size
C
D
E
F
A
B
C
D
E
F
G
3988-1. Specifications
■Tire dimensionsSection width
Tire height
Wheel diameter
Bead
Sidewall
Shoulder
Tread
Belt
Inner liner
Reinforcing rubber
Carcass
Rim lines
Bead wires
Chafer This information has been prepared in
accordance with regulations issued by
the National Highway Traffic Safety
Administration of the U.S. Department
of Transportation.
It provides the purchasers and/or pro-
spective 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
information.
■DOT quality grades
All passenger vehicle tires must con-
form to Federal Safety Requirements in
addition to these grades. Quality
grades can be found where applicable
on the tire sidewall between tread
shoulder and maximum section width.
For example: Treadwear 200 Traction AA
Temperature A
■Treadwear
The treadwear grade is a comparative
rating based on the wear rate of the tire
when tested under controlled condi-
tions 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 variatio ns in driving habits,
service practices and differences in road
characteristics and climate.
Tire section names
A
B
C
A
B
C
D
E
F
G
H
I
J
K
Uniform Tire Quality Grading
3998-1. Specifications
8
Vehicle specifications
■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 con-
trolled conditions on specified govern-
ment 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) traction.
■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 condi-
tions 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 sudd
en tire failure.
Grade C corresponds to a level of perfor-
mance which all passenger car tires must
meet under the Fede ral 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, unde rinflation, or exces-
sive loading, either separately or in combi-
nation, can cause heat buildup and
possible tire failure.
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
pressureThe 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 manufacturer
Accessory weight
The combined weight (in excess of those standard items which may
be replaced) of automatic tran smission, power steering, power
brakes, power windows, 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 equipment, including the
maximum capacity of fuel, oil and coolant, and if so equipped, air
conditioning and additional weight optional engine
4008-1. Specifications
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 specified in the sec-
ond column of Table 1
* that follows
Occupant distribu-
tionDistribution of occupants in a vehicl e as specified in the third column
of Table 1
* below
Production options
weight
The combined weight of installed regular production options weigh-
ing 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 designa-
tionThe 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 divid-
ing 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 (distributed in accordance with Table 1
* below), and
dividing by two
Weather sideThe surface area of the rim not covered by the inflated tire
Tire related termMeaning
4028-1. Specifications
Maximum load rat-
ingThe load rating for a tire at the maximum permissible inflation pres-
sure for that tire
Maximum permissi-
ble inflation pres-
sure
The 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 sidewalls of an
inflated tire, including elevations du e to labeling, decorations, or pro-
tective bands or ribs
Passenger car tire
A tire intended for use on passenger cars, multipurpose passenger
vehicles, and trucks, that have a gr oss vehicle weight rating (GVWR)
of 10,000 lb. or less.
PlyA layer of rubber-c oated 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, pro-
vides the traction and contains the gas or fluid that sustains the load
Radial ply tireA pneumatic tire in which the ply cords that extend to the beads are
laid at substantially 90 degree s to the centerline of the tread
Reinforced tireA tire designed to operate at high er loads and at higher inflation
pressures than the corre sponding standard tire
Section width
The linear distance between the exteriors of the sidewalls of an
inflated tire, excluding elevations due to labeling, decoration, or pro-
tective 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
Tire related termMeaning
4038-1. Specifications
8
Vehicle specifications
*:Table 1 Occupant loading and distribution for vehicle normal load for various desig-
nated seating capacities
Snow tire
A tire that attains a traction index equal to or greater than 110, com-
pared 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
Test rimThe rim on which a tire is fitted fo r testing, and may be any rim listed
as appropriate for use with that tire
TreadThat portion of a tire that comes into contact with the road
Tread ribA tread section running circumferentially around a tire
Tread separationPulling away of the tread from the tire carcass
Treadwear indica-
tors (TWI)The projections within th e principal grooves designed to give a visual
indication of the degree s of wear of the tread
Wheel-holding fix-
tureThe fixture used to hold the wheel and tire assembly securely during
testing
Designated seating capacity,
Number of occupantsVehicle normal load, Num- ber of occupantsOccupant distribution in a normally loaded vehicle
2 through 422 in front
5 through 1032 in front, 1 in second seat
11 through 1552 in front, 1 in second seat, 1 in
third seat, 1 in fourth seat
16 through 2072 in front, 2 in second seat, 2 in third seat, 1 in fourth seat
Tire related termMeaning