2023 TOYOTA BZ4X width

5599-1. Specifications
Owners Manual_USA_M42C01_en
9
Vehicle specifications
tion on uniform tire quality grad-
ing.
Your Toyota dealer will help answer
any questions you may have as you
read this information.
■DOT quality grades
All passenger vehicle tires must
conform 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 Trac-
tion AA Temperature A
■Treadwear
The treadwear grade is a com-
parative rating 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 perfo rmance 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.
■Traction AA, A, B, C
The traction grades, from high-
est to lowest, are AA, A, B and
C, and they represent the tire’s
ability to stop on wet pavement as measured under controlled
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 corner-
ing (turning) traction.
■Temperature A, B, C
The temperature grades are A
(the highest), B, and C, repre-
senting 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 labo-
ratory 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
performance which all passenger
car tires must meet under the Fed-
eral Motor Vehicle Safety Standard
No. 109.
Grades B and A represent higher
levels of performance on the labo-
ratory test wheel than the minimum
required by law.
Warning: The temperature grades
of a tire assume tha t it is properly
inflated and not overloaded.
Excessive speed, underinflation, or
excessive loading, either sepa-
rately or in combination, can cause

5619-1. Specifications
Owners Manual_USA_M42C01_en
9
Vehicle specifications
Production options weight
The combined weight of installed regular pro-
duction 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 leveler s, roof rack, heavy duty
battery, and special trim
RimA metal support for a ti re or a tire and tube
assembly upon which the tire beads are seated
Rim diameter
(Wheel diameter)Nominal diameter o f the bead seat
Rim size designationRim diameter and width
Rim type designationThe industry manufacture r’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 vehicl e’s designated seating
capacity
Vehicle maximum load on
the tireThe load on an individual tire that is determined
by distributing to each ax le its share of the max-
imum 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 (distributed 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 la id at alternate angles
substantially less than 9 0 degrees to the center-
line of the tread
Tire related termMeaning

5639-1. Specifications
Owners Manual_USA_M42C01_en
9
Vehicle specifications
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 per-
missible 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
dimension requirements
Open spliceAny parting at any junction of tread, sidewall, or
innerliner that extends to cord material
Outer diameterThe overall diameter o f an inflated new tire
Overall width
The linear distance between the exteriors of the
sidewalls of an inflated ti re, including elevations
due to labeling, decorations, or protective bands
or ribs
Passenger car tire
A tire intended for use on passenger cars, multi-
purpose passenger vehicles, and trucks, that
have a gross vehicle weight rating (GVWR) of
10,000 lb. or less.
PlyA layer of rubber-coated parallel cords
Ply separationA parting of rubber compound between adjacent
plies
Pneumatic tire
A mechanical device made of rubber, chemi-
cals, fabric and steel or other materials, that,
when mounted on an aut omotive wheel, pro-
vides the traction and co ntains 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 correspond-
ing standard tire
Section width
The linear distance between the exteriors of the
sidewalls of an inflated tire, excluding elevations
due to labeling, decoratio n, or protective bands
Tire related termMeaning