2023 TOYOTA BZ4X tire size

4937-3. Do-it-yourself maintenance
Owners Manual_USA_M42C01_en
7
Maintenance and care
When replacing wheels, care
should be taken to ensure that
they are equivalent to those
removed in load capacity, diam-
eter, rim width and inset
*.
Replacement wheels are avail-
able at your Toyota dealer.
*: Conventionally referred to as off- set.
Toyota does not recommend
using the following:
 Wheels of different sizes or
types
 Used wheels
 Bent wheels that have been
straightened
■When replacing wheels
The wheels of your vehicle are
equipped with tire pressure warning
valves and transmitters that allow
the tire pressure warning system to
provide advance warning in the
event of a loss in tire inflation pres-
sure. Whenever wheels are
replaced, tire pressure warning
valves and transmitters must be
installed. ( P.476)
Wheels
If a wheel is bent, cracked
or heavily corroded, it
should be replaced. Other-
wise, the tire may separate
from the wheel or cause a
loss of handling control.
Wheel selection
WARNING
■When replacing wheels
●Do not use wheels that are a dif-
ferent size from those recom-
mended in the Owner’s Manual,
as this may result in a loss of
handling control.
●Never use an inner tube in a
leaking wheel which is designed
for a tubeless tire. Doing so may
result in an accident, causing
death or serious injury.
■Wheel bolts
Observe the following precautions
to reduce the risk of death or seri-
ous injury:
●Do not over tighten.
●Never use oil or grease on the
wheel bolts. Oil and grease may
cause the wheel bolts to be
excessively tightened, leading
to bolt or disc wheel damage. In
addition, the oil or grease can
cause the wheel bolts to loosen
and the wheel may fall off, caus-
ing a serious accident. Remove
any oil or grease from the wheel
bolts.
●If there are any cracks or defor-
mations in the wheel bolts, or if
the surface treatment becomes
worn, have the wheel bolts
replaced at your Toyota dealer.
Failure to follow these precau-
tions could cause the wheel
bolts to loosen and the tire to fall
off, resulting in death or serious
injury.
■Use of defective wheels pro-
hibited
Do not use cracke d or deformed
wheels.
Doing so could cause the tire to
leak air during driving, possibly
causing an accident.

5208-2. Steps to take in an emergency
Owners Manual_USA_M42C01_encome on due to natural causes such
as natural air leaks and tire inflation
pressure changes caused by tem-
perature. In this case, adjusting the
tire inflation pressure will turn off the
warning light (after a few minutes).
■Conditions that the tire pres-
sure warning system may not
function properly
 P. 4 7 4
WARNING
■If both the ABS and the brake
system warning lights remain
on
Stop your vehicle in a safe place
immediately and contact your Toy-
ota dealer.
The vehicle will become
extremely unstable during brak-
ing, and the ABS system may fail,
which could cause an accident
resulting in death or serious injury.
■When the electric power
steering system warning light
comes on
When the light comes on yellow,
the assist to the power steering is
restricted. When the light comes
on red, the assist to the power
steering is lost and handling oper-
ations of the steering wheel
become extremely heavy.
When steering wheel operations
are heavier than usual, grip the
steering wheel firmly and operate
it using more force than usual.
■If the tire pressure warning
light comes on
Be sure to observe the following
precautions.
Failure to do so could cause a
loss of vehicle control and result
in death or serious injury.
●Stop your vehicle in a safe place
as soon as possible. Adjust the
tire inflation pressure immedi-
ately.
●If the tire pressure warning light
comes on even after tire infla-
tion pressure adjustment, it is
probable that you have a flat
tire. Check the tires. If a tire is
flat, repair the flat tire by using
emergency tire puncture repair
kit.
●Avoid abrupt maneuvering and
braking.
If the vehicle tires deteriorate,
you could lose control of the
steering wheel or the brakes.
■If a blowout or sudden air
leakage should occur
The tire pressure warning system
may not activate immediately.
■Maintenance of the tires
Each tire, includi ng the spare (if
provided), should be checked
monthly when cold and inflated to
the inflation pressure recom-
mended by the vehicle manufac-
turer 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 infor-
mation label], you should deter-
mine the proper tire inflation
pressure for those tires.)

5298-2. Steps to take in an emergency
Owners Manual_USA_M42C01_en
8
When trouble arises
■Bottle Sticker
■Compressor
Air pressure gauge
Compressor switch
Power plug
Hose
Air release cap
■Emergency tire puncture repair
kit
●The sealant stored in the emer-
gency tire puncture repair kit can
be used only once to temporarily
repair a single tire. If the sealant in
the bottle and other parts of the kit
have been used and need to be
replaced, contact your Toyota
dealer.
●The compressor can be used
repeatedly.
●The sealant can be used when the
outside temperature is from -40°F
(-40°C) to 140°F (60°C).
●The kit is exclusi vely designed for
size and type of ti res originally
installed on your vehicle. Do not
use it for tires tha t a different size
than the original ones, or for any
other purposes.
●If the sealant gets on your clothes,
it may stain.
●If the sealant adhe res to a wheel
or the surface of the vehicle body,
the stain may not be removable if
it is not cleaned at once. Immedi-
ately wipe away the sealant with a
wet cloth.
●During operation of the repair kit,
a loud operation noise is pro-
duced. This does not indicate a
malfunction.
●Do not use to check or to adjust
the tire pressure.
■Note for checking the emer-
gency tire puncture repair kit
●Check the sealant expiry date
occasionally. The expiry date is
shown on the bottle.
●Do not use sealant whose expiry
date has already passed. Other-
wise, repairs conducted using the
emergency tire puncture repair kit
may not be performed properly.
●The sealant has a limited life
span. The expiry date is marked
on the bottle. The sealant should
Emergency tire puncture
repair kit components

5308-2. Steps to take in an emergency
Owners Manual_USA_M42C01_enbe replaced before the expiry
date. Contact your Toyota dealer
for replacement.
1
Open the deck board.
2 Remove the cover.
3 Take out the emergency tire
puncture repair kit.
1 Compressor
2 Bottle
WARNING
■If you have a flat tire
Driving even a short distance with
a flat tire can damage the tire and
the wheel beyond repair.
Driving with a flat tire may cause a
circumferential groove on the side
wall. In such a case, the tire may
explode when using a repair kit.
■Caution while driving
●Store the repair kit in the lug-
gage compartment. Injuries may
result in the event of an acci-
dent or sudden braking.
●The repair kit is exclusively only
for your vehicle. Do not use
repair kit on other vehicles,
which could lead to an accident
causing death or serious injury.
●Do not use repair kit for tires
that are different size than the
original ones, or for any other
purpose. If the tires have not
been completely repaired, it
could lead to an accident caus-
ing death or serious injury.
■Precautions for use of the
sealant
●Ingesting the sealant is hazard-
ous to your health. If you ingest
sealant, consume as much
water as possible, then immedi-
ately consult a doctor.
●If sealant gets in eyes or
adheres to skin, immediately
wash it off with water. If discom-
fort persists, consult a doctor.
Taking out the emer-
gency tire puncture repair
kit

5559-1. Specifications
Owners Manual_USA_M42C01_en
9
Vehicle specifications
*2: Make sure to confirm that the brake system warning light (yell ow) does
not illuminate. (If th e brake system warning light illuminates, refer to
P.513)
Vehicles with 18-inch wheels
Vehicles with 20-inch wheels
Steering
Free playLess than 1.2 in. (30 mm)
Tires and wheels
Tire size235/60R18 103V
Tire inflation pressure
(Recommended cold tire infla-
tion pressure)
Front:
38 psi (260 kPa, 2.6 kgf/cm
2 or bar)
Rear:
38 psi (260 kPa, 2.6 kgf/cm
2 or bar)
Wheel size18 x 7 1/2J
Wheel bolt torque103 ft•lbf (140 N•m, 14.3 kgf•m)
Tire size235/50R20 100V
Tire inflation pressure
(Recommended cold tire infla-
tion pressure)
Front:
38 psi (260 kPa, 2.6 kgf/cm
2 or bar)
Rear:
38 psi (260 kPa, 2.6 kgf/cm
2 or bar)
Wheel size20 x 7 1/2J
Wheel bolt torque103 ft•lbf (140 N•m, 14.3 kgf•m)

5569-1. Specifications
Owners Manual_USA_M42C01_en
Location of treadwear indicators (P.472)
Load limit at maximum cold tire inflation pressure (P.560)
Maximum cold tire inflation pressure ( P.560)
This means the pressure to w hich a tire may be inflated.
Tire size (P.557)
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 t he tire and the tube maintains the air pres-
sure.
Radial tires or bias-ply tires
A radial tire has “RADIAL” on the sidewall. A tire not marked “ RADIAL” is a
bias-ply tire.
Summer tires or all season tires ( P.472)
An all season tire has “M+S” on the sidewal l. A tire not marked “M+S” is a
summer tire.
Tire ply composition and materials
Plies are layers of rubber-coat ed parallel cords. Cords are the strands
which form the pl ies in a tire.
DOT and Tire Identification Number (TIN) ( P.557)
Tire information
Typical tire symbols

5579-1. Specifications
Owners Manual_USA_M42C01_en
9
Vehicle specifications
Uniform tire quality grading
For details, see “Uniform Tire Quality Grading” that follows.
Ty p e A
DOT symbol
*
Tire Identification Number
(TIN)
Tire manufacturer’s identifi-
cation mark
Tire size code
Manufacturer’s optional tire
type code (3 or 4 letters)
Manufacturing week
Manufacturing year
*: The DOT symbol certifies that the tire conforms to applicable Fed-
eral Motor Vehicle Safety Stan-
dards.
Type B
DOT symbol
*
Tire Identification Number
(TIN)
Tire manufacturer’s identifi-
cation mark
Manufacturer’s code
Manufacturing week
Manufacturing year
*: The DOT symbol ce rtifies that the
tire conforms to applicable Fed-
eral Motor Vehicle Safety Stan-
dards.
■Typical tire size information
The illustration indicates typical
tire size.
Typical DOT and Tire
Identification Number
(TIN)
Tire size

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