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393
4-3. Do-it-yourself maintenance
4
Maintenance and care
■When replacing wheels (vehicles with a tire pressure warning sys-
tem)
The wheels of your Toyota are equipped with tire pressure warning
valves and transmitters that allow the tire pressure warning system to
provide advanced warning in the event of a loss in tire inflation pressure.
Whenever wheels are replaced, the tire pressure warning valves and
transmitters must be installed. (
P. 383)
CAUTION
■When replacing wheels
●Do not use wheels that are a different size from those recommended in
the Owner’s Manual, as this may re sult in 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 serious
injury or death.
■When installing the wheel nuts
●Never use oil or grease on the wheel bolts or wheel nuts.
Oil and grease may cause the wheel nuts to be excessively tightened,
leading to bolt or disc wheel damage. In addition, the oil or grease can
cause the wheel nuts to loosen and the wheel may fall off, causing an
accident and resulting in death or serious injury. Remove any oil or
grease from the wheel bolts or wheel nuts.
●Be sure to install the wheel nuts with
the tapered ends facing inward.
Installing the nuts with the tapered
ends facing outward can cause the
wheel to break and eventually cause
the wheel to come off while driving,
which could lead to an accident
resulting in death or serious injury.Tapered
portion
Page 494 of 544
494 6-1. Specifications
Tires and wheelsType A
*1: Steel wheels
*
2: Aluminum wheels
Type B
Tire size 215/70R16 99H, 225/65R17 101H,
235/55R18 99H
Tire inflation pressure
(Recommended cold tire
inflation pressure)Front: 32 psi (220 kPa, 2.2 kgf/cm2 or bar)
Rear: 32 psi (220 kPa, 2.2 kgf/cm2 or bar)
Spare: 32 psi (220 kPa, 2.2 kgf/cm2 or bar)
Wheel size 16
6 1/2 J, 17 6 1/2 J*1, 17 7J*2, 18 7
1/2 J
Wheel nut torque 76 ft•lbf (103 N•m, 10.5 kgf•m)
Tire size P235/55R18 99H
Tire inflation pressure
(Recommended cold tire
inflation pressure) Front: 32 psi (220 kPa, 2.2 kgf/cm2 or bar)
Rear: 32 psi (220 kPa, 2.2 kgf/cm2 or bar)
Wheel size 18 7 1/2 J
Wheel nut torque 76 ft•lbf (103 N•m, 10.5 kgf•m)
Page 501 of 544
501
6-1. Specifications
6
Vehicle specifications
Tire size
■ 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 dimensions
Section width
Tire height
Wheel diameter
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505
6-1. Specifications
6
Vehicle specifications
Tire related termMeaning
Normal occupant
weight 150 lb. (68 kg) times the number of occupants
specified in the second column of Table 1
* that
follows
Occupant distribution Distribution of occupants in a vehicle as speci-
fied in the third column of Table 1
* below
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 levelers, roof rack, heavy duty
battery, and special trim
Rim A 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 designation Rim diameter and width
Rim type designation The industry manufacturer's designation for a
rim by style or code
Rim width Nominal 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 tire The 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 occu-
pant weight (distributed in accordance with
Ta b l e 1
* below), and dividing by two