Page 518 of 607

5168-2. Steps to take in an emergency
PRIUS v_OM_OM47B78U_(U)
■The compact spare tire
●The compact spare tire is identified by the label “TEMPORARY USE
ONLY” on the tire sidewall.
Use the compact spare tire temporarily, and only in an emergency.
●Make sure to check the tire inflation pressure of the compact spare tire.
( P. 543)
■After completing the tire change
The tire pressure warning system must be reset. ( P. 432)
■When using the compact spare tire
As the compact spare tire is not equipped with a tire pressure warning
valve and transmitter, low inflation pressure of the spare tire will not be
indicated by the tire pressure warning system. Also, if you replace the
compact spare tire after the tire pressure warning light comes on, the light
remains on.
■When the compact spare tire is equipped
The vehicle becomes lower when driving with the compact spare tire
compared to when driving with standard tires.
■If you have a flat front tire on a road covered with snow or ice
Install the compact spare tire on one of the rear wheels of the vehicle.
Perform the following steps and fit tire chains to the front tires:
Replace a rear tire with the compact spare tire.
Replace the flat front tire with the tire removed from the rear of the vehi-
cle.
Fit tire chains to the front tires.
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2
3
Page 545 of 607
PRIUS v_OM_OM47B78U_(U)
5439-1. Specifications
9
Vehicle specifications
Type A
Type B
Compact spare tire
Tires and wheels
Tire sizeP205/60R16 91V
Tire inflation pressure
(Recommended cold tire
inflation pressure)
36 psi (250 kPa, 2.5 kgf/cm2 or bar)
Wheel size16 6 1/2J
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)
Tire sizeP215/50R17 90W
Tire inflation pressure
(Recommended cold tire
inflation pressure)Front tire
33 psi (230 kPa, 2.3 kgf/cm
2 or bar)
Rear tire
32 psi (220 kPa, 2.2 kgf/cm
2 or bar)
Wheel size17 7J
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)
Tire sizeT145/70D17 106M
Tire inflation pressure
(Recommended cold tire
inflation pressure)
60 psi (420 kPa, 4.2 kgf/cm2 or bar)
Wheel size17 4T
Wheel nut torque76 ft•lbf (103 N•m, 10.5 kgf•m)
Page 551 of 607

PRIUS v_OM_OM47B78U_(U)
5499-1. Specifications
9
Vehicle specifications
Tire size( P. 550)
DOT and Tire Identification Number (TIN) ( P. 550)
Location of treadwear indicators ( P. 431)
Tire ply composition and materials
Plies are layers of rubber-coated parallel cords. Cords are the strands
which form the plies in a tire.
Summer tires or all season tires ( P. 435)
An all season tire has “M+S” on the sidewall. A tire not marked “M+S”
is a summer tire.
Radial tires or bias-ply tires
A radial tire has “RADIAL” on the sidewall. A tire not marked “RADIAL”
is a bias-ply tire.
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 the tire and the tube maintains the air
pressure.
Load limit at maximum cold tire inflation pressure ( P. 434)
Maximum cold tire inflation pressure ( P. 543)
This means the pressure to which a tire may be inflated.
Uniform tire quality grading
For details, see “Uniform Tire Quality Grading” that follows.
“TEMPORARY USE ONLY”
A compact spare tire is identified by the phrase “TEMPORARY USE
ONLY” molded on its sidewall. This tire is designed for temporary
emergency use only.
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2
3
4
5
6
7
8
9
10
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Page 555 of 607

PRIUS v_OM_OM47B78U_(U)
5539-1. Specifications
9
Vehicle specifications
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pres-
sureTire 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
manufacturer
Accessory weight
The combined weight (in excess of those stan-
dard items which may be replaced) of hybrid
transmission, 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 con-
ditioning and additional weight optional engine
Maximum loaded vehi-
cle weight
The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant weight
150 lb. (68 kg) times the number of occupants
specified in the second column of Table 1
* that
follows
Occupant distributionDistribution of occupants in a vehicle as speci-
fied in the third column of Table 1
* below
Page 557 of 607

PRIUS v_OM_OM47B78U_(U)
5559-1. Specifications
9
Vehicle specifications
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 center-
line of the tread
CarcassThe tire structure, except tread and sidewall rub-
ber which, when inflated, bears the load
ChunkingThe breaking away of pieces of the tread or side-
wall
CordThe strands forming the plies in the tire
Cord separationThe parting of cords from adjacent rubber com-
pounds
CrackingAny parting within the tread, sidewall, or inner-
liner 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 correspond-
ing standard tire
GrooveThe space between two adjacent tread ribs
Innerliner
The layer(s) forming the inside surface of a tube-
less tire that contains the inflating medium within
the tire
Innerliner separationThe parting of the innerliner from cord material in
the carcass
Tire related termMeaning
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556
PRIUS v_OM_OM47B78U_(U)
9-1. Specifications
Intended outboard side-
wall
(a) The sidewall that contains a whitewall, bearswhite 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 an asymmetri- cal tire that has a particular side that must
always face outward when mounted on a
vehicle
Light truck (LT) tire
A tire designated by its manufacturer as primarily
intended for use on lightweight trucks or multi-
purpose 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 permis-
sible 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 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, 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
Tire related termMeaning
Page 559 of 607

PRIUS v_OM_OM47B78U_(U)
5579-1. Specifications
9
Vehicle specifications
Pneumatic tire
A mechanical device made of rubber, chemicals,
fabric and steel or other materials, that, when
mounted on an automotive wheel, provides the
traction and contains the gas or fluid that sus-
tains 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, 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
Snow tire
A tire that attains a traction index equal to or
greater than 110, compared 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 Dri-
ving Traction in a Straight Line on Snow-and Ice-
Covered Surfaces, and which is marked with an
Alpine Symbol (
) on at least one sidewall
Te s t r i m
The rim on which a tire is fitted for 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
Tire related termMeaning
Page 569 of 607
567
PRIUS v_OM_OM47B78U_(U)
9-3. Initialization
9
Vehicle specifications
Item to initialize
The following Item must be initialized for normal system opera-
tion after such cases as the 12-volt battery being reconnected,
or maintenance being performed on the vehicle.
ItemWhen to initializeReference
Tire pressure warn-
ing system
• When rotating the tires on vehi-cles with differing front and rear
tire inflation pressures
• When changing the tire size
P. 4 3 2