Page 503 of 552

5039-1. Specifications
9
Vehicle specifications
PRIUS c_U (OM52E68U)
Tire size( P. 505)
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.
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. 401)
An all season tire has “M+S” on the sidewall. A tire not marked “M+S”
is a summer tire.
Location of treadwear indicators ( P. 398)
DOT and Tire Identification Number (TIN) ( P. 504)
Tire ply composition and materials
Plies are layers of rubber-coated parallel cords. Cords are the strands
which form the plies in a tire.
Load limit at maximum cold tire inflation pressure ( P. 509)
Maximum cold tire inflation pressure ( P. 509)
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” ( P. 470)
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.
1
2
3
4
5
6
7
8
9
10
11
Page 504 of 552
5049-1. Specifications
PRIUS c_U (OM52E68U)
DOT symbol*
Tire Identification Number (TIN)
Tire manufacturer's identifica-
tion 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 FederalMotor Vehicle Safety Standards.
Typical DOT and Tire Identification Number (TIN)
1
2
3
4
5
6
7
Page 505 of 552
5059-1. Specifications
9
Vehicle specifications
PRIUS c_U (OM52E68U)■
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 dimensionsSection width
Tire height
Wheel diameter
Tire size
1
2
3
4
5
6
7
1
2
3
Page 510 of 552

5109-1. Specifications
PRIUS c_U (OM52E68U)
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 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 vehicle's designated seating
capacity
Vehicle maximum load
on the tire The load on an individual tire that is deter-
mined 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 deter-
mined 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 side The 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 separation A breakdown of the bond between compo-
nents 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 centerline of the tread
Carcass The tire structure, except tread and sidewall
rubber which, when inflated, bears the load
Chunking The breaking away of pieces of the tread or
sidewall
Cord The strands forming the plies in the tire
Tire related termMeaning
Page 519 of 552
5199-2. Customization
9
Vehicle specifications
PRIUS c_U (OM52E68U)
Items to initialize
The following items 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
Message indicating
maintenance is required
(except Canada)
After the maintenance is performedP. 373
Tire pressure warning
system
• When rotating the tires on vehi-cles with differing front and rear
tire inflation pressures
• When changing tire pressure
(such as when changing travel-
ing speed, load weight, etc.)
• When changing the tire size
P. 399
Page 550 of 552

550Alphabetical index
PRIUS c_U (OM52E68U)
Tail lightsReplacing light bulbs............. 427
Switch ................................... 201
Theft deterrent system Immobilizer system ................. 82
Theft prevention labels ........... 84
Theft prevention labels ............. 84
Tire inflation pressure............. 406
Tire information Glossary................................ 509
Size ....................................... 505
Tire identification number ..... 504
Uniform tire quality grading ............................... 507
Tires Chains................................... 242
Checking ............................... 398
If you have a flat tire ............. 462
Inflation pressure .................. 497
Inflation pressure sensor ...... 399
Information ............................ 502
Replacing .............................. 462
Rotating tires......................... 398
Size ....................................... 497
Snow tires ............................. 243
Spare tire .............................. 462
Tire pressure warning system ........................ 398, 444
Tools ......................................... 462
Total load capacity .................. 179
Towing Dinghy towing ....................... 181
Emergency towing ................ 433
Trailer towing ........................ 180 TRAC ........................................ 232
Traction control ....................... 232
Transmission
Hybrid transmission .............. 196
If the shift lever cannot be shifted from P ................ 475
Trip information ......................... 94
Trip meter ................................... 91
Turn signal lights Replacing light bulbs ............ 420
Switch ................................... 199
Wattage ................................ 498
USB memory.................... 250, 277
Vanity mirrors .......................... 357
Vehicle data recordings .............. 9
Vehicle identification number................................... 491
Vehicle Proximity Notification System ................................... 72
Vehicle stability control .......... 232
VSC ........................................... 232
VSC OFF switch....................... 233
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