PRIUS PRIME_OM_OM47E74U_(U)
7439-1. Specifications
9
Vehicle specifications
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation
pressure
Tire 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
pressureThe 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 avail-
able 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
conditioning and additional weight optional
engine
Maximum loaded
vehicle weight
The sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight
Normal occupant
weight150 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
744
PRIUS PRIME_OM_OM47E74U_(U)
9-1. 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 levelers, roof rack, heavy
duty 12-volt 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 designationRim diameter and width
Rim type designationThe industry manufacturer’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 l uggage 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 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
Tire related termMeaning
PRIUS PRIME_OM_OM47E74U_(U)
7459-1. Specifications
9
Vehicle specifications
Bead separationA 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
CarcassThe tire structure, except tread and sidewall
rubber which, when inflated, bears the load
ChunkingThe breaking away of pieces of the tread or
sidewall
CordThe strands forming the plies in the tire
Cord separationThe parting of cords from adjacent rubber
compounds
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 corre-
sponding standard tire
GrooveThe space between two adjacent tread ribs
Innerliner
The layer(s) forming the inside surface of a
tubeless tire that contains the inflating medium
within the tire
Innerliner separationThe parting of the innerliner from cord material
in the carcass
Tire related termMeaning
746
PRIUS PRIME_OM_OM47E74U_(U)
9-1. Specifications
Intended outboard
sidewall
(a) The sidewall that contains a whitewall,bears white lettering, or bears manufac-
turer, 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 asym-
metrical 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 pri-
marily intended for use on lightweight trucks
or multipurpose 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 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 of an inflated new tire
Overall width
The linear distance between the exteriors of
the sidewalls of an inflated tire, including ele-
vations due to labeling, decorations, or protec-
tive bands or ribs
Passenger car tire
A tire intended for use on passenger cars,
multipurpose 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 adja-
cent plies
Tire related termMeaning
PRIUS PRIME_OM_OM47E74U_(U)
7479-1. Specifications
9
Vehicle specifications
Pneumatic tire
A mechanical device made of rubber, chemi-
cals, fabric and steel or other materials, that,
when mounted on an automotive wheel, pro-
vides the traction and contains 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 corre-
sponding standard tire
Section width
The linear distance between the exteriors of
the sidewalls of an inflated tire, excluding ele-
vations due to labeling, decoration, or protec-
tive 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 Driving 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
761
PRIUS PRIME_OM_OM47E74U_(U)
9-3. Initialization
9
Vehicle specifications
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 pe rformed on the vehicle.
ItemWhen to initializeReference
Power window• When functioning abnormallyP. 310
Parking Support
Brake function (if
equipped)• After reconnecting or changing
the 12-volt batteryP. 458
S-APGS (Simple
Advanced Parking
Guidance System) (if
equipped)
• After reconnecting or changingthe 12-volt batteryP. 486
Message indicating
maintenance is
required (U.S.A. only)• After the maintenance is per-formedP. 586
Tire pressure warn-
ing system
• When rotating the tires on vehi-cles with differing front and rear
tire inflation pressures
• When changing the tire inflation pressure by changing traveling
speed or load weight, etc.
P. 6 1 3
783What to do if... (Troubleshooting)
PRIUS PRIME_OM_OM47E74U_(U)
●Stop the vehicle in a safe place and repair the flat tire temporarily with
the emergency tire puncture repair kit. ( P. 689)
●Try the procedure for when the vehicle becomes stuck in mud, di rt, or
snow. ( P. 723)
When a problem has occurred
If you have a flat tire
The vehicle becomes stuck
788Alphabetical index
PRIUS PRIME_OM_OM47E74U_(U)
Drive information ..................... 222
Drive-Start Control (DSC) ....... 315Sudden start restraint control................................. 315
Driver’s seat belt reminder
light......................................... 674
Driving ...................................... 314 Break-in tips .......................... 317
Correct driving posture ........... 28
Driving in the rain .................. 316
Driving mode select switch ... 425
Plug-in hybrid vehicle driving
tips ...................................... 106
Procedures ........................... 314
DSC (Drive-Start Control) ....... 315 Sudden start restraint control................................. 315
Winter drive tips .................... 502
Dynamic radar cruise control with full-speed range ............ 409
ECB (Electronically Controlled Brake System) .... 496
Eco drive mode ........................ 425
EDR (Event data recorder) ........ 11
Electric motor (traction motor) ....................................... 86 Location .................................. 86
Specification ......................... 729
Electric Power Steering (EPS)....................................... 497 Function ................................ 497
Warning light ......................... 672
Electronic key .......................... 274 Battery-saving function ......... 292
If the electronic key does
not operate properly ........... 708
Replacing the battery ............ 644 Electronically Controlled
Brake System (ECB) ............. 496
Emergency, in case of If a warning buzzer sounds... 671
If a warning light turns on ..... 671
If a warning message is displayed ............................ 681
If the 12-volt battery is
discharged.......................... 712
If the electronic key does not operate properly ................. 708
If the hybrid system will not start .................................... 706
If the vehicle becomes
stuck ................................... 723
If the vehicle is submerged or water on the road
is rising ............................... 662
If you have a flat tire ............. 689
If you lose your keys ..... 275, 278
If you think something is wrong .............................. 670
If your vehicle has to be
stopped in an emergency ... 661
If your vehicle needs to be towed.................................. 664
If your vehicle overheats....... 718
Emergency flashers ................ 660
Emergency tire puncture repair kit ................................. 689
Energy monitor ........ 223, 261, 266
E