TOYOTA PRIUS PRIME 2023 Owners Manual

6119-1. Specifications
9
Vehicle specifications
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 dig-
its)
Speed symbol (alphabet with
one letter)
■Tire dimensionsSection width
Tire height
Wheel diameter Bead
Sidewall
Shoulder
Tread
Belt
Inner liner
Reinforcing rubber
Carcass
Rim lines
Bead wires
Chafer
This information has been pre-
pared in accordance with regu-
lations issued by the National
Highway Traffic Safety Adminis-
tration of the U.S. Department of
Transportation.
It provides the purchasers
and/or prospective purchasers
of Toyota vehicles with informa-
tion on uniform tire quality grad-
A
B
C
D
E
F
G
A
B
C
Tire section names
Uniform Tire Quality
Grading
A
B
C
D
E
F
G
H
I
J
K

6129-1. Specifications
ing.
Your Toyota dealer will help answer
any questions you may have as you
read this information.
■DOT quality grades
All passenger vehicle tires must
conform to Federal Safety
Requirements in addition to
these grades. Quality grades
can be found where applicable
on the tire sidewall between
tread shoulder and maximum
section width.
For example: Treadwear 200 Trac-
tion AA Temperature A
■Treadwear
The treadwear grade is a com-
parative rating based on the
wear rate of the tire when tested
under controlled conditions on a
specified government test
course.
For example, a tire graded 150
would wear one and a half (1 - 1/2)
times as well on the government
course as a tire graded 100.
The relative performance of tires
depends upon the actual conditions
of their use. Performance may dif-
fer significantly from the norm due
to variations in driving habits, ser-
vice practices and differences in
road characteristics and climate.
■Traction AA, A, B, C
The traction grades, from high-
est to lowest, are AA, A, B and
C, and they represent the tire’s
ability to stop on wet pavement
as measured under controlled conditions on specified govern-
ment test surfaces of asphalt
and concrete.
A tire marked C may have poor
traction performance.
Warning: The traction grade
assigned to this tire is based on
braking (straight ahead) traction
tests and does not include corner-
ing (turning) traction.
■Temperature A, B, C
The temperature grades are A
(the highest), B, and C, repre-
senting the tire’s resistance to
the generation of heat and its
ability to dissipate heat when
tested under controlled condi-
tions on a specified indoor labo-
ratory test wheel.
Sustained high temperature can
cause the material of the tire to
degenerate and reduce tire life, and
excessive temperature can lead to
sudden tire failure.
Grade C corresponds to a level of
performance which all passenger
car tires must meet under the Fed-
eral Motor Vehicle Safety Standard
No. 109.
Grades B and A represent higher
levels of performance on the labo-
ratory test wheel than the minimum
required by law.
Warning: The temperature grades
of a tire assume that it is properly
inflated and not overloaded.
Excessive speed, underinflation, or
excessive loading, either sepa-
rately or in combination, can cause
heat buildup and possible tire fail-
ure.

6139-1. 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 seat s, 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 vehicle
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
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

6149-1. Specifications
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 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 luggage load plus 150 lb.
(68 kg) times the vehicle’s designated seating
capacity
Vehicle maximum load on
the tireThe load on an individual tire that is determined
by distributing to each axle 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 (distribut ed 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 laid at alternate angles
substantially less than 90 degrees to the center-
line 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
Tire related termMeaning

6159-1. Specifications
9
Vehicle specifications
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
tubeless tire that contains the inflating medium
within the tire
Innerliner separationThe parting of the innerliner from cord material
in the carcass
Intended outboard side-
wall
(a)The sidewall that contains a whitewall, bears
white 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 part icular side that must
always face outward when mounted on a vehi-
cle
Light truck (LT) tire
A tire designated by its manufacturer as primar-
ily intended for use on lig htweight trucks or mul-
tipurpose 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 inflatio n pressure to which a
tire may be inflated
Tire related termMeaning

6169-1. Specifications
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 ti re, 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
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 correspond-
ing standard tire
Section width
The linear distance between the exteriors of the
sidewalls of an inflated tire, excluding elevations
due to labeling, decoratio n, 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
Tire related termMeaning

6179-1. Specifications
9
Vehicle specifications
*: Table 1  Occupant loading and distributio n for vehicle normal load for
various designated seating capacities
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
Test rim
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
Tread separationPulling away of the tread from the tire carcass
Treadwear indicators
(TWI)The projections within the principal grooves
designed to give a visual indication of the
degrees of wear of the tread
Wheel-holding fixtureThe fixture used to hold the wheel and tire
assembly securely during testing
Designated seating
capacity, Number of occupantsVehicle normal load,
Number of occupantsOccupant distribution in a normally loaded vehi- cle
2 through 422 in front
5 through 1032 in front, 1 in second seat
11 through 155
2 in front, 1 in second
seat, 1 in third seat, 1 in fourth seat
16 through 207
2 in front, 2 in second
seat, 2 in third seat, 1 in fourth seat
Tire related termMeaning

6189-2. Customization
9-2.Customization
■Changing by using the Mul-
timedia Display
Except for Advanced Park
1 Select on the main menu.
2 Select “Vehicle customize”
on the sub menu.
3 Select the item to change the
settings of from the list.
Various setting can be changed.
Refer to the list of settings that can
be changed for details.
For functions that can be turned
on/off, select (ON)/
(OFF).
For Advanced Park (if
equipped)
1 Press the Advanced Park
main switch. 2
Select on the Multimedia
Display, and then select
“Advanced Park”.
■Changing by using the
multi-information display
Use the meter control switches
to change settings. ( P.162)
1 Operate the meter control
switch to select .
( P.166)
2 Operate the meter control
switches to select the desired
item to be customized.
3 According to the display,
select the desired setting.
To go back to the previous screen
or exit the customize mode, press
.
■During customization
Stop the vehicle in a safe place,
apply the parking brake, and shift
the shift position to P. Also, to pre-
vent 12-volt battery discharge, leave
the hybrid system operating while
customizing the features.
Customizable features
Your vehicle includes a vari-
ety of electronic features
that can be personalized to
your preferences. The set-
tings of these features can
be changed by using the
multi-information display,
the Multimedia Display or at
your Toyota dealer.
Some of the customizable
features are changed in
conjunction with the set-
tings of My Set-
tings.( P.234)
Customizing vehicle fea-
tures
WARNING
■During customization
As the hybrid system needs to be
operating during customization,
ensure that the vehicle is parked
in a place with adequate ventila-
tion. In a closed area such as a
garage, exhaust gases including
harmful carbon monoxide (CO)
may collect and enter the vehicle.
This may lead to death or a seri-
ous health hazard.

6199-2. Customization
9
Vehicle specifications
Some function settings are changed simultaneously with other func-
tions being customized. Contact y our Toyota dealer for further
details.
Settings that can be changed using the Multimedia Display
Settings that can be changed using the multi-information display
Settings that can be changed by your Toyota dealer
Definition of symbols: O = Available,  = Not available
■Predictive efficient drive*1 (P.81)
*1: Vehicles with navigation system*2
*2
: This function can only be used in th e mainland U.S.A. It cannot be used
in other states and territorie s, including Alaska and Hawaii.
■Charging system (P.103, 119, 108)
NOTICE
■During customization
To prevent 12-volt battery dis-
charge, ensure that the hybrid
system is operating while custom-
izing features.
Customizable features
FunctionDefault settingCustomized setting
Predictive efficient driveOnOffO
FunctionDefault settingCustomized setting
Charging currentMAX8AO
Connector lockAuto Lock
Auto Lock & Unlock
O
OFF
“Battery Heater”OnOffO
“Battery Cooler”OnOffO
A
B
C
ABC
ABC

6209-2. Customization
■Gauges, meters and multi-information display (P.155, 161)
Function*1Default settingCustomized
setting
Language*2English
Canadian French
OMexican Span- ish
Units*4miles (MPG US,
miles/kWh)km (km/L, km/kWh)
O*3Okm (L/100km, km/kWh)
Hybrid System IndicatorOnOffO
EV indicator*2OnOffO
EV Drive InformationEV Energy remainingEV Distance remainingO
Eco Guidance (ECO Acceler-
ator Guidance)
*2OnOffO
Fuel EconomyTotal AverageTrip AverageOTank Average
Power ConsumptionTotal AverageTrip AverageO
Audio system linked dis-
play
*2OnOffO
Drive information type*2TripTotalO
Drive information items (first
item)
*2Distance
Average Speed
O
Total Time
Drive information items (sec-
ond item)
*2Total Time
Average Speed
O
Distance
Trip Summary*2Drive InfoCharging
ScheduleO
Pop-up display*2OnOffO
CalendarO*5
ABC