wheel TOYOTA PRIUS 2010 3.G Owners Manual

578 6-1. Specifications
PRIUS_U (OM47668U) U.S.A.■
Traction AA, A, B, C
The traction grades, from highest to lowest, are AA, A, B and C,
and they represent the tire’s ab ility to stop on wet pavement as
measured under controlled conditions on specified government
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 cornering (turn-
ing) traction.
■ Temperature A, B, C
The temperature grades are A (the highest), B, and C, represent-
ing the tire’s resistance to the generation of heat and its ability to
dissipate heat when tested under controlled conditions on a speci-
fied indoor laboratory 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.
The grade C corresponds to a level of performance which all passen-
ger car tires must meet under the Federal Motor Vehicle Safety Stan-
dard 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 for this tire are established for a
tire that 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.

580 6-1. Specifications
PRIUS_U (OM47668U) U.S.A.
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 vehicle’s designated seating
capacity

584 6-1. Specifications
PRIUS_U (OM47668U) U.S.A.
Tire related termMeaning
Passenger car tire A tire intended for use on passenger cars, mul-
tipurpose passenger vehicles, and trucks, that
have a gross vehicle weight rating (GVWR) of
10,000 lb. or less
Ply A layer of rubber-coated parallel cords
Ply separation A parting of rubber compound between adja-
cent 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 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
Sidewall That portion of a tire between the tread and
bead
Sidewall separation The parting of the rubber compound from the
cord material in the sidewall

585
6-1. Specifications
6
Vehicle specifications
PRIUS_U (OM47668U) U.S.A.
Tire related termMeaning
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
Tread That portion of a tire that comes into contact
with the road
Tread rib A tread section running circumferentially
around a tire
Tread separation Pulling 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 fixture The fixture used to hold the wheel and tire
assembly securely
during testing

601
PRIUS_U (OM47668U) U.S.A.
Alphabetical index
Alphabetical index
A/C ............................................ 270
ABS........................................... 245
Active head restraint................. 78
Air conditioning filter .............. 457
Air conditioning systemAir conditioning filter ............. 457
Automatic air conditioning 
system................................ 270
Remote Air Conditioning 
System ............................... 285
Steering wheel climate 
remote control switches ..... 280
Airbags Airbag operating conditions .. 117
Airbag precautions for your 
child.................................... 121
Airbag warning light .............. 497
Curtain shield airbag 
precautions ........................ 121
Front passenger occupant 
classification system .......... 126
General airbag precautions .. 121
Locations of airbags ............. 113
Modification and disposal of 
airbags ............................... 125
Side airbag precautions........ 121
Side and curtain shield airbags 
operating conditions ........... 117
SRS airbags ......................... 113
Antenna .................................... 298
Anti-lock brake system ........... 245
Armrest .................................... 383
Audio input .............................. 322
Audio system
Antenna ................................ 298
Audio input ........................... 322
AUX adapter ......................... 322
CD player/changer ............... 303
MP3/WMA disc ..................... 311
Optimal use .......................... 319
Portable music player ........... 322
Radio .................................... 294
Steering switches ................. 323 Automatic headlight leveling

system ....................................206
Automatic light control 
system ....................................206
AUX adapter .............................322
Auxiliary boxes ........................375
Back door
Back door ................................72
Smart key system... .................43
Wireless remote control ..........63
Back-up lights Replacing light bulbs .............472
Wattage .................................567
Battery Checking ...............................436
Hybrid battery 
(traction battery)....................32
If the vehicle 12 volt battery is 
discharged ..........................543
Preparing and checking 
before winter .......................261
Bluetooth
®................................326
Bottle holder .............................374
Brake Fluid ......................................432
Parking brake ........................179
Brake assist ..............................245
Break-in tips .............................151
Brightness control Instrument light control ..........184
A
B

607
Alphabetical index
PRIUS_U (OM47668U) U.S.A.
Smart key system
Antenna location............... 46, 58
Entry function ......................... 43
Starting the hybrid system .... 162
Solar Ventilation System ................................... 282
Spare tire Inflation pressure .................. 565
Storage location ................... 524
Spark plug................................ 562
Specifications .......................... 556
Speedometer ........................... 181
Steering wheel Adjustment ............................. 92
Audio switches ..................... 323
Storage compartment ............. 367
Storage feature ........................ 367
Stuck If your vehicle becomes 
stuck................................... 553
Sun visors ................................ 376
Switch Driving mode select 
switch ................................. 172
Emergency flasher switch .... 486
Fog light switch..................... 209
Ignition switch ....................... 162
Light switches ....................... 206
Power door lock switch........... 67
“POWER” switch .................. 162
Power window switch ............. 98
Ventilation switch.................. 282
Window lock switch ................ 98
Wipers and washer switch.... 210
Tail lights Switch ................................... 206
Talk switch ............................... 329
Telephone switch .................... 329 Theft deterrent system
Immobilizer system ...............108
Theft prevention labels............110
Tire inflation pressure .............565
Tire information Glossary ................................579
Size .......................................575
Tire identification number ......574
Uniform tire quality grading ...577
Tires Chains ...................................263
Checking ...............................441
Compact spare tire ................525
If you have a flat tire ..............524
Inflation pressure...................565
Information ............................572
Pressure warning system ......442
Replacing ..............................524
Rotating tires .........................441
Size .......................................565
Snow tires .............................264
Spare tire...............................525
Tonneau cover .........................385
Tools .........................................524
Total load capacity...................260
Towing Dinghy towing........................267
Emergency towing.................487
Trailer towing.........................266
TRAC .........................................245
Traction control........................245
Trailer towing ...........................266
Transmission “P” position switch .................174
Transmission .........................171
Trip information .......................188
Trip meter .................................188
Turn signal lights Replacing light bulbs .............472
Switch....................................178
Wattage .................................567
T

608 Alphabetical index
PRIUS_U (OM47668U) U.S.A.
Vanity lightsVanity lights ...........................377
Wattage .................................567
Vanity mirrors...........................377
Vehicle identification 
number ...................................557
Vehicle load limits.................... 260
Warning buzzers Brake system ........................496
Open door ............................ 499
Seat belt reminder .................499
Warning lights Anti-lock brake 
system (ABS) ......................497
Automatic headlight  leveling system .... ...............497
Brake system ........................496
Charging system .... ...............497
Electric power steering .........497
High coolant temperature ......499
Low fuel level ........................499
Malfunction indicator lamp ....497
Master warning......................499
Open door ............................. 499
Pre-Collision system ............. 497
Seat belt reminder .................499
SRS airbags .......................... 497
Tire pressure .........................499
Warning messages .................. 508
Washer Checking ............................... 434
Preparing and checking 
before winter ....................... 261
Switch.................................... 210
Washing and waxing ............... 404 Weight
Cargo capacity ...................... 260
Load limits ............................. 260
Weight ................................... 556
Wheels ...................................... 455
Window glasses ........................ 98
Window lock switch................... 98
Windows Power windows ....................... 98
Rear window defogger .......... 289
Washer.................................. 210
Windshield wipers ................... 210
Winter driving tips ................... 261
Wireless remote control key Locking/Unlocking ................... 63
Replacing the battery ............ 460
WMA disc.................................. 311V
W