tires TOYOTA PRIUS PHV 2012 Service Manual

629
6-1. Specifications
6
Vehicle specifications
PRIUS PHV_OM_OM47818U_(U)
Uniform Tire Quality Grading
This information has been prepared in accordance with regulations
issued by the National Highway Tr affic Safety Administration of the
U.S. Department of Transportation.
It provides the purchasers and/or prospective purchasers of Toyota
vehicles with information on uniform tire quality grading.
Your Toyota dealer will help answ er any questions you may have as
you read this information.
■ DOT quality grades
All passenger vehicle tires mu st 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 Traction AA Temperature A
■ Treadwear
The treadwear grade is a comparative rating based on the wear
rate of the tire when tested under controlled conditions on a speci-
fied 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 diff er significantly from the norm due
to variations in driving habits, service practices and differences in
road characteristics and climate.

630 6-1. Specifications
PRIUS PHV_OM_OM47818U_(U)
■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 cond itions 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.
Grade C corresponds to a level of performance which all passenger
car tires must meet under the Federal 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.

647
6
Vehicle specifications
PRIUS PHV_OM_OM47818U_(U)
6-3. Initialization
Items to initialize
ItemWhen to initializeReference
Maintenance data After the maintenance is performed P. 432
Tire pressure warning
system • When rotating the tires on vehicles
with differing front and rear tire infla-
tion pressures
• When changing the tire size P. 478
The following items must be init
ialized for normal system operation
after such cases as the 12-volt batt ery being reconnected, or mainte-
nance being performed on the vehicle.

675
Alphabetical index
PRIUS PHV_OM_OM47818U_(U)
Odometer ................................. 257
Oil
Engine oil.............................. 460
Opener Back door ............................. 140
Fuel filler door....................... 174
Hood ..................................... 442
Outside rear view mirrors Adjusting and folding ............ 169
Outside rear view mirror defogger switch .................... 375
Outside temperature
display ................................... 394
Overheating ............................. 600
Parking brake .......................... 255
Parking lights Switch ................................... 292
PCS ........................................... 335
Personal lights Switch ................................... 383
Wattage ................................ 620
Plug-in hybrid system Driving tips.............................. 67
EV driving range ..................... 58
EV mode................................. 35
EV/HV mode selection
switch ................................... 37
Features ................................. 32
How to charge ........................ 80
HV mode ................................ 36
Plug-in Hybrid Applications .... 70
Power outlets........................... 395
Power sources........................... 77
“POWER” switch ..................... 238
Power windows ....................... 171
Pre-collision system ............... 335 Radar cruise control
system ....................................312
Radiator ....................................466
Radio
*
Radio data system*
RDS*
Rear seats
Adjustment ............................149
Folding down .........................150
Rear turn signal lights Replacing light bulbs .............507
Wattage .................................620
Rear view mirror...............166, 169
Rear view monitor system
*
Rear window and outside rear view mirror
defoggers ...............................375
Rear window wiper and
washer ....................................304
Remote Air C onditioning
System ....................................371
Replacing
Electronic key battery ............493
Fuses ....................................495
Light bulbs .............................507
Tires ......................................448
Reporting safety defects for U.S. owners ............................650
O
P
R
*: Refer to “Display Audio System Owner’s Manual” or “Navigation System Owner’s Manual”.

677
Alphabetical index
PRIUS PHV_OM_OM47818U_(U)
Switch
Audio remote control switches
*
Cruise control switch ............ 308
Driving mode selectswitch ................................. 247
Eco drive mode switch ......... 247
Emergency flasher switch .... 524
EV/HV mode selection switch ................................... 37
Fog light switch..................... 298
Fuel filler door opener switch ................................. 174
Hazard light switch ............... 524
Headlight cleaner switch ...... 307
Ignition switch ....................... 238
Light switches ....................... 292
Power door lock switch......... 134
“POWER” switch .................. 238
Power window switch ........... 171
Pre-collision braking off switch ................................. 336
Talk switch
*
Telephone switch*
Window lock switch .............. 171
Wipers and washer switch.... 300 Tail lights
Switch....................................292
Talk switch
*
Telephone switch*
Theft deterrent system Immobilizer system ...............179
Theft prevention labels............181
Tire inflation pressure .............486
Tire information Glossary ................................631
Size .......................................627
Tire identification number ......626
Uniform Tire Quality Grading ...............................629
Tires
Chains ...................................351
Checking ...............................476
If you have a flat tire ..............566
Inflation pressure...................486
Inflation pressure sensor .......477
Information ............................625
Replacing ..............................448
Rotating tires .........................476
Size .......................................619
Snow tires .............................349
Tire pressure warning system ........................476, 538
T
GW Refer to