2005 SUBARU IMPREZA tires

13-15
Consumer information and Reporting safety defects
– CONTINUED –
Uniform tire quality grading stan-
dards
This information indicates the relative perfor-
mance of passenger car tires in the area of
treadwear, traction, and temperature resistance.
This is to aid the consumer in making an in-
formed choice in the purchase of tires.
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
The quality grades apply to new pneumatic tires
for use on passenger cars. However, they do not
apply to deep tread, winter type snow tires,
space-saver or temporary use spare tires, tires
with nominal rim diameters of 12 inches or less,
or to some limited production tires.
All passenger car tires must confirm to Federal
Safety Requirements in addition to these grades. „Treadwear
The treadwear grade is a comparative rating based on the wear rate of the tire when tested
under controlled conditions on a specified gov-
ernment test course.
For example, a tire graded 150 would wear one
and one-half (1-1/2) times as well on the govern-
ment course as a tire graded 100. The relative
performance of tires depends upon the actual
conditions of their use, however, and may depart
significantly from the norm due to variations in
driving habits, service practices and differences
in road characteristics and climate. „
Traction AA, A, B, C
The traction grades, from highest to lowest, are
AA, A, B and C. Those grades represent the
tire’s ability to stop on wet pavement as mea-
sured under controlled conditions on specified
government test surfaces of asphalt and con-
crete. A tire marked C may have poor traction
performance.
The traction grade assigned to this tire is
based on straight-ahead braking traction

13-16
Consumer information and Reporting safety defects
tests, and does not include acceleration,
cornering, hydroplaning, or peak traction
characteristics.
„ Temperature A, B, C
The temperature grades are A (the highest), B,
and C, representing the tire’s resistance to the
generation of heat and its ability to dissipate heat
when tested under controlled conditions on a
specified indoor laboratory test wheel. Sustained
high temperature can cause the material of the
tire to degenerate and reduce tire life, and exces-
sive temperature can lead to sudden tire failure.
The grade C corresponds to a level of perfor-
mance which all passenger car tires must meet
under the Federal Motor Vehicle Safety Stan-
dards No. 109. Grades B and A represent higher
levels of performance on the laboratory test
wheel than the minimum required by law.
The temperature grade for this tire is es-
tablished for a tire that is properly inflated and not overloaded. Excessive speed, un-
derinflation, or excessive loading, either
separately or in combination, can cause
heat buildup and possible tire failure.

14-4
Index
Differential gear oil
Front ........................................................... 11-35
Rear ............................................................ 11-36
Dimensions ........................................................ 12-2
Disarming the system ........................................ 2-19
Disc brake pad wear warning indicators ............ 7-31
Dome light ................................................ 6-2, 11-81
Door locks ........................................................... 2-6
Door open warning light .................................... 3-26
Drive belts ....................................................... 11-29
Driver’s control center differential ...................... 7-18
Auto indicator light ........................................ 3-28
Indicator lights .............................................. 3-28
Driving Drinking ............................................................. 9
Drugs ................................................................. 9
Foreign countries ............................................ 8-6
Mobile phone ................................................... 10
Pets ................................................................. 11
Snowy and icy roads .................................... 8-13
Tips ............................................... 7-14, 7-17, 8-7
Tired or sleepy ................................................. 10
E
EBD (Electronic brake force distribution) system ........................................................... 7-34
Electrical system ............................................... 12-3 Electronic Brake Force Distribution (EBD)
system ........................................................... 7-34
Emergency Locking Retractor (ELR) ................ 1-14
Engine Compartment overview ................................ 11-8
Coolant ....................................................... 11-19
Exhaust gas (Carbon monoxide) ................ 8, 8-3
Hood ............................................................. 11-5
Oil ............................................................... 11-11
Overheating .................................................. 9-16
Starting ........................................................... 7-9
Stopping ....................................................... 7-11
Exterior care ...................................................... 10-2 F
Flat tires .............................................................. 9-5
Floor mat ........................................................... 6-13
Fluid level
Automatic transmission .............................. 11-32
Brake .......................................................... 11-40
Clutch ......................................................... 11-41
Power steering ........................................... 11-38
Fog light button ................................................. 3-36
Folding down the rear seat ................................ 1-12
Front Differential gear oil ..................................... 11-35
Fog light ...................................................... 11-78

14-8
Index
Trunk light ................................................... 11-82
REV indicator light and buzzer .......................... 3-13
Rocking the vehicle ........................................... 8-16
Roof rail and crossbar ....................................... 8-20 S Seat Fabric ........................................................... 10-6
Heater ............................................................. 1-7
Seatbelt .................................................................. 6
Maintenance ................................................. 1-27
Pretensioners ............................................... 1-28
Safety tips ..................................................... 1-13
Warning light and chime ...................... 1-15, 3-20
Seatbelts ........................................................... 1-13
Security system ................................................. 2-17
Selector lever .................................................... 7-23 Position indicator .......................................... 3-27
Shift lock release ............................................... 7-27
Side ventilators .................................................... 4-3
Snow tires ......................................................... 8-14
Sounding a panic alarm ..................................... 2-11
Spark plugs ..................................................... 11-28
Specifications .................................................... 12-2
Speedometer .............................................. 3-8, 3-15
SRS airbag (Supplemental Restraint System airbag) ....................................................... 6, 1-53 SRS airbag system monitors ............................. 1-73
SRS airbag system servicing ............................ 1-74
SRS airbag system warning light ...................... 3-20
SRS frontal airbag ............................................. 1-57
SRS side airbag ................................................ 1-65
Starting the engine .............................................. 7-9
State emission testing (U.S. only) ....................... 7-7
Stopping the engine .......................................... 7-11
Storage compartments ........................................ 6-5
Sun shades ....................................................... 2-35
Sun visors ........................................................... 6-4
Supplemental Restraint System airbag
(SRS) ............................................................. 1-53
Synthetic leather upholstery .............................. 10-6 T
Tachometer ................................................ 3-9, 3-16
Temperature gauge .................................. 3-11, 3-18
Temporary spare tire ........................................... 9-3
Tilt steering wheel ............................................. 3-50 Tire
Chains .......................................................... 8-16
Inspection ................................................... 11-47
Pressures and wear ................................... 11-48
Replacement .............................................. 11-53
Rotation ...................................................... 11-52
Tires .................................................................. 12-5

14-9
Index
Types .......................................................... 11-47
Tires and wheels ............................................. 11-47
Top tether anchorages ...................................... 1-47
Towing ............................................................... 9-17 All wheels on the ground .............................. 9-21
Flat-bed truck ................................................ 9-20
Trailer
Hitch ............................................................. 8-25
Hitches .......................................................... 8-34
Towing .......................................................... 8-29
Towing tips ................................................... 8-37
Trunk lid ............................................................. 2-27 Release handle ............................................. 2-28
Trunk light ........................................................ 11-82
Turn signal Indicator lights .............................................. 3-27
Lever ............................................................. 3-32
U
Under-floor storage compartment ...................... 6-18 V
Valet mode ........................................................ 2-20
Vanity mirror ........................................................ 6-4Vehicle Capacity weight ............................................ 8-19
Identification ............................................... 12-11 Symbols ............................................................. 4
Ventilator ............................................................. 4-2 W
Warning and indicator lights .............................. 3-20
Warning lights ABS .............................................................. 3-23
All-wheel drive .............................................. 3-26
Anti-lock Brake system ................................. 3-23
AT OIL TEMPerature .................................... 3-22
Brake system ................................................ 3-24
Charge .......................................................... 3-22
CHECK ENGINE .......................................... 3-21
Door open ..................................................... 3-26
Oil pressure .................................................. 3-22
R.Diff TEMPerature ...................................... 3-23
Seatbelt ............................................... 1-15, 3-20
SRS airbag system ....................................... 3-20
Warranties and maintenance ............................ 8-29
Washing ............................................................ 10-2
Waxing and polishing ........................................ 10-3
Wear indicators ............................................... 11-51
Wheel Alignment ...................................................... 12-6
Balance ....................................................... 11-51
Replacement .............................................. 11-53
Windows ............................................................ 2-24

GAS STATION REFERENCE
Fuel: T2.5-liter non-turbo models
Use only unleaded gasoline with an octane rating of 87 AKI
or higher. T 2.0-liter turbo models
Use premium unleaded gasoline with an octane rating of 91
AKI or higher. If premium unleaded gasoline is not avail-
able, regular unleaded gasoline with octane rating of 87
AKI or higher may be temporarily used. For optimum en-
gine performance and driveability, it is required that you
use premium grade unleaded gasoline. T 2.5-liter turbo models
Use premium unleaded gasoline with an octane rating of 93
AKI or higher. If premium unleaded gasoline with an octane
rating of 93 AKI is not available, premium unleaded gaso-
line with octane rating of 91 AKI or higher may be tempo-
rarily used. For optimum engine performance and driveabil- ity, it is required that you use premium grade unleaded gas-
oline with an octane rating of 93 AKI or higher. „
Fuel octane rating
This octane rating is the average of the Research Octane
and Motor Octane numbers and is commonly referred to as
the Anti Knock Index (AKI). Refer to “ Fuel” section in this
manual. Fuel capacity:
15.9 US gal (60 liters, 13.2 Imp gal) Engine oil:
Use only API classification SL with the words “ENERGY
CONSERVING” and the New API certification mark (star-
burst mark) displayed on the container. Engine oil capacity:
4.2 US qt (4.0 liters, 3.5 Imp qt)
Cold tire pressure:
*1: The recommended cold tire pressure for the 215/45R17 87W tire is not indicated on the vehicle placard attached to the
driver’s side B-pillar since this tire is a dealer option for the WRX. If your vehicle is equipped with 215/45R17 87W tires, be
sure to adjust them to the air pressure shown on this page.
ItemRS, RS sport package, WRXWRX (option tire) *1WRX-STi
Tire sizeP205/55R16 89V215/45R17 87W225/45R17 90W
Wheel size16
× 6 1
/2 JJ17
× 7 JJ17 × 8 JJ
PressureFront32 psi (220 kPa, 2.2 kgf/cm 2
)33 psi (230 kPa, 2.3 kgf/cm 2
)36 psi (250 kPa, 2.5 kgf/cm 2
)
Rear29 psi (200 kPa, 2.0 kgf/cm 2
)32 psi (220 kPa, 2.2 kgf/cm 2
)30 psi (210 kPa, 2.1 kgf/cm 2
)
Temporary
spare tireSizeT135/70 D16T135/70 D17
Pressure60 psi (420 kPa, 4.2 kgf/cm 2
)