tire size SUBARU IMPREZA 2011 4.G User Guide

possible because the spare tire is de-
signed only for temporary use.
Check the inflation pressure of the tem-
porary spare tire periodically to keep the
tire ready for use. The correct pressure is
60 psi (420 kPa, 4.2 kg/cm
2).
When using the temporary spare tire, note
the following. . Do not exceed 50 mph (80 km/h).
. Do not put a tire chain on the temporary
spare tire. Because of the smaller tire size,
a tire chain will not fit properly. . Do not use two or more temporary
spare tires at the same time.. Do not drive over obstacles. This tire
has a smaller diameter, so road clearance
is reduced.
1) Tread wear indicator bar
2) Indicator location mark
. When the wear indicator appears on
the tread, replace the tire. . The temporary spare tire must be used
only on a rear wheel. If a front wheel tire
gets punctured, replace the wheel with a
rear wheel and install the temporary spare
tire in place of the removed rear wheel. & Precautions for AWD models
with automatic transmission
Your vehicle is equipped with the AWD
(All-Wheel Drive) system. In addition, if
your vehicle is an AT model, before driving
your vehicle with the temporary spare tire,
deactivate the AWD capability of the
vehicle as follows. 1. Turn the ignition switch to the
“LOCK ”
position.
2. Pull any one spare fuse out of the
spare fuse holder in the engine compart-
ment. Spare fuses are attached on the
back side of the fuse holder cover. You
may pick up any one fuse in the spare
fuse holder. In case of emergency
9-3
– CONTINUED –

11-32Maintenance and service
temperature outside. By way of example,
the following table shows the required tire
pressures that correspond to various out-
side temperatures when the temperature
in the garage is 60 8F (15.6 8C).
Example:
Tire size: P205/55R16 89V and
P205/50R17 88V
Standard tire pressures:
Front: 33 psi (230 kPa, 2.3 kgf/cm
2)
Rear: 32 psi (220 kPa, 2.2 kgf/cm2)
Garage temperature: 60 8F (15.6 8C)
Outside
temperature Adjusted pressure
[psi (kPa, kgf/cm
2)]
Front Rear
30 8F( 18C) 36 (250, 2.5) 35 (240, 2.4)
10 8F( 12 8C) 38
(265, 2.65) 37
(255, 2.55)
10 8F( 23 8C) 40 (280, 2.8) 39 (270, 2.7)
If the low tire pressure warning light
illuminates when you drive the vehicle in
cold outside air after adjusting the tire
pressures in a warm garage, re-adjust the
tire pressures using the method described
above. Then, increase the vehicle speed
to at least 20 mph (32 km/h) and check to
see that the low tire pressure warning light
turns off a few minutes later. If the low tire
pressure warning light does not turn off, the tire pressure monitoring system may
not be functioning normally. In this event,
go to a SUBARU dealer to have the
system inspected as soon as possible.
While the vehicle is driven, friction be-
tween tires and the road surface causes
the tires to warm up. After illumination of
the low tire pressure warning light, any
increase in the tire pressures caused by
an increase in the outside air temperature
or by an increase in the temperature in the
tires can cause the low tire pressure
warning light to turn off.
System resetting is necessary when the
wheels are changed (for example, a
switch to snow tires) and new TPMS
valves are installed on the newly fitted
wheels. Have this work performed by a
SUBARU dealer following wheel replace-ment.
It may not be possible to install TPMS
valves on certain wheels that are on the
market. Therefore, if you change the
wheels (for example, a switch to snow
tires), use wheels that have the same part
number as the standard-equipment
wheels. Without four operational TPMS
valve/sensors on the wheels, the TPMS
will not fully function and the warning light
on the combination meter will illuminate
steadily after blinking for approximatelyone minute.
When a tire is replaced, adjustments are
necessary to ensure continued normal
operation of the tire pressure monitoring
system. As with wheel replacement, there-
fore, you should have the work performed
by a SUBARU dealer.
WARNING
If the low tire pressure warning light
does not illuminate briefly after the
ignition switch is turned ON or the
light illuminates steadily after blink-
ing for approximately one minute,
you should have your Tire Pressure
Monitoring System checked at a
SUBARU dealer as soon as possi-ble.
If this light illuminates while driving,
never brake suddenly and keep
driving straight ahead while gradu-
ally reducing speed. Then slowly
pull off the road to a safe place.
Otherwise an accident involving
serious vehicle damage and serious
personal injury could occur.
If this light still illuminates while
driving after adjusting the tire pres-
sure, a tire may have significant
damage and a fast leak that causes
the tire to lose air rapidly. If you have

&Tire replacement
The wheels and tires are important and
integral parts of your vehicle ’s design;
they cannot be changed arbitrarily. The
tires fitted as standard equipment are
optimally matched to the characteristics
of the vehicle and were selected to give
the best possible combination of running
performance, ride comfort, and service
life. It is essential for every tire to have a
size and construction matching those
shown on the tire placard and to have a
speed symbol and load index matching
those shown on the tire placard.
Using tires of a non-specified size detracts
from controllability, ride comfort, braking
performance, speedometer accuracy and
odometer accuracy. It also creates incor-
rect body-to-tire clearances and inappro-
priately changes the vehicle ’sground
clearance.
All four tires must be the same in terms of
manufacturer, brand (tread pattern), con-
struction, and size. You are advised to
replace the tires with new ones that are
identical to those fitted as standard equip-ment.
For safe vehicle operation, SUBARU
recommends replacing all four tires at
the same time.WARNING
. All four tires must be the same in
terms of manufacturer, brand
(tread pattern), construction, de-
gree of wear, speed symbol, load
index and size. Mixing tires of
different types, sizes or degrees
of wear can result in damage tovehicle ’s powertrain. Use of dif-
ferent types or sizes of tires can
also dangerously reduce con-
trollability and braking perfor-
mance and can lead to an acci-dent.
. Use only radial tires. Do not use
radial tires together with belted
bias tires and/or bias-ply tires.
Doing so can dangerously re-
duce controllability, resulting in
an accident.
& Wheel replacement
When replacing wheels due, for example,
to damage, make sure the replacement
wheels match the specifications of the
wheels that are fitted as standard equip-
ment. Replacement wheels are available
from SUBARU dealers.WARNING
Use only those wheels that are
specified for your vehicle. Wheels
not meeting specifications could
interfere with brake caliper opera-
tion and may cause the tires to rub
against the wheel well housing dur-
ing turns. The resulting loss of
vehicle control could lead to anaccident.
NOTE
When any of the wheels are removed
and replaced for tire rotation or to
change a flat tire, always check the
tightness of the wheel nuts after driv-
ing approximately 600 miles (1,000 km).
If any nut is loose, tighten it to the
specified torque. Maintenance and service
11-37

&Tires
Tire size P205/55R16 89V P205/50R17 88V 235/45R17 245/40R18
Wheel size 1666
1/2JJ 17 67JJ 17 68JJ 18 681/2J
Pressure Front 33 psi (230 kPa, 2.3 kgf/cm2)
Rear 32 psi (220 kPa, 2.2 kgf/cm2)
Temporary
spare tire Size T125/70 D17
T135/70 D17
Pressure 60 psi (420 kPa, 4.2 kgf/cm
2)
Wheel nut tightening torque 72 lbf·ft (100 N·m, 10 kgf·m)*
*: This torque is equivalent to applying approximately 88 to 110 lbf (40 to 50 kgf) at the edge of the wheel nut wrench. If you have tightened the wheel
nuts by yourself, have the tightening torque checked at the nearest automotive service facility as soon as possible.
& Wheel alignment
Item 4-door 5-door
Non-turbo models Turbo models Non-turbo models Turbo models
Except STI STI Except
OUTBACK OUTBACK Except STI STI
Toe Front 0+ 0.12 in (0 +3 mm)
Toe angle (sum of both wheels): 0 8+0815 ’
Rear
Camber* Front–0 810 ’+ 0830 ’ –0850 ’+ 0830 ’ –0845 ’+ 0830 ’ –0 810 ’+ 0830 ’ –0805 ’+ 0830 ’ –0805 ’+ 0830 ’ –0 845 ’+ 0830 ’
Rear –1 805 ’+ 0845 ’ –1 835 ’+ 0845 ’ –1830 ’+ 0845 ’ –1805 ’+ 0845 ’ –1835 ’+ 0845 ’ –
1 830 ’+ 0845 ’
*: The differential between right-hand camber and left-hand camber should be within 45 ’or less. Specifications
12-11

13-2Consumer information and Reporting safety defects
For U.S.A.
The following information has been
compiled according to Code of
Federal Regulations “Title 49, Part
575 ”. Tire information &
Tire labeling
Many markings (e.g. Tire size, Tire
Identification Number or TIN) are
placed on the sidewall of a tire by
tire manufacturers. These markings
can provide you with useful infor-
mation on the tire. ! Tire size
Your vehicle comes equipped with
P-Metric tire size. It is important to
understand the sizing system in
selecting the proper tire for your
vehicles. Here is a brief review of
the tire sizing system with a break-
down of its individual elements. ! P Metric
With the P-Metric system, Section
Width is measured in millimeters.
To convert millimeters into inches,
divide by 25.4. The Aspect Ratio
(Section Height divided by Section
Width) helps provide more dimen-
sional information about the tiresize. Example:
(1) P = Certain tire type used on
light duty vehicles such as passen-
ger cars
(2) Section Width in millimeters
(3) Aspect Ratio (= section height 7
section width).
(4) R = Radial Construction
(5) Rim diameter in inches ! Load and Speed Rating Descrip- tions
The load and speed rating descrip-
tions will appear following the size designation.
They provide two important facts
about the tire. First, the number
designation is its load index. Sec-
ond, the letter designation indicates
the tire ’s speed rating.

Example:
(6) Load Index: A numerical code
which specifies the maximum load
a tire can carry at the speed
indicated by its speed symbol, at
maximum inflation pressure.
For example,“90 ”means 1,323 lbs
(600 kg), “89 ”means 1,278 lbs (580
kg).
WARNING
Load indices apply only to the
tire, not to the vehicle. Putting
a load rated tire on any vehicle
does not mean the vehicle can
be loaded up to the tire ’s rated
load.
(7) Speed Rating: An alphabetical
system describing a tire ’s capability
to travel at established and prede-
termined speeds.
For example, “V ” means 149 mph
(240 km/h)
WARNING
. Speed ratings apply only to
the tire, not to the vehicle.
Putting a speed rated tire on
any vehicle does not mean
the vehicle can be operated
at the tire ’s rated speed.
. The speed rating is void if
the tires are worn out, da-
maged, repaired, retreaded,
or otherwise altered from
their original condition. If
tires are repaired, re-
treaded, or otherwise al-
tered, they may not be sui-
table for original equipment
tire designed loads andspeeds.
! Tire Identification Number (TIN)
Tire Identification Number (TIN) is
marked on the intended outboard
sidewall. The TIN is composed of
four groups. Here is a brief review
of the TIN with a breakdown of its
individual elements.
(1) Manufacturer ’s Identification
Mark
(2) Tire Size
(3) Tire Type Code
(4) Date of Manufacture
The first two figures identify the
week, starting with “01 ”to represent
the first full week of the calendar
year; the second two figures repre-
sent the year. For example, 0101
means the 1st week of 2001.
! Other markings
The following makings are also
placed on the sidewall. ! Maximum permissible inflation
pressure
The maximum cold inflation pres-
sure to which this tire may be
inflated. For example, “300 kPa
(44 PSI) MAX. PRESS ”
Consumer information and Reporting safety defects
13-3
– CONTINUED –

13-4Consumer information and Reporting safety defects
!Maximum load rating
The load rating at the maximum
permissible weight load for this tire.
For example, “MAX. LOAD 580 kg
(1279 LBS) @ 300 kPa (44 PSI)
MAX. PRESS. ”
WARNING
Maximum load rating applies
only to the tire, not to the
vehicle. Putting a load rated
tire on any vehicle does not
mean the vehicle can be
loaded up to the tire ’s rated
load.
! Construction type
Applicable construction of this tire.
For example, “TUBELESS STEEL
BELTED RADIAL ”
! Construction
The generic name of each cord
material used in the plies (both
sidewall and tread area) of this tire.
For example, “PLIES: TREAD 2 STEEL + 2 POLYESTER SIDE-
WALL 2 POLYESTER
”
! Uniform Tire Quality Grading (UTQG)
For details, refer to “Uniform tire
quality grading standards ”F 13-15 .
& Recommended tire inflation pressure
! Recommended cold tire infla-
tion pressure
For recommended cold tire inflation
pressure for your vehicle ’s tires,
refer to “Tires ”F 12-11 .
! Vehicle placard
The vehicle placard is affixed to the driver ’s side B-pillar.
Example:
The vehicle placard shows original
tire size, recommended cold tire
inflation pressure on each tire at
maximum loaded vehicle weight,
seating capacity and loading infor-mation. ! Adverse safety consequences
of under-inflation
Driving at high speeds with exces-
sively low tire pressures can cause
the tires to flex severely and to
rapidly become hot. A sharp in-

.Passenger car tire
A tire intended for use on passen-
ger cars, multipurpose passenger
vehicles, and trucks, that have a
gross vehicle weight rating (GVWR)
of 10,000 lbs (4,535 kg) or less. . Ply
A layer of rubber-coated parallel cords.. Ply separation
A parting of rubber compound
between adjacent plies.. Pneumatic tire
A mechanical device made of rub-
ber, chemicals, fabric and steel or
other materials, that, when
mounted on an automotive wheel,
provides the traction and contains
the gas or fluid that sustains theload. . Production options weight
The combined weight of those
installed regular production options
weighing over 5.1 lbs (2.3 kg) in
excess of those standard items
which they replace, not previously
considered in curb weight or acces- sory weight, including heavy duty
brakes, ride levelers, roof rack,
heavy duty battery, and special trim.
. 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. . Recommended inflation pres-
sure
The cold inflation pressure recom-
mended by a vehicle manufacturer. . Reinforced tire
A tire designed to operate at higher
loads and at higher inflation pres-
sures than the corresponding stan-
dard tire. . Rim
A metal support for a tire or a tire
and tube assembly upon which the
tire beads are seated. . Rim diameter
Nominal diameter of the bead seat. . Rim size designation
Rim diameter and width. .
Rim type designation
The industry of manufacturer ’s des-
ignation for a rim by style or code. . Rim width
Nominal distance between rim flanges. . Section width
The linear distance between the
exteriors of the sidewalls of an
inflated tire, excluding elevations
due to labeling, decoration, or
protective bands. . Sidewall
That portion of a tire between the
tread and bead.. Sidewall separation
The parting of the rubber com-
pound from the cord material in
the sidewall.. Test rim
The rim on which a tire is fitted for
testing, and it 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.
Consumer information and Reporting safety defects
13-7
– CONTINUED –

14-10Index
Tilt/telescopic ......................................................... 3-50
Stopping the engine ................................................... 7-10
Storage compartment ................................................... 6-4
Sun shade ................................................................ 2-30
Sun visors ................................................................... 6-4
Supplemental Restraint System airbag (SRS) ................ 1-35
Synthetic leather upholstery ........................................ 10-5
T
Tachometer ................................................................. 3-9
Temperature gauge .................................................... 3-11
Temperature warning light AT OIL TEMP ........................................................ 3-18
Coolant ................................................................. 3-17
Rear differential oil ................................................. 3-19
Temporary spare tire .................................................... 9-2
Tether (child restraint system) .............................. 1-29, 1-31
Tie-down hooks ......................................................... 9-14
Tire ............................................................... 11-31, 12-11
Chains .................................................................. 8-11
Inspection ............................................................ 11-33
Pressures and wear .............................................. 11-33
Replacement ........................................................ 11-37
Rotation ............................................................... 11-36
Size and pressure ................................................. 12-11
Types .................................................................. 11-31
Tire pressure monitoring system (TPMS). .... 7-38, 9-10, 11-31
Warning light ......................................................... 3-19
Tires and wheels. ...................................................... 11-31
Tools .......................................................................... 9-4
Top tether anchorages ........................................ 1-29, 1-31 Towing
...................................................................... 9-14
All wheels on the ground ......................................... 9-17
Flat-bed truck ......................................................... 9-17
Hooks ................................................................... 9-14
Trailer Towing .................................................................. 8-15
Trip meter ................................................................... 3-8
Trunk lid .................................................................... 2-25
Release handle ...................................................... 2-25
Trunk light ............................................................... 11-55
Turn signal
Indicator lights ........................................................ 3-26
Lever .................................................................... 3-33
U
Under-floor storage compartment .................................. 6-14
USB storage device operations .................................... 5-37
V
Valet mode ................................................................ 2-19
Vanity mirror ............................................................... 6-4
Vehicle Capacity weight ...................................................... 8-12
Identification ........................................................ 12-19
Symbols .................................................................... 3
Vehicle Dynamics Control
Mode switch .......................................................... 7-36
OFF indicator light .................................................. 3-23
OFF switch ............................................................ 7-37
Operation indicator light ........................................... 3-23
System .................................................................. 7-34