2007 SUBARU IMPREZA tires

13-10Consumer information and Reporting safety defects
2. Calculate the available load capa-
city.
3. The result of step 2 shows that a
further 162 lbs (73 kg) of cargo can be
carried.
Example 2B
For example, if a person weighing 143
lbs (65 kg) and a child weighing 40 lbs
(18 kg) now enter the same vehicle
(bringing the number of occupants to three), and a child restraint system
weighing 11 lbs (5 kg) is installed in
the vehicle for the child to use, the
calculations are as follows:
1. Calculate the total weight.
2. Calculate the available load capa-
city.
3. The total weight now exceeds the
capacity weight by 32 lbs (15 kg), so
the cargo weight must be reduced by
32 lbs (15 kg) or more. &
Determining compatibility of
tire and vehicle load capaci- ties
The sum of four tires ’maximum load
ratings must exceed the maximum
loaded vehicle weight ( “GVWR ”). In
addition, sum of the maximum load
ratings of two front tires and of two
rear tires must exceed each axle ’s
maximum loaded capacity ( “GAWR ”).
Original equipment tires are designed
to fulfill those conditions.
The maximum loaded vehicle weight
is referred to Gross Vehicle Weight
Rating (GVWR). And each axle ’s
maximum loaded capacity is referred
to Gross Axle Weight Rating (GAWR).
The GVWR and each axle ’sGAWR
are shown on the vehicle certification
label affixed to the driver ’s door.
The GVWR and front and rear
GAWRs are determined by not only
the maximum load rating of tires but
also loaded capacities of the vehicle ’s
suspension, axles and other parts of

the body.
Therefore, this means that the vehicle
cannot necessarily be loaded up to
the tire’s maximum load rating on the
tire sidewall. & Adverse safety conse-
quences of overloading on
handling and stopping and
on tires
Overloading could affect vehicle
handling, stopping distance, vehicle
and tire as shown in the following.
This could lead to an accident and
possibly result in severe personal
injury. . Vehicle stability will deteriorate.
. Heavy and/or high-mounted loads
could increase the risk of rollover. . Stopping distance will increase.
. Brakes could overheat and fail.
. Suspension, bearings, axles and
other body parts could break or
experience accelerated wear that will
shorten vehicle life. . Tires could fail.
. Tread separation could occur.
. Tire could separate from its rim. &
Steps for Determining Cor-
rect Load Limit
1. Locate the statement “The com-
bined weight of occupants and cargo
should never exceed XXX pounds ”on
your vehicle ’s placard.
2. Determine the combined weight of
the driver and passengers that will be
riding in your vehicle.
3. Subtract the combined weight of
the driver and passengers from XXX
kilograms or XXX pounds.
4. The resulting figure equals the
available amount of cargo and lug-
gage load capacity. For example, ifthe “XXX ”amount equals 1,400 lbs
(635 kg) and there will be five- 150 lbs
(68 kg) passengers in your vehicle,
the amount of available cargo and
luggage load capacity is 650 lbs. (1,400 750 (5 6150) = 650 lbs)
5. Determine the combined weight of
luggage and cargo being loaded on
the vehicle. That weight may not
safely exceed the available cargo
and luggage load capacity calculated
in Step 4.
6. If your vehicle will be towing a trailer, load from your trailer will be
transferred to your vehicle. Consult
this manual to determine how this
reduces the available cargo and
luggage load capacity of your vehicle.
Consumer information and Reporting safety defects
13-11

13-12Consumer information and Reporting safety defects
Uniform tire quality grading standards
This information indicates the relative
performance of passenger car tires in
the area of treadwear, traction, and
temperature resistance. This is to aid
the consumer in making an informed
choice in the purchase of tires.
Quality grades can be found where
applicable on the tire sidewall be-
tween tread shoulder and maximum
section width. For example:
Treadwear 200 Traction AA Tem-
perature 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 conform
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 government
test course.
For example, a tire graded 150 would
wear one and one-half (1-1/2) times
as well on the government course as
a tire graded 100. The relative perfor-
mance of tires depends upon the
actual conditions of their use, how-
ever, 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 measured
under controlled conditions on speci-
fied government test surfaces of
asphalt and concrete. A tire marked
C may have poor traction perfor- mance.WARNING
The traction grade assigned to
this tire is based on straight-
ahead braking traction tests,
and does not include accelera-
tion, cornering, hydroplaning, or
peak traction characteristics.
& Temperature A, B, C
The temperature grades are A (the
highest), B, and C, representing thetire ’s resistance to the generation of
heat and its ability to dissipate heat
when tested under controlled condi-
tions on a specified indoor laboratory
test wheel. Sustained high tempera-
ture 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 passenger car tires must
meet under the Federal Motor Vehicle
Safety Standards No. 109. Grades B
and A represent higher levels of
performance on the laboratory test
wheel than the minimum required by

14-4Index
Driver ’s Control Center Differential ............................... 7-12
Auto indicator light ................................................. 3-20
Indicator light ......................................................... 3-21
Driving All-Wheel Drive vehicle ........................................... 3-19
Car phone/cell phone .................................................. 7
Drinking ..................................................................... 6
Drugs ........................................................................ 6
Foreign countries ..................................................... 8-4
Pets .......................................................................... 7
Snowy and icy roads ................................................ 8-9
Tips........................................................ 7-10, 7-12, 8-5
Tired or sleepy. ........................................................... 7
E
Electrical system ........................................................ 12-3
Electronic Brake Force Distribution (EBD) system ........................................................... 3-18, 7-23
Emergency Locking Retractor (ELR) ............................. 1-11
Engine Compartment overview ........................................... 11-6
Coolant ................................................................ 11-13
Exhaust gas (Carbon monoxide) ............................ 6, 8-2
Hood .................................................................... 11-4
Oil........................................................................ 11-8Overheating .......................................................... 9-11
Starting ................................................................... 7-7
Stopping ................................................................. 7-8
Exterior care .............................................................. 10-2 F
Flat tires
..................................................................... 9-4
Floor mat .................................................................... 6-9
Fluid level Automatic transmission ......................................... 11-20
Brake .................................................................. 11-25
Clutch ................................................................. 11-26
Power steering ..................................................... 11-24
Front
Differential gear oil ................................................ 11-21
Fog light .............................................................. 11-49
Seatbelt pretensioners ............................................ 1-19
Seats ..................................................................... 1-2
Turn signal light .................................................... 11-49
Fuel ........................................................................... 7-2
Economy hints ........................................................ 8-2
Filler lid and cap ...................................................... 7-4
Gauge ............................................................ 3-8, 3-12
Requirements ......................................................... 7-2
Fuses ..................................................................... 11-42
Fuses and circuits ...................................................... 12-6
G
GAWR (Gross Axle Weight Rating) ............................... 8-14
Glove box ................................................................... 6-4
GVWR (Gross Vehicle Weight Rating) ... ........................ 8-14
H
Hazard warning flasher .......................................... 3-6, 9-2
Head restraint adjustment ............................................. 1-4
Rear ...................................................................... 1-7

Rear seatFolding down ........................................................... 1-8
Rear window
Defogger button ..................................................... 3-29
Wiper and washer switch ........................................ 3-28
Wiper blades ........................................................ 11-39
Recommended Automatic transmission fluid ................................... 11-21
Brake fluid. ........................................................... 11-26
Clutch fluid ........................................................... 11-27
OIL grade and viscosity ...................... 11-11, 11-12, 11-20, 11-22, 11-23
Power steering fluid ............................................... 11-25
Spark plugs .......................................................... 11-18
Remote keyless entry system ........................................ 2-7
Replacement
Brake pad and lining ............................................. 11-29
Wiper blades ........................................................ 11-38
Replacing Air cleaner element ............................................... 11-15
Battery (remote keyless entry system) ........................ 2-7
Lost transmitters (keyless entry system) .................... 2-10
Replacing bulbs ........................................................ 11-45
Cargo area light .................................................... 11-51
Clearance light ..................................................... 11-49
Dome light ........................................................... 11-51
Front fog light ....................................................... 11-49
Front turn signal light ............................................. 11-49
Headlight ............................................................. 11-46
High mount stop light ............................................. 11-52
License plate light ................................................. 11-51 Map light
............................................................. 11-51
Rear combination light .......................................... 11-49
Trunk light ........................................................... 11-52
REV indicator light and buzzer ...................................... 3-9
Rocking the vehicle .................................................... 8-12
Roof rail and crossbar ................................................. 8-14
S Safety Precautions when driving ............................................. 4
Symbol ...................................................................... 2
Warnings ................................................................... 2
Seat Fabric ................................................................... 10-5
Heater .................................................................... 1-5
Seatbelt. ........................................................................ 4
Extender ............................................................... 1-18
Maintenance .......................................................... 1-18
Pretensioners ......................................................... 1-19
Safety tips .............................................................. 1-9
Warning light and chime .................................. 1-11, 3-14
Seatbelts .................................................................... 1-9
Security ID plate .......................................................... 2-3
Selector lever ............................................................. 7-16
Position indicator .................................................... 3-20
Shift lock release ........................................................ 7-19
Shock sensors ........................................................... 2-17
Snow tires ................................................................. 8-10
Snowy and icy roads ................................................... 8-9
Sounding a panic alarm ............................................... 2-8
Spark plugs ............................................................. 11-17 Index
14-7

14-8Index
Specifications ............................................................ 12-2
Speedometer ....................................................... 3-7, 3-11
SRS
Frontal airbag ........................................................ 1-39
Side airbag ........................................................... 1-50
SRS airbag (Supplemental Restraint System airbag) ... 4, 1-35
SRS airbag system
Monitors. ............................................................... 1-55
Servicing ............................................................... 1-56
Warning light ......................................................... 3-14
Starting the engine ....................................................... 7-7
State emission testing (U.S. only) .................................. 7-5
Steering wheel
Power ................................................................... 7-20
Tilt ....................................................................... 3-35
STI front lip spoiler ..................................................... 8-28
Stopping the engine ..................................................... 7-8
Storage compartment ................................................... 6-4
Sun shade ................................................................ 2-26
Sun visors ................................................................... 6-3
Supplemental Restraint System airbag (SRS) ................ 1-35
Synthetic leather upholstery ........................................ 10-5
T
Tachometer ......................................................... 3-7, 3-12
Temperature gauge .............................................. 3-8, 3-13
Temperature warning light (AT OIL TEMP) ..................... 3-17
Temporary spare tire .................................................... 9-2
Tie-down hooks ......................................................... 9-12
Tilt steering wheel ...................................................... 3-35 Tire
Chains .................................................................. 8-11
Inspection ............................................................ 11-30
Pressures and wear .............................................. 11-31
Replacement. ....................................................... 11-34
Rotation .............................................................. 11-34
Tires ......................................................................... 12-5
Types .................................................................. 11-30
Tires and wheels ...................................................... 11-30
Top tether anchorages ................................................ 1-32
Towing ...................................................................... 9-11
All wheels on the ground ......................................... 9-14
Flat-bed truck ......................................................... 9-13
Tie-down hooks ...................................................... 9-12
Weight .................................................................. 8-20
Trailer
Hitch ..................................................................... 8-17
Hitches .................................................................. 8-23
Towing .................................................................. 8-20
Towing tips ............................................................ 8-25
Trunk lid .................................................................... 2-20
Release handle ...................................................... 2-21
Trunk light ............................................................... 11-52
Turn signal Indicator lights ........................................................ 3-20
Lever .................................................................... 3-24
U
Under-floor storage compartment .................................. 6-12