SUBARU IMPREZA 2005 2.G Owners Manual

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Consumer information and Reporting safety defects
(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 cal-
endar year; the second two figures represent the
year. For example, 0101 means the 1st week of
2001. T
Other markings
The following makings are also placed on the
sidewall. V Maximum permissible inflation pressure
The maximum cold inflation pressure to which
this tire may be inflated. For example, “300 kpa
(44 PSI) MAX. PRESS” V 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.”
Maximum load rating applies only to the
tire, not to the vehicle. Putting a load rated
tire on any vehicle does not mean the vehi-
cle can be loaded up to the tire’s rated
load.
V Construction type
Applicable construction of this tire.
For example, “TUBELESS STEEL BELTED RA-
DIAL” V 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 SIDEWALL 2 POLYESTER” V Uniform Tire Quality Grading (UTQG)
For details, refer to “Uniform tire quality grading
standards” in this chapter.

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„Recommended tire inflation pressure
T Recommended cold tire inflation pressure
Recommended cold tire inflation pressure for your vehicle’s tires is as follows,
*1: The recommended cold tire pressure for the 215/45R17 87W tire is not indicated on the vehicle plac-
ard 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
)

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T
Vehicle placard
The vehicle placard is affixed to the driver’s side B-pillar. Example:
The vehicle placard shows original tire size, rec-
ommended cold tire inflation pressure on each
tire at maximum loaded vehicle weight, seating
capacity and loading information. T
Adverse safety consequences of under-in-
flation
Driving at high speeds with excessively low tire
pressures can cause the tires to flex severely
and to rapidly become hot. A sharp increase in
temperature could cause tread separation, and
failure of the tire(s). Possible resulting loss of ve-
UGD502BAMD
TIRE AND LOADING INFORMATIONSEATING CAPACITY : TOTAL 5
ORIGINAL TIRE SIZE
SEE OWNER’S MANUAL FOR
ADDITIONAL INFORMATION
COLD TIRE
INFLATION PRESSRE
COLD TIRE
INFLATION PRESSRE
FRONT
REAR220kPa,32PSI 200kPa,29PSIP205/55R16
T135/70D16
420kPa, 60PSI
COMPACT SPARE TIRE
The combined weight of occupants andcargo should never exceed 408kg or 900lbs.
FRONT 2 : REAR 3
UGD513AA

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hicle control could lead to an accident. TMeasuring and adjusting air pressure to
achieve proper inflation
Check and, if necessary, adjust the pressure of
each tire (including the spare) at least once a
month and before any long journey. Check the
tire pressures when the tires are cold. Use a
pressure gauge to adjust the tire pressures to the
specific values. Driving even a short distance
warms up the tires and increases the tire pres-
sures. Also, the tire pressures are affected by the
outside temperature. It is best to check tire pres-
sure outdoors before driving the vehicle. When a
tire becomes warm, the air inside it expands,
causing the tire pressure to increase. Be careful
not to mistakenly release air from a warm tire to
reduce its pressure. „ Glossary of tire terminology
y Cold tire pressure
The pressure in a tire that has been driven less
than 1 mile or has been standing for three hours
or more. y Maximum inflation pressure The maximum cold inflation pressure to which a
tire may be inflated. y
Recommended inflation pressure
The cold inflation pressure recommended by a
vehicle manufacturer. y Intended outboard sidewall
1)The sidewall that contains a whitewall, bears
white lettering or bears manufacturer, brand,
and/or model name molding that is higher or
deeper than the same molding on the other
sidewall of the tire, or
2)The outward facing sidewall of an asymmet-
rical tire that has a particular side that must al-
ways face outward when mounting on a vehi- cle.
y Accessory weight
The combined weight (in excess of those stan-
dard items which may be replaced) of floor mats,
leather seats and cross bars to the extent that
these items are available as factory-installed
equipment (whether installed or not). y Curb weight
The weight of a motor vehicle with standard
equipment including the maximum capacity of fu-
el, oil, and coolant and air conditioning.

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y
Maximum loaded vehicle weight
The sum of curb weight, accessory weight, vehi-
cle capacity weight and production optionsweight. y Normal occupant weight
150 lbs (68 kg) times the number of occupants (3 occupants). y Occupant distribution
Distribution of occupants in a vehicle, 2 in front,
1 in rear seat. y Production options weight
The combined weight of those installed regular
production options weighing over 5.1 lbs (2.3 kg)
in excess of those standards items which they
replace, not previously considered in curb weight
or accessory weight. y Vehicle capacity weight
The total weight of cargo, luggage and occu-
pants that can be added to the vehicle. y Vehicle maximum load on a tire
Load on an individual tire that is determined by
distributing to each axle its share of the maxi-
mum loaded vehicle weight and dividing by two. y Vehicle normal load on a tire
Load on an individual tire that is determined by distributing to each axle its share of the curb
weight, accessory weight, and normal occupant
weight and dividing by two. „
Tire care – maintenance and safety practices
y Check on a daily basis that the tires are free
from serious damage, nails, and stones. At the
same time, check the tires for abnormal wear. y Inspect the tire tread regularly and replace the
tires before their tread wear indicators become
visible. When a tire’s tread wear indicator be-
comes visible, the tire is worn beyond the ac-
ceptable limit and must be replaced immediately.
With a tire in this condition, driving at even low
speeds in wet weather can cause the vehicle to
hydroplane. Possible resulting loss of vehicle
control can lead to an accident. y To maximize the life of each tire and ensure
that the tires wear uniformly, it is best to rotate
the tires every 7,500 miles (12,500 km). Rotating
the tires involves switching the front and rear
tires on the right hand side of the vehicle and
similarly switching the front and rear tires on the

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left hand side of the vehicle. (Each tire must be
kept on its original side of the vehicle.) Replace
any damaged or unevenly worn tire at the time of
rotation. After tire rotation, adjust the tire pres-
sures and make sure the wheel nuts are correct-
ly tightened. A tightening torque specification
and a tightening sequence specification for the
wheel nuts can be found “Flat tires” in Chapter 9. „Vehicle load limit – how to determine
The load capacity of your vehicle is determined
by weight, not by available cargo space. The
load limit of your vehicle is shown on the vehicle
placard attached to the driver’s side B-pillar. Lo-
cate the statement “The combined weight of oc-
cupants and cargo should never exceed XXX kg
or XXX lbs” on your vehicle’s placard.
The vehicle placard also shows seating capacity
of your vehicle.
The total load capacity includes the total weight
of driver and all passengers and their belong-
ings, any cargo, any optional equipment such as
a trailer hitch, roof rack or bike carrier, etc., and
the tongue load of a trailer. Therefore cargo ca- pacity can be calculated by the following method.
Cargo capacity = Load limit – (total weight of oc-
cupants + total weight of optional equipment +
tongue load of a trailer (if applicable))
For towing capacity information and weight lim-
its, refer to “Trailer towing” in Chapter 8. T
Calculating total and load capacities vary-
ing seating configurations
Calculate the available load capacity as shown in
the following examples:
Example 1A
UGD504BA

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Vehicle capacity weight of the vehicle is 900 lbs
(408 kg), which is indicated on the vehicle plac-
ard with the statement “The combined weight of
occupants and cargo should never exceed 900
lbs or 408 kg”.
For example, if the vehicle has one occupant
weighing 154 lbs (70 kg) plus cargo weighing
662 lbs (300 kg).
1. Calculate the total weight.
2. Calculate the available load capacity by sub-
tracting the total weight from the vehicle capacity
weight of 900 lbs (408 kg).
3. The result of step 2 shows that a further 84 lbs
(38 kg) of cargo can be carried.
Example 1B
For example, if a person weighing 176 lbs (80
kg) now enters the same vehicle (bringing the
Total weight = 154 lbs (70 kg) + 662 lbs (300 kg) =
816 lbs (370 kg)(Occupant) (Cargo)
Available Load Capacity = 900 lbs (408 kg) – 816 lbs (370 kg) =
84 lbs (38 kg) (Vehicle
capacity weight) (Total weight)
HG8014BA

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number of occupants to two), the calculations
are as follows:
1. Calculate the total weight.
2. Calculate the available load capacity.
3. The total weight now exceeds the capacity
weight by 92 lbs (42 kg), so the cargo weight
must be reduced by 92 lbs (42 kg) or more. Example 2A
Vehicle capacity weight of the vehicle is 900 lbs
(408 kg), which is indicated on the vehicle plac-
ard with the statement “The combined weight of
occupants and cargo should never exceed 408
kg or 900 lbs”.
For example, the vehicle has one occupant
weighing 165 lbs (75 kg) plus cargo weighing
375 lbs (170 kg). In addition, the vehicle is fitted
with a trailer hitch weighing 22 lbs (10 kg), to
which is attached a trailer weighing 1,764 lbs
(800 kg). 10% of the trailer weight is applied to
Total weight = 154 lbs (70 kg) + 176 lbs (80 kg) + 662 lbs (300 kg) =
992 lbs (450 kg) (Occupant)
(Cargo)
Available Load Capacity
= 900 lbs (408 kg) – 992 lbs (450 kg) = –92 lbs (–42 kg) (Vehicle
capacity weight) (Total weight)
UGD505BA

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the trailer tongue (i.e. Tongue load = 176 lbs (80 kg)).
1. Calculate the total weight.
2. Calculate the available load capacity.
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 occu-
pants 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 fol-
lows:
1. Calculate the total weight.
Total weight
= 165 lbs (75 kg) + 375 lbs (170 kg)
+ 22 lbs (10 kg) + 176 lbs (80 kg) =
738 lbs (335 kg)(Occupant) (Cargo)
(Trailer hitch) (Tongue load)
Available Load Capacity
= 900 lbs (408 kg) – 738 lbs (335 kg) =
162 lbs (73 kg) (Vehicle
capacity weight) (Total weight)
UGD506BA

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2. Calculate the available load capacity.
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 capacities
The sum of four tires’ maximum load ratings
must exceed the maximum loaded vehicle
weight (“GVWR”). In addition, sum of the maxi-
mum 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’s GAWR are shown on the
vehicle certification label affixed to the driver’s
door.
The GVWR and front and rear GAWRs are de-
termined by not only the maximum load rating of
tires but also loaded capacities of the vehicle’s
suspension, axles and other body parts.
Therefore, this means that the vehicle cannot
necessarily be loaded up to the tire’s maximum
load rating on the tire sidewall.
Total weight = 165 lbs (75 kg) + 143 lbs (65 kg) + 40 lbs (18 kg)
+ 11 lbs (5 kg) + 375 lbs (170 kg) + 22 lbs (10 kg) + 176 lbs (80 kg) = 932 lbs (423 kg) (Occupant)
(Cargo)
(Trailer hitch)
(Child restraint)
(Tongue load)
Available Load Capacity
= 900 lbs (408 kg) – 932 lbs (423 kg) = –32 lbs (–15 kg) (Vehicle
capacity weight) (Total weight)