2005 SUBARU IMPREZA WRX Owners Manual

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Consumer information and Reporting safety defects
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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Consumer information and Reporting safety defects
– CONTINUED –
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)

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Consumer information and Reporting safety defects
„
Adverse safety consequences of over-
loading on handling and stopping and on tires
Overloading could affect vehicle handling, stop-
ping distance, vehicle and tire as shown below.
This could lead to an accident and possibly result
in severe personal injury. y Vehicle stability will deteriorate.
y Heavy and/or high-mounted loads could in-
crease the risk of rollover.y Stopping distance will increase.
y Brakes could overheat and fail.
y Suspension, bearings, axles and other body
parts could break or experience accelerated
wear that will shorten vehicle life. y Tires could fail.
y Tread separation could occur.
y Tire could separate from its rim.
„ Steps for Determining Correct Load
Limit
1. Locate the statement “The combined 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 luggage load capacity. For
example, if the “XXX” amount equals 1,400 lbs
(635 kg) and there will be five- 150 lbs (68 kg)
passengers in your vehicle, the amount of avail-
able cargo and luggage load capacity is 650 lbs.
(1,400 – 750 (5 x 150) = 650 lbs.)
5. Determine the combined weight of luggage
and cargo being loaded on the vehicle. That
weight may not safely exceed the available car-
go 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 vehi-
cle. Consult this manual to determine how this
reduces the available cargo and luggage load
capacity of your vehicle.

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– 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

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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.

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– CONTINUED –
Reporting safety defects (USA)
If you believe that your vehicle has a defect
which could cause a crash or could cause in-
jury or death, you should immediately inform
the National Highway Traffic Safety Admin-
istration (NHTSA) in addition to notifying
Subaru of America, Inc.
If NHTSA receives similar complaints, it may
open an investigation, and if it finds that a
safety defect exists in a group of vehicles, it
may order a recall and remedy campaign.
However, NHTSA cannot become involved
in individual problems between you, your
dealer, or Subaru of America, Inc. To con-
tact NHTSA, you may either call the Auto
Safety Hotline toll-free at 1-800-424-9393
(or 366-0123 in the Washington D.C. area)
or write to: NHTSA, U.S. Department of
Transportation, Washington, D.C. 20590.
You can also obtain other information about
motor vehicle safety from the Hotline.

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Index