2003 SUBARU IMPREZA WRX wheel

Driving tips
8-10
it more prone to tip over. If you must rock the vehicle to free it from sand or
mud, depress the accelerator pedal slightly and
move the selector lever back and forth between “D”
and “R” repeatedly. Do not race the engine. For the
best possible traction, avoid spinning the wheels
when trying to free the vehicle.
When the road surface is extremely slippery, you
can obtain better traction by starting the vehicle withthe transmission in 2nd than 1st (both for MT and
AT). Never equip your vehicle with tires larger than
those specified in this manual. Frequent driving of an AWD vehicle under hard-
driving conditions such as rough roads or off roads
will necessitate more frequent replacement of engine
oil, brake fluid and transmission oil than that specified
in the maintenance schedule described in the “War -
ranty and Maintenance Booklet ”.
Remember that damage done to your Subaru while
operating it off-road and not using common sense
precautions such as those listed above is not eligi-ble for warranty coverage. Winter driving

Operation during cold weather
Carry some emergency equipment, such as tire
chains, a window scraper, a bag of sand, flares, a small shovel, and jumper cables.
Check the battery and cables. Cold temperatures
reduce battery capacity. The battery must be in
good condition to provide enough power for cold
winter starts.
Use an engine oil of proper grade and viscosity for

Driving tips
8-12
WARNING
Snow can trap dangerous exhaust gases under your vehicle. Keep snow clear of the
exhaust pipe and from around your vehicle ifyou park the vehicle in snow with the engine running.
Refueling in cold weather
To help prevent moisture from forming in the fuel
system and the risk of its freezing, use of an anti-
freeze additive in the fuel tank is recommended dur-
ing cold weather.
Use only additives that are specifically designed for
this purpose. When an antifreeze additive is used,
its effect lasts longer if the tank is refilled whenever
the fuel level reaches half empty. If your SUBARU is not going to be used for an ex-
tended period, it is best to have the fuel tank filled to
capacity. Driving on snowy and icy roads
To prevent skidding and slipping, avoid sudden braking, abrupt acceleration, high-speed driving,
and sharp turning when driving on snowy or icy roads.
Always maintain ample distance between your ve-
hicle and the vehicle ahead of you to avoid the needfor sudden braking.
To supplement the foot brake, use the engine brake
effectively to control the vehicle speed. (Shift into a
lower gear when necessary.)
Avoid shifting down abruptly. Such behavior cancause the wheels to lock, possibly leading to loss of
vehicle control.
An anti-lock brake system (ABS) e
nhances your
vehicle’ s braking performance on snowy and icy
roads. Refer to the “ABS (Anti-Lock Brake System) ”
section in chapter 7 for information on braking on
slippery surfaces. NOTE The optional 17-inch tires for the WRX are sum- mer tires. Compared with winter and all-season tires, summer tires give significantly less grip on
snowy and icy road surfaces. Avoid driving onsnowy and icy road surface with summer tires.

Driving tips
8-14
gerous and lead to loss of vehicle control. You must install four winter tires that are of
the same size, construction, brand, and loadrange. Mixing other sizes or constructions
may result in severe mechanical damage to
the drive train of your vehicle and may affect
ride, handling, braking and speedometer/ odometer calibration. It also may be danger-ous and lead to loss of vehicle control. Do not use a combination of radial, belted
bias or bias tires since it may cause danger-ous handling characteristics and lead to an accident.
Your vehicle is equipped with “all season tires ” as
original equipment, which are designed to provide
an adequate measure of traction, handling and
braking performance in year-round driving. In winter,
it may be possible to enhance performance through
use of tires designed specifically for winter drivingconditions.
The optional 17-inch tires for the WRX are summer
tires. Compared with winter and all-season tires,
summer tires give significantly less grip on snowy
and icy road surfaces. Therefore, use of winter tires
is strongly recommended when driving with such
road conditions. When you choose to install winter tires on your ve-
hicle, be sure to use the correct tire size and type.
You must install four winter tires that are of the samesize, construction, brand and load range and you
should never mix radial, belted bias or bias tires
since this may result in dangerous handling charac-
teristics. When you choose a tire, make sure that
there is enough clearance between the tire and ve-
hicle body.
Remember to drive with care at all times regardless
of the type of tires on your vehicle.
Tire chains
Driving on snowy grades or icy roads may require
the use of tire chains, in which case put the chains
on the front wheels only. Use only SAE class S type
chains that are of the correct size for your tires so asnot to damage the vehicle body or suspension.
When driving with tire chains, drive at speeds below 19 mph (30 km/h).
When a temporary spare tire is on a front wheel, re-
place the temporary spare tire with the rear tire onthe same side of the vehicle, and then fit chains on
the front tires.
Always use the utmost care when driving with tire

Driving tips
8-15
– CONTINUED –
chains — overconfidence because you are driving
with tire chains could easily lead to a serious acci- dent.
CAUTION
Tire chains cannot be fitted with optional
215/45 R17 tires for the WRX because of lack
of clearance between the tire and body.
Rocking the vehicle
If you must rock the vehicle to free it from snow,
sand, or mud, depress the accelerator pedal slightly
and move the selector lever back and forth between“D” and “R” repeatedly. Do not race the engine. For
the best possible traction, avoid spinning the wheels
when trying to free the vehicle.
When the road surface is extremely slippery, you
can obtain better traction by starting the vehicle with the transmission in 2nd than 1st (both for MT and
AT). Refer to the “Automatic transmission ” section in
chapter 7 for information on holding the transmis- sion in 2nd position. Loading your vehicle
WARNING

Never allow passengers to ride on the
folded rear seatback, in the trunk or in the car-
go area. Doing so may result in serious injury. Never stack luggage or other cargo higher
than the top of the seatback because it could tumble forward and injure passengers in theevent of a sudden stop or accident. Keep lug-
gage or cargo low, as close to the floor aspossible.

Driving tips
8-17
– CONTINUED –
The load capacity of your vehicle is determined by
weight, not by available cargo space. The maximum
load you can carry in your vehicle is shown as the
Vehicle Capacity Weight on the tire information label
attached to the driver ’s side door jamb. It includes
the total weight of driver and all passengers andtheir belongings, any optional equipment such as a
trailer hitch, roof rack or bike carrier, etc., and the
tongue load of a trailer.
The tire information label also shows recommended
tire inflation pressure under full loading and trailer
towing conditions. Adjust tire inflation pressures
according to the loading conditions. For the tire inflation pressures, refer to the
“Tires and wheel ”
section in Chapter 11. GVWR and GAWR (Gross Vehicle
Weight Rating and Gross Axle WeightRating)
The certification plate attached to the driver ’s side
door jamb shows GVWR (Gross Vehicle Weight Rat-
ing) and GAWR (Gross Axle Weight Rating).
The GVW (Gross Vehicle Weight) must never ex- ceed the GVWR. GVW is the combined total of
weight of the vehicle, fuel, driver, all passengers,
luggage, any optional equipment and trailer tongue

Driving tips
8-27
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Trailer towing
Your car is designed and intended to be used pri-
marily as a passenger-carrying vehicle. Towing a
trailer puts additional loads on your car ’s engine, dri-
vetrain, brakes, tires and suspension and has an
adverse effect on fuel economy.
If you do decide to tow a trailer, your safety and sat-
isfaction depend upon proper use of correct equip-
ment and cautious operation of your vehicle. Seekthe advice of your SUBARU dealer to assist you in
purchasing a hitch and other necessary towing
equipment appropriate for your vehicle. In addition,
be sure to follow the instructions on correct installa-
tion and use provided by the trailer and other towing
equipment manufacturers.
SUBARU assumes no responsibility for injuries or
vehicle damage that result from trailer towing equip-
ment, or from any errors or omissions in the instruc- tions accompanying such equipment or for your fail-
ure to follow the proper instructions. Warranties and maintenance
SUBARU warranties do not apply to vehicle damage or malfunction caused by trailer towing. If you use
your vehicle to tow a trailer, more frequent mainte-
nance will be required due to the additional load. (Refer to
“Maintenance schedule under severe driv-
ing conditions ” in the “Warranty and Maintenance
Booklet”.)
Under no circumstances should a trailer be towedwith a new vehicle or a vehicle with any new power-
train component (engine, transmission, differential, wheel bearings, etc.) for the first 1,000 miles (1,600 km) of driving. Maximum load limits
WARNING
Never exceed the maximum load limits ex-
plained below. Exceeding the maximum loadlimits could cause personal injury and/or ve-hicle damage.
CAUTION
Adequate size trailer brakes are required
when the trailer and its cargo exceed 1,000 lbs (453 kg) total weight. Before towing a trailer, check the trailer total
weight, GVW, GAWs and tongue load. Make sure the load and its distribution in your
vehicle and trailer are acceptable.

Driving tips
8-32
F) Front of vehicle
The tongue load can be adjusted by proper distribu-
tion of the load in the trailer. Never load the trailer
with more weight in the back than in the front;
approximately 60 percent of the trailer load should
be in the front and approximately 40 percent in the
rear. Also, distribute the load as evenly as possible on both the left and right sides.
Be sure that all cargo is firmly secured to prevent a
change in weight distribution while driving.
WARNING
If the trailer is loaded with more weight in the back of trailer ’s axle than in the front, the load
is taken off the rear axle of the towing vehicle.This may cause the rear wheels to skid, espe-
cially during braking or when vehicle speed is reduced during cornering, resulting in over-
steer, spin out and/or jackknifing.
Trailer hitches
Choose a proper hitch for your vehicle and trailer.
WARNING
Never drill the frame or under-body of your
vehicle to install a commercial trailer hitch. If you do, dangerous exhaust gas, water or mudmay enter the passenger compartment
through the drilled hole. Exhaust gas containscarbon monoxide, a colorless and odorless
gas which is dangerous, or even lethal, if
inhaled. Also, drilling the frame or under-body of your vehicle could cause deterioration ofstrength of your vehicle and cause corrosionaround the drilled hole.

Driving tips
8-33
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CAUTION
Do not modify the vehicle exhaust system,
brake system, or other systems when instal- ling a hitch or other trailer towing equipment. Do not use axle-mounted hitches as they
can cause damage to the axle housing, wheelbearings, wheels or tires.
WAGON including OUTBACK SPORT
The use of a genuine SUBARU trailer hitch is recom-
mended. A genuine SUBARU hitch is available from
your SUBARU dealer.
If use of a non-genuine hitch is unavoidable, be sure
the hitch is suited to your vehicle and trailer. Consult
with a professional hitch supplier to assist you in
choosing an appropriate hitch for your vehicle. Be
sure to follow all of the hitch manufacturer ’s instruc-
tions for installation and use.
Never use a hitch that mounts only to the rear bum-
per. The bumper is not designed to handle that typeof load.
For all types of hitches, regularly check that the
hitch mounting bolts and nuts are tight.
SEDAN
SUBARU does not offer accessory trailer hitches. Consult with a professional hitch supplier to assist
you in choosing an appropriate hitch for your ve-
hicle. Be sure to follow all of the hitch manufacturer
’s
instructions for installation and use.
Never use a hitch that mounts only to the rear bum-
per. The bumper is not designed to handle that type of load. Regularly check that the hitch mounting bolts and
nuts are tight.
Connecting a trailer
Trailer brakes
If your trailer ’s total weight (trailer weight plus its
cargo weight) exceeds 1,000 lbs (453 kg), the trailer
is required to be equipped with its own brake sys-
tem. Electric brakes or surge brakes are recom-
mended, and must be installed properly. Check thatyour trailer ’s brakes conform with Federal, state/
province and/or other applicable regulations. Your
SUBARU’ s brake system is not designed to be
tapped into the trailer ’s hydraulic brake system.
Please ask your SUBARU dealer and professional
trailer supplier for more information about the trail-er’ s brake system.