ECU SUBARU IMPREZA 2005 2.G Workshop Manual

8-37
Driving tips
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use towing mirrors that conform with Federal, state/
province and/or other applicable regulations. TTrailer lights
Connection of trailer lights to your vehicle’s electrical
system requires modifications to the vehicle’s lighting
circuit to increase its capacity and accommodate wir-
ing changes. To ensure the trailer lights are connected
properly, please consult your SUBARU dealer. Check
for proper operation of the turn signals, the brake
lights and parking lights each time you hitch up.
Direct splicing or other improper connection of
trailer lights may damage your vehicle’s electri-
cal system and cause a malfunction of your ve-
hicle’s lighting system.
T Tires
Make sure that all the tires on your vehicle are properly
inflated to the pressure specified on the tire placard lo-
cated on the left center pillar of your vehicle.
Trailer tire condition, size, load rating and proper infla-
tion pressure should be in accordance with the trailer
manufacturer’s specifications. In the event your vehicle gets a flat tire when towing a
trailer, ask a commercial road service to repair the flat
tire.
If you carry a regular size spare tire in your vehicle or
trailer as a precaution against getting a flat tire, be
sure that the spare tire is firmly secured.
Never tow a trailer when the temporary spare
tire is used. The temporary spare tire is not de-
signed to sustain the towing load. Use of the
temporary spare tire when towing can result in
failure of the spare tire and/or less stability of
the vehicle.
„ Trailer towing tips
yNever exceed 45 mph (72 km/h) when towing
a trailer in hilly country on hot days. y When towing a trailer, steering, stability,
stopping distance and braking performance
will be different from normal operation. For
safety’s sake, you should employ extra caution

8-38
Driving tips
when towing a trailer and you should never
speed. You should also keep the following tips
in mind:
T Before starting out on a trip
y Check that the vehicle and vehicle-to-hitch mount-
ing are in good condition. If any problems are appar-
ent, do not tow the trailer. y Check that the vehicle sits horizontally with the trail-
er attached. If the vehicle is tipped sharply up at the
front and down at the rear, check the total trailer
weight, GVW, GAWs and tongue load again, then con-
firm that the load and its distribution are acceptable.y Check that the tire pressures are correct.
y Check that the vehicle and trailer are connected
properly. Confirm that – the trailer tongue is connected properly to the
hitch ball.
– the trailer lights connector is connected properly
and trailer’s brake lights illuminate when the vehi-
cle’s brake pedal is pressed, and that the trailer’s
turn signal lights flash when the vehicle’s turn signal
lever is operated.
– the safety chains are connected properly.
– all cargo in the trailer is secured safety in position.
– the side mirrors provide a good rearward field of view without a significant blind spot.
y Sufficient time should be taken to learn the “feel” of
the vehicle/trailer combination before starting out on a
trip. In an area free of traffic, practice turning, stopping
and backing up. T Driving with a trailer
y You should allow for considerably more stopping
distance when towing a trailer. Avoid sudden braking
because it may result in skidding or jackknifing and
loss of control. y Avoid abrupt starts and sudden accelerations. If
your vehicle has a manual transmission, always start
out in first gear and release the clutch at moderate en-
gine revolution. y Avoid uneven steering, sharp turns and rapid lane
changes. y Slow down before turning. Make a longer than nor-
mal turning radius because the trailer wheels will be
closer than the vehicle wheels to the inside of the turn.
In a tight turn, the trailer could hit your vehicle. y Crosswinds will adversely affect the handling of
your vehicle and trailer, causing sway. Crosswinds
can be due to weather conditions or the passing of
large tracks or buses. If swaying occurs, firmly grip the
steering wheel and slow down immediately but gradu-
ally. y When passing other vehicles, considerable dis-

9-5
In case of emergency
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Flat tires
If you have a flat tire while driving, never brake sud-
denly; keep driving straight ahead while gradually re-
ducing speed. Then slowly pull off the road to a safe
place. „Changing a flat tire
yDo not jack up the vehicle on an incline or a
loose road surface. The jack can come out of
the jacking point or sink into the ground and
this can result in a severe accident.y Use only the jack provided with your vehicle.
The jack supplied with the vehicle is designed
only for changing a tire. Never get under the ve-
hicle while supporting the vehicle with this jack. y Always turn the engine off before raising the
flat tire off the ground using the jack. Never
swing or push the vehicle supported with the
jack. The jack can come out of the jacking point
due to a jolt and this can result in a severe acci-
dent. 1. Park on a hard, level surface, whenever possible,
then stop the engine.
2. Set the parking brake securely and shift a manual
transmission vehicle in reverse or an automatic trans-
mission vehicle in the “P” (Park) position.
3. Turn on the hazard warning flasher and have ev-
eryone get out of the vehicle.
4. Put wheel blocks at the front and rear of the tire di-
agonally opposite the flat tire.
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9-12
In case of emergency
13.Use the wheel nut wrench to securely tighten the
wheel nuts to the specified torque, following the tight-
ening order in the illustration.
The torque for tightening the nuts is 58 to 72 lbf·ft (80
to 100 N·m, 8 to 10 kgf·m). This torque is equivalent to
applying about 88 to 110 lbs (40 to 50 kg) at the top of
the wheel nut wrench. Never use your foot on the
wheel nut wrench or a pipe extension on the wrench
because you may exceed the specified torque. Have
the wheel nut torque checked at the nearest automo-
tive service facility.
14.Store the flat tire in the spare tire compartment.
Put the spacer and tighten the attaching bolt firmly.
Also store the jack and wheel nut wrench in their stor-
age locations.
After placing the jack in its storage location, turn the
jackscrew clockwise by hand until it becomes too hard
to turn. Then, tighten it by an additional 1/4 – 1/3 of a
turn using a screwdriver or the jack handle. Unless the
jack is properly secured, it may rattle while the vehicleis moving.
Never place a tire or tire changing tools in the
passenger compartment after changing
wheels. In a sudden stop or collisions, loose
equipment could strike occupants and causeHS9014BA
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9-18
In case of emergency
terioration of the center differential.
„ Towing and tie-down hooks
The towing hooks should be used only in an emergen-
cy (e.g., to free a stuck vehicle from mud, sand or
snow).
Front towing hook:
1. Take out the towing hook, screwdriver and wheel
nut wrench from the on board tool bag.
2. Insert a flat-head screwdriver into the slot at point A
on the front passenger side fog light cover, then use it
to pry the cover upward. The tabs at point A on the fog light cover will come free of the bumper.
3. Pull the entire fog light cover toward you.
4. Screw the towing hook into the threaded hole until
its thread becomes invisible.
5. Tighten the towing hook securely using the wheel
nut wrench.
After towing, remove the towing hook from the vehicle
and stow it in the tool bag.
Fit the fog light cover on the bumper.
y
Do not use the towing hook except when tow-
ing your vehicle.
A
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9-20
In case of emergency
y
Use only the specified towing hook and tie-
down hook. Never use suspension parts or oth-
er body parts for towing or tie-down purposes. y Never use the tie-down hook on the under-
side of the vehicle closest to the muffler for
towing purposes.
„ Using a flat-bed truck
This is the best way to transport your vehicle. Use the
following procedures to ensure safe transportation. 1. Shift the selector lever into the “P” position for au-
tomatic transmission vehicles or “1st” for manual
transmission vehicles.
2. Pull up the parking brake lever firmly.
3. Secure the vehicle onto the carrier properly with
safety chains. Each safety chain should be equally
tightened and care must be taken not to pull the chains
so tightly that the suspension bottoms out.
If your vehicle has a front underspoiler and rear
underspoiler (both optional), be careful not to
scrape them when placing the vehicle on the
carrier and when removing the vehicle from the
carrier.
HG9023AA

11 - 7
Maintenance and service
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from the slot in the hood and return the prop to its re-
tainer.
2. Lower the hood until it approaches about 12 in (30
cm) from the closed position and let it drop.
After closing the hood, be sure the hood is securely
locked.
If this does not close the hood, release it from a slightly
higher position. Do not push the hood forcibly to close
it. It could deform the metal.
Always check that the hood is properly locked
before you start driving. If it is not, it might fly
open while the vehicle is moving and block
your view, which may cause an accident and
serious bodily injury.

11 - 1 4
Maintenance and service
2.5-liter non-turbo models
4. Drain out the engine oil by removing the drain plug
while the engine is still warm. The used oil should be
drained into an appropriate container and disposed of
properly.
Be careful not to burn yourself with hot engine
oil.
5. Wipe the seating surface of the drain plug with a
clean cloth and tighten it securely with a new sealing washer after the oil has completely drained out.
6. Remove under cover (for Turbo).
Turbo models
UGB057DA
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11 -2 1
Maintenance and service
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3. Loosen the radiator cap to drain the coolant from
the radiator. Then drain the coolant from the reserve
tank. Tighten the drain plug securely.
NOTE (Turbo model only)
The cap (without tabs) on top of the radiator does
not need to be removed. To add coolant, remove
the cap (with tabs) on the coolant tank on top of
the engine.
Never attempt to remove the radiator cap until
the engine has been shut off and has cooled
down completely. Since the coolant is under
pressure, you may suffer serious burns from a
spray of boiling hot coolant when the cap is re-
moved.
4. Install the under cover. Non-turbo models
1) Filler neck
2) Fill up to this level
1
2
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11 - 6 2
Maintenance and service
4. Align the claws of the plastic support with the
grooves in the blade rubber assembly, then slide the
blade rubber assembly into place.
Securely retain both ends of the rubber with the stop-
pers on the plastic support ends. If the rubber is not re-
tained properly, the wiper may scratch the rear win-
dow glass.
5. Install the wiper blade assembly to the wiper arm.
Make sure that it locks in place.
6. Hold the wiper arm by hand and slowly lower it in position.
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