towing SUBARU IMPREZA 2007 3.G User Guide

Model ConditionsMaximum
total trailer
weight
MT models When towing a
trailer without brakes. 1,000 lbs
(453 kg)
When towing a
trailer with brakes. 2,000 lbs
(906 kg)
AT models When towing a
trailer without brakes. 1,000 lbs
(453 kg)
When towing a
trailer with brakes. 2,000 lbs
(906 kg)
When towing a
trailer on a long
uphill grade con-
tinuously for over
5 miles (8 km) with
an outside tem-
perature of 104 8F
(40 8C) or above. 1,000 lbs
(453 kg) !
Gross Vehicle Weight (GVW) and
Gross Vehicle Weight Rating(GVWR)
Gross Vehicle Weight
The Gross Vehicle Weight (GVW) must
never exceed the Gross Vehicle Weight
Rating (GVWR).
Gross Vehicle Weight (GVW) is the
combined total of the weight of the vehicle,
driver, passengers, luggage, trailer hitch,
trailer tongue load and any other optional
equipment installed on your vehicle.
Therefore, the GVW changes depending
on the situation. Determine the GVW each
time before going on a trip by putting your
vehicle and trailer on a vehicle scale.
Certification plate
GVWR is shown on the certification plate
located on the driver ’s side doorjamb of
your vehicle. Driving tips
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1) Jack
2) Bathroom scale
The tongue load can be weighed with a
bathroom scale as shown in the illustra-
tion. When weighing the tongue load, be
sure to position the towing coupler at the
height at which it would be during actual
towing, using a jack as shown.F: Front of vehicle
The tongue load can be adjusted by
proper distribution 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 rightsides.
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, especially during braking or
when vehicle speed is reduced dur-
ing 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 commer-
cial trailer hitch. If you do, danger-
ous exhaust gas, water or mud may
enter the passenger compartment
through the drilled hole. Exhaust
gas contains carbon 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 of strength of your
vehicle and cause corrosion around
the drilled hole.
CAUTION
. Do not modify the vehicle ex- Driving tips
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8-24Driving tips
haust system, brake system, or
other systems when installing a
hitch or other trailer towingequipment.
. Do not use axle-mounted hitches
as they can cause damage to the
axle housing, wheel bearings,
wheels or tires.
! WAGON including OUTBACKSPORT
The use of a genuine SUBARU trailer
hitch is recommended. A genuine
SUBARU hitch is available from your
SUBARU dealer.
If use of a non-genuine hitch is unavoid-
able, be sure the hitch is suited to your
vehicle and trailer. Consult with a profes-
sional hitch supplier to assist you in
choosing an appropriate hitch for your
vehicle. Be sure to follow all of the hitchmanufacturer ’s instructions for installation
and use.
Never use a hitch that mounts only to the
rear bumper. The bumper is not designed
to handle that type of load.
For all types of hitches, regularly check
that the hitch mounting bolts and nuts aretight. !
SEDAN
SUBARU does not offer accessory trailer
hitches. 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
instructions for installation and use.
Never use a hitch that mounts only to the
rear bumper. 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 system.
Electric brakes or surge brakes are
recommended, and must be installed
properly. Check that your trailer ’s brakes
conform with Federal, state/province and/
or other applicable regulations. YourSUBARU ’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 in-
formation about the trailer ’s brake system.WARNING
. Adequate size trailer brakes are
required when the trailer and its
cargo exceed 1,000 lbs (453 kg)
total weight.
. Do not directly connect your
trailer ’s hydraulic brake system
to the hydraulic brake system in
your vehicle. Direct connection
would cause the vehicle ’s brake
performance to deteriorate and
could lead to an accident.
! Trailer safety chains
In case the trailer hitch connector or hitch
ball should break or become discon-
nected, the trailer could get loose and
create a traffic safety hazard.
For safety, always connect the towing
vehicle and trailer with trailer safety
chains. Pass the chains crossing each
other under the trailer tongue to prevent
the trailer from dropping onto the ground
in case the trailer tongue should discon-
nect from the hitch ball. Allow sufficient
slack in the chains taking tight-turn situa-
tions into account; however, be careful not
to let them drag on the ground.
For more information about the safety
chain connection, refer to the instructions

for your hitch and trailer.
WARNING
Always use safety chains between
your vehicle and the trailer. Towing a
trailer without safety chains could
create a traffic safety hazard if the
trailer separates from the hitch due
to coupling damage or hitch balldamage.
! Side mirrors
After hitching a trailer to your vehicle,
check that the standard side mirrors
provide a good rearward field of view
without significant blind spots. If significant
blind spots occur with the vehicle ’s stan-
dard side mirrors, use towing mirrors that conform with Federal, state/province and/
or other applicable regulations. !
Trailer lights
Connection of trailer lights to your vehi- cle ’s electrical system requires modifica-
tions to the vehicle ’s lighting circuit to
increase its capacity and accommodate
wiring 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.
CAUTION
Direct splicing or other improper
connection of trailer lights may
damage your vehicle ’s electrical
system and cause a malfunction of
your vehicle ’s lighting system.
! Tires
Make sure that all the tires on your vehicle
are properly inflated to the pressure
specified on the tire placard located on
the left center pillar of your vehicle.
Trailer tire condition, size, load rating and
proper inflation 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.
WARNING
Never tow a trailer when the tem-
porary spare tire is used. The tem-
porary spare tire is not designed 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
CAUTION
. Never exceed 45 mph (72 km/h)
when towing a trailer in hilly
country on hot days.
. When towing a trailer, steering,
stability, stopping distance and
braking performance will be dif-
ferent from normal operation. For Driving tips
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8-26Driving tips
safety’s sake, you should employ
extra caution when towing a
trailer and you should never
speed. You should also keep the
following tips in mind:
! Before starting out on a trip
. Check that the vehicle and vehicle-to-
hitch mounting are in good condition. If
any problems are apparent, do not tow the
trailer. . Check that the vehicle sits horizontally
with the trailer 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
confirm that the load and its distribution
are acceptable. . Check that the tire pressures are
correct.. 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 con-
nected properly and trailer ’s brake
lights illuminate when the vehicle ’s
brake pedal is pressed, and that the trailer ’s turn signal lights flash when
the vehicle ’s turn signal lever is oper-
ated. –
the safety chains are connected
properly. – all cargo in the trailer is secured
safely in position.– the side mirrors provide a good
rearward field of view without a sig-
nificant blind spot.
. 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. ! Driving with a trailer
. 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 ofcontrol. . Avoid abrupt starts and sudden accel-
erations. If your vehicle has a manual
transmission, always start out in first gear
and release the clutch at moderate engine revolution. . Avoid uneven steering, sharp turns and
rapid lane changes.. Slow down before turning. Make a
longer than normal 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 yourvehicle. .
Crosswinds will adversely affect the
handling of your vehicle and trailer, caus-
ing sway. Crosswinds can be due to
weather conditions or the passing of large
trucks or buses. If swaying occurs, firmly
grip the steering wheel and slow down
immediately but gradually. . When passing other vehicles, consid-
erable distance is required because of the
added weight and length caused by
attaching the trailer to your vehicle.
1) Left turn
2) Right turn
. Backing up with a trailer is difficult and
takes practice. When backing up with a
trailer, never accelerate or steer rapidly.
When turning back, grip the bottom of the
steering wheel with one hand and turn it to
the left for a left turn, and turn it to the right

for a right turn. .If the ABS warning light illuminates
while the vehicle is in motion, stop towing
the trailer and have repairs performed
immediately by the nearest SUBARU
dealer. ! Driving on grades
. Before going down a steep hill, slow
down and shift into lower gear (if neces-
sary, use 1st gear) in order to utilize the
engine braking effect and prevent over-
heating of your vehicle ’s brakes. Do not
make sudden downshifts. . When driving uphill in hot weather, the
air conditioner may turn off automatically
to protect the engine from overheating. . When driving uphill in hot weather, pay
attention to the water temperature gauge
pointer (for all vehicles) and AT OIL TEMP
warning light (for AT vehicles) since the
engine and transmission are relatively
prone to overheating under these condi-
tions. If the water temperature gauge
pointer approaches the OVERHEAT zone
or the AT OIL TEMP warning light illumi-
nates, immediately switch off the air
conditioner and stop the vehicle at the
nearest safe place. Refer to the “Engine
overheating ”section in chapter 9, and
“ Warning and indicator lights ”section in
chapter 3. .
If your vehicle has an automatic trans-
mission, avoid using the accelerator pedal
to stay stationary on an uphill slope
instead of using the parking brake or foot
brake. That may cause the transmission
fluid to overheat. . If your vehicle has an automatic trans-
mission, place the selector lever as follows:
Uphill slopes: “D ”position
Downhill slopes: A low-speed gear posi-
tion to use engine braking ! Parking on a grade
Always block the wheels under both
vehicle and trailer when parking. Apply
the parking brake firmly. You should not
park on a hill or slope. But if parking on a
hill or slope cannot be avoided, you
should take the following steps:
1. Apply the brakes and hold the pedal down.
2. Have someone place wheel blocks
under both the vehicle and trailer wheels.
3. When the wheel blocks are in place,
release the regular brakes slowly until the
blocks absorb the load.
4. Apply the regular brakes and then
apply the parking brake; slowly release
the regular brakes.
5. Shift into 1st or reverse gear (manual transmission) or
“P ” (automatic transmis-
sion) and shut off the engine. Driving tips
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8-28Driving tips
STI front lip spoiler (if equipped)
CAUTION
. Your vehicle ’s ground clearance
and approach angle are de-
creased due to the addition of
the front lip spoiler. Please ex-
ercise caution when parking the
vehicle, driving over speed
bumps, traveling up or down
steep inclines, or when under-
taking any other maneuver that
may involve the front end of thevehicle.
. When towing a vehicle or loading
it onto a flatbed tow truck, extra
precautions must be taken to
ensure proper clearance between
the front lip spoiler and the
loading ramp or towing appara-
tus. Failure to allow for proper
clearance in these situations may
result in damage to the front lip
spoiler that is not covered under
warranty.
The front lip spoiler protrudes outward
approximately one half inch beyond the
standard edge of the front bumper. In addition it decreases the ground clear-
ance of the front bumper by approximately
2.5 inches. Extra care must be taken with
vehicles equipped with the front lip spoiler
to avoid damage to that accessory.

If you park your vehicle in case of anemergency ........................................................ 9-2
Temporary spare tire ........................................... 9-2
Flat tires ............................................................... 9-4
Changing a flat tire .............................................. 9-4
Jump starting ...................................................... 9-8
How to jump start ................................................ 9-9
Engine overheating ............................................ 9-11
If steam is coming from the engine compartment .................................................... 9-11 If no steam is coming from the engine
compartment ................................................... 9-11
Towing ................................................................ 9-11
Towing and tie-down hooks. ............................... 9-12
Using a flat-bed truck. ........................................ 9-13
Towing with all wheels on the ground ................. 9-14
Rear gate –if the rear gate cannot be
unlocked .......................................................... 9-14
Moonroof –if the moonroof cannot be
closed .............................................................. 9-15
Maintenance tools ............................................. 9-16
Jack and jack handle ......................................... 9-16
In case of emergency
9

1) Tread wear indicator bar
2) Indicator location mark
. When the wear indicator appears on
the tread, replace the tire. . The temporary spare tire must be used
only on a rear wheel. If a front wheel tire
gets punctured, replace the wheel with a
rear wheel and install the temporary spare
tire in place of the removed rear wheel.1) Spare fuse
2) FWD connector
NOTE
Before driving your vehicle (if your
vehicle is AWD with automatic trans-
mission, except Turbo models) with the
temporary spare tire, put a spare fuse
inside the FWD connector in the main
fuse box located in the engine com-
partment and confirm that the All-
Wheel Drive warning light “AWD ”in
the combination meter comes on. The
All-Wheel Drive capability of the vehi-
cle has now deactivated. After re-
installing the conventional tire, remove
the spare fuse from the FWD connector
in order to reactivate All-Wheel Drive.
WARNING
Never tow a trailer when the tem-
porary spare tire is used. The tem-
porary spare tire is not designed 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
and may lead to an accident.
CAUTION
Never use any temporary spare tire
other than the original. Using other
sizes may result in severe mechan-
ical damage to the drive train of yourvehicle. In case of emergency
9-3

Engine overheating
WARNING
Never attempt to remove the radia-
tor cap until the engine has been
shut off and has fully cooled down.
When the engine is hot, the coolant
is under pressure. Removing the
cap while the engine is still hot
could release a spray of boiling hot
coolant, which could burn you very
seriously.
If the engine overheats, safely pull off the
road and stop the vehicle in a safe place. & If steam is coming from the
engine compartment
Turn off the engine and get everyone
away from the vehicle until it cools down. & If no steam is coming from
the engine compartment
1. Keep the engine running at idling speed.
2. Open the hood to ventilate the engine compartment.
Confirm that the cooling fan is turning. If
the fan is not turning, immediately turn off the engine and contact your authorized
dealer for repair.
3. After the engine coolant temperature
has dropped, turn off the engine.
If the temperature gauge stays at the
overheated zone, turn off the engine.
4. After the engine has fully cooled down,
check the coolant level in the reservetank.
If the coolant level is below the
“LOW ”
mark, add coolant up to the “FULL ”mark.
5. If there is no coolant in the reserve
tank, add coolant to the reserve tank.
Then remove the radiator cap and fill the
radiator with coolant.
If you remove the radiator cap from a hot
radiator, first wrap a thick cloth around the
radiator cap, then turn the cap counter-
clockwise slowly without pressing down
until it stops. Release the pressure from
the radiator. After the pressure has been
fully released, remove the cap by pressing
down and turning it. Towing
If towing is necessary, it is best done by
your SUBARU dealer or a commercial
towing service. Observe the following
procedures for safety.
WARNING
Never tow AWD vehicles (both AT
and MT) with the front wheels raised
off the ground while the rear wheels
are on the ground, or with the rear
wheels raised off the ground while
the front wheels are on the ground.
This will cause the vehicle to spin
away due to the operation or dete-
rioration of the center differential. In case of emergency
9-11
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