2007 SUBARU TRIBECA trailer

8-18 Driving tips
required due to the additional load. (Refer
to “Maintenance schedule under severe
driving conditions” in the “Warranty and
Maintenance Booklet”.)
Under no circumstances should a trailer
be towed with a new vehicle or a vehicle
with any new powertrain component (en-
gine, transmission, differential, wheel
bearings, etc.) for the first 1,000 miles
(1,600 km) of driving. „Maximum load limits
TTotal trailer weight
Total trailer weight
The total trailer weight (trailer weight plus
its cargo load) must never exceed the
maximum weight shown in the following
table.
Never exceed the maximum load
limits explained in the following. Ex-
ceeding the maximum load limits
could cause personal injury and/or
vehicle damage. y Adequate size trailer brakes are
required when the trailer and its
cargo exceed 1,000 lbs (453 kg)
total weight.
yBefore 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.
800211

Driving tips 8-19
– CONTINUED –
Vehicle without cooling kit
Vehicle with cooling kit Conditions Maximum total trailer weight
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
temperature of 104 °F (40 °C) or above. 1,000 lbs (453 kg)
Conditions Maximum total trailer weight
When towing a trailer without brakes. 1,000 lbs (453 kg)
When towing a trailer with brakes. 3,500 lbs (1,587 kg)
When towing a trailer on a long uphill grade con-
tinuously for over 5 miles (8 km) with an outside
temperature of 104 °F (40 °C) or above. 1,750 lbs (794 kg)T
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 com-
bined 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.
GVWR is shown on the certification label
located on the driver’s door of your vehi-
800212

8-20 Driving tips
cle.
Certification label
T Gross Axle Weight (GAW) and
Gross Axle Weight Rating (GAWR)
Gross Axle Weight The total weight applied to each axle
(GAW) must never exceed the Gross Axle
Weight Rating (GAWR). The front and
rear GAWs can be adjusted by relocating
passengers and luggage inside the vehi-
cle. The front and rear GAWR are also
shown on the certification label.
Certification label
To check both GVWR and GAWR and to
confirm that the total weight and weight
distribution are within safe driving limits,
you should have your vehicle and trailer
weighed at a commercial weighing sta-
tion.
Be sure that all cargo is firmly secured to
prevent a change in weight distribution
while driving. T
Tongue load
Tongue load
Ensure that the trailer tongue load is from
8 to 11 percent of the total trailer weight
and does not exceed the appropriate one
of the following maximum values:
800203
800213
800203If 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.
800214

Driving tips 8-21
– CONTINUED –
Vehicle without cooling kit: 200 lbs (90 kg)
Vehicle with cooling kit: 350 lbs (158 kg)
1) Jack
2) Bathroom scale
The tongue load can be weighed with a
bathroom scale as shown in the following
illustration. When weighing the tongue
load, be sure to position the towing cou-
pler at the height at which it would be dur-
ing actual towing, using a jack as shown. F: Front
The tongue load can be adjusted by prop-
er 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 even-
ly 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. „
Trailer hitches
Choose a proper hitch for your vehicle and
trailer.
1 2
800215
F
60% 40% 50%
50%
800216
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 ve-
hicle and cause corrosion around
the drilled hole. y
Do not modify the vehicle exhaust
system, brake system, or other
systems when installing a hitch or
other trailer towing equipment.
y Do not use axle-mounted hitches
as they can cause damage to the
axle housing, wheel bearings,
wheels or tires.

8-22 Driving tips
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 ve-
hicle and trailer. Consult with a profes-
sional hitch supplier to assist you in
choosing an appropriate hitch for your ve-
hicle. Be sure to follow all of the hitch man-
ufacturer’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 are tight. „Connecting a trailer
T 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. Elec-
tric brakes or surge brakes are recom-
mended, and must be installed properly.
Check that your 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 pro-
fessional trailer supplier for more informa-
tion about the trailer’s brake system. T
Trailer safety chains
In case the trailer hitch connector or hitch
ball should break or become disconnect-
ed, the trailer could get loose and create a
traffic safety hazard.
For safety, always connect the towing ve-
hicle and trailer with trailer safety chains.
Pass the chains crossing each other un-
der the trailer tongue to prevent the trailer
from dropping onto the ground in case the
trailer tongue should disconnect from the
hitch ball. Allow sufficient slack in the
chains taking tight-turn situations into ac-
count; 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.
yAdequate size trailer brakes are
required when the trailer and its
cargo exceed 1,000 lbs (453 kg)
total weight.
yDo not directly connect your trail-
er’s hydraulic brake system to the
hydraulic brake system in your
vehicle. Direct connection would
cause the vehicle’s brake perfor-
mance to deteriorate and could
lead to an accident.
Always use safety chains between
your vehicle and the trailer. Towing
trailer without safety chains could
create a traffic safety hazard if the
trailer separates from the hitch due
to coupling damage or hitch ball
damage.

Driving tips 8-23
– CONTINUED –
T
Side mirrors
After hitching a trailer to your vehicle,
check that the standard side mirrors pro-
vide a good rearward field of view without
significant blind spots. If significant blind
spots occur with the vehicle’s standard
side mirrors, use towing mirrors that con-
form with Federal, state/province and/or
other applicable regulations. T Trailer lights
Connection of trailer lights to your vehi-
cle’s electrical system requires modifica-
tions to the vehicle’s lighting circuit to in-
crease 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. TTires
Make sure that all the tires on your vehicle
are properly inflated.
The recommended cold tire pressure un-
der trailer towing conditions is shown in
chapter 12, “Specifications” and in “GAS
STATION REFERENCE” at the end of this
manual. Adjust the rear tire pressure to
the recommended pressure when the tires
are cold. Normal pressure should be maintained in the front tires.
Trailer tire condition, size, load rating and
proper inflation pressure should be in ac-
cordance 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. „
Trailer towing tips
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.
800018
Never tow a trailer when the tempo-
rary spare tire is used. The tempo-
rary 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.
yNever exceed 45 mph (72 km/h)
when towing a trailer in hilly coun-
try on hot days.
y When towing a trailer, steering,
stability, stopping distance and
braking performance will be dif-
ferent from normal operation. For
safety’s sake, you should employ
extra caution when towing a trail-
er and you should never speed.
You should also keep the follow-
ing tips in mind:

8-24 Driving tips
TBefore starting out on a trip
y Check that the vehicle and vehicle-to-
hitch mounting are in good condition. If
any problems are apparent, do not tow the
trailer. y 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. y Check that the tire pressures are cor-
rect. y Check that the vehicle and trailer are
connected properly. Confirm that – the trailer tongue is connected prop-
erly to the hitch ball.
– the trailer lights connector is connect-
ed properly and trailer’s brake lights illu-
minate when the vehicle’s brake pedal
is pressed, and that the trailer’s turn sig-
nal lights flash when the vehicle’s turn
signal lever is operated.
– the safety chains are connected prop- erly.
– all cargo in the trailer is secured safe- ty in position.
– the side mirrors provide a good rear-
ward 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 re-
sult in skidding or jackknifing and loss of control.y Avoid uneven steering, sharp turns and
rapid lane changes.y Slow down before turning. Make a long-
er than normal turning radius because the
trailer wheels will be closer than the vehi-
cle 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, 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 im-
mediately but gradually. y When passing other vehicles, consider-
able distance is required because of the
added weight and length caused by at-
taching the trailer to your vehicle. 1) Left turn
2) Right turn
y 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. y If the ABS warning light illuminates
while the vehicle is in motion, stop towing
the trailer and have repairs performed im-
mediately by the nearest SUBARU dealer. T Driving on grades
y 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-12
800217

Driving tips 8-25
heating of your vehicle’s brakes. Do not
make sudden downshifts. yWhen driving uphill in hot weather, the
air conditioner may turn off automatically
to protect the engine from overheating. y When driving uphill in hot weather, pay
attention to the water temperature gauge
pointer and AT OIL TEMP warning light
since the engine and transmission are rel-
atively prone to overheating under these
conditions. If the water temperature gauge
pointer approaches the OVERHEAT zone
or the AT OIL TEMP warning light illumi-
nates, immediately switch off the air con-
ditioner and stop the vehicle at the nearest
safe place. Refer to the “Engine overheat-
ing” section in chapter 9, and “Warning
and indicator lights” section in chapter 3.
NOTE
The temperature of engine coolant is
less likely to rise to the OVERHEAT
zone in the “D” position than in the
manual mode position. y 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. T Parking on a grade
Always block the wheels under both vehi- cle 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 un-
der both the vehicle and trailer wheels.
3. When the wheel blocks are in place, re-
lease the regular brakes slowly until the
blocks absorb the load.
4. Apply the regular brakes and then ap-
ply the parking brake; slowly release the
regular brakes.
5. Shift into “P” and shut off the engine.