engine SUBARU LEGACY 2004 4.G Repair Manual

7-38
Starting and operating
speed of approximately 8 mph (12 km/h). y
The VDC warning light turns on while the vehicle is
being driven. y When a malfunction has occurred in the VDC elec-
trical system, only the VDC warning light will turn on.
In such an event, the ABS will still be operating nor-
mally. y The VDC warning light will also turn on when a prob-
lem occurs with the ABS or VDC electronic control
systems.
Because the VDC system controls each brake throughthe ABS, whenever the ABS stops operating due to a
malfunction in that electrical system, the VDC will also
become unable to control all four brakes. Thus VDC
system operation halts and the VDC warning light
turns on. Although both the VDC system and the ABS
will be inoperable in this situation, it will still be possi-
ble to stop the vehicle using normal braking. The VDC
system and the ABS do not adversely affect operation
of the vehicle in any way when they are inoperable;however should such a situation occur, drive with care
and have an authorized SUBARU dealer carry out an
inspection of those systems at the first available op-
portunity.
NOTE
When the VDC warning light turns on and off in the
following way, it indicates that the VDC system is operating normally.y
Although turning on after the engine has been
started, the warning light quickly turns off and
stays off. y The warning light turns on after the engine is
started and does not turn off until the vehicle
reaches a speed of 8 mph (12 km/h). y The warning light turns on when the vehicle is
being driven; it then turns off and stays off. „ VDC OFF switch
UB7022AA

7-39
Starting and operating
– CONTINUED –
With OnStar® System
Note: Even when the lighting switch is turned to the
“ ” or “ ” position, the “OFF” portion of the
symbol stamped on the switch will not illuminate in the
dark. Only “VDC” portion will illuminate.
Pressing the VDC OFF switch to deactivate the VDC
system can facilitate the following operations: y a standing start on a steeply sloping road with a
snowy, gravel-covered, or otherwise slippery surface y extrication of the vehicle when its wheels are stuck
in mud or deep snow
When the VDC OFF switch is pressed during engine operation, the VDC OFF indicator light illuminates.
The VDC system will be deactivated and the vehicle
will behave like a model not equipped with the VDC system.
When the VDC OFF switch is pressed again to reacti-
vate the VDC system, the VDC OFF indicator light
goes off.
If the vehicle reaches a speed of approximately 37
mph (60 km/h) after the VDC OFF switch is pressed to
deactivate the VDC system, the VDC system automat-
ically reactivates itself and the VDC OFF indicator light
goes off. While the vehicle is moving at a speed of ap-
proximately 37 mph (60 km/h) or higher, it is not pos-
sible to deactivate the VDC system by pressing theVDC OFF switch.
With the VDC system deactivated, traction and stabil-
ity enhancement offered by VDC system is unavail-
able. Therefore you should not deactivate the VDC
system except under above-mentioned situations.
NOTE y
When the VDC switch has been pressed to deac-
tivate the VDC system, the VDC system automati-
cally reactivates itself the next time the ignition
key is turned to the OFF position and the engine is
restarted. y If the VDC OFF switch is held down for 10 sec-
onds or longer, the VDC OFF indicator light goes
UB7028AA

7-40
Starting and operating
off, the VDC system is activated, and the system
ignores any further pressing of the VDC OFF
switch. To make the VDC OFF switch usable again,
turn the ignition key to the OFF position and re-
start the engine.Parking your vehicle
y
Never leave unattended children or pets in
the vehicle. They could accidentally injure
themselves or others through inadvertent oper-
ation of the vehicle. Also, on hot or sunny days,
the temperature in a closed vehicle could
quickly become high enough to cause severe
or possibly fatal injuries to them. y Do not park the vehicle over flammable mate-
rials such as dry grass, waste paper or rags, as
they may burn easily if they come near hot en-
gine or exhaust system parts.y Be sure to stop the engine if you take a nap in
the vehicle. If engine exhaust gas enters the
passenger compartment, occupants in the ve-
hicle could die from carbon monoxide (CO)
contained in the exhaust gas.
Never drive while the parking brake is set be-
cause this will cause unnecessary wear on the
brake linings. Before starting to drive, always

7-41
Starting and operating
– CONTINUED –
make sure that the parking brake has been fully
released.
To set the parking brake, press the brake pedal firmly
and hold it down while fully pulling up the parking
brake lever.
To release the parking brake, pull the lever up slightly,
press the release button, then lower the lever while
keeping the button pressed.
When the parking brake is set while the engine is run-
ning, the parking brake warning light comes on. After
starting the vehicle, be sure that the warning light has
gone out before the vehicle is driven. Refer to the “Warning and indicator lights” section (chapter 3).
When parking your vehicle, always set the parking
brake firmly and put the shift lever in the “1” (1st) for an
upgrade or “R” (Reverse) for a downgrade for manual
transmission vehicles, or in the “P” (Park) position for
automatic transmission vehicles. Always set the park-
ing brake firmly when parking your vehicle. Never rely
on the transmission alone to hold the vehicle.
When parking on a hill, always turn the steering wheel.
When the vehicle is headed up the hill, the front
wheels should be turned away from the curb.
UB4001BA
UB4014AA

8-1
8
Driving tips
New vehicle break-in driving – the first 1,000 miles (1,600 km) .............................. 8-2
Fuel economy hints ...................................... 8-2
Engine exhaust gas (Carbon monoxide) .... 8-3
Catalytic converter ....................................... 8-4
Periodic inspections .................................... 8-5
Driving in foreign countries ......................... 8-6
Driving tips for AWD vehicles ..................... 8-6
Off road driving ............................................ 8-8
Winter driving ............................................... 8-11 Operation during cold weather ........................ 8-11
Driving on snowy and icy roads ...................... 8-12
Corrosion protection ........................................ 8-13
Snow tires .......................................................... 8-14
Tire chains ......................................................... 8-15
Rocking the vehicle .......................................... 8-16
Loading your vehicle ................................... 8-17 Vehicle capacity weight .................................... 8-18
GVWR and GAWR (Gross Vehicle Weight Rating and Gross Axle Weight Rating) ........ 8-19
Roof rail and crossbar (if equipped) ............... 8-20
Trailer hitch (if equipped) ............................ 8-25 Connecting a trailer .......................................... 8-25
When you do not tow a trailer .......................... 8-27
Trailer towing ................................................ 8-28 Warranties and maintenance ........................... 8-28
Maximum load limits ......................................... 8-29
Trailer hitches ................................................... 8-34
Connecting a trailer .......................................... 8-35 Trailer towing tips ............................................. 8-37

8-2
Driving tips
Driving tipsNew vehicle break-in driving – the
first 1,000 miles (1,600 km)
The performance and long life of your vehicle are de-
pendent on how you handle and care for your vehicle
while it is new. Follow these instructions during the
first 1,000 miles (1,600 km):y
Do not race the engine. And do not allow engine
speed to exceed 4,000 rpm except in an emergency.y Do not drive at one constant engine or vehicle
speed for a long time, either fast or slow. y Avoid starting suddenly and rapid acceleration, ex-
cept in an emergency. y Avoid hard braking, except in an emergency.
The same break-in procedures should be applied to a
newly installed or overhauled engine or when brake
pads or brake linings are replaced with new ones.
Fuel economy hints
The following suggestions will help to save your fuel. y Select the proper gear position for the speed and
road conditions. y Avoid sudden acceleration or deceleration. Always
accelerate gently until you reach the desired speed.
Then try to maintain that speed for as long as possible. y Do not pump the accelerator and avoid racing the
engine. y Avoid unnecessary engine idling.
y Keep the engine properly tuned.
y Keep the tires inflated to the correct pressure shown
on the tire placard, which is located under the door
latch on the driver’s side. Low pressure will increase
tire wear and fuel consumption.y Use the air conditioner only when necessary.
y Keep the front and rear wheels in proper alignment.
y Avoid carrying unnecessary luggage or cargo.

8-3
Driving tips
– CONTINUED –
Engine exhaust gas (Carbon monox-
ide)
yNever inhale engine exhaust gas. Engine ex-
haust gas contains carbon monoxide, a color-
less and odorless gas which is dangerous, or
even lethal, if inhaled.y Always properly maintain the engine exhaust
system to prevent engine exhaust gas from en-
tering the vehicle.y Never run the engine in a closed space, such
as a garage, except for the brief time needed to
drive the vehicle in or out of it.y Avoid remaining in a parked vehicle for a
lengthy time while the engine is running. If that
is unavoidable, then use the ventilation fan to
force fresh air into the vehicle. y Always keep the front ventilator inlet grille
free from snow, leaves or other obstructions to
ensure that the ventilation system always
works properly. y If at any time you suspect that exhaust fumes
are entering the vehicle, have the problem
checked and corrected as soon as possible. If
you must drive under these conditions, drive only with all windows fully open.y
Keep the trunk lid or rear gate closed while
driving to prevent exhaust gas from entering
the vehicle.
NOTE
Due to the expansion and contraction of the met-
als used in the manufacture of the exhaust sys-
tem, you may hear a crackling sound coming from
the exhaust system for a short time after the en-
gine has been shut off. This sound is normal.

8-4
Driving tips
Catalytic converter
y
Avoid fire hazards. Do not drive or park the
vehicle anywhere near flammable materials
(e.g. grass, paper, rags or leaves), because the
catalytic converter operates at very high tem-
peratures.y Keep everyone and flammable materials
away from the exhaust pipe while the engine is
running. The exhaust gas is very hot.
The catalytic converter is installed in the exhaust sys-
tem. It serves as catalyst to reduce HC, CO and NOx
in exhaust gases, thus providing cleaner exhaust.
To avoid damage to the catalytic converter: yUse only unleaded gasoline. Even a small amount
of leaded gasoline will damage the catalytic converter. y Never start the engine by pushing or pulling the ve-
hicle.y Avoid racing the engine.
y Never turn off the ignition switch while the vehicle is
moving.y Keep your engine tuned-up. If you feel the engine
running rough (misfiring, backfiring or incomplete
HS8002BA
UB8029BA

8-7
Driving tips
– CONTINUED –
All wheel drive distributes the engine power to all four
wheels. AWD vehicles provide better traction when
driving on slippery, wet or snow-covered roads and
when moving out of mud, dirt and sand. By shifting
power between the front and rear wheels, SUBARU
AWD can also provide added traction during acceler-
ation, and added engine braking force during deceler-
ation.
Therefore, your SUBARU AWD vehicle may handle
differently than an ordinary two wheel drive vehicle
and it contains some features unique to AWD. For
safety purposes as well as to avoid damaging the
AWD system, you should keep the following tips in mind: y
An AWD vehicle is better able to climb steeper
roads under snowy or slippery conditions than a two
wheel drive vehicle. There is little difference in han-
dling, however, during extremely sharp turns or sud-
den braking. Therefore, when driving down a slope or
turning corners, be sure to reduce your speed and
maintain an ample distance from other vehicles. y When replacing a tire, make sure you use only the
same size, circumference, construction, brand, and
load range as the original tires listed on the tire plac-
ard. Using other sizes, circumferences or construction
may result in severe mechanical damage to the drive
train of your vehicle and may affect ride, handling,
braking, speedometer/odometer calibration, and
clearance between the body and tires. It also may be
dangerous and lead to loss of vehicle control. y If you use a temporary spare tire to replace a flat
tire, be sure to use the original temporary spare tire
stored in the vehicle. Using other sizes may result in
severe mechanical damage to the drive train of your
vehicle. y Always check the cold tire pressure before starting
to drive. The recommended tire pressure is provided
on the tire placard, which is located under the door
latch on the driver’s side. y Tire chains should always be placed on the front
wheels only.
HS8003BA

8-9
Driving tips
– CONTINUED –
next section (applicable to the OUTBACK) for general
guidance. But please keep in mind that your vehicle’s
off-road capabilities are more limited than those of the
OUTBACK.
Never attempt to drive through pools and puddles, or
roads flooded with water. Water entering the engine
air intake or the exhaust pipe or water splashing onto
electrical parts may damage your vehicle and may
cause it to stall. TOUTBACK
Because of the AWD feature and higher ground clear-
ance, your SUBARU can be driven on ordinary roads
or off-road. But please keep in mind that an AWD
SUBARU is a passenger car and is neither a conven-
tional off-road vehicle nor an all-terrain vehicle. If you
do take your SUBARU off-road, certain common
sense precautions such as the following should be taken: y Make certain that you and all of your passengers
are wearing seat belts. y Carry some emergency equipment, such as a tow-
ing rope or chain, a shovel, wheel blocks, first aid kit
and portable phone or citizens band radio. y Drive carefully. Do not take unnecessary risks by
driving in dangerous areas or over rough terrain. y Slow down and employ extra caution at all times. When driving off-road, you will not have the benefit of
marked traffic lanes, banked curves, traffic signs and
the like. y
Do not drive across steep slopes. Instead, drive ei-
ther straight up or straight down the slopes. A vehicle
can much more easily tip over sideways than it can
end over end. Avoid driving straight up or down slopes
that are too steep.y Avoid sharp turning maneuvers, especially at higher
speeds. y Do not grip the inside or spokes of the steering
wheel. A bad bump could jerk the wheel and injure
your hands. Instead drive with your fingers and
thumbs on the outside of the rim.y If driving through water, such as when crossing
shallow streams, first check the depth of the water and
the bottom of the stream bed for firmness and ensure
that the bed of the stream is flat. Drive slowly and com-
pletely through the stream. The water should be shal-
low enough that it does not reach the vehicle’s under-
carriage. Water entering the engine air intake or the
exhaust pipe or water splashing onto electrical parts
may damage your vehicle and may cause it to stall.
Never attempt to drive through rushing water; regard-
less of its depth, it can wash away the ground from un-
der your tires, resulting in possible loss of traction and
even vehicle rollover.