2006 SUBARU LEGACY check engine

Instruments and controls 3-21
– CONTINUED –
This light has the following three func- tions: T
Parking brake warning
The light comes on with the parking brake
applied while the ignition switch is in the
“ON” position. It goes out when the park-
ing brake is fully released. T Brake fluid level warning
This light comes on when the brake fluid
level has dropped to near the “MIN” level
of the brake fluid reservoir with the ignition
switch in the “ON” position and with the
parking brake fully released.
If the brake system warning light should
come on while driving (with the parking
brake fully released and with the ignition
switch positioned in “ON”), it could be an
indication of leaking of brake fluid or worn
brake pads. If this occurs, immediately
stop the vehicle at the nearest safe place
and check the brake fluid level. If the fluid
level is below the “MIN” mark in the reser-
voir, do not drive the vehicle. Have the ve-
hicle towed to the nearest SUBARU deal- er for repair. T
Electronic Brake Force Distribution
(EBD) system warning
The brake system warnin g light also illu-
minates if a malfunction occurs in the EBD
system. In that event, it comes on together
with the ABS warning light.
The EBD system may be faulty if the brake
system warning light and ABS warning
light illuminate simultaneously during driv-
ing.
Even if the EBD system fails, the conven-
tional braking system will still function.
However, the rear wheels will be more
prone to locking when the brakes are ap-
plied harder than usual and the vehicle’s
motion may therefore become somewhat
harder to control.
If the brake system warning light and ABS
warning light illuminate simultaneously,
take the following steps:
1. Stop the vehicle in the nearest safe, flat
place.
2. Shut down the engine, then restart it.
3. Release the parking brake. If both warning lights go ou t, the EBD system
may be faulty.
Drive carefully to the nearest SUBARU
dealer and have t he system inspected.
4. If both warning lights come on again
and stay illuminated after the engine has been restarted, shut down the engine
again, apply the parking brake, and check
the brake fluid level.
5. If the brake fluid level is not below the
“MIN” mark, the EBD system may be
faulty. Drive carefully to the nearest
SUBARU dealer and have the system in-
spected.
6. If the brake fluid level is below the
“MIN” mark, DO NOT drive the vehicle. In-
stead, have the vehicle towed to the near-
est SUBARU dealer for repair.
„ Low fuel warning light
The low fuel warning light comes on when
the tank is nearly em pty approximately 2.6
US gal (10.0 liters, or 2.2 Imp gal). It only
operates when the ignition switch is in the
“ON” position.
NOTE
This light does not go out unless the
tank is replenished up to an internal
fuel quantity of approximately 3.7 US
gal (14 liters, 3.1 Imp gal).
y If at all in doubt about whether the
brakes are operating properly, do
not drive the vehicle. Have your
vehicle towed to the nearest
SUBARU dealer for repair.

3-22 Instruments and controls
„Door open warning light
When any of the doors or the rear gate
(Station wagon) or trunk lid (Sedan) is not
fully closed, it is indicated by the corre-
sponding part of the door warning light.
Always make sure this light is out before you start to drive. „ All-Wheel Drive warn-
ing light (AT vehicles)
The All-Wheel Drive warning light comes
on when the ignition switch is turned to the
“ON” position and goes out after the en-
gine has started. TFor 5-speed automatic transmission vehicles
This light flashes if the vehicle is driven
with tires of different diameters fitted on its
wheels or with the air pressure excessive-
ly low in any of its tires. T For 4-speed automatic transmission vehicles
This light comes on when All-Wheel Drive
is disengaged and the drive mechanism is
switched to Front Wheel Drive for mainte-
nance or similar purposes.
This light flashes if the vehicle is driven
with tires of different diameters fitted on its
wheels or with the air pressure excessive-
ly low in any of its tires. „ Vehicle Dynamics Con-
trol operation indicator
light (if equipped)
This light comes on when the ignition
switch is ON and goes out approximately
2 seconds later.
It blinks when the skid suppression func-
tion is activated. It illuminates when only
the traction control function is operating. The Vehicle Dynamics Control system is
probably faulty under any of the following
conditions. Have your vehicle checked at
a SUBARU dealer immediately. y
The light does not come on when the ig-
nition switch is turned to the “ON” position. y The light does not go out even after a
period of approximately 2 seconds after
the ignition switch has been turned to the
“ON” position. „ Vehicle Dynamics Con-
trol warning light (if
equipped)/Vehicle Dy-
namics Control OFF indicator
light (if equipped)
This warning light has both the function of
indicating faults in the Vehicle Dynamics
Control system and the function of indicat-
ing that the Vehicle Dynamics Control sys-
tem has been deactivated.
It comes on in the event of a fault in the
system and is on when the system is not
operating.
This warning light comes on when the ig-
nition switch is turned to the “ON” position
and goes out after the engine has started.
It indicates that the Vehicle Dynamics
Control system is in normal operation.
(Turbo model only) Promptly put
fuel in the tank whenever the low
fuel warning light comes on. Engine
misfires as a result of an empty tank
could cause damage to the engine.
Continued driving with the AWD
warning light flashing can lead to
powertrain damage. If the AWD
warning light flashes, promptly park
in a safe place then check whether
all four tires are the same diameter
and whether any of the tires has a
puncture or has lost air pressure for
some other reason.

Instruments and controls 3-23
– CONTINUED –
T
Vehicle Dynamics Control warning
light
The Vehicle Dynami cs Control system is
probably inoperative under any of the fol-
lowing conditions. Have your vehicle
checked at a SUBARU dealer immediate- ly.y The warning light does not come on
when the ignition switch is turned to the
“ON” position.y The warning light comes on while the
vehicle is running.y If the electrical circuit of the Vehicle Dy-
namics Control system itself becomes
faulty, the warning light only comes on. At
this time, the ABS (Anti-lock Brake Sys-
tem) remains fully operational.y The warning light comes on when the
electronic control sys tem of the ABS/Vehi-
cle Dynamics Control system becomes
faulty.
The Vehicle Dynamics Control system
provides its ABS control through the elec-
trical circuit of the ABS system. Accord-
ingly, if the ABS is in operative, the Vehicle
Dynamics Control system becomes un- able to provide ABS c ontrol. As a result,
the Vehicle Dynamics Control system also
becomes inoperative, causing the warning
light to come on. Though both the Vehicle
Dynamics Control and ABS systems are
inoperative in this case, the ordinary func- tions of the brake system are still avail-
able. You will be safe while driving with
this condition, but have your vehicle
checked at a SUBARU dealer as soon as
possible.
NOTE
If the warning light behavior is as
shown in the following, the Vehicle Dy-
namics Control system may be consid-
ered normal.y
The warning light comes on right af-
ter the engine is started but goes out
immediately, remaining off.y The warning light comes on after en-
gine startup and goes off while the ve-
hicle is subsequently being driven.y The warning light comes on during
driving, but it goes out immediately
and remains off. T Vehicle Dynamics Control OFF indi-
cator light
y It comes on when the Vehicle Dynamics
Control OFF switch is pressed. y It also comes on when the Vehicle Dy-
namics Control system is deactivated.
NOTE y The light may stay on for a while after
the engine has been started, especially
in cold weather. This does not indicate
the existence of a problem. The light should go out as soon as the engine
has warmed up. y
The indicator light comes on when
the engine has developed a problem
and the Malfunction indicator light is
on.
The Vehicle Dynamics Control system is
probably faulty under the following condi-
tion. Have your vehicle checked at a
SUBARU dealer as soon as possible. y The light does not go out even after the
lapse of several minutes (the engine has
warmed up) after the engine has started. „ Security indicator light
This indicator light shows the status of the
alarm system. It also indicates operation
of the immobilizer system. T Alarm system
It blinks to show the driver the operational
status of the alarm system. For detailed
information, refer to the “Alarm system”
section in chapter 2. T Immobilizer system
This light blinks approximately 60 seconds
after the ignition switch is turned from
“ON” position to the “ACC” or “LOCK” po-
sition or immediately after the key is pulled
out. (Refer to the “Door locks” section in

4
Climate control
Ventilator ............................................................. 4-2 Air flow selection .................................................... 4-2
Center and side ventilators .................................... 4-3
Manual climate control system (if equipped) ... 4-3 Control panel ........................................................... 4-3
Heater operation ..................................................... 4-5
Air conditioner operation ....................................... 4-7
Automatic climate control system (if equipped) ......................................................... 4-7Control panel ........................................................... 4-8
Temperature sensors ............................................. 4-11
Operating tips for heater and air conditioner .. 4-12 Cleaning ventilator grille ........................................ 4-12
Efficient cooling after parking in direct sunlight ................................................................. 4-12
Lubrication oil circulation in the refrigerant
circuit ..................................................................... 4-12
Checking air conditioni ng system before summer
season ................................................................... 4-12
Cooling and dehumidifying in high humidity and low temperature weather condition .................... 4-12
Air conditioner compressor shut-off when engine
is heavily loaded ................................................... 4-12
Refrigerant for your climate control system ........ 4-12
Air filtration system (if equipped) ..................... 4-13

4-12 Climate control
Operating tips for heater and
air conditioner „Cleaning ventilator grille
Always keep the front ventilator inlet grille
free of snow, leaves, or other obstructions
to ensure efficient heating and defrosting.
Since the condenser is located in front of
the radiator, this area should be kept
clean because cooling performance is im-
paired by any accumulation of insects and
leaves on the condenser. „ Efficient cooling after parking
in direct sunlight
After parking in direct sunlight, drive with
the windows open for a few minutes to al- low outside air to circulate into the heated
interior. This results in quicker cooling by
the air conditioner. Keep the windows
closed during the operation of the air con-
ditioner for maximum cooling efficiency. „
Lubrication oil circulation in
the refrigerant circuit
Operate the air conditioner compressor at
a low engine speed (at idle or low driving
speeds) a few minutes each month during
the off-season to circulate its oil. „ Checking air conditioning
system before summer sea-son
Check the air conditioner unit for refriger-
ant leaks, hose conditions, and proper op-
eration each spring. Have your SUBARU
dealer perform this check. „ Cooling and dehumidifying in
high humidity and low tem-
perature weather condition
Under certain weather conditions (high
relative humidity, low temperatures, etc.)
a small amount of water vapor emission
from the air outlets may be noticed. This
condition is normal and does not indicate any problem with the air conditioning sys-
tem. „
Air conditioner compressor
shut-off when engine is
heavily loaded
To improve acceleration and gas mileage,
the air conditioner compressor is de-
signed to temporarily shut off during air
conditioner operation whenever the accel-
erator is fully depressed such as during
rapid acceleration or when driving on a
steep upgrade. „ Refrigerant for your climate
control system
Your air conditioner uses ozone friendly
refrigerant HFC134a. Therefore, the
method of adding, changing or checking
the refrigerant is diffe rent from the method
for CFC12 (freon). Consult your SUBARU
dealer for service. Repairs needed as a
result of using the wrong refrigerant are
not covered under warranty.
400590

7
Starting and operating
Fuel ...................................................................... 7-2 Fuel requirements .................................................. 7-2
Fuel filler lid and cap .............................................. 7-4
State emission testing (U .S. only) .................... 7-6
Preparing to drive .............................................. 7-7
Starting the engine ............................................. 7-8 Manual transmission vehicle ................................. 7-8
Automatic transmission vehicle ............................ 7-8
Stopping the engine ........................................... 7-9
Manual transmission ......................................... 7-9 Shifting speeds ....................................................... 7-10
Driving tips .............................................................. 7-11
Automatic transmission – 4- speed ................... 7-11
Selector lever .......................................................... 7-12
Selector lever reverse inhibiting function ............ 7-13
Selection of manual mode ..................................... 7-14
Maximum speeds .................................................... 7-15
Driving tips .............................................................. 7-16
SPORT mode ........................................................... 7-16
Shift lock release . ........................................... ........ 7-16
Automatic transmission – 5- speed ................... 7-17
Selector lever .......................................................... 7-18
Selector lever reverse inhibiting function ............ 7-19
Selection of manual mode ..................................... 7-20
Maximum speeds .................................................... 7-22
Driving tips .............................................................. 7-23
SPORT mode ........................................................... 7-23
Shift lock release . ........................................... ........ 7-23Rear viscous limited slip differential (LSD)
(if equipped) ..................................................... 7-24
Power steering .................................................... 7-25
Braking ................................................................ 7-25 Braking tips ............................................................. 7-25
Brake system .......................................................... 7-25
Disc brake pad wear warning in dicators .............. 7-26
ABS (Anti-lock Brake System) .......................... 7-26 ABS system self-check ......... ................................. 7-26
ABS warning light ................................................... 7-27
Electronic Brake Force Distribution (EBD) system .............................................................. 7-28Steps to take if EBD system fails .......................... 7-28
Vehicle Dynamics Control system (if equipped) ..................................................... 7-29Vehicle Dynamics Control system monitor .......... 7-31
Vehicle Dynamics Control OFF switch ................. 7-32
Tire pressure monitoring system (TPMS) (if equipped) ..................................................... 7-33
Parking your vehicle .......................................... 7-35
Cruise control ..................................................... 7-36 To set cruise control .............................................. 7-37
To temporarily cancel the cruise control ............. 7-37
To turn off the cruise control ................................. 7-38
To change the cruising speed ............................... 7-38
Cruise control indicator light ................................. 7-39
Cruise control set indicator light .......................... 7-39

7-2 Starting and operating
Starting and operatingFuel
„Fuel requirements
T 2.5-liter non-turbo models
The 2.5-liter non-turbo engine is designed
to operate using unleaded gasoline with
an octane rating of 87 AKI or higher. T 2.5-liter turbo models and 3.0-liter models
The 2.5-liter turbo engine and 3.0-liter en-
gine are designed to operate using premi-
um unleaded gasoline with an octane rat-
ing of 91 AKI or higher. If premium unlead-
ed gasoline is not available, regular un-
leaded gasoline with an octane rating of
87 AKI or higher may be temporarily used.
For optimum engine performance and
driveability, it is required (for 2.5-liter turbo
models), and recommended (for 3.0-liter
models) that you use premium grade un-
leaded gasoline.
NOTE
Be sure to use premium unleaded gas- oline of 91 AKI or higher for a 2.5-liter
turbo engine model. If other gasoline
(lower than 91 AKI) is used, knocking,
reduced output and poor accelerator
response will result. T
Fuel octane rating
This octane rating is the average of the
Research Octane and Motor Octane num-
bers and is commonly referred to as the
Anti Knock Index (AKI).
Using a gasoline with a lower octane rat-
ing can cause persistent and heavy
knocking, which can damage the engine.
Do not be concerned if your vehicle some-
times knocks lightly when you drive up a
hill or when you accelerate. See your
dealer or a qualified service technician if
you use a fuel with the specified octane
rating and your vehicle knocks heavily or persistently. T Unleaded gasoline
The neck of the fuel f iller pipe is designed
to accept only an unleaded gasoline filler
nozzle. Under no circumstances should
leaded gasoline be used because it will damage the emission control system and
may impair driveability and fuel economy. T California fuel
If your vehicle was certified to California
Emission Standards as indicated on the underhood tune-up label,
it is designed to
optimize engine and emission control sys-
tem performance with gasoline that meets
the clean burning low-sulfur California
gasoline specifications. If you live in any
other state than Calif ornia, your vehicle
will operate on gasoline meeting Federal
specifications. Gasoline sold outside Cali-
fornia is permitted to have higher sulfur
levels, which may affect the performance
of your vehicle’s catalytic converter and
may produce a sulfur exhaust odor or
smell. SUBARU recomm ends that you try
a different brand of unleaded gasoline
having lower sulfur to determine if the
problem is fuel related before returning
your vehicle to an authorized dealer for
service. The CHECK ENGINE warning
light/Malfunction indicator lamp may also
turn on. If this occurs, return to your autho-
rized SUBARU dealer for diagnosis. If it is
determined that the condition is caused by
the type of fuel us ed, repairs may not be
covered by your warranty. T MMT
Some gasoline contains an octane-en-
hancing additive called MMT (Methylcy-
clopentadienyl Manganese Tricarbonyl). If
you use such fuels, your emission control
system performance may deteriorate and
the CHECK ENGINE warning light/Mal-
Use of a fuel which is low in quality
or use of an inappropriate fuel addi-
tive may cause engine damage.

Starting and operating 7-5
– CONTINUED –
1) Open
2) Close
3. Remove the fuel filler cap by turning it
slowly counterclockwise.
4. Stop filling the tank after the fuel filler
pump automatically cl icks off. Do not add
any more fuel.
5. Put the cap back on, turn it clockwise
until you hear a clicking noise. Be certain
not to catch the tether under the cap while
tightening.
6. Close the fuel filler lid completely.
If you spill any fuel on the painted surface,
rinse it off immediately. Otherwise, the
painted surface could be damaged.
NOTE y
You will see the “ ” sign in the
fuel gauge. This indicates that the fuel
filler door (lid) is located on the right
side of the vehicle. y If the fuel filler cap is not tightened
until it clicks or if the tether is caught
under the cap, the CHECK ENGINE
warning light may come on. Refer to
the “Warning and indicator lights” sec-
tion located in chapter 3.
(Turbo model only) Promptly put fuel in
the tank whenever the low fuel warning
light comes on. Engine misfires as a re-
sult of an empty tank could cause dam-
age to the engine.
y Gasoline vapor is highly flamma-
ble. Before refueling, always first
stop the engine and make sure
that there are no lighted ciga-
rettes, open flames or electrical
sparks in the adjacent area.
1 2
700344
y
When opening the cap, do not re-
move the cap quickly. Fuel may be
under pressure and spray out ofthe fuel filler neck especially in
hot weather, which may cause in-
jury.
200253
y Never add any cleaning agents to the fuel tank. The addition of a
cleaning agent may cause dam-
age to the fuel system.
y Make sure that the cap is tight-
ened until it clicks to prevent fuel
spillage in the event of an acci-
dent.
y Do not let fuel sp ill on the exterior
surfaces of the vehicle. Fuels may
cause paint damage, which is not
covered under the SUBARU Limit-
ed Warranty.