check engine SUBARU LEGACY 2010 5.G User Guide

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
malfunctioning. Drive carefully to the
nearest SUBARU dealer and have the
system inspected.
6. If the brake fluid level is below the “ MIN ”mark, DO NOT drive the vehicle.
Instead, have the vehicle towed to the
nearest SUBARU dealer for repair. ! Electronic parking brake system warning
The brake system warning light flashes
when the electronic parking brake system
is malfunctioning. If the warning light
flashes, promptly park in a safe location
as soon as possible and contact your
SUBARU dealer.
The brake system warning light remains
illuminated when the parking brake cannot
be released even if the parking brake
switch is pulled. For details, refer to“ Electronic parking brake ”F 7-34.
! Parking brake apply inhibit warning
The brake system warning light flashes for
10 seconds and a chirp sound will be
heard if the parking brake switch is
operated when the parking brake cannot be applied. !
Frequent operation warning
The brake system warning light flashes for
20 seconds and a chirp sound will be
heard if the parking brake switch is
operated too frequently. In this case, the
operation of the parking brake switch is
restricted to protect the electronic parking
brake system.
NOTE
Wait until the warning light turns off. ! Emergency released warning
The brake system warning light flashes
when the parking brake is automatically
released in case of an emergency. & Hill Holder indicator light
WARNING
If the Hill Holder indicator light does
not illuminate even when the Hill
Holder switch is pressed to activate
the Hill Holder function, the electro-
nic parking brake system may be
malfunctioning. Immediately stop
the vehicle in a safe location and
contact your SUBARU dealer. The light illuminates when the ignition
switch is turned to the
“ON ”position and
turns off after approximately 2 seconds.
The light illuminates when the Hill Holder
switch is pressed to activate the Hill
Holder function.
& Low fuel warning light
The low fuel warning light illuminates
when the tank is nearly empty approxi-
mately 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 turn off unless the
tank is replenished up to an internal
fuel quantity of approximately 3.7 US
gal (14 liters, 3.1 Imp gal).
CAUTION
Promptly put fuel in the tank when-
ever the low fuel warning light
illuminates. Engine misfires as a
result of an empty tank could cause
damage to the engine. Instruments and controls
3-19
– CONTINUED –

3-20Instruments and controls
&Door open warning light
When the ignition switch is in the “ON ”
position, the door open warning light
illuminates for approximately 2 seconds
and then turns off.
The door open warning light illuminates if
any door, the rear gate (Outback) or trunk
lid (Legacy) is not fully closed. This
function is effective even if the ignition
switch is in the “LOCK ”or “Acc ”position or
thekeyisremovedfromtheignitionswitch.
Always make sure this light is not illumi-
nated before you start to drive. & Door open indicator light
When any of the doors, the rear gate
(Outback) or the trunk lid (Legacy) is not
fully closed, the door open indicator light
illuminates. This function is effective even
if the ignition switch is in the “LOCK ”or
“ Acc ”position or the key is removed from
the ignition switch.
The open door is indicated by the corre-
sponding part of the door open warninglight.
Always make sure this light is not illumi-
nated before you start to drive. &
Windshield washer
fluid warning light
This light illuminates when the fluid level in
the windshield washer fluid tank de-
creases to the lower limit (approximately
0.6 US qt, 0.6 liter, 0.5 Imp qt). &All-Wheel Drive
warning light (AT and
CVT models)
WARNING
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.
The All-Wheel Drive warning light illumi-
nates when the ignition switch is turned tothe “ON ”position and turns off after the
engine has started. ! For AT models
This light flashes if the vehicle is driven
with tires of different diameters fitted on its
wheels or with the air pressure exces- sively low in any of its tires. !
For CVT models
This light illuminates when All-Wheel
Drive is disengaged and the drive me-
chanism is switched to Front Wheel Drive
for maintenance 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 exces-
sively low in any of its tires.
& Vehicle Dynamics
Control warning light/
Vehicle Dynamics Con-
trol operation indicator light
The light illuminates when the ignition
switch is turned to the “ON ”position and
turns off several seconds after the engine
has started. This lighting pattern indicates
that the Vehicle Dynamics Control system
is operating normally. ! Vehicle Dynamics Control warning light
CAUTION
The Vehicle Dynamics Control sys-
tem provides its ABS control
through the electrical circuit of the

ABS system. Accordingly, if the ABS
is inoperative, the Vehicle Dynamics
Control system becomes unable to
provide ABS control. As a result, the
Vehicle Dynamics Control system
also becomes inoperative, causing
the warning light to illuminate.
Though both the Vehicle Dynamics
Control and ABS systems are inop-
erative in this case, the ordinary
functions of the brake system are
still available. You will be safe while
driving with this condition, but drive
carefully and have your vehicle
checked at a SUBARU dealer as
soon as possible.
NOTE . If the electrical circuit of the Vehicle
Dynamics Control system itself mal-
functions, the warning light only illumi-
nates. At this time, the ABS (Anti-lock
Brake System) remains fully opera-tional.. The warning light illuminates when
the electronic control system of the
ABS/Vehicle Dynamics Control systemmalfunctions.
The Vehicle Dynamics Control system is
probably inoperative under any of the
following conditions. Have your vehicle checked at a SUBARU dealer immedi-
ately. .
The warning light does not illuminate
when the ignition switch is turned to the “ ON ”position.
. The warning light illuminates while the
vehicle is running.
NOTE
If the warning light behavior is as
described in the following examples,
the Vehicle Dynamics Control system
may be considered normal. . The warning light illuminates right
after the engine is started but turns off
immediately, remaining off.. The warning light illuminates after
the engine has started and turns off
while the vehicle is subsequently beingdriven.. The warning light illuminates during
driving, but it turns off immediately and
remains off. ! Vehicle Dynamics Control opera-
tion indicator light
The indicator light flashes during activa-
tion of the skid suppression function and
during activation of the traction controlfunction. NOTE .
The light may remain illuminated for
a short period of time after the engine
has been started, especially in cold
weather. This does not indicate the
existence of a problem. The light
should turn off as soon as the engine
has warmed up.. The indicator light illuminates when
the engine has developed a problem
and the CHECK ENGINE warning light/
malfunction indicator lamp is on.
The Vehicle Dynamics Control system is
probably malfunctioning under the follow-
ing condition. Have your vehicle checked
at a SUBARU dealer as soon as possible. . The light does not turn off even after
the lapse of several minutes (the engine
has warmed up) after the engine hasstarted. & Vehicle Dynamics
Control OFF indicator light
The light illuminates when the ignition
switch is turned to the “ON ”position and
turns off after approximately 2 seconds.
The light illuminates when the Vehicle
Dynamics Control OFF switch is pressed
to deactivate the Vehicle Dynamics Con-
trol system. Instruments and controls
3-21
– CONTINUED –

3. To change the current setting, press
the trip knob for at least 2 seconds.
: Activated
: Deactivated
NOTE . The initial setting for your vehicle of
the gear position indicator and shift-up
indicator has been set for activation“
” at the time of shipment from the
factory. . It is not possible to change the
setting of the gear position indicator/
shift-up indicator when the ignition
switch is in the “ON ”position. Change
the setting when the ignition switch is
in the “LOCK ”or “Acc ”position.
& Turn signal indicator lights
These lights show the operation of the turn
signal or lane change signal.
If the indicator lights do not blink or blink
rapidly, the turn signal bulb may be burned
out. Replace the bulb as soon as possible.
Refer to “Replacing bulbs ”F 11-50. &
High beam indicator light
This light shows that the headlights are in
the high beam mode.
This indicator light also illuminates when
the headlight flasher is operated. &Cruise control indica-
tor light
The cruise control indicator light illumi-
nates when the ignition switch is turned tothe “ON ”position and turns off after
approximately 3 seconds.
This light illuminates when the “CRUISE ”
main switch is pressed. NOTE . If you move the cruise control lever
or press the main switch button while
turning the ignition switch “ON ”, the
cruise control function is deactivated
and the “CRUISE ”indicator light
flashes. To reactivate the cruise control
function, turn the ignition switch back
to the “Acc ”or “LOCK ”position, and
then turn it again to the “ON ”position.
. If this indicator light and the CHECK
ENGINE warning light/malfunction in-
dicator lamp flash simultaneously dur-
ing driving, have the vehicle checked
by your nearest SUBARU dealer. &
Cruise control set in-
dicator light
The cruise control set indicator light
illuminates when the ignition switch is
turned to the “ON ”position and turns off
after approximately 3 seconds.
This light illuminates when vehicle speed
has been set. & Headlight indicator light
This indicator light illuminates under the
following conditions. .when the light switch is turned to the
“
” or “”position
. when the light switch is in the “AUTO ”
position and the headlights illuminate automatically
& Front fog light indicator
light (if equipped)
This indicator light illuminates while the
front fog lights are illuminated. Instruments and controls
3-23

&Outside temperature indica- tor
1) U.S.-spec. models
2) Except U.S.-spec. models
The outside temperature indicator shows
the outside temperature in a range from 22 to 122 8F( 30 to 50 8C).
The indicator can give a false reading
under any of the following conditions: . When there is too much sun.
. During idling; while running at low
speeds in a traffic jam; when the engine
is restarted immediately following a shut- down. . When the actual outside temperature
falls outside the specified indicator range. !
Road surface freeze warning indi- cation1) U.S.-spec. models
2) Except U.S.-spec. models
When the outside temperature drops to 37 8F(3 8C) or lower, the temperature
indication flashes to show that the road
surface may be frozen.
If the outside temperature drops to 37 8F
(3 8C) or lower while the display is giving
an indication other than the outside
temperature, the display switches to the
outside temperature indication and flashes
for 5 seconds before returning to its
original indication.
If the display is already indicating an
outside temperature of 37 8F(3 8C) or lower
when the ignition switch is turned to the “
ON ”position, the indication does not
flash.
NOTE
The outside temper ature indication
may differ from the actual outside
temperature. The road surface freeze
warning indication should be treated
only as a guide. Be sure to check the
condition of the road surface beforedriving. & Average fuel consumption
1) U.S.-spec. models
2) Except U.S.-spec. models
This indication shows the average rate of
fuel consumption since the trip meter was
last reset. Instruments and controls
3-25
– CONTINUED –

Ventilator.............................................................. 4-2
Air flow selection ................................................ 4-2
Ventilators ........................................................... 4-3
Manual climate control system (if equipped) ..................................................... 4-4
Control panel ...................................................... 4-4
Heater operation ................................................. 4-6
Air conditioner operation ..................................... 4-7
Automatic climate control system (if equipped) ..................................................... 4-8
Control panel ...................................................... 4-9
Temperature sensors .......................................... 4-13
Operating tips for heater and air conditioner ....................................................... 4-14
Cleaning ventilator grille ..................................... 4-14 Efficient cooling after parking in direct
sunlight ........................................................... 4-14
Lubrication oil circulation in the refrigerant circuit .............................................................. 4-14
Checking air conditioning system before summer season ............................................................ 4-14
Cooling and dehumidifying in high humidity and low temperature weather condition ................... 4-14
Air conditioner compressor shut-off when engine is heavily loaded .............................................. 4-14
Refrigerant for your climate control system ... ..... 4-14
Air filtration system ........................................... 4-15
Replacing an air filter ......................................... 4-15Climate control
4

4-14Climate 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 impaired
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
allow 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 conditioner 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
operation each spring. Have the air con-
ditioning system checked by your
SUBARU dealer. & 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 system.
& Air conditioner compressor
shut-off when engine is
heavily loaded
To improve acceleration and gas mileage,
the air conditioner compressor is designed
to temporarily shut off during air condi-
tioner operation whenever the accelerator
is fully depressed such as during rapid
acceleration or when driving on a steepupgrade. & Refrigerant for your climate
control system
Your air conditioner uses ozone friendly
refrigerant HFC134a. Therefore, the meth-
od of adding, changing or checking the
refrigerant is different 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.

Fuel...................................................................... 7-2
Fuel requirements ............................................... 7-2
Fuel filler lid and cap ........................................... 7-3
State emission testing (U.S. only) ...................... 7-6
Preparing to drive ............................................... 7-7
Starting the engine .............................................. 7-8
MT models .......................................................... 7-8
AT and CVT models ............................................. 7-9
Stopping the engine ........................................... 7-10
Remote engine start system (dealer option) ................................................. 7-10
Starting your vehicle .......................................... 7-11
Remote start safety features ............................... 7-11
Entering the vehicle while it is running via remote start ................................................................. 7-12
Remote start confirmation transmitter feature ............................................................. 7-12
Entering the vehicle following remote engine start shutdown ......................................................... 7-13
Pre-heating or pre-cooling the interior of the vehicle ............................................................. 7-13
Service mode ..................................................... 7-14
Remote transmitter program ............................... 7-14
System maintenance .......................................... 7-14
Manual transmission .......................................... 7-16
Selecting reverse gear ........................................ 7-16
Shifting speeds .................................................. 7-17
Driving tips ........................................................ 7-17
Automatic transmission/Continuously variable transmission ..................................... 7-18
Select lever ........................................................ 7-19 Shift lock function
............................................. 7-20
Selection of manual mode .................................. 7-21
Driving tips ........................................................ 7-23
Power steering ................................................... 7-23
Braking ............................................................... 7-23
Braking tips ....................................................... 7-23
Brake system .................................................... 7-24
Disc brake pad wear warning indicators ............. 7-24
ABS (Anti-lock Brake System) .......................... 7-25
ABS system self-check ...................................... 7-25
ABS warning light .............................................. 7-25
Electronic Brake Force Distribution (EBD) system ............................................................. 7-26
Steps to take if EBD system malfunctions ..... ..... 7-27
Vehicle Dynamics Control system .................... 7-28
Vehicle Dynamics Control system monitor..... ..... 7-29
Vehicle Dynamics Control OFF switch ................ 7-31
Tire pressure monitoring system (TPMS) (if equipped) .................................................... 7-32
Parking your vehicle ......................................... 7-33
Electronic parking brake .................................... 7-34
Parking tips ....................................................... 7-37
Cruise control .................................................... 7-38
To set cruise control .......................................... 7-38
To temporarily cancel the cruise control ............. 7-39
To turn off the cruise control .............................. 7-39
To change the cruising speed .. .......................... 7-40
Cruise control indicator light .............................. 7-41
Cruise control set indicator light ........................ 7-41
Starting and operating
7

7-2Starting and operating
Fuel
CAUTION
Use of a fuel which is low in quality
or use of an inappropriate fuel
additive may cause engine damage.
& Fuel requirements
! Non-turbo models
The non-turbo engine is designed to
operate using unleadedgasoline with an
octane rating of 87 AKI or higher .
! Turbo models
The engine is designed to operate at
maximum performance using unleaded
gasoline with an octane rating of 93 AKI
or higher . If 93 AKI fuel is not readily
available in your area, unleaded gasoline
with an octane rating of 91 AKI may be
used with no detriment to engine durability
or driveability. However, you may notice a
slight decrease in maximum engine per-
formance while using 91 AKI fuel. Use of
91 AKI fuel will not affect your warranty
coverage. If premium unleaded gasoline is
not available, regular unleaded gasoline
with an octane rating of 87 AKI or higher
may be temporarily used. For optimum engine performance and driveability, it is
required that you use premium grade
unleaded gasoline.
NOTE
Be sure to use premium unleaded
gasoline of 91 AKI or higher for a turbo
engine model. If other gasoline (lower
than 91 AKI) is used, knocking, re-
duced output and poor accelerator
response will result. ! Fuel octane rating
This octane rating is the average of the
Research Octane and Motor Octane
numbers and is commonly referred to as
the Anti Knock Index (AKI).
Using a gasoline with a lower octane
rating can cause persistent and heavy
knocking, which can damage the engine.
Do not be concerned if your vehicle
sometimes 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. ! Unleaded gasoline
The neck of the fuel filler 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. !
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
system performance with gasoline that
meets the clean burning low-sulfur Cali-
fornia gasoline specifications. If you live in
any other state than California, your
vehicle will operate on gasoline meeting
Federal specifications. Gasoline sold out-
side California is permitted to have higher
sulfur levels, which may affect the perfor-
mance of your vehicle ’s catalytic converter
and may produce a sulfur exhaust odor or
smell. SUBARU recommends 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
authorized SUBARU dealer for diagnosis.
If it is determined that the condition is
caused by the type of fuel used, repairs
may not be covered by your warranty.

!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-
function indicator lamp may turn on. If this
happens, return to your authorized
SUBARU Dealer for service. If it is
determined that the condition is caused
by the type of fuel used, repairs may not
be covered by your warranty. ! Gasoline for cleaner air
CAUTION
Do not let fuel spill on the exterior
surfaces of the vehicle. Fuels con-
taining alcohol may cause paint
damage, which is not covered under
the SUBARU Limited Warranty.
Your use of gasoline with detergent
additives will help prevent deposits from
forming in your engine and fuel system.
This helps keep your engine in tune and
your emission control system working
properly, and is a way of doing your part
for cleaner air. If you continuously use a
high quality fuel with the proper detergent
and other additives, you should never need to add any fuel system cleaning
agents to your fuel tank.
Many gasolines are now blended with
materials called oxygenates. Use of these
fuels can also help keep the air cleaner.
Oxygenated blend fuels, such as MTBE
(Methyl Tertiary Butyl ether) or ethanol
(ethyl or grain alcohol) may be used in
your vehicle, but should contain no more
than 15% MTBE or 10% ethanol for the
proper operation of your SUBARU.
In addition, some gasoline suppliers are
now producing reformulated gasolines,
which are designed to reduce vehicle
emissions. SUBARU approves the use of
reformulated gasoline.
If you are not sure what the fuel contains,
you should ask your service station
operators if their gasolines contain deter-
gents and oxygenates and if they have
been reformulated to reduce vehicle emis-sions.
As additional guidance, only use fuels
suited for your vehicle as explained in thefollowing. .
Fuel should be unleaded and have an
octane rating no lower than that specified
in this manual. . Methanol (methyl or wood alcohol) is
sometimes mixed with unleaded gasoline. Methanol can be used in your vehicle
ONLY
if it does not exceed 5% of the fuel
mixture ANDif it is accompanied by
sufficient quantities of the proper cosol-
vents and corrosion inhibitors required to
prevent damage to the fuel system. Do not
use fuel containing methanol EXCEPT
under these conditions. . If undesirable driveability problems are
experienced and you suspect they may be
fuel related, try a different brand of gaso-
line before seeking service at your
SUBARU dealer. . Fuel system damage or driveability
problems which result from the use of
improper fuel are not covered under the
SUBARU Limited Warranty.
& Fuel filler lid and cap
! Refueling
Only one person should be involved in
refueling. Do not allow others to approach
the area of the vehicle near the fuel filler
pipe while refueling is in progress.
Be sure to observe any other precautions
that are posted at the service station. Starting and operating
7-3
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