2010 SUBARU LEGACY check engine

&Starting your vehicle
NOTE
All vehicle doors, the engine hood and
trunk / rear gate must be closed prior to
activating the remote engine start sys-
tem. Any open entry point will prevent
starting or cause the system to shutdown.
The remote engine start function is acti-
vated by pressing the “
”button twice
within 3 seconds on your remote engine
start transmitter. Upon successful activa-
tion the remote start confirming transmitter
button will flash once* and the vehicle will
honk the horn and flash the side marker
lights, tail lights and front position lights
once. The system will check certain preconditions before starting, and if all
safety parameters are correct, the engine
will start within 5 seconds. Upon success-
ful engine start, the remote start confirma-
tion transmitter button will flash twice
every 5 seconds* and the vehicle will
honk the horn and flash the side marker
lights, tail lights and the front position
lights once, then the lights will illuminate
and remain illuminated, indicating that the
engine is running. While the vehicle is
operating via the remote engine start
function, the power window features will
be disabled. Also, the system has a timer
and will shut down after 15 minutes if you
do not operate the vehicle. Press and hold the
“
”button for 2 seconds to turn the
engine off. The remote start confirmation
transmitter button will flash three times*
indicating that the engine has shut down.
If the starter cranks but does not start or
starts and stalls, the remote engine start
system will power off and then attempt to
start the engine an additional three times
unless the remote engine start system
determines that a vehicle malfunction is
preventing the system from starting. If the
engine does not start after additional
attempts, the remote engine start system
will abort and return to a non-activatestate.
*: Provided that the remote engine start transmitter is within the operating range of
the system.
& Remote start safety features
For safety and security reasons, the
system will fail to start and honk the horn
twice or shut down the engine during
remote start operation if any of the
following occur: . Any of the doors or the trunk / rear gate
are open / opened (*the vehicle ’s horn will
honk six times and the side marker lights,
tail lights and the front position lights will
flash six times indicating that a vehicle
door or trunk / rear gate was open when
the remote engine start system wasactivated). . The brake pedal is depressed
. The key was already in the ignition
switch. The engine hood is opened
. The remote start system “Service
mode ”is engaged
. The vehicle ’s engine idle speed has
reached a level over 3,500 RPM. The alarm is triggered by opening a
door or the rear gate.. The select lever is not in the “P ”
position (AT and CVT models)
In addition to the items above, if the Starting and operating
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ABS (Anti-lock Brake Sys- tem)
WARNING
Always use the utmost care in driving –overconfidence because
youaredrivingwithanABS
equipped vehicle could easily lead
to a serious accident.
CAUTION
. The ABS system does not always
decrease stopping distance. You
should always maintain a safe
following distance from othervehicles.
. When driving on badly surfaced
roads, gravel roads, icy road, or
over deep newly fallen snow,
stopping distances may be long-
er for a vehicle with the ABS
system than one without. When
driving under these conditions,
therefore, reduce your speed and
leave ample distance from othervehicles.
. When you feel the ABS system
operating, you should maintain constant brake pedal pressure.
Do not pump the brake pedal
since doing so may defeat the
operation of the ABS system.
The ABS system prevents the lock-up of
wheels which may occur during sudden
braking or braking on slippery road sur-
faces. This helps prevent the loss of
steering control and directional stability
caused by wheel lock-up.
When the ABS system is operating, you
may hear a chattering noise or feel a slight
vibration in the brake pedal. This is normal
when the ABS operates.
The ABS system will not operate when the
vehicle speed is below approximately 6
mph (10 km/h).
& ABS system self-check
You may feel a slight shock in the brake
pedal and hear the operating sound of
ABS from the engine compartment just
after the vehicle is started. This is caused
by an automatic functional test of the ABS
system being carried out and does not
indicate any abnormal condition. &
ABS warning light
The ABS warning light illuminates when
the ignition switch is turned to the “ON ”
position and turns off after approximately 2seconds.
This is an indication that the ABS system
is working properly.
CAUTION
If the warning light behaves as
follows, the ABS system may not
be working properly.
When the warning light is on, the
ABS function shuts down; however,
the conventional brake system con-
tinues to operate normally. . The warning light does not illu- Starting and operating
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&Steps to take if EBD system malfunctions
If a malfunction occurs in the EBD system,
the system stops working and the brake
system warning light and ABS warning
light illuminate simultaneously.
The EBD system may be malfunctioning if
the brake system warning light and ABS
warning light illuminate simultaneously
during driving.
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
applied harder than usual and the vehi-cle’s motion may therefore become some-
what 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 turn off, the EBD system
may be malfunctioning.
Drive carefully to the nearest SUBARU
dealer and have the system inspected.
4. If both warning lights illuminate again
and remain 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 systeminspected.
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.
WARNING
. Driving with the brake system
warning light on is dangerous.
This indicates your brake system
may not be working properly. If the light remains on, have the
brakes inspected by a SUBARU
dealer immediately.
. If at all in doubt about whether
the brakes are operating prop-
erly, do not drive the vehicle.
Have your vehicle towed to the
nearest SUBARU dealer for re-
pair. Starting and operating
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NOTE .Slight twitching of the brake pedal
may be felt when the Vehicle Dynamics
Control system operates; a small de-
gree of vehicle or steering wheel shak-
ing may also be noticed in this situa-
tion. These are normal characteristics
of Vehicle Dynamics Control operation
and are no cause for alarm.. When driving off immediately after
starting the engine, a short-lived opera-
tion noise may be noticed coming from
the engine compartment. This noise is
generated as a result of a check being
performed on the Vehicle Dynamics
Control system and is normal.. Depending on the timing of activa-
tion of the brakes, the brake pedal may
seem to jolt when you drive off after
starting the engine. This is a conse-
quence of the Vehicle Dynamics Con-
trol operational check and is normal.. In the circumstances shown in the
following list, the vehicle may be more
unstable than it feels to the driver. The
Vehicle Dynamics Control System may
therefore operate. Such operation does
not indicate a system fault.
–on gravel-covered or rutted
roads – on unfinished roads
– when the vehicle is towing a trailer–
when the vehicle is fitted with
snow tires or winter tires
. Activation of the Vehicle Dynamics
Control system will cause operation of
the steering wheel to feel slightly
different compared to that for normalconditions. . Even if the vehicle is equipped with
a Vehicle Dynamics Control system, it
is important that winter tires be used
when driving on snow-covered or icy
roads. (All four wheels should be fitted
with tires of the same size and brand.) . It is always important to reduce
speed when appro aching a corner,
even if the vehicle is equipped with
Vehicle Dynamics Control. . All four wheels should be fitted with
tires of the same size, type, and brand;
furthermore, the amount of wear
should be the same for all four tires. If
these precautions are not observed
and non-matching tires are used, it is
quite possible that the Vehicle Dy-
namics Control system will be unable
to operate correctly as intended. . Always turn off the engine before
replacing a tire as failure to do so may
render the Vehicle Dynamics Control
system unable to operate correctly. &
Vehicle Dynamics Control
system monitor
! Vehicle Dynamics Control warning
light/Vehicle Dynamics Control op-
eration 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
Because the Vehicle Dynamics Con-
trol system controls each brake Starting and operating
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7-30Starting and operating
through the ABS, whenever the ABS
stops operating due to a malfunc-
tion in that electrical system, the
Vehicle Dynamics Control will also
become unable to control all four
brakes. Thus Vehicle Dynamics
Control system operation halts and
the warning light illuminates.
Although both the Vehicle Dynamics
Control system and the ABS will be
inoperable in this situation, it will
still be possible to stop the vehicle
using normal braking. The Vehicle
Dynamics Control system and the
ABS do not adversely affect opera-
tion 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 inspec-
tion of those systems at the first
available opportunity.
NOTE . When a malfunction has occurred in
the Vehicle Dynamics Control electrical
system, only the warning light will
illuminate. In such an event, the ABS
will still be operating normally.. The warning light will also illuminate
when a problem occurs with the ABS or
Vehicle Dynamics Control electronic control systems.
The warning 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 Dy-
namics Control system is operating nor-
mally.
The following situations could indicate a
malfunction of the Vehicle Dynamics
Control system. If any of these situations
occur, have an authorized SUBARU deal-
er carry out an inspection of the system at
the first available opportunity. . The warning light does not illuminate
when the ignition switch is turned to the
ON position. . The warning light illuminates while the
vehicle is being driven.
NOTE
When the warning light turns on and off
in the following way, it indicates that
the Vehicle Dynamics Control system
is operating normally. . Although illuminating after the en-
gine has been started, the warning light
quickly turns off and remains off.. The warning light illuminates when
the vehicle is being driven, it then turns
off and remains off. !
Vehicle Dynamics Control operation
indicator light
The indicator light flashes during activa-
tion of the skid suppression function and
during activation of the traction controlfunction.
NOTE . The indicator light may remain illu-
minated for a while after the engine has
been started, especially in cold weath-
er. This occurs because the engine has
not yet warmed up and is completely
normal. The light will turn off when the
engine has reached a suitable operat-
ing temperature.. When an engine problem occurs
and the CHECK ENGINE warning light/
malfunction indicator lamp illuminates,
the indicator light will also illuminate.
The following two situations could indicate
malfunction of the Vehicle Dynamics
Control system. If either of these situa-
tions occurs, have an authorized
SUBARU dealer carry out an inspection
of that system at the first available
opportunity. . The indicator light does not illuminate
when the ignition switch is turned to the
ON position. . The indicator light fails to turn off after
the engine is started, even when several

!To decrease the speed (by brake pedal)
1. Depress the brake pedal to release
cruise control temporarily.
2. When the speed decreases to the
desired speed, press the “RES/SET ”
switch to the “SET ”side once. Now the
desired speed is set and the vehicle will
keep running at that speed without de-
pressing the accelerator pedal. &
Cruise control indicator light
The cruise control indicator light illumi-
nates when the ignition switch is turned tothe “ON ”position and turns off after
approximately 3 seconds.
The light illuminates when the “CRUISE ”
main switch is pressed. NOTE . If you press the “CRUISE ”main
switch button while turning the ignition switch “ON ”, the cruise control func-
tion is deactivated and the cruise
control indicator light flashes. To re-
activate 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 indicator 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.
The light illuminates when vehicle speed
has been set. Starting and operating
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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.
. Keep the trunk lid (Legacy) or
rear gate (Outback) closed while
driving to prevent exhaust gas
from entering the vehicle.
NOTE
Due to the expansion and contraction
of the metals used in the manufacture
of the exhaust system, you may hear a
crackling sound coming from the ex-
haust system for a short time after the
engine has been shut off. This sound isnormal. Catalytic converter
WARNING
. 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 tempera-tures.
. Keep everyone and flammable
materials away from the exhaust
pipe while the engine is running.
The exhaust gas is very hot.
2.5 L non-turbo models
2.5 L turbo models
3.6 L models
The catalytic converter is installed in the
exhaust system. It serves as catalyst to
reduce HC, CO and NOx in exhaust
gases, thus providing cleaner exhaust. Driving tips
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8-4Driving tips
To avoid damage to the catalytic conver- ter: .Use only unleaded gasoline. Even a
small amount of leaded gasoline will
damage the catalytic converter. . Never start the engine by pushing or
pulling the vehicle.. Avoid racing the engine.
. Never turn off the ignition switch while
the vehicle is moving.. Keep your engine tuned-up. If you feel
the engine running rough (misfiring, back-
firing or incomplete combustion), have
your vehicle checked and repaired by an
authorized SUBARU dealer. . Do not apply undercoating or rust
prevention treatment to the heat shield of
catalytic converter and the exhaust sys-tem. . Do not drive with an extremely low fuel
level. Periodic inspections
To keep your vehicle in the best condition
at all times, always have the recom-
mended maintenance services listed in
the maintenance schedule in the
“War-
ranty and Maintenance Booklet ”per-
formed at the specified time or mileageintervals. Driving in foreign countries
When planning to use your vehicle in
another country: .
Confirm the availability of the correct
fuel. Refer to “Fuel requirements ”F 7-2.
. Comply with all regulations and re-
quirements of each country.