2017 SUBARU LEGACY check engine

Ventilator control................................................. 4-2
Center ventilators ................................................ 4-2
Side ventilators ................................................... 4-2
Rear ventilators (if equipped) ............................... 4-2
Climate control panel.......................................... 4-3
Type A ................................................................ 4-3
Type B ................................................................ 4-4
Automatic climate control system (type B) ....... 4-5Sensors.............................................................. 4-5
Manual climate control ....................................... 4-6Airflow mode selection........................................ 4-6
Temperature control ............................................ 4-7
Fan speed control ............................................... 4-8
Air conditioner control ........................................ 4-8
Air inlet selection ................................................ 4-8
Defrosting............................................................ 4-9 Operating tips for heater and air
conditioner ........................................................ 4-9
Cleaning ventilator grille ...................................... 4-9
Efficient cooling after parking in direct sunlight ............................................................. 4-9
Lubrication oil circulation in the refrigerant circuit .............................................................. 4-10
Checking air conditioning system before summer season ............................................................ 4-10
Cooling and dehumidifying in high humidity and low temperature weather condition ................... 4-10
Air conditioner compressor shut-off when engine is heavily loaded .............................................. 4-10
Refrigerant for your climate control system ... ..... 4-10
Air filtration system (if equipped)..................... 4-10Replacing an air filter......................................... 4-11
Climate control
4

Climate control/Air filtration system
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 steep
upgrade.
&Refrigerant for your climate
control system
Your air conditioner uses ozone friendly
refrigerant HFO-1234yf. Therefore, the
method of adding, changing or checking
the refrigerant is different from the method
for CFC12 (freon) or HFC134a. Consult
your SUBARU dealer for service. Repairs
needed as a result of using the wrong
refrigerant are not covered under war-
ranty.
Air filtration system (if
equipped)
Your vehicle’ s air conditioning system is
equipped with an air filtration system.
Replace the air filter element according
to the replacement schedule shown in the
following table. This schedule should be
followed to maintain the filter ’sdust
collection ability. Under extremely dusty
conditions, the filter should be replaced
more frequently. Have your filter checked
or replaced by your SUBARU dealer. For
replacement, use only a genuine
SUBARU air filter kit. For the replacement
schedule, refer to the “Warranty and
Maintenance Booklet ”.
CAUTION
Contact your SUBARU dealer if the
following occurs, even if it is not yet
time to change the filter.
.Reduction of the airflow through
the vents.
. Windshield gets easily fogged or
misted.
NOTE
The filter can influence the air condi-
tioning, heating and defroster perfor-
4-10

A rear view camera is attached to the
trunk lid (Legacy) or rear gate (Outback).
When the ignition switch is“ON ”and the
shift lever (MT models) or select lever
(CVT models) is set to “R”, the rear view
camera automatically displays the rear
view image behind the vehicle on the
audio/navigation monitor.
WARNING
. Since the rear view camera uses
a wide-angle lens, the image on
the monitor is different from the
actual view in terms of distance.
. Since the range of the image on
the monitor is limited, you should
always check the rear view and
the surrounding area with your
eyes and mirrors, and move
backward at a slow speed. Mov-
ing backward only by checking
the rear view image from the
camera could cause an accident.
. Do not disassemble or modify the
camera, switch or wiring. If
smoke comes out or you smell
a strange odor, stop using the
rear view camera immediately.
Contact your SUBARU dealer
for an inspection. Continued use
may result in accident, fire or electric shock.
CAUTION
.
If your vehicle is washed with a
high-pressure washer, do not
allow water to contact the camera
directly. Entry of water in the
camera lens may result in con-
densation, malfunction, fire or
electric shock.
. Since the camera is a precision
device, do not subject it to strong
impacts. Otherwise, malfunction,
fire or electric shock may occur.
. If mud or snow sticks to or is
frozen on the camera, you must
be very careful removing it.
Otherwise, damage done to the
camera may cause a fire or
electric shock. Pour water or
lukewarm water over the camera
to remove mud and ice, and wipe
it with a soft, dry cloth.
. Do not put a flame close to the
camera or wiring. Otherwise, da-
mage or fire may occur.
. When replacing the fuse, be sure
to use a fuse with the specified
rating. Use of a fuse with a
different rating may result in a malfunction.
. If the rear view camera is used for
a long time while the engine is
not operated, the battery may
become completely discharged.
NOTE
. Do not wipe the camera with alcohol,
benzine or paint thinner. Otherwise,
discoloration may occur. To remove
contamination, wipe the camera with a
cloth moistened with a diluted neutral
detergent and then wipe it with a soft,
dry cloth.
. When waxing the vehicle, be careful
not to apply the wax to the camera. If it
comes in contact with the camera,
moisten a clean cloth with a diluted
neutral detergent to remove the wax.
. The camera lens has hard coating to
help prevent scratches. However, when
washing the vehicle or cleaning the
camera lens, be careful not to scratch
the camera lens. Do not use a washing
brush directly on the camera lens. The
monitor screen may be adversely af-
fected.
. Strong light shined on the camera
lens may develop white light stripes
around the light source. This is not a
malfunction.
Interior equipment/Rear view camera
–CONTINUED –6-21

Fuel...................................................................... 7-3
Fuel requirements ............................................... 7-3
Fuel filler lid and cap ........................................... 7-4
State emission testing (U.S. only) ...................... 7-7
Preparing to drive ............................................... 7-8
Starting and stopping the engine (models without push-button ignition switch) .............. 7-9
General precautions when starting/stopping
engine .............................................................. 7-9
Starting engine ................................................... 7-10
Stopping the engine ........................................... 7-11
Steering lock ...................................................... 7-11
Starting and stopping engine (models with
push-button start system) .............................. 7-12
Safety precautions............................................. 7-12
Operating range for push-button start system ............................................................. 7-12
Starting engine ................................................... 7-12
Stopping engine ................................................. 7-14
When access key does not operate properly ....... 7-14
Steering lock ...................................................... 7-14
Remote engine start system (dealer
option) .............................................................. 7-15
Models with “keyless access with push-button
start system ”................................................... 7-16
Models without “keyless access with push-button
start system ”................................................... 7-17
Entering the vehicle while it is running via remote start ................................................................. 7-20
Entering the vehicle following remote engine start shutdown ......................................................... 7-20 Pre-heating or pre-cooling the interior of the
vehicle ............................................................ 7-20
Service mode (models without “keyless access
with push-button start system ”) ....................... 7-20
Remote transmitter program (models without “keyless access with push-button start
system ”).......................................................... 7-20
System maintenance .......................................... 7-21
Manual transmission ......................................... 7-23Selecting reverse gear ....................................... 7-23
Shifting speeds .................................................. 7-24
Driving tips ........................................................ 7-24
Continuously variable transmission ................. 7-25Select lever....................................................... 7-26
Shift lock function ............................................. 7-28
Selection of manual mode .................................. 7-29
Driving tips ........................................................ 7-31
Power steering ................................................... 7-31
Braking ............................................................... 7-32
Braking tips ....................................................... 7-32
Brake system .................................................... 7-32
Disc brake pad wear warning indicators ............. 7-33
ABS (Anti-lock Brake System).......................... 7-33
ABS self-check.................................................. 7-34
ABS warning light .............................................. 7-34
Electronic Brake Force Distribution (EBD)
system ............................................................. 7-34
Steps to take if EBD system malfunctions .......... 7-34
Vehicle Dynamics Control system.................... 7-35Vehicle Dynamics Control system monitor .......... 7-37
Vehicle Dynamics Control OFF switch ................ 7-37
Starting and operating
7

Fuel
CAUTION
Use of a fuel which is low in quality
or use of an inappropriate fuel
additive may cause damage to the
engine and/or fuel system.
&Fuel requirements
The engine is designed to operate using
unleaded gasoline with an octane rating
of 87 AKI (90 RON) or higher .
! Fuel octane rating
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.
!RON
This octane rating is the Research Octane
Number. !
AKI
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).
! 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 light 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 light 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
Starting and operating/Fuel
–CONTINUED –7-3

Starting and operating/Fuel
ping mechanism may not func-
tion, causing fuel to overflow the
tank and creating a fire hazard.
. Stop refueling when the auto-
matic stop mechanism on the
fuel nozzle activates. If you con-
tinue to add fuel, temperature
changes or other conditions
may cause fuel to overflow from
the tank and create a fire hazard.
6. Stop filling the tank after the fuel filler
pump automatically stops. Do not add any
more fuel.
7. 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.
CAUTION
Make sure that the cap is tightened
until it clicks to prevent fuel spillage
in the event of an accident.
8. Close the fuel filler lid completely.
CAUTION
If you spill any fuel on the painted
surface, rinse it off immediately.
Otherwise, the painted surface could be damaged.
NOTE
.
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.
. 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/malfun ction indicator
light may illuminate. Refer to “CHECK
ENGINE warning light/Malfunction in-
dicator light ”F 3-16.
CAUTION
. Never add any cleaning agents to
the fuel tank. The addition of a
cleaning agent may cause da-
mage to the fuel system.
. After refueling, turn the cap to the
right until it clicks to ensure that
it is fully tightened. If the cap is
not securely tightened, fuel may
leak out while the vehicle is being
driven or fuel spillage could
occur in the event of an accident,
creating a fire hazard.
. Do not let fuel spill on the exterior
surfaces of the vehicle. Because
fuel may damage the paint, be
sure to wipe off any spilled fuel
quickly. Paint damage caused by
spilled fuel is not covered under
the SUBARU Limited Warranty.
. Always use a genuine SUBARU
fuel filler cap. If you use the
wrong cap, it may not fit, and
your fuel tank and emission con-
trol system may be damaged. It
could also lead to fuel spillage
and a fire.
. Immediately put fuel in the tank
whenever the low fuel warning
light illuminates. Engine misfires
7-6

as a result of an empty tank
could cause damage to the en-
gine. Continuing to operate your
vehicle at an extremely low fuel
level may result in a reduction of
engine performance.State emission testing (U.S.
only)
WARNING
Testing of an All-Wheel Drive model
must NEVER be performed on a
single two-wheel dynamometer. At-
tempting to do so will result in
uncontrolled vehicle movement and
may cause an accident or injuries to
persons nearby.
CAUTION
.At state inspection time, remem-
ber to tell your inspection or
service station in advance not to
place your SUBARU AWD vehicle
on a two-wheel dynamometer.
Otherwise, serious transmission
damage will result.
. Resultant vehicle damage due to
improper testing is not covered
under the SUBARU Limited War-
ranty and is the responsibility of
the state inspection program or
its contractors or licensees.
California and a number of federal states have Inspection/Maintenance programs to
inspect your vehicle
’s emission control
system. If your vehicle does not pass this
test, some states may deny renewal of
your vehicle’ s registration.
Your vehicle is equipped with a computer
that monitors the performance of the
engine’ s emission control system. Certi-
fied emission inspectors will inspect the
On-Board Diagnostic (OBDII) system as
part of the state emission inspection
process. The OBDII system is designed
to detect engine and transmission pro-
blems that might cause the vehicle emis-
sions to exceed allowable limits. OBDII
inspections apply to all 1996 model year
and newer passenger cars and trucks.
Over 30 states plus the District of Colum-
bia have implemented emission inspec-
tion of the OBDII system.
. The inspection of the OBDII system
consists of a visual operational check of
the “CHECK ENGINE ”warning light/mal-
function indicator light (MIL) and an
examination of the OBDII system with an
electronic scan tool.
. A vehicle
passes the OBDII system
inspection if proper operation of the
“CHECK ENGINE ”warning light is ob-
served, there are no stored diagnostic
trouble codes, and the OBDII readiness
monitors are all complete.
Starting and operating/State emission testing (U.S. only)
–CONTINUED –7-7

Starting and operating/Preparing to drive
.A vehiclefails the OBDII inspection if
the “CHECK ENGINE ”warning light is not
properly operating (light is illuminated or is
not working due to a burned out bulb) or
there is one or more diagnostic trouble
codes stored in the vehicle’ s computer.
. A state emission inspection may reject
(not pass or fail) a vehicle if the number of
OBDII system readiness monitors “NOT
READY ”is greater than one. If the
vehicle’ s battery has been recently re-
placed or disconnected, the OBDII system
inspection may indicate that the vehicle is
not ready for the emission test. Under this
condition, the vehicle driver should be
instructed to drive his/her vehicle for a few
days to reset the readiness monitors and
return for an emission re-inspection.
. Owners of rejected or failing vehicles
should contact their SUBARU Dealer for
service.
Some states still use dynamometers in
their emission inspection program. A
dynamometer is a treadmill or roller-like
testing device that allows your vehicle ’s
wheels to turn while the vehicle remains in
one place. Prior to your vehicle being put
on a dynamometer, tell your emission
inspector
not to place your SUBARU
AWD vehicle on a two-wheel dynam-
ometer. Otherwise, serious transmis-
sion damage will result. The U.S. Environmental Protection
Agency (EPA) and states using two-wheel
dynamometers in their emission testing
program have EXEMPTED SUBARU
AWD vehicles from the portion of the
testing program that involves a two-wheel
dynamometer. There are some states that
use four-wheel dynamometers in their
testing program. When properly used, this
equipment should not damage a SUBARU
AWD vehicle.
Under no circumstances should the rear
wheels be jacked off the ground, nor
should the driveshaft be disconnected for
state emission testing.
Preparing to drive
You should perform the following checks
and adjustments every day before you
start driving.
1. Check that all windows, mirrors, and
lights are clean and unobstructed.
2. Check the appearance and condition
of the tires. Also check tires for proper
inflation.
3. Look under the vehicle for any sign of
leaks.
4. Check that the hood, trunk (Legacy)
and rear gate (Outback) are fully closed.
5. Check the adjustment of the seat.
6. Check the adjustment of the inside
and outside mirrors.
7. Fasten your seatbelt. Check that your
passengers have fastened their seatbelts.
8. Check the operation of the warning
and indicator lights when the ignition
switch is turned to the
“ON”position.
9. Check the gauges, indicator and warn-
ing lights after starting the engine.
10. Check that no small animals enter the
engine compartment.
7-8