2010 SUBARU LEGACY check engine light

&Recommended grade and
viscosity under severe driv-
ing conditions
If the vehicle is used in desert areas, in
areas with very high temperatures, or
used for heavy-duty applications such as
towing a trailer, use of oil with the following
grade and viscosities is recommended.
API classification SM or SL: SAE viscosity No.:30, 40, 10W-50, 20W-40, 20W-50 Cooling system
WARNING
Never attempt to remove the radia-
tor cap until the engine has been
shut off and has cooled down
completely. Since the coolant is
under pressure, you may suffer
serious burns from a spray of boil-
ing hot coolant when the cap isremoved.
CAUTION
. Vehicles are filled at the factory
with SUBARU Super Coolant that
does not require the first change
for 11 years/137,500 miles (11
years/220,000 km). This coolant
should not be mixed with any
other brand or type of coolant
during this period. Mixing with a
different coolant will reduce the
life of the coolant. Should it be
necessary to top off the coolant
for any reason, use only
SUBARU Super Coolant.
If the SUBARU Super Coolant is
diluted with another brand or
type, the maintenance interval is shortened to that of the mixingcoolant.
. Do not splash the engine coolant
over painted parts. The alcohol
contained in the engine coolant
may damage the paint surface.
& Cooling fan, hose and con- nections
Your vehicle employs an electric cooling
fan which is thermostatically controlled to
operate when the engine coolant reaches
a specific temperature.
If the radiator cooling fan does not operate
even when the coolant temperature high
warning light illuminates, the cooling fan
circuit may be defective. Check the fuse
and replace it if necessary. Refer to“ Fuses ”F 11-48 and “Fuses and circuits ”
F 12-6. If the fuse is not blown, have the
cooling system checked by your SUBARU
dealer.
If frequent addition of coolant is neces-
sary, there may be a leak in the engine
cooling system. It is recommended that
the cooling system and connections be
checked for leaks, damage, or looseness. Maintenance and service
11-17
– CONTINUED –

11-32Maintenance and service
Use only clutch fluid from a sealed
container. &Recommended clutch fluid
FMVSS No. 116, fresh DOT 3 or 4 brake fluid
CAUTION
Avoid mixing DOT 3 and DOT 4
brake fluids even if they are of the
same brand. Brake booster
If the brake booster does not operate as
described in the following procedure, have
it checked by your SUBARU dealer.
1. With the engine off, depress the brake
pedal several times, applying the same
pedal force each time. The distance the
pedal travels should not vary.
2. With the brake pedal depressed, start
the engine. The pedal should move
slightly down to the floor.
3. With the brake pedal depressed, stop
the engine and keep the pedal depressed
for 30 seconds. The pedal height should
not change.
4. Start the engine again and run for
approximately 1 minute then turn it off.
Depress the brake pedal several times to
check the brake booster. The brake
booster operates properly if the pedal
stroke decreases with each depression. NOTE
When you depress the brake pedal
strongly or suddenly, the following
phenomena occur. However, even
though these occur, they do not indi-
cate any malfunctions, and the brake
assist system is operating properly. .
You might feel that the brake pedal is applied by lighter force and gener-
ates a greater braking force..
You might hear the sound of ABS
operating from the engine compart-ment.
Brake assist is not a system that brings
more braking ability to the vehicle
beyond its breaking capability.

Brake pedal
Check the brake pedal free play and
reserve distance according to the main-
tenance schedule in the“Warranty and
Maintenance Booklet ”.
& Checking the brake pedal
free play
1) 0.08 –0.18 in (2 –5 mm)
Stop the engine and firmly depress the
brake pedal several times. Lightly pull the
brake pedal up with one finger to check
the free play with a force of less than 2 lbf
(10 N, 1 kgf).
If the free play is not within proper
specification, contact your SUBARU deal-
er. &
Checking the brake pedal
reserve distance
1) More than 2.56 in (65 mm)
Depress the pedal with a force of approxi-
mately 66 lbf (294 N, 30 kgf) and measure
the distance between the upper surface of
the pedal pad and the floor.
When the measurement is smaller than
the specification, or when the pedal does
not operate smoothly, contact with your
SUBARU dealer. Clutch pedal (MT models)
Check the clutch pedal free play and
reserve distance according to the main-
tenance schedule in the
“Warranty and
Maintenance Booklet ”.
& Checking the clutch function
Check the clutch engagement and disen-gagement.
1. With the engine idling, check that there
are no abnormal noises when the clutch
pedal is depressed, and that shifting into
1st or reverse feels smooth.
2. Start the vehicle by releasing the pedal
slowly to check that the engine and
transmission smoothly couple without
any sign of slippage. Maintenance and service
11-33
– CONTINUED –

11-42Maintenance and service
Aluminum wheels
Aluminum wheels can be scratched and
damaged easily. Handle them carefully to
maintain their appearance, performance,
and safety. .When any of the wheels is removed
and replaced for tire rotation or to change
a flat, always check the tightness of the
wheel nuts after driving approximately 600
miles (1,000 km). If any nut is loose,
tighten it to the specified torque. . Never apply oil to the threaded parts,
wheel nuts, or tapered surface of the wheel. . Never let the wheel rub against sharp
protrusions or curbs.. When wheel nuts, balance weights, or
the center cap is replaced, be sure to
replace them with genuine SUBARU parts
designed for aluminum wheels. Windshield washer fluid
CAUTION
Never use engine coolant as washer
fluid because it could cause paintdamage.
If you spray washer fluid on the windshield
but the windshield washer fluid warning
light illuminates or the supply of washer
fluid runs out, add washer fluid in the tank.
Remove the washer tank filler cap, then
add fluid until it reaches the “FULL ”mark
on the tank.
Use windshield washer fluid. If windshield
washer fluid is unavailable use clean
water.

System................................................................. 7-24
Brake pedal Free play ............................................................. 11-33
Reserve distance .................................................. 11-33
Brake system ............................................................ 7-24
Warning light ......................................................... 3-17
Braking ..................................................................... 7-23
Tips...................................................................... 7-23
Breaking-in of new brake pads and linings ................... 11-34
Bulb Chart .................................................................. 12-10
Replacing ............................................................. 11-50
C Capacities ................................................................. 12-4
Cargo area Cover ................................................................... 6-15
Light ....................................................................... 6-3
Tie-down hooks ..................................................... 6-17
Catalytic converter ....................................................... 8-3
Center Console .................................................................. 6-6
Ventilators ............................................................... 4-3
Changing
Coolant ................................................................ 11-18
Flat tire ................................................................... 9-6
Oil and oil filter ..................................................... 11-14
Charge warning light .................................................. 3-14
CHECK ENGINE warning light/Malfunction indicator lamp ...................................................................... 3-12 Checking
Brake pedal free play ............................................ 11-33
Brake pedal reserve distance ................................. 11-33
Clutch function ..................................................... 11-33
Clutch pedal free play ........................................... 11-34
Coolant level ........................................................ 11-18
Fluid level (automatic transmission fluid) .................. 11-24
Fluid level (brake fluid) .......................................... 11-30
Fluid level (clutch fluid) .......................................... 11-31
Fluid level (power steering fluid) .. ........................... 11-29
Fluid level (washer fluid) ........................................ 11-42
Oil level (engine oil) .............................................. 11-12
Oil level (front differential gear oil) .......................... 11-26
Oil level (manual transmission oil) .......................... 11-23
Oil level (rear differential gear oil) ........................... 11-27
Child restraint systems ................................................ 1-25
Installation of a booster seat .................................... 1-31
Installation with A/ELR seatbelt ... ............................. 1-28
Lower and tether anchorages ................................... 1-33
Top tether anchorages ............................................ 1-35
Child safety ................................................................... 5
Locks .................................................................... 2-20
Chime Key........................................................................ 3-4Light ..................................................................... 3-27
Seatbelt. ........................................................ 1-14, 3-10
Cleaning Aluminum wheels ................................................... 10-3
Interior .................................................................. 10-5
Ventilation grille ...................................................... 4-14 Index
14-3

Dome........................................................... 6-2, 11-58
Door step ............................................................. 11-60
Front fog ...................................................... 3-30, 11-53
Front position ....................................................... 11-53
Ignition switch .......................................................... 3-4
License plate ........................................................ 11-57
Map ............................................................. 6-2, 11-59
Rear combination .................................................. 11-54
Tail and rear side marker (Outback) ......................... 11-55
Tail/Back-up (Outback) ........................................... 11-56
Trunk ................................................................... 11-60
Turn signal ......................................... 3-29, 11-53, 11-54
Vanity mirror .................................................. 6-5, 11-59
Loading your vehicle .................................................. 8-12
Low fuel warning light ........................................... 3-8, 3-19
Low tire pressure warning light .................................... 3-15
Lower and tether anchorage ........................................ 1-33
M
Main fuse ................................................................. 11-50
Maintenance
Precautions ........................................................... 11-3
Schedule .............................................................. 11-3
Seatbelt ................................................................ 1-22
Tips...................................................................... 11-5
Tools ...................................................................... 9-3
Malfunction indicator lamp (check engine warning light) ..................................... 3-12
Manual Climate control system ............................................. 4-4
Mode .................................................................... 7-21 Seat
....................................................................... 1-3
Transmission ......................................................... 7-16
Transmission oil ................................................... 11-23
Map light ........................................................... 6-2, 11-59
Maximum load limits ................................................... 8-19
Meters and gauges ...................................................... 3-5
Mirror defogger .......................................................... 3-34
Mirrors ...................................................................... 3-36
Moonroof ........................................................... 2-28, 9-20
Multi function display ................................................... 3-24
N
New vehicle break-in driving ......................................... 8-2
OOdometer ................................................................... 3-6
Off road driving ........................................................... 8-6
Oil filter ................................................................... 11-14
Oil level
Engine ................................................................ 11-12
Front differential gear ............................................ 11-26
Manual transmission ............................................. 11-23
Rear differential gear ............................................ 11-27
Warning light .......................................................... 3-14
Oil pressure warning light ............................................ 3-14
Outside
Mirror defogger ...................................................... 3-34
Mirrors .................................................................. 3-38
Overhead console ....................................................... 6-8
Overheating engine .................................................... 9-12 Index
14-7

W
Warning and indicator lights.......................................... 3-9
Warning light
ABS ............................................................. 3-16, 7-25
All-Wheel Drive ...................................................... 3-20
AT OIL TEMP ........................................................ 3-15
Brake system ........................................................ 3-17
Charge ................................................................. 3-14
CHECK ENGINE ................................................... 3-12
Coolant temperature high ........................................ 3-13
Door open ............................................................. 3-20
Engine low oil level ................................................ 3-14
Low fuel .......................................................... 3-8, 3-19
Low tire pressure ................................................... 3-15
Oil pressure .......................................................... 3-14
Seatbelt ........................................................ 1-14, 3-10
SRS airbag system ................................................ 3-11
Vehicle Dynamics Control ............................... 3-20, 7-29
Windshield washer fluid .......................................... 3-20
Warranties ..................................................................... 1
Warranties and maintenance ....................................... 8-19
Washing ................................................................... 10-2
Waxing and polishing ................................................. 10-3
Wear indicators ......................................................... 11-39
Wheel Alignment .............................................................. 12-5
Aluminum ............................................................. 11-42
Balance ............................................................... 11-39
Replacement ........................................................ 11-41
Windows ................................................................... 2-21 Windshield
Washer fluid. ........................................................ 11-42
Wiper and washer switches ..................................... 3-32
Wiper blades ........................................................ 11-44
Wiper deicer .......................................................... 3-34
Winter
Driving ................................................................... 8-8
Tires ........................................................... 8-10, 11-35
Wiper and washer ...................................................... 3-31
Wiper deicer .............................................................. 3-34 Index
14-11