maintenance SUBARU IMPREZA WRX STI 2011 User Guide

Black plate (13,1)
北米Model "A1110BE-C" EDITED: 2010/ 11/ 17
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 the engine .............................................. 7-9
MT models.......................................................... 7-9
AT models ........................................................... 7-9
Stopping the engine ........................................... 7-10
Remote engine start system (dealer option) .............................................................. 7-11
Starting your vehicle .......................................... 7-11
Remote start safety features ............................... 7-11
Entering the vehicle while it is running via remote start ................................................................. 7-12
Entering the vehicle following remote engine start shutdown ......................................................... 7-12
Pre-heating or pre-cooling the interior of the vehicle ............................................................. 7-12
Service mode ..................................................... 7-12
Remote engine start transmitter programming and programmable feature option ..................... 7-12
System maintenance .......................................... 7-13
Manual transmission –6 speeds (STI) ............. 7-15
Selecting reverse gear ........................................ 7-15
Shifting speeds .................................................. 7-16
Driving tips ........................................................ 7-16
Manual transmission –5 speeds (except
STI) ................................................................... 7-17
Shifting speeds .................................................. 7-17
Driving tips ........................................................ 7-18
Driver’s Control Center Differential (DCCD)
(STI) ................................................................. 7-18
To change mode of driver ’s control center
differential ....................................................... 7-19
Auto mode ........................................................ 7-19
Manual mode ..................................................... 7-20
Temporary release ............................................. 7-22
Automatic transmission .................................... 7-22
Select lever....................................................... 7-23
Shift lock function ............................................. 7-24
Selection of manual mode .................................. 7-26
Driving tips ........................................................ 7-27
SPORT mode ..................................................... 7-28
SI-DRIVE (STI) .................................................... 7-28
Intelligent (I) mode ............................................. 7-28
Sport (S) mode .................................................. 7-29
Sport Sharp (S#) mode. ...................................... 7-29
SI-DRIVE selector .............................................. 7-30
Limited slip differential (LSD) (STI) .................. 7-30
Power steering ................................................... 7-31
Braking ............................................................... 7-31
Braking tips ....................................................... 7-31
Brake system .................................................... 7-31
Disc brake pad wear warning indicators ............. 7-32
ABS (Anti-lock Brake System).......................... 7-32
ABS system self-check...................................... 7-33
ABS warning light .............................................. 7-33
Electronic Brake Force Distribution (EBD)
system ............................................................. 7-33
Steps to take if EBD system malfunctions ..... ..... 7-33
Starting and operating
7

Black plate (281,1)
北米Model "A1110BE-C" EDITED: 2010/ 12/ 17
not. Remote engine start transmitter pro-
gramming and feature programming can
be adjusted using the following procedure.
1. Open the driver ’s door (the driver ’s
door must remain opened throughout the
entire process).
2. Insert the key into the vehicle ’s ignition
switch and turn to the “ON”position.
3. Locate the small black programming
button behind the fuse box cover, on the
driver ’s side left under the dashboard
panel.
4. Press and hold the black programming
button for 10 to 15 seconds. The horn will
honk and the turn signal lights will flash
three times to indicate that the system has
entered programming mode. At this point
you can proceed to either step 5 or step 6.
5. To program a remote engine start
transmitter: press and release the “
”
button on each transmitter. The horn will
honk and the turn signal lights will flash
one time to indicate a successful trans-
mitter learn each time the “
”button is
pressed. You can program up to eight
transmitters.
6. To toggle the Horn Confirmation chirps
ON/OFF: depress and release the brake
pedal to toggle the feature. The horn will
chirp and the turn signal lights will flash
one time to indicate Confirmation Horn
Chirps are “OFF”. The horn will honk and the turn signal lights will flash 2 times to
indicate Confirmation Horn Chirps are
“ON
”. Depressing the brake pedal repeat-
edly will toggle the feature ON or OFF
each time.
7. To exit the remote engine start trans-
mitter and feature programming mode,
turn the ignition switch to the “LOCK”
position, remove the key from the ignition
switch and test operation of the remote
engine start transmitter(s) and horn con-
firmation feature.
& System maintenance! Changing the batteries
CAUTION
.Do not let dust, oil or water get on
or in the remote engine start
transmitter when replacing the
battery.
. Be careful not to damage the
printed circuit board in the re-
mote engine start transmitter
when replacing the battery.
. Be careful not to allow children to
touch the battery and any re-
moved parts; children could
swallow them.
. There is a danger of explosion if an incorrect replacement battery
is used. Replace only with the
same or equivalent type of bat-
tery.
. Batteries should not be exposed
to excessive heat such as sun-
shine, fire or the like.
The two 3-volt lithium batteries (model
CR-1220 ) supplied in your remote engine
start transmitter should last approximately
3 years, depending on usage. When the
batteries begin to weaken, you will notice
a decrease in range (distance from the
vehicle that your remote engine start
system operates). Follow the instructions
below to change the remote engine start
transmitter batteries.
Starting and operating
7-13
– CONTINUED –
7

Black plate (320,1)
北米Model "A1110BE-C" EDITED: 2010/ 12/ 17
8-4
Driving tipsoperates 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.
Periodic inspectionsTo 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 mileage
intervals.
Driving in foreign countriesWhen planning to use your vehicle in
another country:
. Confirm the availability of the correct
fuel. Refer to “Fuel requirements ”F 7-3.
. Comply with all regulations and re-
quirements of each country.

Black plate (323,1)
北米Model "A1110BE-C" EDITED: 2010/ 12/ 17
cially at higher speeds.
. Do not grip the inside or spokes of the
steering wheel. A bad bump could jerk the
wheel and injure your hands. Instead drive
with your fingers and thumbs on the
outside of the rim.
. If driving through water, such as when
crossing shallow streams, first check the
depth of the water and the bottom of the
stream bed for firmness and ensure that
the bed of the stream is flat. Drive slowly
and completely through the stream. The
water should be shallow enough that it
does not reach the vehicle’ s undercar-
riage. Water entering the engine air intake
or the exhaust pipe or water splashing
onto electrical parts may damage your
vehicle and may cause it to stall. Never
attempt to drive through rushing water;
regardless of its depth, it can wash away
the ground from under your tires, resulting
in possible loss of traction and even
vehicle rollover.
. Always check your brakes for effec-
tiveness immediately after driving in sand,
mud or water. Do this by driving slowly
and stepping on the brake pedal. Repeat
that process several times to dry out the
brake discs and brake pads.
. Do not drive or park over or near
flammable materials such as dry grass or
fallen leaves, as they may burn easily. The exhaust system is very hot while the
engine is running and right after the
engine stops. This could create a fire
hazard.
.
After driving through tall grass, mud,
rocks, sand, rivers, etc., check that there
is no grass, bush, paper, rags, stones,
sand, etc. adhering to or trapped on the
underbody. Clear off any such matter from
the underbody. If the vehicle is used with
these materials trapped or adhering to the
underbody, a mechanical breakdown or
fire could occur.
. Secure all cargo carried inside the
vehicle and make certain that it is not
piled higher than the seatbacks. During
sudden stops or jolts, unsecured cargo
could be thrown around in the vehicle and
cause injury. Do not pile heavy loads on
the roof. Those loads raise the vehicle’ s
center of gravity and make it more prone
to tip over.
. If you must rock the vehicle to free it
from sand or mud, depress the accelerator
pedal slightly and move the select lever
back and forth between “D ” and “R ”
repeatedly. Do not race the engine. For
the best possible traction, avoid spinning
the wheels when trying to free the vehicle.
When the road surface is extremely
slippery, you can obtain better traction by
starting the vehicle with the transmission in 2nd than 1st (both for MT and AT).
.
Never equip your vehicle with tires
larger than those specified in this manual.
. Frequent driving of an AWD model
under hard-driving conditions such as
rough roads or off roads will necessitate
more frequent replacement of engine oil,
brake fluid and transmission oil than that
specified in the maintenance schedule
described in the “Warranty and Mainte-
nance Booklet ”.
Remember that damage done to your
SUBARU while operating it off-road and
not using common sense precautions
such as those listed above is not eligible
for warranty coverage.
. Wash the vehicle’ s underbody after off-
road driving. Suspension components are
particularly prone to dirt buildup, so they
need to be washed thoroughly.
Driving tips
8-7
8

Black plate (17,1)
北米Model "A1110BE-C" EDITED: 2010/ 11/ 17
If you park your vehicle in case of an
emergency ........................................................ 9-2
Temporary spare tire ........................................... 9-2
Precautions for AWD models with automatic
transmission ..................................................... 9-3
Maintenance tools ............................................... 9-4
Tool bag.............................................................. 9-4
Under the rear floor ............................................. 9-5
Flat tires............................................................... 9-6
Changing a flat tire .............................................. 9-6
Tire pressure monitoring system (TPMS) (U.S.-spec. models) .......................................... 9-10
Jump starting..................................................... 9-11
How to jump start ............................................... 9-11
Engine overheating ........................................... 9-13
If steam is coming from the engine
compartment ................................................... 9-13
If no steam is coming from the engine compartment ................................................... 9-13
Towing................................................................ 9-14
Towing and tie-down hooks. ............................... 9-14
Using a flat-bed truck. ........................................ 9-17
Towing with all wheels on the ground ................. 9-17
Rear gate–if the rear gate cannot be
unlocked .......................................................... 9-18
Moonroof –if moonroof cannot be closed ...... 9-19
In case of emergency
9

Black plate (336,1)
北米Model "A1110BE-C" EDITED: 2010/ 12/ 17
9-4
In case of emergency
1) Spare fuse
2) FWD connector3. Put a spare fuse inside the FWD
connector located in the cabin and confirm
that the All-Wheel Drive warning light
“
” illuminates. The All-Wheel-Drive
capability of the vehicle has now been
deactivated.
NOTEAfter reinstalling the conventional tire,
remove the spare fuse from the FWD
connector in order to reactivate All-
Wheel Drive. Make sure to restore the
removed spare fuse in the spare fuse
holder located in the engine compart-
ment.
Maintenance toolsYour vehicle is equipped with the following
maintenance tools.
. Jack
. Jack handle
. Screwdriver
. Towing hook (eye bolt)
. Wheel nut wrench
. Hex-head wrench (only models with
moonroof)
& Tool bag1) Screwdriver
2) Wheel nut wrench
3) Hex-head wrench (only models with
moonroof)
4) Tool bagThe screwdriver and wheel nut wrench are
stored in the tool bag.

Black plate (358,1)
北米Model "A1110BE-C" EDITED: 2010/ 12/ 17
10-4
Appearance care
Corrosion protectionYour SUBARU has been designed and
built to resist corrosion. Special materials
and protective finishes have been used on
most parts of the vehicle to help maintain
fine appearance, strength, and reliable
operation.& Most common causes of
corrosionThe most common causes of corrosion
are:
1. The accumulation of moisture retain-
ing dirt and debris in body panel sections,
cavities, and other areas.
2. Damage to paint and other protective
coatings caused by gravel and stone
chips or minor accidents.
Corrosion is accelerated on the vehicle
when:
1. It is exposed to road salt or dust
control chemicals, or used in coastal
areas where there is more salt in the air,
or in areas where there is considerable
industrial pollution.
2. It is driven in areas of high humidity,
especially when temperatures range just
above freezing.
3. Dampness in certain parts of the
vehicle remains for a long time, even though other parts of the vehicle may be
dry.
4. High temperatures will cause corro-
sion to parts of the vehicle which cannot
dry quickly due to lack of proper ventila-
tion.
&
To help prevent corrosionWash the vehicle regularly to prevent
corrosion of the body and suspension
components. Also, wash the vehicle
promptly after driving on any of the
following surfaces.
. roads that have been salted to prevent
them from freezing in winter
. mud, sand, or gravel
. coastal roads
After the winter has ended, it is recom-
mended that the underbody be given a
very thorough washing.
Before the beginning of winter, check the
condition of underbody components, such
as the exhaust system, fuel and brake
lines, brake cables, suspension, steering
system, floor pan, and fenders. If any of
them are found to be rusted, they should
be given an appropriate rust prevention
treatment or should be replaced. Contact
your SUBARU dealer to perform this kind
of maintenance and treatment if you need assistance.
Repair chips and scratches in the paint as
soon as you find them.
Check the interior of the vehicle for water
and dirt accumulation under the floor mats
because that could cause corrosion.
Occasionally check under the mats to
make sure the area is dry.
Keep your garage dry. Do not park your
vehicle in a damp, poorly ventilated
garage. In such a garage, corrosion can
be caused by dampness. If you wash the
vehicle in the garage or put the vehicle
into the garage when wet or covered with
snow, that can cause dampness.
If your vehicle is operated in cold weather
and/or in areas where road salts and other
corrosive materials are used, the door
hinges and locks, trunk lid lock, and hood
latch should be inspected and lubricated
periodically.

Black plate (21,1)
北米Model "A1110BE-C" EDITED: 2010/ 11/ 17
Maintenance schedule ....................................... 11-3
Maintenance precautions ................................... 11-3
Before checking or servicing in the engine
compartment .................................................... 11-4
When checking or servicing in the engine compartment .................................................... 11-4
When checking or servicing in the engine compartment while the engine is running .......... 11-5
Engine hood....................................................... 11-5
Engine compartment overview .......................... 11-7
Non-turbo models.............................................. 11-7
Turbo models except STI .................................... 11-8
STI..................................................................... 11-9
Engine oil .......................................................... 11-10
Checking the oil level ....................................... 11-10
Changing the oil and oil filter ............................ 11-11
Recommended grade and viscosity .................. 11-13
Synthetic oil ..................................................... 11-13
Cooling system ................................................ 11-13
Cooling fan, hose and connections ................... 11-14
Engine coolant ................................................. 11-14
Air cleaner element .......................................... 11-17
Replacing the air cleaner element ..................... 11-17
Spark plugs...................................................... 11-19
Recommended spark plugs .............................. 11-20
Drive belts........................................................ 11-20
Manual transmission oil .................................. 11-21
Checking the oil level....................................... 11-21
Recommended grade and viscosity .................. 11-21
Automatic transmission fluid.......................... 11-22
Checking the fluid level.................................... 11-22
Recommended fluid ......................................... 11-23
Front differential gear oil (AT models) ........... 11-23
Checking the oil level...................................... 11-23
Recommended grade and viscosity .................. 11-24
Rear differential gear oil.................................. 11-24
Recommended grade and viscosity .................. 11-24
Power steering fluid........................................ 11-24
Checking the fluid level .................................... 11-24
Recommended fluid ......................................... 11-25
Brake fluid........................................................ 11-25
Checking the fluid level .................................... 11-25
Recommended brake fluid ............................... 11-26
Clutch fluid (MT models)................................. 11-26
Checking the fluid level.................................... 11-26
Recommended clutch fluid ............................... 11-27
Brake booster.................................................. 11-27
Brake pedal ...................................................... 11-28
Checking the brake pedal free play .................. 11-28
Checking the brake pedal reserve distance....... 11-28
Clutch pedal (MT models) ............................... 11-29
Checking the clutch function ............................ 11-29
Checking the clutch pedal free play .................. 11-29
Hill start assist system (MT models –if
equipped) ...................................................... 11-29
Replacement of brake pad and lining ............ 11-30
Breaking-in of new brake pads and linings ....... 11-30
Parking brake stroke....................................... 11-31
Maintenance and service
11

Black plate (22,1)
北米Model "A1110BE-C" EDITED: 2010/ 11/ 17
Maintenance and serviceTires and wheels .............................................. 11-31
Types of tires................................................... 11-31
Tire pressure monitoring system (TPMS) (if equipped) ................................................... 11-31
Tire inspection ................................................. 11-33
Tire pressures and wear ................................... 11-33
Wheel balance .................................................. 11-35
Wear indicators ................................................ 11-35
Tire rotation direction mark .............................. 11-36
Tire rotation ..................................................... 11-36
Tire replacement .............................................. 11-37
Wheel replacement ........................................... 11-37
Aluminum wheels............................................. 11-38
Windshield washer fluid .................................. 11-38
Replacement of wiper blades .......................... 11-39
Windshield wiper blade assembly ..................... 11-40
Windshield wiper blade rubber (type A and type B) ........................................................... 11-41
Rear window wiper blade assembly .................. 11-42
Rear window wiper blade rubber ....................... 11-42
Battery.............................................................. 11-44
Fuses ................................................................ 11-45
Main fuse .......................................................... 11-46
Installation of accessories .............................. 11-46
Replacing bulbs ............................................... 11-47
Headlights (models with HID headlights) ........... 11-47
Headlights (models without HID headlights) ...... 11-47
Front turn signal light ...................................... 11-50
Front fog light (if equipped) .............................. 11-50
Rear combination lights ................................... 11-51
Back-up light (5-door) ...................................... 11-52
License plate light ........................................... 11-53
Map light ......................................................... 11-53
Dome light and cargo area light ....................... 11-54
Trunk light ....................................................... 11-55
High mount stop light (4-door) (except LED [Light Emitting Diode] type) ............................ 11-55
Other bulbs ..................................................... 11-55

Black plate (363,1)
北米Model "A1110BE-C" EDITED: 2010/ 12/ 17
Maintenance scheduleThe scheduled maintenance items re-
quired to be serviced at regular intervals
are shown in the “Warranty and Main-
tenance Booklet ”.
For details of your maintenance schedule,
read the separate “Warranty and Main-
tenance Booklet ”.
Maintenance precautionsWhen maintenance and service are re-
quired, it is recommended that all work be
done by an authorized SUBARU dealer.
If you perform maintenance and service
by yourself, you should familiarize yourself
with the information provided in this
section on general maintenance and
service for your SUBARU.
Incorrect or incomplete service could
cause improper or unsafe vehicle opera-
tion. Any problems caused by improper
maintenance and service performed by
you are not eligible for warranty coverage.
WARNING
.Testing of an All-Wheel Drive
model must NEVER be per-
formed on a single two-wheel
dynamometer or similar appara-
tus. Attempting to do so will
result in transmission damage
and in uncontrolled vehicle
movement and may cause an
accident or injuries to persons
nearby.
. Always select a safe area when
performing maintenance on your
vehicle. .
Always be very careful to avoid
injury when working on the vehi-
cle. Remember that some of the
materials in the vehicle may be
hazardous if improperly used or
handled, for example, battery
acid.
. Your vehicle should only be ser-
viced by persons fully competent
to do so. Serious personal injury
may result to persons not experi-
enced in servicing vehicles.
. Always use the proper tools and
make certain that they are well
maintained.
. Never get under the vehicle sup-
ported only by a jack. Always use
safety stands to support the
vehicle.
. Never keep the engine running in
a poorly ventilated area, such as
a garage or other closed areas.
. Do not smoke or allow open
flames around the fuel or battery.
This will cause a fire.
. Because the fuel system is under
pressure, replacement of the fuel
filter should be performed only
by your SUBARU dealer.
. Wear adequate eye protection to
Maintenance and service
11-3
–CONTINUED –
11