service SUBARU IMPREZA WRX 2012 4.G Owners Manual

Warranties &Warranties for U.S.A.
All SUBARU vehicles distributed by
Subaru of America, Inc. and sold at retail
by an authorized SUBARU dealer in the
United States come with the followingwarranties: . SUBARU Limited Warranty
. Emission Control Systems Warranty
. Emissions Performance Warranty
All warranty information, including details
of coverage and exclusions, is in the“ Warranty and Maintenance Booklet ”.
Please read these warranties carefully.
& Warranties for Canada
All SUBARU vehicles distributed by
Subaru Canada, Inc. and sold at retail by
an authorized SUBARU dealer in Canada
come with the following warranties: . SUBARU Limited Warranty
. Anti-Corrosion Warranty
. Emission Control Warranty
All warranty information, including details
of coverage and exclusions, is in the“ Warranty and Service Booklet ”. Please
read these warranties carefully. &
Models with HID headlights
CAUTION
High Intensity Discharge (HID) head-
lights contain mercury. For that
reason, it is necessary to remove
HID headlights before vehicle dis-
posal. Once removed, please reuse,
recycle or dispose of the HID head-
lights as hazardous waste.
& Models without HID head- lights
NOTE
This vehicle does not contain mercury
devices or parts. How to use this Owner
’s
Manual & Using your Owner ’s Manual
Before you operate your vehicle, carefully
read this manual. To protect yourself and
extend the service life of your vehicle,
follow the instructions in this manual.
Failure to observe these instructions may
result in serious injury and damage to yourvehicle.
This manual is composed of fourteen
chapters. Each chapter begins with a brief
table of contents, so you can usually tell at
a glance if that chapter contains the
information you want.
Chapter 1: Seat, seatbelt and SRS airbags
This chapter informs you how to use the
seat and seatbelt and contains precau-
tions for the SRS airbags.
Chapter 2: Keys and doors
This chapter informs you how to operate
the keys, locks and windows.
Chapter 3: Instruments and controls
This chapter informs you about the opera-
tion of instrument panel indicators and
how to use the instruments and otherswitches. 1
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2
Chapter 4: Climate control
This chapter informs you how to operate
the climate control.
Chapter 5: Audio
This chapter informs you how to operate
your audio system.
Chapter 6: Interior equipment
This chapter informs you how to operate
interior equipment.
Chapter 7: Starting and operating
This chapter informs you how to start and
operate your SUBARU.
Chapter 8: Driving tips
This chapter informs you how to drive your
SUBARU in various conditions and ex-
plains some safety tips on driving.
Chapter 9: In case of emergency
This chapter informs you what to do if you
have a problem while driving, such as a
flat tire or engine overheating.
Chapter 10: Appearance care
This chapter informs you how to keep your
SUBARU looking good.
Chapter 11: Maintenance and service
This chapter informs you when you need
to take your SUBARU to the dealer for
scheduled maintenance and informs you
how to keep your SUBARU running
properly.Chapter 12: Specifications
This chapter informs you about dimen-
sions and capacities of your SUBARU.
Chapter 13: Consumer information and
Reporting safety defects
This chapter informs you about Uniform
tire quality grading standards and Report-
ing safety defects.
Chapter 14: Index
This is an alphabetical listing of all that
’sin
this manual. You can use it to quickly find
something you want to read.
& Safety warnings
You will find a number of WARNINGs,
CAUTIONs and NOTEs in this manual.
These safety warnings alert you to poten-
tial hazards that could result in injury to
you or others.
Please read these safety warnings as well
as all other portions of this manual care-
fully in order to gain a better understand-
ing of how to use your SUBARU vehicle
safely.
WARNING
A WARNING indicates a situation in
which serious injury or death could
result if the warning is ignored.
CAUTION
A CAUTION indicates a situation in
which injury or damage to your
vehicle, or both, could result if the
caution is ignored.
NOTE
A NOTE gives information or sugges-
tions how to make better use of yourvehicle. & Safety symbol
You will find a circle with a slash through it
in this manual. This symbol means “Do
not ”, “Do not do this ”,or “Do not let this
happen ”, depending upon the context.

&Tire pressures
Check and, if necessary, adjust the
pressure of each tire (including the spare)
at least once a month and before any long
journey.
Check the tire pressure when the tires are
cold. Use a pressure gauge to adjust the
tire pressures to the values shown on the
tire placard. For detailed information, referto “Tires and wheels ”F 11-23.
WARNING
Driving at high speeds with exces-
sively low tire pressures can cause
the tires to deform severely and to
rapidly become hot. A sharp in-
crease in temperature could cause
tread separation, and destruction of
the tires. The resulting loss of
vehicle control could lead to anaccident. &
California proposition 65 warning
WARNING
Engine exhaust, some of its consti-
tuents, and certain vehicle compo-
nents contain or emit chemicals
known to the State of California to
cause cancer and birth defects or
other reproductive harm. In addi-
tion, certain fluids in vehicles and
certain components of product wear
contain or emit chemicals known to
the State of California to cause
cancer and birth defects or other
reproductive harm.
& California Perchlorate Advi- sory
Certain vehicle components such as air-
bag modules, seatbelt pretensioners and
keyless entry transmitter batteries may
contain perchlorate material. Special
handling may apply for service or vehicle
end of life disposal. See www.dtsc.ca.gov/hazardouswaste/perchlorate. General information &
Noise from under the vehicle
NOTE
You may hear a noise from under the
vehicle approximately 5 hours after the
engine is turned off. However, this does
not indicate a malfunction. This noise
is caused by operation of the fuel
evaporation leakage checking system
and is normal. The noise will stop after
approximately 15 minutes. 9

Table of contents
Seat, seatbelt and SRS airbags1
Keys and doors2
Instruments and controls
Climate control4
Audio5
Interior equipment6
Starting and operating7
Driving tips8
In case of emergency9
Appearance care10
Maintenance and service11
Specifications12
Consumer information and Reporting safety defects13
Index14
3

system inoperative, which may
result in serious injury. Do not
use electrical test equipment on
any circuit related to the seatbelt
pretensioner and SRS airbag
systems. For required servicing
of the seatbelt pretensioner, con-
sult your nearest SUBARU deal-
er.
CAUTION
The front sub sensors are located
on both the right and left sides at the
front of the vehicle, and the SRS
airbag control module including the
impact sensors is located under the
center console. If you need service
or repair in those areas or near the
front seatbelt retractors, have the
work performed by your authorized
SUBARU dealer.
NOTE
If the front part of the vehicle is
damaged in an accident to the extent
that the seatbelt pretensioner does not
operate, contact your SUBARU dealer
as soon as possible. &
Precautions against vehicle modification
Always consult your SUBARU dealer if
you want to install any accessory parts to
your vehicle.
CAUTION
Do not perform any of the following
modifications. Such modifications
can interfere with proper operation
of the seatbelt pretensioners. . Attachment of any equipment
(bush bar, winches, snow plow,
skid plate, etc.) other than genu-
ine SUBARU accessory parts to
the front end.
. Modification of the suspension
system or front end structure.
. Installation of a tire of different
size and construction from the
tires specified on the vehicle
placard attached to the driver ’s
door pillar or specified for indivi-
dual vehicle models in this Own-er ’s Manual. Child restraint systems
Infants and small children should always
be placed in an infant or child restraint
system in the rear seat while riding in the
vehicle. You should use an infant or child
restraint system that meets Federal Motor
Vehicle Safety Standards or Canada
Motor Vehicle Safety Standards, is com-
patible with your vehicle and is appro-
priate for the child
’s age and size. All child
restraint systems are designed to be
secured in vehicle seats by lap belts or
the lap belt portion of a lap/shoulder belt
(except those described in “Installation of
child restraint systems by use of lower and
tether anchorages (LATCH) ”F 1-29).
Children could be endangered in an
accident if their child restraints are not Seat, seatbelt and SRS airbags
1-21
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3. Ensure that the backward-forward
position and seatback of front passenger’s
seat are locked into place securely by
moving the seat back and forth.
4. Turn the ignition switch to the “ON ”
position and wait 6 seconds to allow the
system to complete self-checking. Follow-
ing the system check, both indicators turn
off for 2 seconds. Now, the ON indicator
should illuminate while the OFF indicator
remains off.
If the OFF indicator still remains illumi-
nated while the ON indicator remains off,
ask the occupant to move to the rear seat
and immediately contact your SUBARU
dealer for an inspection. ! Effect vehicle modifications made
for persons with disabilities may
have on SUBARU advanced frontal
airbag system operation (U.S. only)
Changing or moving any parts of the front
seats, rear seat, seatbelts, front bumper,
front side frame, radiator panel, instrument
panel, combination meter, steering wheel,
steering column, tire, suspension or floor
panel can affect the operation of the
SUBARU advanced airbag system. If
you have any questions, you may contact
the following SUBARU distributors. of Columbia>
Subaru of America, Inc.
Customer Dealer Services Department
P.O. Box 6000
Cherry Hill, NJ 08034-6000
1-800-SUBARU3 (1-800-782-2783)
Servco Subaru Inc., dba Subaru Hawaii
2850 Pukoloa Street, Suite 202, Honolulu,
HI 96819 808-839-2273 Shen
’s Corporation dba Prestige Automo-
bile
491, East Marine Drive, Route 1 Dededo, Guam 671-633-2698

Trebol Motors
P.O. Box 11204, San Juan, Puerto Rico 00910 787-793-2828
There are currently no SUBARU distribu-
tors in any other U.S. territories. If you are
in such an area, please contact the
SUBARU distributor or dealer from which
you bought your vehicle. &
System operation
CAUTION
Do not touch the SRS airbag system
components with bare hands right
after deployment. Doing so can
cause burns because the compo-
nents can be very hot as a result ofdeployment.
The SRS airbags can function only when
the ignition switch is in the “ON ”position.
When the SRS airbag(s) deploy(s), a
sudden, fairly loud inflation noise will be
heard and some smoke will be released.
These occurrences are a normal result of
the deployment. This smoke does not
indicate a fire in the vehicle. Seat, seatbelt and SRS airbags
1-47
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1-56Seat, seatbelt and SRS airbags
The following components are monitored
by the indicator: .Front sub sensor
– Right-hand side
– Left-hand side
. Airbag control module (including im-
pact sensors). Frontal airbag module
– Driver ’s side
– Front passenger ’s side
. Side airbag sensor
– Center pillar right-hand side
– Center pillar left-hand side
. Side airbag module
– Driver ’s side
– Front passenger ’s side
. Curtain airbag sensor
– Rear wheel house right-hand side
– Rear wheel house left-hand side
. Curtain airbag module
– Right-hand side
– Left-hand side
. Satellite safing sensor (under the rear
center seat). Seatbelt pretensioner
– Driver ’s side
– Front passenger ’s side
. Seatbelt buckle switch (front passen-
ger ’s side)
. Front passenger ’s seatbelt tension sensor.
Front passenger ’s occupant detection
system weight sensor. Front passenger ’s occupant detection
control module. Front passenger ’s frontal airbag ON
and OFF indicator. All related wiring
WARNING
If the warning light exhibits any of
the following conditions, there may
be a malfunction in the seatbelt
pretensioners and/or SRS airbag
system. Immediately take your vehi-
cle to your nearest SUBARU dealer
to have the system checked. Unless
checked and properly repaired, the
seatbelt pretensioners and/or SRS
airbag will not operate properly in
the event of a collision, which may
increase the risk of injury. . Flashing or flickering of the warn-
ing light
. No illumination of the warning
light when the ignition switch is
first turned to the “ON ”position
. Continuous illumination of the
warning light
. Illumination of the warning light while driving
& SRS airbag system servicing
WARNING
. When discarding an airbag mod-
ule or scrapping the entire vehi-
cle damaged by a collision, con-
sult your SUBARU dealer.
. The SRS airbag has no user-
serviceable parts. Do not use
electrical test equipment on any
circuit related to the SRS airbag
system. For required servicing of
the SRS airbag, consult your
nearest SUBARU dealer. Tamper-
ing with or disconnecting thesystem ’s wiring could result in
accidental inflation of the SRS
airbag or could make the system
inoperative, which may result in
serious injury.
CAUTION
If you need service or repair in areas
indicated in the following list, have
the work performed by an author-
ized SUBARU dealer. The SRS air-

3-16Instruments and controls
The CHECK ENGINE warning light may
stop blinking and illuminate steadily after
several driving trips. You should have your
vehicle checked by an authorized
SUBARU dealer immediately. &Charge warning light
If this light illuminates when the engine is
running, it may indicate that the charging
system is not working properly.
If the light illuminates while driving or does
not turn off after the engine starts, stop the
engine at the first safe opportunity and
check the alternator belt. If the belt is
loose, broken or if the belt is in good
condition but the light remains illuminated,
contact your nearest SUBARU dealer
immediately. &Oil pressure warning light
If this light illuminates when the engine is
running, it may indicate that the engine oil
pressure is low and the lubricating system
is not working properly.
If the light illuminates while driving or does
not turn off after the engine starts, stop the
engine at the first safe opportunity and
check the engine oil level. If the oil level is
low, add oil immediately. If the engine oil is
at the proper level but the light remains illuminated, contact your nearest
SUBARU dealer immediately.
For details about checking the engine oil
level or adding the engine oil, refer to“
Engine oil ”F 11-8.
CAUTION
Do not operate the engine with the
oil pressure warning light illumi-
nated. This may cause serious en-
gine damage.
& Rear differential oil
temperature warning
light (STI)
CAUTION
Reduce vehicle speed and park the
vehicle in a safe place as soon as
possible if the R.DIFF TEMP light
illuminates. Continued driving with
this light illuminated can damage
the rear differential and other parts
of the powertrain.
If this light illuminates when the engine is
running, it may indicate that the rear
differential oil temperature is too hot.
At this time, the driver ’s control center
differential will automatically cancel the current torque-distribution ratio setting and
adopt its minimum ratio.
If the light illuminates while driving, reduce
vehicle speed and stop the vehicle at the
nearest safe place. Park the vehicle for
several minutes. After the light turns off,
you can start driving.
If the light does not turn off, contact the
nearest SUBARU dealer for service.
NOTE . If the tire pressures are not correct
and/or the tires are not all the same
size and brand, the rear differential will
be heavily loaded when the vehicle is
driven, resulting in an abnormally high
oil temperature.. The rear differential oil will deterio-
rate if its temperature increases en-
ough for the rear differential oil tem-
perature warning light to illuminate. It is
advisable to have the rear differential
oil replaced as soon as possible. & Low tire pressure
warning light (U.S.-spec. models)
When the ignition switch is turned to the “ON ”position, the low tire pressure warn-
ing light will illuminate for approximately 2
seconds to check that the tire pressure

3-40Instruments and controls
!Compass calibration
1. If a “C ” is displayed in the compass
window, the compass needs to be cali- brated.
2. Drive the vehicle in a circle at 5 mph (8
km/h) or less until the display reads a direction.
3. You can also calibrate the compass by
driving your vehicle on your everyday
routine. The compass will be calibrated
once it has tracked a complete circle.
4. To recalibrate your compass, push and
hold the compass display button for 9
seconds until a “C ” appears in the
compass window.
5. Calibrate the compass according to
step 2 or step 3. ! HomeLink
®Wireless Control Sys-
tem
The HomeLink
®Wireless Control System
can be used to activate remote control
devices such as gate operators, garage
door openers, door locks, home lighting
and security systems.
There are three HomeLink
®buttons on the
mirror, each of which can be programmed
for operation of one desired device. For
details on the device types which can be
operated by this system, consult the HomeLink
®website at: www.homelink.com or call 1-800-355-3515.
Note the following information about this system.
Ifyourvehicleisequippedwiththe HomeLink
®Wireless Control System, it
complies with Part 15 of the Federal
Communications Commission Rules in
the U.S. and the RSS-210 of Industry
Canada in Canada. Its operation is subject
to the following two conditions:
(1) this device may not cause harmful
interference, and (2) this device must
accept any interference received, includ-
ing interference that may cause undesiredoperation.
Changes and modifications to this system
by anyone other than an authorized
service facility could void authorization to
use this equipment. HomeLink
®and the HomeLink®house are
registered trademarks of Johnson Con-
trols, Inc.
WARNING
. When programming the
HomeLink
®Wireless Control Sys-
tem, you may be operating a
garage door opener or other
device. Make sure that people and objects are out of the way of
the garage door or other device
to prevent potential harm ordamage.
. Do not use the HomeLink
®Wire-
less Control System with a gar-
age door opener that lacks the
safety stop and reverse feature
as required by applicable safety
standards. A garage door opener
which cannot detect an object,
signaling the door to stop and
reverse, does not meet these
safety standards. Using a garage
door opener without these fea-
tures increases risk of serious
injury or death. For more infor-
mation, consult the HomeLink
®website at www.homelink.com or
call 1-800-355-3515.
CAUTION
When programming the HomeLink
®Wireless Control System to operate
a garage door opener or an entrance
gate, unplug the device ’s motor
from the outlet during programming
to prevent motor burnout.

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. Air filtration system
Replace the filter element according to the
replacement schedule as follows. This
schedule should be followed to maintain
the filter
’s dust collection ability. Under
extremely dusty conditions, the filter
should be replaced more frequently. It is
recommended that you have your filter
checked or replaced by your SUBARU
dealer. For replacement, use only a
genuine SUBARU air filter kit.
Replacement schedule: Every 12 months or 7,500 miles (12,000
km) whichever comes first
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- mance if not properly maintained. &
Replacing an air filter
1. Remove the glove box. (1) Open the glove box.(2) Remove the damper shaft from the
glove box. Climate control
4-13
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