2012 SUBARU IMPREZA WRX STI ECO mode

Black plate (356,1)
北米Model "A1130BE-A" EDITED: 2011/ 6/ 7
11-26
Maintenance and service
Check the tire pressures when the tires
are cold. Use a pressure gauge to adjust
the tire pressures to the values shown on
the tire placard. The tire placard is located
on the door pillar on the driver ’s side.
Driving even a short distance warms up
the tires and increases the tire pressures.
Also, the tire pressures are affected by the
outside temperature. It is best to check tire
pressure outdoors before driving the
vehicle.
When a tire becomes warm, the air inside
it expands, causing the tire pressure to
increase. Be careful not to mistakenly
release air from a warm tire to reduce its
pressure.
NOTE. The air pressure in a tire increases
by approximately 4.3 psi (30 kPa, 0.3
kgf/cm
2) when the tire becomes warm.
. The tires are considered cold when
the vehicle has been parked for at least
three hours or has been driven less
than one mile (1.6 km).
WARNING
Do not let air out of warm tires to
adjust pressure. Doing so will result
in low tire pressure.
Incorrect tire pressures detract from con-
trollability and ride comfort, and they
cause the tires to wear abnormally. .
Correct tire pressure (tread worn
evenly)
Roadholding is good, and steering is
responsive. Rolling resistance is low, so
fuel consumption is also lower.

Black plate (357,1)
北米Model "A1130BE-A" EDITED: 2011/ 6/ 7
. Abnormally low tire pressure (tread
worn at shoulders)Rolling resistance is high, so fuel con-
sumption is also higher. .
Abnormally high tire pressure (tread
worn in center)
Ride comfort is poor. Also, the tire
magnifies the effects of road-surface
bumps and dips, possibly resulting in
vehicle damage.
If the tire placard shows tire pressures for
the vehicle when fully loaded, adjust the
tire pressures to the values that match
current loading conditions.
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 an
accident.
&
Wheel balanceEach wheel was correctly balanced when
your vehicle was new, but the wheels will
become unbalanced as the tires become
worn during use. Wheel imbalance causes
the steering wheel to vibrate slightly at
certain vehicle speeds and detracts from
the vehicle ’s straight-line stability. It can
also cause steering and suspension sys-
tem problems and abnormal tire wear. If
you suspect that the wheels are not
correctly balanced, have them checked
and adjusted by your SUBARU dealer.
Also have them adjusted after tire repairs
and after tire rotation.
CAUTION
Loss of correct wheel alignment
causes the tires to wear on one side
and reduces the vehicle ’s running
stability. Contact your SUBARU
dealer if you notice abnormal tire
wear.
Maintenance and service
11-27
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11

Black plate (358,1)
北米Model "A1130BE-A" EDITED: 2011/ 6/ 7
11-28
Maintenance and service
NOTEThe suspension system is designed to
hold each wheel at a certain alignment
(relative to the other wheels and to the
road) for optimum straight-line stability
and cornering performance.& Wear indicators1) New tread
2) Worn tread
3) Tread wear indicatorEach tire incorporates a tread wear
indicator, which becomes visible when
the depth of the tread grooves decreases
to 0.063 in (1.6 mm). A tire must be
replaced when the tread wear indicator
appears as a solid band across the tread.
WARNING
When a tire ’s tread wear indicator
becomes visible, the tire is worn
beyond the acceptable limit and
must be replaced immediately. With
a tire in this condition, driving at
high speeds in wet weather can
cause the vehicle to hydroplane.
The resulting loss of vehicle control
can lead to an accident.NOTEFor safety, inspect tire tread regularly
and replace the tires before their tread
wear indicators become visible.
& Tire rotation direction markExample of tire rotation direction mark
1) FrontIf the tire has the rotation direction
specification, the tire rotation direction
mark is placed on its sidewall.
When you install a tire that has the tire
rotation direction mark, install the tire with
the direction mark facing forward.

Black plate (359,1)
北米Model "A1130BE-A" EDITED: 2011/ 6/ 7
& Tire rotationVehicles equipped with 4 non-unidirec-
tional tires
1) FrontVehicles equipped with unidirectional tires
1) Front
Tire wear varies from wheel to wheel. To
maximize the life of each tire and ensure
that the tires wear uniformly, it is best to
rotate the tires every 7,500 miles (12,000
km). Move the tires to the positions shown
in the illustration each time they are
rotated.
Replace any damaged or unevenly worn
tires at the time of rotation. After tire
rotation, adjust the tires pressures and
make sure the wheel nuts are correctly
tightened.
After driving approximately 600 miles
(1,000 km), check the wheel nuts again
and retighten any nut that has become
loose.&Tire replacementThe wheels and tires are important and
integral parts of your vehicle ’s design;
they cannot be changed arbitrarily. The
tires fitted as standard equipment are
optimally matched to the characteristics
of the vehicle and were selected to give
the best possible combination of running
performance, ride comfort, and service
life. It is essential for every tire to have a
size and construction matching those
shown on the tire placard and to have a
speed symbol and load index matching
those shown on the tire placard. Using tires of a non-specified size detracts
from controllability, ride comfort, braking
performance, speedometer accuracy and
odometer accuracy. It also creates incor-
rect body-to-tire clearances and inappro-
priately changes the vehicle’
s ground
clearance.
All four tires must be the same in terms of
manufacturer, brand (tread pattern), con-
struction, and size. You are advised to
replace the tires with new ones that are
identical to those fitted as standard equip-
ment.
For safe vehicle operation, SUBARU
recommends replacing all four tires at
the same time.
WARNING
. When replacing a tire, you must
use a tire that is of the same size,
circumference, construction,
brand (tread pattern), speed sym-
bol and load index as the original
tires listed on the tire placard.
Using tires of other sizes, cir-
cumferences or constructions
may result in severe mechanical
damage to the drive train of your
vehicle and may affect ride,
handling, braking, speedometer/
odometer calibration, and clear-
Maintenance and service
11-29
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11

Black plate (369,1)
北米Model "A1130BE-A" EDITED: 2011/ 6/ 7
Installation of accessoriesAlways consult your SUBARU dealer
before installing fog lights or any other
electrical equipment in your vehicle. Such
accessories may cause the electronic
system to malfunction if they are incor-
rectly installed or if they are not suited for
the vehicle.
Replacing bulbs
WARNING
Bulbs may become very hot while
illuminated. Before replacing bulbs,
turn off the lights and wait until the
bulbs cool down. Otherwise, there is
a risk of sustaining a burn injury.
CAUTION
Replace any bulb only with a new
bulb of the specified wattage. Using
a bulb of different wattage could
result in a fire. For the specified
wattage of each bulb, refer to “Bulb
chart” F12-14.& Headlights (models with HID
headlights)
WARNING
High-intensity-discharge (HID) bulbs
are used for the low beams of the
headlights. These HID bulbs use an
extremely high voltage. To avoid the
risk of an electric shock that could
result in serious injury, observe the following precautions.
.
Do not replace any headlight
bulbs (both low beam and high
beam) by yourself.
. Do not remove/restore the head-
light assemblies by yourself.
. Do not remove any headlight-
assembly components by your-
self.
For replacement, contact your
SUBARU dealer.
& Headlights (models without
HID headlights)
CAUTION
Halogen headlight bulbs become
very hot while in use. If you touch
the bulb surface with bare hands or
greasy gloves, fingerprints or
grease on the bulb surface will
develop into hot spots, causing the
bulb to break. If there are finger
prints or grease on the bulb surface,
wipe them away with a soft cloth
moistened with alcohol.
Maintenance and service
11-39
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11

Black plate (371,1)
北米Model "A1130BE-A" EDITED: 2011/ 6/ 7
5. Remove the bulb from the headlight
assembly by turning it counterclockwise.
6. Replace the bulb with a new one. At
this time, do not touch the bulb surface.
7. To install the bulb to the headlight
assembly, turn it clockwise until it clicks.
8. Reconnect the electrical connector.
9. Install the bulb cover.
10. Install the air intake duct with clips
(right-hand side).
11. Set the washer tank to the original
place and secure it by clip (left-hand side). !
High beam light bulbs
Right-hand side1. Use a screwdriver to undo the clips on
the air intake duct, then remove the air
intake duct (right-hand side).Left-hand side
2. Use a screwdriver to remove the
secured clip of the washer tank. To make
it easy to access the bulb, move the
washer tank to the horizontal direction
(left-hand side).3. Disconnect the electrical connector
from the bulb.
Maintenance and service
11-41
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11

Black plate (372,1)
北米Model "A1130BE-A" EDITED: 2011/ 6/ 7
11-42
Maintenance and service
4. Remove the bulb from the headlight
assembly by turning it counterclockwise.
5. Replace the bulb with new one. At this
time, use care not to touch the bulb
surface.
6. To install the bulb to the headlight
assembly, turn it clockwise until it clicks.
7. Reconnect the electrical connector.
8. Install the air intake duct with clips
(right-hand side).
9. Set the washer tank to the original
place and secure it by clip (left-hand side).
& Front turn signal lightIt may be difficult to replace the bulbs.
Have the bulbs replaced by your SUBARU
dealer if necessary.&Front fog light (if equipped)
NOTEIt may be difficult to replace the bulbs.
Have the bulbs replaced by your
SUBARU dealer if necessary.Type A
Type B1. Remove the clips.2. Turn over the mud guard.
3. Disconnect the electrical connector.

Black plate (390,1)
北米Model "A1130BE-A" EDITED: 2011/ 6/ 7
12-12
Specifications
& Fuse panel located in the engine compartmentA) Main fuse Fuse
panel Fuse
rating Circuit
1 30A .ABS unit
. Vehicle Dynamics Con-
trol unit
2 25A .Main fan (cooling fan)
3 10A .Secondary air combina-
tion valve (turbo models)
4 25A .Sub fan (cooling fan)
5 Empty
6 10A .Audio
7 30A .Headlight (low beam)
8 15A .Headlight (high beam)
9 20A .Back-up
10 15A .Horn
11 25A .Rear window defogger
. Mirror heater
12 15A .Fuel pump
13 10A .Automatic transmission
control unit
14 7.5A .Engine control unit
15 15A .Turn and hazard warn-
ing flasher
16 15A .Tail and illumination re-
lay
17 7.5A .Alternator