engine SUBARU IMPREZA WRX STI 2012 Owner's Guide

Black plate (138,1)
北米Model "A1130BE-A" EDITED: 2011/ 6/ 7
3-20
Instruments and controls
&
Low fuel warning light
The low fuel warning light illuminates
when the tank is nearly empty approxi-
mately 2.6 US gal (10.0 liters, or 2.2 Imp
gal). It only operates when the ignition
switch is in the “ON”position. When this
light illuminates, fill the fuel tank immedi-
ately.NOTEThis light does not turn off unless the
tank is replenished up to an internal
fuel quantity of approximately 3.7 US
gal (14 liters, 3.1 Imp gal).
CAUTION
Promptly put fuel in the tank when-
ever the low fuel warning light
illuminates. Engine misfires as a
result of an empty tank could cause
damage to the engine.&
Hill start assist warning
light/Hill start assist OFF
indicator light (STI)
! Hill start assist warning light
While the engine is rotating, if there are
any malfunctions in the Hill start assist system, the light will illuminate.
WARNING
When the Hill start assist warning
light illuminates, have the vehicle
inspected at an authorized SUBARU
dealer.
! Hill start assist OFF indicator light
(STI)
While the Hill start assist system is
deactivated, the Hill start assist OFF
indicator light illuminates continuously to
inform the driver that the Hill start assist
system is not operational.&
Door open warning
light
The door open warning light illuminates if
any door or the rear gate is not fully
closed.
Always make sure this light is not illumi-
nated before you start to drive.
&
Vehicle Dynamics
Control warning light/
Vehicle Dynamics Con-
trol operation indicator
light
! Vehicle Dynamics Control warning
light
CAUTION
The Vehicle Dynamics Control sys-
tem provides its ABS control
through the electrical circuit of the
ABS system. Accordingly, if the ABS
is inoperative, the Vehicle Dynamics
Control system becomes unable to
provide ABS control. As a result, the
Vehicle Dynamics Control system
becomes inoperative, causing the
warning light to illuminate. Although
both the Vehicle Dynamics Control
and ABS systems are inoperative in
this case, the ordinary functions of
the brake system are still available.
You will be safe while driving in this
condition, but drive carefully and
have your vehicle checked at a
SUBARU dealer as soon as possi-
ble.

Black plate (139,1)
北米Model "A1130BE-A" EDITED: 2011/ 6/ 7
NOTE. If the electrical circuit of the Vehicle
Dynamics Control system itself mal-
functions, only this particular warning
light illuminates. Under these circum-
stances, the ABS (Anti-lock Brake
System) remains fully operational.
. The warning light illuminates when
the electronic control system of the
ABS/Vehicle Dynamics Control system
malfunctions.
The Vehicle Dynamics Control system is
probably inoperative under any of the
following conditions. Have your vehicle
checked at a SUBARU dealer immedi-
ately.
. The warning light does not illuminate
when the ignition switch is turned to the
“ON ”position.
. The warning light illuminates while the
vehicle is running.NOTEIf the warning light behavior is as
described in the following examples,
the Vehicle Dynamics Control system
may be considered to be operating
normally.
. The warning light illuminates right
after the engine is started but turns off
immediately and remains off.
. The warning light illuminates after the engine has started and turns off
while the vehicle is subsequently being
driven.
.
The warning light illuminates during
driving, but turns off immediately and
remains off.
! Vehicle Dynamics Control opera-
tion indicator light
The indicator light flashes during activa-
tion of the skid suppression function and
during activation of the traction control
function.
NOTE. The light may remain illuminated for
a short period of time after the engine
has been started, especially in cold
weather. This does not indicate the
existence of a problem. The light
should turn off as soon as the engine
has warmed up.
. The indicator light illuminates when
the engine has developed a problem
and the CHECK ENGINE warning light/
malfunction indicator light is on.
The Vehicle Dynamics Control system is
probably malfunctioning under the follow-
ing condition. Have your vehicle checked
at a SUBARU dealer as soon as possible.
. The light does not turn off even after
the engine has warmed up for several minutes after it was started.
&
Vehicle Dynamics
Control OFF indicator
light/Traction Control
OFF indicator light (STI)
This light has the function of indicating the
following conditions.
.
The Vehicle Dynamics Control system
has been deactivated (all models).
. Only the Traction control system has
been deactivated (STI).
The light illuminates under the following
conditions.
. The Vehicle Dynamics Control system
is not operating (all models).
. Only the Traction Control system is not
operating (STI).
STI:
This light illuminates in yellow for approxi-
mately 1 second when the ignition switch
is turned to the “ON”position. After that,
the light changes to green and remains
illuminated in green for 1 second, and then
turns off. It indicates that the Vehicle
Dynamics Control system is operating
normally.
Instruments and controls
3-21
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3

Black plate (140,1)
北米Model "A1130BE-A" EDITED: 2011/ 6/ 7
3-22
Instruments and controls
The indicator light shows the activated/deactivated conditions as follows.
Activated/deactivated status for each function
Traction Control Vehicle Dynamics
Control system ABS
Indicator light Turn off Activated Activated Activated
(Illuminates in
green)* Deactivated Activated Activated(Illuminates in
yellow) Deactivated Deactivated
Activated
*: STI only
For details about the Traction Control and Vehicle Dynamics Control system, refer to
“Vehicle Dynamics Control system ”F 7-28. !
Vehicle Dynamics Control OFF in-
dicator light (yellow)
. This light illuminates when the Vehicle
Dynamics Control OFF switch is pressed
(except STI).
. This light illuminates when the Vehicle
Dynamics Control mode switch is pressed
for more than 2 seconds (STI).
. The light illuminates when the Vehicle
Dynamics Control system is deactivated.
NOTE. The light may remain illuminated for
a while after the engine has been
started, especially in cold weather. This
does not indicate the existence of a
problem. The light should turn off as
soon as the engine has warmed up.
. The indicator light illuminates when
the engine has developed a problem
and the CHECK ENGINE warning light/
malfunction indicator light is on.
The Vehicle Dynamics Control system is
probably malfunctioning under the follow-
ing conditions. Have your vehicle checked
at a SUBARU dealer as soon as possible.
. The light does not illuminate when the
ignition switch is turned to the “ON ”
position.
. The light does not turn off even after
the lapse of several minutes (the engine

Black plate (141,1)
北米Model "A1130BE-A" EDITED: 2011/ 6/ 7
has warmed up) after the engine has
started.
! Traction Control OFF indicator light
(green –STI)
The light illuminates when the Vehicle
Dynamics Control mode switch is pressed
briefly to select the traction mode. For
details, refer to “Traction mode” F7-30.&
Security indicator light
The security indicator light deters potential
thieves by indicating that the vehicle is
equipped with an immobilizer system. It
begins flashing (approximately once every
3 seconds) approximately 60 seconds
after the ignition switch is turned from the
“ON ”position to the “Acc”or “LOCK ”
position or immediately after the key is pulled out.
If the security indicator light does not flash,
the immobilizer system may not be func-
tioning properly. If this occurs, contact
your SUBARU dealer as soon as possible.
In case an unauthorized key is used (e.g.,
an imitation key), the security indicator
light illuminates.
NOTE.
For the flashing pattern when arm-
ing the alarm system, refer to “Arming
the system ”F 2-16.
. Even if the security indicator light
flashes irregularly or its fuse blows (the
light does not flash if its fuse is blown),
the immobilizer system will function
normally.
& SI-DRIVE indicator light (STI)1) Intelligent (I) mode
2) Sport (S) mode
3) Sport Sharp (S#) modeThis light indicates the current SI-DRIVE
mode.
For details of SI-DRIVE mode, refer to “SI-
DRIVE (STI) ”F 7-22.&
Shift-up indicator light
(STI)
While selecting the Intelligent (I) mode of
SI-DRIVE, this indicator light illuminates
and informs the driver about the upshift
timing for fuel-efficient driving.
Instruments and controls
3-23
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3

Black plate (142,1)
北米Model "A1130BE-A" EDITED: 2011/ 6/ 7
3-24
Instruments and controls
&
Turn signal indicator
lights
These lights show the operation of the turn
signal or lane change signal.
If the indicator lights do not blink or blink
rapidly, the turn signal bulb may be burned
out. Replace the bulb as soon as possible.
Refer to “Replacing bulbs ”F 11-39.&
High beam indicator
light
This light shows that the headlights are in
the high beam mode.
This indicator light also illuminates when
the headlight flasher is operated.&
Cruise control indica-
tor light
This light illuminates when the “CRUISE”
main switch is pressed to activate the
cruise control function.NOTE. If you press the “CRUISE ”main
switch button while turning the ignition
switch “ON ”, the cruise control func-
tion is deactivated and the cruise
control indicator light flashes. To re-
activate the cruise control function,
turn the ignition switch back to the “
Acc ”or “LOCK ”position, and then
turn it again to the “ON ”position.
. If this indicator light and the CHECK
ENGINE warning light/malfunction in-
dicator light flash simultaneously dur-
ing driving, have the vehicle checked
by your nearest SUBARU dealer.
&
Cruise control set in-
dicator light
This light illuminates when vehicle speed
has been set to use the cruise control
function.&
Front fog light indicator
light (if equipped)
This indicator light illuminates while the
front fog lights are illuminated.&
Headlight indicator
light
This indicator light illuminates when the
headlight switch is placed in the “
”or
“
” position.
& Driver ’s control center differ-
ential auto indicator light
(STI)This light functions while the ignition
switch is “ON ”. When illuminated, it
indicates that the driver ’s control center
differential is set to the auto mode. It turns
off when the driver ’s control center differ-
ential is set to the manual mode. For
details, refer to “Driver’s Control Center
Differential (DCCD) (STI) ”F 7-18.
! Driver ’s control center dif-
ferential auto [+] indicator
lightWhen the AUTO [+] mode is set, the
AUTO [+] indicator light illuminates.
For details, refer to “Driver ’s Control
Center Differential (DCCD) (STI) ”F 7-18.

Black plate (143,1)
北米Model "A1130BE-A" EDITED: 2011/ 6/ 7
! Driver ’s control center dif-
ferential auto [ ] indicator
lightWhen the AUTO [ ] mode is set, the
AUTO [ ] indicator light illuminates.
For details, refer to “Driver ’sControl
Center Differential (DCCD) (STI) ”F 7-18.& Driver ’s control center differ-
ential indicator and warning
lights (STI)! Indicator lightsWhen you select the manual mode of the
driver ’s control center differential, the
initial limited slip differential (LSD) torque
that is currently selected for the center
differential is indicated by the illumination
of these indicator lights. !
Warning light
All the indicator lights will flash in the event
that the driver ’s control center differential
has a malfunction. Have the vehicle
inspected by your SUBARU dealer. For
details, refer to “Driver’s Control Center
Differential (DCCD) (STI) ”F 7-18.&
REV indicator light
(STI)
This light illuminates when the engine
speed reaches a level set by driver or
when the tachometer needle enters the
red zone.
ClockThe time changes by 1 minute each time
the “+”button or “”button is pressed.
Pressing the “+”button moves the dis-
played time forward, while pressing the “”
button moves the displayed time back.
Pressing and holding either button
changes the displayed time continuously.
Instruments and controls
3-25
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3

Black plate (145,1)
北米Model "A1130BE-A" EDITED: 2011/ 6/ 7
& Outside temperature indica-
tor1) U.S.-spec. models
2) Except U.S.-spec. modelsThe outside temperature indicator shows
the outside temperature in a range from
22 to 122 8F( 30 to 50 8C).
The indicator can give a false reading
under any of the following conditions:
. When there is too much sun.
. During idling; while running at low
speeds in a traffic jam; when the engine
is restarted immediately following a shut-
down.
. When the actual outside temperature
falls outside the specified indicator range. !
Road surface freeze warning indi-
cation
1) U.S.-spec. models
2) Except U.S.-spec. modelsWhen the outside temperature drops to
378F(3 8C) or lower, the temperature
indication flashes to show that the road
surface may be frozen.
If the outside temperature drops to 37 8F
(3 8C) or lower while the display is giving
an indication other than the outside
temperature, the display switches to the
outside temperature indication and flashes
for 5 seconds before returning to its
original indication.
If the display is already indicating an
outside temperature of 37 8F(3 8C) or lower
when the ignition switch is turned to the “
ON ”position, the indication does not
flash.
NOTEThe outside temper ature indication
may differ from the actual outside
temperature. The road surface freeze
warning indication should be treated
only as a guide. Be sure to check the
condition of the road surface before
driving.& Current fuel consumption (if
equipped)This indication shows the rate of fuel
consumption at the present moment.
Instruments and controls
3-27
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3

Black plate (147,1)
北米Model "A1130BE-A" EDITED: 2011/ 6/ 7
Light control switchThe light control switch operates when the
key is inserted into the ignition switch.
Regardless of the position of the light
control switch, the illuminated lights are
turned off when the key is removed from
the ignition switch.NOTEEven if the key is removed from the
ignition switch, the lights can be illu-
minated by operating the light control
switch from “OFF ”to the “
”or “
”
position. In this case, if the driver ’s
door is opened, a chirp sound will
inform the driver that the lights are
illuminated.
CAUTION
. Use of any lights for a long period
of time while the engine is not
running can cause the battery to
discharge.
. Before leaving the vehicle, make
sure that the light control switch
is turned to the “OFF ”position. If
the vehicle is left unattended for
a long time with the light control
switch set to a position other
than “OFF ”, the battery may be discharged.
&
HeadlightsTo turn on the headlights, turn the knob on
the end of the turn signal lever.
first position
Instrument panel illumination, tail lights,
front side marker lights and license plate
lights are on.second position
Headlights, instrument panel illumination,
tail lights, front side marker lights, and
license plate lights are on.
& High/low beam change (dim-
mer)To change from low beam to high beam,
push the turn signal lever forward. When
the headlights are on high beam, the high
beam indicator light “
”on the combina-
tion meter also illuminates.
To switch back to low beam, pull the lever
back to the detent position.
Instruments and controls
3-29
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3

Black plate (148,1)
北米Model "A1130BE-A" EDITED: 2011/ 6/ 7
3-30
Instruments and controls
& Headlight flasherTo flash the headlights, pull the lever
toward you and then release it. The high
beam will remain on for as long as you
hold the lever. The headlight flasher works
even though the light switch is in the
“OFF ”position.
When the headlights are on high beam,
the high beam indicator light “
”on the
combination meter also illuminates.
CAUTION
Do not hold the lever in the flashing
position for more than just a few
seconds.
& Daytime running light system
WARNING
The brightness of the illumination of
the high beam headlights is reduced
by the daytime running light system.
The light switch must always be
turned to the “
”position when it
is dark outside.
The high beam headlights will automati-
cally illuminate at reduced brightness
when the engine has started, under the
following conditions:
. The parking brake is fully released.
. The light switch is in the “OFF”or “
”
position.
NOTEWhen the light switch is in the “
”
position, the front side marker lights,
tail lights and license plate lights are
illuminated.
Turn signal leverTo activate the right turn signal, push the
turn signal lever up. To activate the left
turn signal, push the turn signal lever
down. When the turn is finished, the lever
will return automatically. If the lever does
not return after cornering, return the lever
to the neutral position by hand.
To signal a lane change, push the turn
signal lever up or down slightly and hold it
during the lane change. The turn signal
indicator lights will flash in the direction of
the turn or lane change. The lever will
return automatically to the neutral position
when you release it.

Black plate (7,1)
北米Model "A1130BE-A" EDITED: 2011/ 6/ 2
Ventilator .............................................................. 4-2
Airflow selection ................................................. 4-2
Center and side ventilators .................................. 4-3
Manual climate control system (if
equipped) .......................................................... 4-3
Control panel ...................................................... 4-3
Heater operation ................................................. 4-5
Air conditioner operation ..................................... 4-7
Automatic climate control system (if
equipped) .......................................................... 4-8
Control panel ...................................................... 4-8
To use as full-automatic climate control system .............................................................. 4-8
To use as semi-automatic climate control system .............................................................. 4-8
Fan speed control dial ......................................... 4-9
Temperature control dial ...................................... 4-9
Airflow control dial .............................................. 4-9
Air inlet selection button .................................... 4-10 Air conditioner button
........................................ 4-11
Temperature sensors ......................................... 4-11
Operating tips for heater and air
conditioner ...................................................... 4-12
Cleaning ventilation grille ................................... 4-12
Efficient cooling after parking in direct sunlight ........................................................... 4-12
Lubrication oil circulation in the refrigerant circuit .............................................................. 4-12
Checking air conditioning system before summer season ............................................................ 4-12
Cooling and dehumidifying in high humidity and low temperature weather conditions ................. 4-12
Air conditioner compressor shut-off when engine is heavily loaded .............................................. 4-13
Refrigerant for your climate control system ... ..... 4-13
Air filtration system........................................... 4-13
Replacing an air filter ......................................... 4-13
Climate control
4