2012 SUBARU IMPREZA WRX STI check engine

Black plate (136,1)
北米Model "A1130BE-A" EDITED: 2011/ 6/ 7
3-18
Instruments and controls
steadily after blinking for approxi-
mately one minute. This indicates
the TPMS is unable to monitor all
four road wheels. Contact your
SUBARU dealer as soon as possible
for tire and sensor replacement and/
or system resetting.
If the light illuminates steadily after
blinking for approximately one min-
ute, promptly contact a SUBARU
dealer to have the system inspected.
CAUTION
The tire pressure monitoring system
is NOT a substitute for manually
checking tire pressure. The tire
pressure should be checked peri-
odically (at least monthly) using a
tire gauge. After any change to tire
pressure(s), the tire pressure mon-
itoring system will not re-check tire
inflation pressures until the vehicle
is first driven more than 20 mph (32
km/h). After adjusting the tire pres-
sures, increase the vehicle speed to
at least 20 mph (32 km/h) to start the
TPMS re-checking of the tire infla-
tion pressures. If the tire pressures
are now above the severe low
pressure threshold, the low tire
pressure warning light should turn off a few minutes later. Therefore, be
sure to install the specified size for
the front and rear tires.
&
ABS warning light
CAUTION
.
If any of the following conditions
occur, we recommend that you
have the ABS system repaired at
the first available opportunity by
your SUBARU dealer.
– The warning light does not
illuminate when the ignition
switch is turned to the “ON ”
position.
– The warning light illuminates
when the ignition switch is
turned to the “ON ”position,
but it does not turn off even
when the vehicle speed ex-
ceeds approximately 8 mph
(12 km/h).
– The warning light illuminates
during driving.
. When the warning light is on (and
the brake system warning light is
off), the ABS function shuts
down. However, the conventional
brake system continues to oper- ate normally.
With a vehicle equipped with an EBD
system, the ABS warning light illuminates
together with the brake system warning
light if the EBD system malfunctions. For
further details of the EBD system mal-
function warning, refer to “Electronic
Brake Force Distribution (EBD) system
warning ”F 3-19.
NOTEIf the warning light behavior is as
described in the following conditions,
the ABS system may be considered
normal.
. The warning light illuminates right
after the engine is started but turns off
immediately, remaining off.
. The warning light remains illumi-
nated after the engine has been started,
but it turns off when the vehicle speed
reaches approximately 8 mph (12
km/h).
. The warning light illuminates during
driving, but it turns off immediately and
remains off.
When driving with an insufficient battery
voltage such as when the engine is jump
started, the ABS warning light may illumi-
nate. This is due to the low battery voltage
and does not indicate a malfunction.

Black plate (137,1)
北米Model "A1130BE-A" EDITED: 2011/ 6/ 7
When the battery becomes fully charged,
the light will turn off.&
Brake system
warning light
WARNING
. Driving with the brake system
warning light on is dangerous.
This indicates your brake system
may not be working properly. If
the light remains illuminated,
have the brakes inspected by a
SUBARU dealer immediately.
. If at all in doubt about whether
the brakes are operating prop-
erly, do not drive the vehicle.
Have your vehicle towed to the
nearest SUBARU dealer for re-
pair.
This light has the following functions.
! Parking brake warning
The light illuminates with the parking
brake applied while the ignition switch is
in the “ON”position. It turns off when the
parking brake is fully released.
! Brake fluid level warning
This light illuminates when the brake fluid
level has dropped to near the “MIN”level of the brake fluid reservoir with the ignition
switch in the
“ON”position and with the
parking brake fully released.
If the brake system warning light should
illuminate while driving (with the parking
brake fully released and with the ignition
switch positioned in “ON ”), it could be an
indication of leaking of brake fluid or worn
brake pads. If this occurs, immediately
stop the vehicle at the nearest safe place
and check the brake fluid level. If the fluid
level is below the “MIN ”mark in the
reservoir, do not drive the vehicle. Have
the vehicle towed to the nearest SUBARU
dealer for repair.
! Electronic Brake Force Distribution
(EBD) system warning
The brake system warning light also
illuminates if a malfunction occurs in the
EBD system. In that event, it illuminates
together with the ABS warning light.
The EBD system may be malfunctioning if
the brake system warning light and ABS
warning light illuminate simultaneously
during driving.
Even if the EBD system fails, the conven-
tional braking system will still function.
However, the rear wheels will be more
prone to locking when the brakes are
applied harder than usual and the vehi-
cle ’s motion may therefore become some- what harder to control.
If the brake system warning light and ABS
warning light illuminate simultaneously,
take the following steps.
1. Stop the vehicle in the nearest safe,
flat place.
2. Shut down the engine, apply the
parking brake and then restart it.
3. Release the parking brake. If both
warning lights turn off, the EBD system
may be malfunctioning. Drive carefully to
the nearest SUBARU dealer and have the
system inspected.
4. If both warning lights illuminate again
and remain illuminated after the engine
has been restarted, shut down the engine
again, apply the parking brake, and check
the brake fluid level.
5. If the brake fluid level is not below the
“MIN
”mark, the EBD system may be
malfunctioning. Drive carefully to the
nearest SUBARU dealer and have the
system inspected.
6. If the brake fluid level is below the
“MIN ”mark, DO NOT drive the vehicle.
Instead, have the vehicle towed to the
nearest SUBARU dealer for repair.
Instruments and controls
3-19
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3

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 (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 (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 (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