2012 SUBARU IMPREZA WRX light

3-46Instruments and controls
window defogger. Some models are also
equipped with an outside mirror defogger
and/or windshield wiper deicer. The de-
fogger and deicer system is activated only
when the ignition switch is in the “ON ”
position.
Manual climate control system
Automatic climate control system
To activate the defogger and deicer
system, push the control switch that is
located on the climate control panel. The
rear window defogger, outside mirror
defogger and windshield wiper deicer are
activated simultaneously. The indicator
light on the control switch illuminates while
the defogger and deicer system is acti-vated.
To turn them off, push the control switch
again. They also turn off when the ignition
switch is turned to the “Acc ”or “LOCK ”
position.
The defogger and deicer system will
automatically shut off after approximately
15 minutes. If the rear window and the
outside mirrors have been cleared and the windshield wiper blades have been deiced
completely before that time, push the
control switch to turn them off. If defrost-
ing, defogging or deicing is not complete,
you have to push the control switch to turn
them on again.
For models with the automatic climate
control system,
it is possible to set the
defogger and deicer system for the con-
tinuous operation mode as follows. . Models with genuine SUBARU navi-
gation system:
The setting can be changed for the
continuous operation mode using the
navigation monitor. For details, refer to
the Owner ’s Manual supplement for the
navigation system.
The setting can also be changed by a
SUBARU dealer. Contact your SUBARU
dealer for details. . Models without genuine SUBARU
navigation system:
The setting can be changed by a
SUBARU dealer. Contact your SUBARU
dealer for details.
If the battery voltage drops below the
permissible level, continuous operation of
the defogger and deicer system is can-
celed and the system stops operating.

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 ......................................... 4-13Climate control
4

4-4Climate control
! Fan speed control dial
The fan operates only when the ignition
switch is turned to the “ON ”position. The
fan speed control dial is used to select
four fan speeds. ! Airflow control dial
Each dial position activates the following
air outlets.
(Ventilation): Instrument panel outlets
(Bi-level): Instrument panel outlets and
foot outlets
(Heat): Foot outlets, both side outlets of
the instrument panel and some through
windshield defroster outlets (A small
amount of air flows to the windshield and
both side windows to prevent fogging.)
(Heat-def): Windshield defroster out-
lets, foot outlets and both side outlets of
the instrument panel
: Windshield defroster outlets and both
side outlets of the instrument panel
For details, refer to “Airflow selection ”F 4-
2. NOTE
When the dial is placed in the “
”or
“” position, the air conditioner com-
pressor operates automatically regard- less of the position of the air condi-
tioner button to defog the windshield
more quickly. However the indicator on
the air conditioner button will not
illuminate. At the same time, the air
inlet selection is automatically set to“
outside air ”mode.
In this state, you cannot select “recir-
culation ”mode by manually pressing
the air inlet selection button.
Also, you cannot stop the air condi-
tioner compressor by pressing the air
conditioner button. ! Air conditioner button
The air conditioner operates only when
the engine is running.
Push the air conditioner button while the
fan is in operation to turn on the air conditioner. The indicator light will illumi-nate.
Push it again to turn off the air conditioner. !
Air inlet selection button
ON position (recirculation): Interior air is
recirculated inside the vehicle. Push the
air inlet selection button to the ON posi-
tion. The indicator light will illuminate.
Place the air inlet selection button to the
ON position for fast cooling with the air
conditioner or when driving on a dustyroad.
OFF position (outside air): Outside air is
drawn into the passenger compartment.
Push the air inlet selection button again to
the OFF position. The indicator light will
turn off.

Place the air inlet selection button to the
OFF position when the interior has cooled
to a comfortable temperature and the road
is no longer dusty.
WARNING
Continued operation with the air
inletselectionbuttonintheON
position may fog up the windows.
Switch to the OFF position as soon
as the outside dusty conditionclears.
& Heater operation
NOTE . When the “
”or “”position is
selected, the air conditioner compres-
sor automatically operates regardless
of the position of the air conditioner
button to defog the windshield more
quickly. At the same time, the air inlet
selection is automatically switched to
the OFF position (outside air). How-
ever, the air conditioner indicator light
does not illuminate at this time.. When defrosting, defogging or heat-
ing, warm air is also emitted from the
right and left air outlets. To stop warm
airflow from these outlets, turn the
corresponding thumb wheel down. !
Defrosting or defogging the wind-shield
To direct warm air to the windshield and
front door windows:
1. Set the airflow control dial to the “
”
position.
2. Turn the temperature control dial all
the way to the right.
3. Set the fan speed control dial to the
highest speed. !
Heating and defrosting
To direct warm air toward the floor and the windshield:
1. Set the airflow control dial to the “
”
position.
2. Set the temperature control dial to the
most comfortable level.
3. Set the fan speed control dial to the
desired speed. Climate control
4-5
– CONTINUED –

4-6Climate control
!Heating
To direct warm air toward the floor:
1. Set the air inlet selection button to the
OFF position.
2. Set the airflow control dial to the “
”
position.
3. Set the temperature control dial to the
most comfortable level.
4. Set the fan speed control dial to the
desired speed. !
Bi-level heating
This setting allows you to direct air of
different temperatures from the instrument
panel and foot outlets. The air from the
foot outlets is slightly warmer than from
the instrument panel outlets.
1. Set the air inlet selection button to the
OFF position.
2. Set the airflow control dial to the “
”
position.
3. Set the temperature control dial to the
desired temperature level.
4. Set the fan speed control dial to the
desired speed.
Setting the temperature control dial fully
turned to the red area or blue area
decreases the temperature difference
between the air from the instrument panel outlets and the air from the foot outlets. !
Ventilation
To force outside air through the instrument
panel outlets:
1. Set the air inlet selection button to the
OFF position.
2. Set the airflow control dial to the “
”
position.
3. Set the temperature control dial all the
way left.
4. Set the fan speed control dial to the
desired speed.
When driving on a dusty road, set the air
inlet selection button to the “ON ”position.
WARNING
Continued operation with the air

&Fan speed control dial
The fan operates only with the ignition
switch in the ON position. The fan speed
control dial is used to select the AUTO
(automatic control) mode or to select the
desired fan speed. The dial ’s positions
and their functions are as follows. OFF: The fan does not operate.
AUTO: The fan speed is adjusted auto-
maticallyinaccordancewiththeair
temperature inside and outside the pas-
senger compartment, the intensity of sun-
light, and other factors. SUBARU recom-
mends using the AUTO position.
Other positions: The fan speed can be
adjusted in 7 steps. NOTE
With the fan speed control dial in the
AUTO position and the airflow control
dial in the
“
”, “”,or “”position,
the fan does not operate during engine
warm-up until the engine coolant tem-
perature exceeds approximately 122 8F
(50 8C).
& Temperature control dial
This dial is used to set the desired interior
temperature. With the dial set to your
desired temperature, the system automa-
tically adjusts the temperature of air
supplied from the outlets such that the
desired temperature is achieved andmaintained.
If the dial is turned fully counterclockwise, the system gives maximum cooling per-
formance. If the dial is turned fully clock-
wise, the system gives maximum heatingperformance. &
Airflow control dial
Each dial position activates the following
air outlets. AUTO: The airflow control is adjusted
automatically in accordance with the air
temperature inside and outside the pas-
senger compartment, the intensity of sun-
light, and other factors. SUBARU recom-
mends using the AUTO position.
(Ventilation): Instrument panel outlets
(Bi-level): Instrument panel outlets and
foot outlets
(Heat): Foot outlets, both side outlets of Climate control
4-9
– CONTINUED –

4-10Climate control
the instrument panel and some through
windshield defroster outlets (A small
amount of air flows to the windshield and
both side windows to prevent fogging.)
(Heat-def): Windshield defroster out-
lets, foot outlets and both side outlets of
the instrument panel
: Windshield defroster outlets and both
side outlets of the instrument panel
For details, refer to “Airflow selection ”F 4-
2. NOTE
When the dial is placed in the “
”or
“” position, the air inlet selection is
automatically set to “outside air ”
mode. &
Air inlet selection buttonON position (recirculation): Interior air is
recirculated inside the vehicle. Push the
air inlet selection button to the ON position
for fast cooling with the air conditioner or
when driving on a dusty road. The
indicator light will illuminate.
OFF position (outside air): Outside air is
drawn into the passenger compartment.
Push the air inlet selection button to the
OFF position when the interior has cooled
to a comfortable temperature and the road
is no longer dusty. The indicator light will
turn off. AUTO: Turn the fan speed control dial and
airflow control dial to the AUTO position.
The air inlet control is then adjusted
automatically in accordance with the air
temperature inside and outside the pas- senger compartment, the intensity of sun-
light, and other factors. Pressing the air
inlet selection button cancels the
“AUTO ”
mode. To return to “AUTO ”mode, turn the
fan speed control dial or airflow control
dial to a position other than the AUTO
position. Then turn to “AUTO ”mode.
SUBARU recommends using the AUTOposition.
WARNING
Continued operation in the ON posi-
tion may fog up the windows. Switch
to the OFF position as soon as the
outside dusty condition clears.

&Air conditioner button
The button positions and their functions
are as follows. ON: The air conditioner operates while the
fan is running.
Push the button to select this position. The
indicator light will illuminate. OFF: The air conditioner does not oper-
ate.
Push the button again to select this
position. The indicator light will turn off. AUTO: Turn the fan speed control dial and
airflow control dial to the AUTO position.
The air conditioner compressor operation
is then adjusted automatically in accor-
dance with the air temperature inside and
outside the passenger compartment, the
intensity of sunlight, and other factors. Pushing the button cancels the
“AUTO ”
mode. To return to “AUTO ”mode, turn the
fan speed control dial or airflow control
dial to a position other than the AUTO
position. Then turn to “AUTO ”mode.
SUBARU recommends using the AUTOposition.
NOTE
The air conditioner ’s compressor does
not operate with an outside tempera-
ture of 32 8F(0 8C) or lower. &
Temperature sensors
1) Interior air temperature sensor
2) Solar sensor
The automatic climate control system
employs several sensors. These sensors
are delicate. If they are not treated Climate control
4-11
– CONTINUED –