2011 SUBARU IMPREZA climate control

4-12Climate control
properly and become damaged, the sys-
tem may not be able to control the interior
temperature correctly. To avoid damaging
the sensors, observe the following pre-cautions. –Do not subject the sensors to impact.
– Keep water away from the sensors.
– Do not cover the sensors.
The sensors are located as follows.– Solar sensor: beside the windshield
defroster grille.– Interior air temperature sensor: near
the ignition switch.– Outside temperature sensor: behind
the front grille. Operating tips for heater and
air conditioner &
Cleaning ventilation grille
Always keep the front ventilation inlet grille
free of snow, leaves, or other obstructions
to ensure efficient heating and defrosting.
Since the condenser is located in front of
the radiator, this area should be kept clean
because cooling performance is impaired
by any accumulation of insects and leaves
on the condenser. &Efficient cooling after parking
in direct sunlight
After parking in direct sunlight, drive with
the windows open for a few minutes to
allow outside air to circulate into the heated interior. This results in quicker
cooling by the air conditioner. Keep the
windows closed during the operation of
the air conditioner for maximum cooling
efficiency. &
Lubrication oil circulation in
the refrigerant circuit
Operate the air conditioner compressor at
a low engine speed (at idle or low driving
speeds) a few minutes each month during
the off-season to circulate its oil. & Checking air conditioning
system before summer sea-son
Check the air conditioner unit for refriger-
ant leaks, hose conditions, and proper
operation each spring. Have the air con-
ditioning system checked by your
SUBARU dealer. & Cooling and dehumidifying in
high humidity and low tem-
perature weather conditions
Under certain weather conditions (high
relative humidity, low temperatures, etc.) a
small amount of water vapor emission
from the air outlets may be noticed. This
condition is normal and does not indicate
any problem with the air conditioning

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
– CONTINUED –

4-14Climate control
(3) Pull out the glove box.
2. Remove the air filter.
3. Replace the air filter element with a
new one.
CAUTION
The arrow mark on the filter must
point UP.
4. Reinstall the glove box, and connect
the damper shaft.
5. Close the glove box.
6. LABEL installation (1) Attach the service label to the driver ’s side door pillar.

1) Caution label(2) Attach the caution label next to the
air filter as shown in the illustration. Climate control
4-15

6-8Interior equipment
Accessory power outlets
Power outlet below the climate control dials
Power outlet in the center console (except STI)
Power outlet in the center console (STI)
Accessory power outlets are provided
below the climate control dials and in the
center console. Electrical power (12V DC)
from the battery is available at any of the
outlets when the ignition switch is in eitherthe “Acc ”or “ON ”position.
You can use an in-vehicle electrical
appliance by connecting it to an outlet.
The maximum power rating of an appli-
ance that can be connected is 120W.Do
not use an appliance which exceeds the
indicated wattage for each outlet.
When using appliances connected to two
outlets simultaneously, the total power
consumed by them must not exceed
120W.
CAUTION
. Do not attempt to use a cigarette
lighter in the accessory power outlets.
. Do not place any foreign objects,
especially metal ones such as
coins or aluminum foil, into the
accessory power outlet. That
could cause a short circuit. Al-
ways put the cap on the acces-
sory power outlet when it is not
in use.
. Use only electrical appliances
which are designed for 12V DC.
The maximum power rating of an
appliance that can be connected
is 120W. Do not use an appliance
which exceeds the indicated wat-
tage for each outlet.
When using appliances con-
nected to two outlets simulta-
neously, the total power con-
sumed by them must not exceed
120W. Overloading the accessory
power outlet can cause a short
circuit. Do not use double adap-
ters or more than one electricalappliance.
. If the plug on your electric appli-
ance is either too loose or too

tight for the accessory power
outlet, this can result in a poor
contact or cause the plug to get
stuck. Only use plugs that fit
properly.
. Use of an electric appliance in the
accessory power outlet for a long
period of time while the engine is
not running can cause batterydischarge.
. Before driving your vehicle, make
sure that the plug and the cord
on your electrical appliance will
not interfere with your shifting
gears and operating the accel-
erator and brake pedals. If they
do, do not use the electrical
appliance while driving. &
Use with a cigarette lighter (if equipped)
To use the accessory power outlet below
the climate control as a cigarette lighter
socket, purchase the cigarette lighter plug,
which is an optional accessory. A cigarette
lighter plug is available from your
SUBARU dealer.
The cigarette lighter operates only when
the ignition switch is in the “ON ”or “Acc ”
position.
To use the cigarette lighter, push in the
knob and wait a few moments. It will
automatically spring up when ready foruse.
WARNING
To avoid being burned, never grasp
the lighter by the end with the
heating element. Doing so could
result in injury and could also
damage the heating element.
CAUTION
. Do not hold the lighter pushed in,
because it will overheat.
. The electrical power socket lo-
cated in the center console is
originally designed to use a gen- uine SUBARU cigarette lighter
plug. Do not use a non-genuine
cigarette lighter plug in the sock-
et. Doing so may cause a short-
circuit and overheating, resulting
in a fire.
. If the socket is ever used for a
plug-in accessory such as a cell
phone, that may damage the
portion of the socket ’s internal
mechanism that causes a cigar-
ette lighter plug to “pop out ”
after its lighter element is heated.
Therefore, do not place a cigar-
ette lighter plug in a socket that
has been used, even once, to
power a plug-in accessory. Doing
so may cause the plug to stick
and overheat, creating a potential
fire hazard. Interior equipment
6-9

8-10Driving tips
roads. This may cause loss of
vehicle control.
CAUTION
Avoid prolonged continuous driving
in snowstorms. Snow will enter the
engine ’s intake system and may
hinder the airflow, which could re-
sult in engine shutdown or evenbreakdown.
! Wiper operation when snowing
Before driving in cold weather, make sure
the wiper blades are not frozen to the
windshield or rear window.
If the front wiper blades are frozen to the
windshield, use the defroster with the
airflow control dial in the “
”position
and the temperature control dial set for
maximum warmth until the wiper blades
are completely thawed out. For details,
refer to the following section. . For the manual climate control system,
refer to “Defrosting or defogging the
windshield ”F 4-5.
. For the automatic climate control sys-
tem, refer to “Control panel ”F 4-8.
If your vehicle is equipped with a wind-
shield wiper deicer, it is helpful to thaw the windshield wiper blades. Refer to
“Defog-
ger and deicer ”F 3-48.
If the rear wiper blade is frozen to the rear
window, use the rear window defogger.
Refer to “Defogger and deicer ”F 3-48.
When driving in snow, if frozen snow starts
to stick on the surface of the windshield
despite wiper operation, use the defroster
with the airflow control dial in “
”and the
temperature control dial set for maximum
warmth. After the windshield gets warmed
enough to melt the frozen snow on it,
wash it away using the windshield washer.
Refer to “Washer ”F 3-39.
Snow stuck on the wiper arm prevents the
wiper from working effectively. If snow is
stuck on the wiper arm, pull off the road to
a safe place, then remove it. If you stop
the vehicle at road side, use the hazard
warning flasher to alert other drivers.
We recommend use of non-freezing type
wiper blades (winter blades) during the
seasons you could have snow and freez-
ing temperatures. Blades of this type give
superior wiping performance in snowy
conditions. Be sure to use blades that
are suitable for your vehicle.
CAUTION
During high-speed driving, non- freezing type wiper blades may not
perform as well as standard wiper
blades. If this happens, reduce the
vehicle speed.
NOTE
When the season requiring non-freez-
ing type wiper blades is over, replace
them with standard wiper blades. & Corrosion protection
Refer to “Corrosion protection ”F 10-4.
& Snow tires
WARNING
. When replacing original tires with
winter (snow) tires, make sure
you use only the same size,
construction and load range as
the original tires listed on the tire
placard. Using other sizes and
construction may affect speed-
ometer/odometer calibration and
clearance between the body and
tires. It also may be dangerous
and lead to loss of vehicle con-trol.
. You must install four winter tires

Exterior care....................................................... 10-2
Washing ............................................................. 10-2
Waxing and polishing ......................................... 10-3
Cleaning aluminum wheels ................................. 10-3
Corrosion protection .......................................... 10-4
Most common causes of corrosion ..................... 10-4
To help prevent corrosion ................................... 10-4 Cleaning the interior
.......................................... 10-5
Seat fabric ......................................................... 10-5
Leather seat materials ........................................ 10-5
Synthetic leather upholstery ............................... 10-5
Climate control panel, audio panel, instrument panel, console panel, and switches .................. 10-5
Navigation monitor (if equipped) ........................ 10-6
Appearance care
10