Climate control -> Operating tips for heater and air for Your Subaru Forester SUV 2024

Defrosting 271  
.
For types B and C climate control  
system, after defrosting the wind-  
shield by pressing the defroster  
button “ ”, pressing the button  
again returns the system to the  
setting that had been selected be-  
fore the defroster was activated.  
4-5. Defrosting  
4-6. Operating tips for heater  
and air conditioner  
& Cleaning ventilation grille  
1
If equipped  
Select the “ ” or “ ” mode to defrost or  
dehumidify the windshield and front door  
windows.  
1
Front ventilation inlet 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.  
NOTE  
.
When the “ ” or “ ” mode is  
selected, the air conditioner oper-  
ates automatically regardless of the  
position of the air conditioner button  
to defrost the windshield more  
quickly. However the indicator on  
the air conditioner button may not  
illuminate. At the same time, the air  
inlet selection is automatically set to  
the outside air mode.  
– CONTINUED –  
Air filtration system  
272  
& Efficient cooling after parking & Cooling and dehumidifying in  
4-7. Air filtration system  
in direct sunlight  
high humidity and low tem-  
perature weather conditions  
Your vehicle’s air conditioning system is  
equipped with an air filtration system.  
Replace the cabin air filter according to  
the replacement schedule found in the  
“Warranty and Maintenance Booklet”. This  
schedule should be followed to maintain  
the filter’s dust collection ability. Under  
extremely dusty conditions, the filter  
should be replaced more frequently. Have  
your filter checked or replaced by your  
SUBARU dealer. For replacement, use  
only a genuine SUBARU air filter kit.  
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 effi-  
ciency.  
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.  
& Lubrication oil circulation in  
& 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 steep  
upgrade.  
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.  
CAUTION  
Contact your SUBARU dealer if the  
following occurs, even if it is not yet  
time to change the filter:  
& Checking air conditioning  
system before summer sea-  
son  
.
Reduction of the airflow through  
the vents.  
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.  
.
Windshield gets easily fogged or  
misted.  
& Refrigerant for your climate  
control system  
Your air conditioner uses ozone friendly  
refrigerant R-1234yf (HFO-1234yf). Con-  
sult your SUBARU dealer for service.  
Repairs needed as a result of using the  
wrong refrigerant are not covered under  
warranty.  
NOTE  
The filter can influence the air condi-  
tioning, heating and defroster perfor-  
mance if not properly maintained.