Saturn 2010 AURA Hybrid - Manual (Page 166)

When the heater is in use, there might be slight noise or
vibration during Auto Stops. This is due to the coolant
circulation pump that continues to circulate heat through
the system during the engine Auto Stop.
The heater works best if the windows are kept closed.
h (Recirculation): Press to turn on the recirculation
mode. An indicator light above the button comes on
to show it is on. The recirculation mode recirculates and
helps to quickly cool the air inside the vehicle. It can
be used to prevent outside air and odors from entering
the vehicle and for maximum air conditioning
performance in hot weather. Only use this mode when it
is needed for comfort.
Press this button to cancel the auto recirculation
feature. Each time the vehicle is started, the system
reverts to the auto recirculation function.
If recirculation is selected while in defrost, defog or floor
mode, the light on the button flashes three times and
then goes out to indicate that this is not allowed. This is
to prevent window fogging.
When the weather is cool or damp, operating the
system in recirculation for extended periods of time can
cause fogging of the vehicle’s windows. To clear the
fog, select either defog or defrost. Make sure the
air conditioning is on. Allow the air conditioning to run
automatically to help dehumidify the air.
Rear Window Defogger
The rear window defogger uses a warming grid to
remove fog from the rear window.
< (Rear): Press to turn the rear window defogger on
or off. An indicator light above the button comes on
to show that the rear window defogger is on.
If driving below 50 mph (80 km/h), the rear window
defogger turns off about 15 minutes after the button is
pressed. If additional warming time is needed, press the
button again.
If the vehicle’s speed is maintained above 50 mph
(80 km/h), the rear window defogger remains on once
the button is pressed.
If the vehicle has heated outside mirrors, the surface of
the outside mirrors also heat when the rear window
defogger is activated. See Outside Power Mirrors
on page 3-35.
Notice: Do not use a razor blade or sharp object to
clear the inside rear window. Do not adhere
anything to the defogger grid lines in the rear glass.
These actions may damage the rear defogger.
Repairs would not be covered by your warranty.
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