Chevrolet 2006 HHR Owner's Manual page 146

9 (Off): To turn the fan off, turn the knob all the way
counterclockwise to the off position.
Temperature Control: Turn the left knob clockwise or
counterclockwise to increase or decrease the
temperature inside your vehicle.
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(Recirculate): Press this button to prevent outside
air and odors from entering your vehicle or to help heat or
cool the air inside your vehicle more quickly. An indicator
light above the symbol will come on in this mode. The air
conditioning compressor also comes on. This mode is not
available for floor, defog and defrost modes. When the
recirculation button is pressed, the recirculation indicator
light will flash five times and outside air will be delivered.
Operation in this mode during periods of high humidity
and cool outside temperatures may result in increased
window fogging. If window fogging is experienced, select
the defrost mode.
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(Outside Air): Press this button to allow outside
air to circulate through your vehicle. An indicator
light above the symbol will come on in this mode.
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(Air Conditioning): Press this button to turn the
air conditioning system on or off. When this button
is pressed, an indicator light below the symbol will come
on to let you know the air conditioning is activated.
3-20
On hot days, open the windows to let hot inside air
escape; then close them. This helps to reduce the time
it takes for your vehicle to cool down. It also helps
the system to operate more efficiently.
For quick cool down on hot days:
1. Select the vent mode.
2. Select the recirculation mode.
3. Select air conditioning.
4. Select the coolest temperature.
5. Select the highest fan speed.
Using these settings together for long periods of time
may cause the air inside of your vehicle to become
too dry. To prevent this from happening, after the air in
your vehicle has cooled, turn off the recirculation by
pressing the outside air button.
The air conditioning system removes moisture from the
air, so you may sometimes notice a small amount of
water dripping underneath your vehicle while idling
or after turning off the engine. This is normal.
The air conditioning compressor cannot be turned on
when the fan is off.