Chevrolet Uplander Owner's Manual page 178

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(Fan): Turn the left knob clockwise or
counterclockwise to increase or decrease the fan speed.
Turn the knob to 0 to turn off the fan. The fan must
be turned on for the air conditioning compressor
to operate.
Temperature Control: Turn the center knob clockwise
or counterclockwise to increase or decrease the air
temperature inside your vehicle.
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(Air Conditioning): Press this button to turn the
air-conditioning system on or off. When it is pressed, an
indicator light in the button will come on to let you
know that air conditioning is activated.
You may notice a slight change in engine performance
when the air conditioning compressor shuts off and
turns on again. This is normal. The system is designed
to make adjustments to help with fuel economy while
still maintaining the selected temperature.
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.
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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.
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MAX (Maximum Air Conditioning): Turn the right
knob to this position for maximum air conditioning.
This will select air conditioning and recirculation
for maximum cooling of your vehicle. This mode directs
air to the instrument panel outlets.
Recirculation: This mode keeps outside air from
coming in the vehicle. It can be used to prevent outside
air and odors from entering your vehicle or help heat
or cool the air inside your vehicle more quickly.
This mode will automatically be selected when you
select maximum air conditioning.
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(Heated Seats): Press this button to turn on the
heated seats. The button on the left controls the driver's
seat and the button on the right controls the passenger's
seat. See Heated Seats on page 1-4 for additional
information.