Defogging And Defrosting - Buick 2006 Lucerne Owner's Manual

6
(Floor): This mode directs most of the air to the
floor outlets with some air directed toward the side
window outlets and a little air directed to the windshield.
In this mode, the system will automatically use
outside air.
If recirculation is selected, it will stay on for three minutes
to reduce windshield fogging. The led will come on.
You can also select modes by using the following
buttons:
h
(Recirculate): Press this button to recirculate
cabin air through the vehicle. It can be used 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 below the button will come on
in this mode. 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.
#
(Air Conditioning): Press this button to turn the air
conditioning system on or off. When this button is
pressed, an indicator light below the button will come on
to let you know the air conditioning is activated. Air
conditioning can be selected in any mode as long as the
fan knob is not in the off position. When in defrost
and defog the air-conditioning compressor will come on
automatically.
3-24
On hot days during the vehicle's initial start-up, open
the windows to let hot inside air escape; then close
them. This helps to reduce the time it takes for
the vehicle to cool down. It also helps the system to
operate more efficiently.
For quicker cool down on hot days, do the following:
1. Select the vent air mode.
2. Select the recirculation mode.
3. Select the air conditioner.
4. Select the coolest temperature.
5. Select the highest fan speed.
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.

Defogging and Defrosting

Fog on the inside of the vehicle is a result of high humidity
causing moisture to condense on the cool window glass.
This can be minimized if the climate control system is
used properly. There are two modes to clear frost or fog
from the windshield. Use the defog mode to clear the
windows of condensation and to warm the vehicle's
occupants. Use the defrost mode to remove frost or
condensation from the windshield quickly. Recirculation
cannot be selected when in these modes (the indicator
light will come on when pressed).