GMC 2007 Automobile User Manual


 
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 windows is a result of high
humidity or moisture condensing on the cool
window glass. This can be minimized if the climate
control system is used properly. There are two
modes to clear fog or frost from your windshield.
Use the defog mode to clear the windows of fog or
moisture and warm the passengers. Use the defrost
mode to remove fog or frost from the windshield
more quickly.
For best results, clear all snow and ice from the
windshield before defrosting.
Select one of these available modes from the
right knob.
0(Defog): This mode directs most of the air
to the windshield and the floor outlets. A small
amount of air is also directed to the outboard outlets
for the side windows and to the instrument panel
side outlets. When you select this mode, the system
runs the air-conditioning compressor. To defog the
windows faster, turn the temperature control knob
clockwise to the warmest setting.
1(Defrost): This mode directs the air to the
windshield and the outboard outlets for the side
windows. A small amount of air is also directed to
the instrument panel side outlets. When you select
this mode, the system runs the air-conditioning
compressor. To defrost the windows faster, turn
the temperature control knob clockwise to the
warmest setting.
Do not drive the vehicle until all windows are clear.
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