2007 Chevrolet Equinox Owner's Manual - Page 168

Defogging and Defrosting Fog or frost on the inside of windows is a result of high humidity (moisture) condensing on the cool window glass. This can be minimized if the climate control system is used properly. To avoid fogging windows on rainy and humid days at temperatures above freezing, turn on the air conditioning system. Also, it is best to avoid the use of the recirculation mode, except when maximum A/C performance is needed or for short times to avoid exterior odors. 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. When you select either of these modes, or the floor mode which also helps defog the windows slightly, the system runs the air conditioning compressor and cancels recirculation mode to dry the air; however, the recirculation light will stay on. For best results, clear all snow and ice from the windshield before defrosting. Turn the right knob to select the defog or defrost mode. - (Defog): This mode directs half of the air to the windshield and the side window outlets, and half to the floor outlets. 0 (Defrost): This mode directs most of the air to the windshield and the side window outlets, with some air directed to the floor outlets. Rear Window Defogger The rear window defogger uses a warming grid to remove fog from the rear window. The rear window defogger will only work when the ignition is in RUN. < (Rear): Press this button to turn the rear window defogger on or off. An indicator light on the button will come on to let you know that the rear window defogger is activated. The rear window defogger will only work when the ignition is in RUN. The rear window defogger will stay on for about 10 minutes after the button is pressed, unless the ignition is turned to 168