tobnpr

Just purchased an '08 Trailblazer, and the owner's manual states that when the defrost mode is selected for the windshield that the a/c compressor automatically kicks on when the outside air is above 40 degrees.
(Dual climate control system).
This is a huge problem. Here in FL, we have 100% humidity and temps near 80 degrees in the summer before the sun comes up. Having a windshield cooler than the outside air, precipitates fog on the outside of the glass resulting in a windshield you literally can't see through. I crank both temp ***** to 90 degrees but air coming through the vents is still cooler than the outside air. I need HOT air on the windshield to warm it- not cool it. Currently I need to open all the windows and sit for 10-15 minutes so the windshield glass temperature equalizes and the fog on the outside of it no longer forms.

Is there a way to override the a/c compressor kicking on whenever the defrost mode is used? This is a HUGE problem and design issue IMO.
Thanks in advance for any suggestions.