It won't because it always knows what the exterior temp is and over rides the system to prevent compressor damage
that's too much for a car to know
but I tell you what comes out of those vents is no cool air, see in my Land Cruiser the a/c works rain or shine. That's what I want:worship:
You have no idea how much pollution there is on street level in this city, in this beautiful dirty city. Adding to that, the sun, that's another story (the hottest place on Earth is in Ethiopia) and you can't dream about driving with the windows up. Am pretty pretty sure GM did not consider this - a hot hot day with a very chill wind.
So. can i haz my a/c pleezz!
car is at 21K miles if it matters.