This is an interesting thread. Someone is saying their a/c is to cold. Lol jk. You will be fine with the a/c turned on. Just adjust the temp. That's what I do in my camry, mustang, and Acadia. Now my f 150 I just set to desired temp, i.e. 70 degrees, and let her eat. Or I should say used to. Now I open the sunroof, roll down the windows and open the black glass because my a/c system is shot.