Wow! I can't beleive this is an issue. I just picked up a 2012 300 Str8 and I'm in day 4 with this annoying condensation and its pretty bad...It takes up the bottom 1/3 of the both headlights and looks horrible. It really bothers me especially since I paid close to 55K!!!!!
I'm going to try the highbeam trick see if anything happens but please keep us informed if a recall is issued. I"ll see where I get with my dealer when I go back to get Roadbloc(protective clearcoat) installed on the front.
I know some cars, I beleive its Audi,that actually has a little fan built in to the headlight housing to extract moisture from the headlight, if Chrysler wanted to be like them then they should have paid closer attention and would have this problem with defective product and unsatisfied customers.