I've heard that battery solution in another thread I'm going to go head and check the year of the battery now! Thanks for the idea man I also thought it was strange, it only happened after I installed the aftermarket amp for the sound system for about a day now magically its fine again button & fob. Another instance of something spastic. Im driving down the road fan off, all of a sudden its blowing hot air out of all vents for about a min or two. The other day it was hot on driver side and sort of cold on passenger side when turning fan on. Checked the AC fluid normal pressure no leaks, from other threads im thinking the heater control valve sticking?