Originally Posted by Grimmrican
But that's only if u turn the a/c on with the heat on, no??
I'm pretty sure that when you turn on full defrost the A/C automatically runs. I only had A/C available for one winter. After I lost it (for various reasons on both cars). I honestly can't say for sure if it comes on or not. I always turned it on manually (habit from having my Camaro). BUT, it took noticeabley longer to defrost my windows. And now it's impossible to defrost my rear side windows.