brake's [klunk] first every morning and freeze up day after rain.

rear disk no work done 2000 mi. why do brake's freeze stuck solid day after rain.

Disc brakes pretty much can't do this unless there's something very wrong with it. I believe the parking brakes on that car are small drum brakes inside the rotors, more likely there may be something happening in there. It's under warrantee so take it to a dealer. Whatever it is could lead to a catastrophic failure at any time.