This is the good one.
Did you use regular grease or high temperature brake grease?Greesed the slides,pump some new dot 3 fluid though all was good for 2 days than it started sticking again.
Actually it can get quite hot. It might not be the cause this time, but I know, because I once used regular grease on the caliper slides on my Insight. They WILL stop moving when the grease is baked into sludge. I pulled the calipers, cleaned up that old grease, and replaced it with the specialized brake system grease in August or September.The grease only gos on the slides and shouldnt recieve much heat sliding back forth.