| Hair dryer would be your best option here. But if its not feasible, hit the door with your butt a couple of times to get the ice cracked.
I had to do it once in my coupe when my doors froze on me parked at the street for a day. The door would unlock fine but would budge. So, butt came to use.
Just dont use your elbow or something pointy.
Careful not to scratch your paint.
Later use lithium grease on the mechanism.
Last edited by trj; 11-30-2012 at 12:23 PM.