Something happened to today that I've never seen before. I'm wondering if anyone else has noticed it. At a stop light I hit the brakes kind of hard and the driver-side door unlocked. Then it started a regular clicking like it was trying to lock again. but couldn't. I can see how unlocking the door would be useful in an accident to allow someone trying to render aid to open the door from the outside. Is this an actual feature or just a malfunction of the locks? I think the rest of the doors stayed locked. I have a 2013 Volt.