This is the second day in a row that this has happened but I never realized it on the first day, except I kept hearing a noise while going to work. As I was driving to work today in my MY2012 Volt, I eventually realized the door lock were trying, or rather unlocking during every left turn. At first I just noticed a noise several times over the radio and figured it was just some loose cargo bouncing around while going over the goat paths we have here they call roads. Then as I paid more attention to the noise I noticed my drivers door was unlocked, then shortly down the road all the rest of the doors unlocked. I hit the lock button at the next traffic light, all the doors locked, then at the next LF turn, the driver's door unlocked, shortly followed by the rest of the doors unlocking. Any ideas?