Door Lock Problem

[Elan]

I have a 2009 Nismo and recently the door locks have been unlocking themselves after about a minute or two of driving. The autolock feature is working fine when I drive off, it locks itself. A couple minutes later, they pop back open and I have to manually lock it again. Same thing happens again and again even after checking to make sure the doors were closed properly. Not the biggest problem, but I do have to drive through the hood on the way to work. Anyone have this kind of problem or know a solution? I'm thinking about disabling the autolock feature to see if it fixes it.