For anyone out there with the keyless entry: Has anyone's doors ever lock all by themselves? I lock my doors frequently in my 05 by pressing the last 2 buttons on the door simultaneously (7-8 & 9-0). All years have this option as far as I am aware. I'll unlock the door open it up and randomly the truck will lock as if someone pushed the lock button on the fob, or the buttons on the door. it's not consistent, and it's a new condition... anyone ever experience this?