I have a strange problem with my 2014 Sierra SLT 1500. Randomly the doors will self-lock and the mirrors will fold. This will happen even while driving down the road. I will unfold the mirrors and they will refold in a couple seconds. After 3-4 times, it will quit. It is disconcerting because it can self-lock even while idling in the driveway. I have to use Onstar to unlock my truck. But I have to be quick and yank the door open instantly or it will self-lock again in about 1 second. Has anyone else experienced this problem?