I have a 2007 Kia optima. lately I've been noticing when my car has been turned off and parked for a couple of hours, the hazard lights come on. They come on for a couple of seconds then turn of for a couple of seconds then come back on. as soon as I open the car door they come off and wont come back on randomly. This doesn't happen while I'm driving nor while Im in the vehicle. Has anyone had this similar problem? I'm thinking it might be the relay but I don't know where it is located. Thanks!