Been having increasing difficulty with getting the door to lock/unlock using the door handle. Don't know if it has to do with the weather (live in NY), but I need to try multiple times, with multiple hands with multiple handles to get the car to lock/unlock. I used to get a better response when using the rear door handle than the driver door, but even that door is pretty unresponsive now. I also exclusively use the sports/activity key fob, not the regular key fob. It's always in my pocket, usually without any other phones/cards or possibly interfering devices. Anyone else have this problem? Found a fix?