My 2012 TSX is a great little car. I've had no problems for the eight years I've owned it until recently. About once a week, the fob will not unlock the door. When I use the key to unlock, the car is disabled. I have to turn the key (which makes the alarm sound sometimes) and wait for everything to reset. The factory installed radio requires the code to unlock it and I have to reset the clock (radio presets remain, thankfully). Has anyone else experienced this or know of a probable cause?