My 2013 CX-5 fobs (both) randomly stop working. It seems to happen once the car has has been parked. Either the fob will always work, or always not work, but only way for the fobs to change their mind is to move the car.

I replaced batteries on both fobs and I replaced the car battery as well.

Either way, once I open the car with valet key, the car starts without any issues. It's just the lock/unlock that doesn't work on the fob.

Does anyone know what could be causing this?