Bushwack

A while back I left my sunroof open when I parked my car in the garage. I got a beep as a reminder. When I returned the following morning, the beep came back (I left the sunroof open) and made itself known to me every few minutes while I was driving. Drove to the dealer - he replaced the battery in the FOB and all was good.

So...don't know why the key FOB played a role with my beeping, but it solved the problem.