(Error) Doors Lock then Unlock without pressing key fob

TW Members;

Need some guidance | ideas

Summary: So I pulled the truck into the garage of my work building today. Put the vehicle in park; turned off the ignition; and removed the key (business as usual).

All of sudden I notice my truck just starts locking and unlocking the doors. Note: The key and fob were not being used.

This would happen every 5-6 seconds. With doors open or doors closed; the car would lock then unlock immediately.

I even tried removing and re-inserting the battery terminal to hopefully reset; but this did not work either.

Anyone else have this problem; if so; what was the solution?

thanks
Joe