2014 300, alarm system problem...
 

I think my 300 need attention!!!
The alarm beeping for Nothing.

I push the button for lock the doors, and 2 or 3 minutes later, the alarm beeping.
I unlock the doors, it stopping. BUT, the doors locking ALONE (i dont touch the button) and 2 or 3 minutes later, it beeping again.
I unlock the doors, it stopping, and.... repeat that again, I unlock the doors....and again and again and.....for stopping that, i unplug the car battery in the trunk.
Someone here has had this problem or heard it ???
Also, I change all the batteries in the 2 controllers.

My signature is; Sorry if my English is bad a little bit, i do my best. ;)
Thanks for your help.