My 2018 R-line will not lock & stay locked. When I lock the vehicle with either of the key fobs or using the dimple on the door handles my Atlas will lock as normal & within two seconds I hear a click as the system unlocks itself. If I open any door the alarm sounds until I clear it with the remote. I have open and closed all doors and the rear deck lid (and fuel door.) No improvement. Even tried starting and moving it with no change. Any suggestions would be appreciated??? This happens with both key fobs so I don't think it's a battery issue.