Is anyone else having any problems with the LMM's locking the keys in them self? I know 4 different GM trucks an 2007 Chevy 2500, 2008 Chevy 2500, 2008 GMC 2500, and a 2008 Caddy Escalade?. All in the FL area that when you get out shut the door randomly the horn will go off, then doors lock. It doesn't matter if the keys are in it or not and doesn't happen every time, very random. Any ideas why or a possible fix?