Apparently they lock and unlock at random times by themselves whether sitting or moving. Has no external key lock on the doors, so no way to get in when thay locked with it running and the remote inside, other than thru the rear hatch.
I hoped someone here might have heard of this and have an idea or two I could pass along to him.

I want to die like my Grampa, peacefully, in his sleep. Not screaming in terror like his passengers.