You're probably right, but what I took from the Q was that he has to "manually lock it" which assumed meant using the key as opposed to "automatically" locking it by pushing the switch.
I wouldn't phrase it that way myself, but that's what I assume he meant :hsdunno:

Now that I think about it, makes more sense that he means it won't lock automatically w/ the remote while the doors are closed. In which case you would be right