I seem to recall at least one episode of Knight Rider in which the mobile command center (commonly referred to as the "semi") was seen driving itself in a manner similar to how KITT operates in Auto Cruise mode.
Was the command center truck self-aware like KITT, or was it simply a "dumb" driving program?
I'm not aware if this was ever mentioned or if anyone was ever seen conversing with the truck AI on the show; if there is no canonical answer I will accept any reasonable speculation as well.