my monaco knight talking to me

I own an 06 monaco knight that I bought new 11 years ago. For the first time today it started talking to me. About every 3 minutes a muted female computer generated voice dimly says " keypad is locked. press keypad to unlock. My first thought was my meds were acting up so I had the DW come out who confirmed the voice. It appears the voice is coming from under the dash driver's side. A call to Monaco tech support did no good as the tech had never heard of such a thing nor had any of his colleagues that he talked to. his only thought was it had to do with the keyless entry system which my coach does not have nor do any 2006 knights. Any help appreciated.