My '21 RAV4 XLE always showed a speed limit sign on the MID until a couple of days ago. I drive around the western Chicago suburbs, haven't changed my location. Nothing has happened to the car, so I don't know why the RSA has disappeared. As I was searching the Web and forum for an explanation, I learned that RSA also shows stop and Do Not Enter signs, plus, it will alert me when I'm driving faster than the posted speed limit. It does not show other signs nor alert me (and I'm usually driving over the speed limit, I confess). What do you think could have happened?