Unable to turn on ICS

I bought a 2016 Prius Four Touring with the Premium Convenience Package on Friday (Sept 23), and I haven't been able to turn the Intelligent Clearance Sonar on. Since the test drive on Friday, the ICS OFF indicator light has been on (no flashing), and pressing Select when I'm looking at the ICS Setting display doesn't do anything. I'm able to turn on/off other settings (e.g. BSM, LDA), so the buttons and UI seem to be working fine. Also, I'm not seeing any error messages at all (i.e. no "ICS Unavailable" nor "ICS Malfunction").

I've read the ICS section in the manual twice (pages 346 - 358), but nothing is popping out at me.

Is there some precondition I'm missing or something I can try, or do I need to take it back to the dealer to check it out?

Thanks!

 

I guess I'm taking it in to the dealer. I tried using the IPA, but it also wouldn't work.

 

In case anyone else runs into this in the future, in my particular case, it took the dealership a couple of weeks to figure out it was a bad ECU. They replaced it, and the two features appear to be working now.