Problems with AT Package Electronics...Freezing?

Hey all,

I have a brand new Prius V Five with the AT Package, just about 6 weeks old now.

I'm having a recurring problem with the electronics in the Nav unit that's driving me batty.

Sometimes it seems it just fails to boot up entirely or boots up and then crashes or something. It'll play whatever my last selected audio source was and default to the map view, but voice commands are completely disabled (pressing button the steering wheel does nothing), and pressing any of the hard buttons around the screen does nothing, so I can't change audio sources, enter an address or make a call, basically the whole thing is like frozen or something.

It's hard to say how often it's happening, because there are many times I drive where I don't go to use any of those features, but twice now in the past week I've had the issue where I'm driving down the freeway and hit the voice control button to make a call only to get no response, and then that's when I try fooling with the other buttons and find out that the whole unit is unresponsive.

This lasts until I completely power down the car and start it back up again. I'm not aware of any way to power down the unit otherwise, but if anyone has any ideas on how to fix this or what to do I'm all ears!