Anything above center air vents, like navi screen, all buttons next to it, climate controls, display, etc. are dead.
Lower part works however, like emergency lights, rear sunshade, heated seats.
Car drives fine without any issues, and no problem with gauges.
I suspect it's a fuse, but where should start looking? Any help would be appreciated. Thank you.

 

Sounds like another common issue that goes around for these LS's. My nav unit worked sometimes and other times not so much. Yours could be a fuse so check that but its doubtful. From my research there are circuit board issues on the inside of the headunit. I sent my unit out last week so hope to get it back this week and kiss this problem goodbye.

 

Thanks for your response. I was hoping it would be a simple fix, but so far I can't find anything upon search. it sucks that i can't use climate control when weather changes frequently.

 

This is one place that will repair it

http://www.mrwhizard.com/

I'm going through this other place that repair Prius headunits that is based around me in southern Indiana. Shoudl get mine back this week so fingers crossed