Subject says it all. Does the HUD in the '13 model display navigation arrows? I've seen some conflicting info on this..... Thanks
No. There are 3 display modes that are cycled through with each push of the HUD button. Off/On-speed + energy meter/On-speed only.
When I had my 2012 Plug-in Prius, it did display arrows for the navigation in the HUD. There was a button you had to press to turn it on/off to display them, it was marked navi where the buttons are to move the HUD image up and down.
It shows on mine. It was available on the 4 with solar roof and JBL nav and the 5 with the technology package.
I don't think it was removed. Maybe it's a case of some countries have it (U.S.), some don't? You can even see the navi button I showed above in the 2014 e-brochure in one of the pics: http://www.toyota.com/prius/ebrochure/