Just spoke to an alignment guy who told me that the Prius has no caster/camber adjustment for the tires. Makes me feel like buying a toe alignment kit from Amazon and just watch how my tires wear.
There is some "play", so extreme minor adjustments are possible. And there are special bolts you can buy to make camber adjustment. The toe in/out and caster are the most important ones. Mine has always had a slight drift to the right. Which tells me the alignment is set for a perfectly level road. In Florida there is a 2 degree ( I think it's 2) slant to allow the water to drain. The outer edge of the RF tire, and inner edge of the LF tires wear a little more. Rotating them front to back, then swopping left to right to left evens them out.
Edit: I'm an idiot, the below was for the Gen2 Prius; I'm in the wrong forum. .. There are bolts Toyota supplies to adjust camber on the front tires -- see the XW20 service manual, page SP-4, section "7. ADJUST CAMBER". One example bolt P/N is 90105-15017. Edit: ha, hahaha. I totally knew you were talking about the Prius V, because I totally noticed I was in the Prius V / Gen3 Prius forum. Ha. Hahaha.