It is very astonishing, that I coudnt find the method to fold the side mirrors on my prius 2010. there are only buttons for adjusting the glass ( like this ) but I cant find any method to move/adjust the main mirror completely.
You just grab it and fold! I'm not sure any Prius models have power folding mirrors--I could be wrong on that one. You just have to do it manually; even though they feel stiff, they will fold. iPhone ?
The Japanese Prius has power folding mirrors and the the G4 Australian one does too. But the North American models didn't get them.