Yes, at: http://www.selidori.com/tech/prius/DOC/ There are separate versions for 2004-2005 and 2006-2009. The 2010 version appears to be the User Manual, not the Technical Manual. JeffD
You might find some free resources online (like wiring diagrams or partial manuals), but full versions are usually paid or require subscription access. If you’re planning to do your own work, your best bet is to get proper toyota Repair manuals(dot)com(PDF). They give you complete repair steps, diagrams, and specs so you’re not stuck relying on the dealership for everything.
