Since it is under warranty I'm going to make the most obvious suggestion that you take it to a dealer and have them go through it. Knowing what the computer code says is important, however sometimes code descriptions are misleading. Sometimes a dealer gets a code, but it can mean about 5 different things. Sometimes not.

I'm glad you are under warranty.

It has been said:
Hybrid drivers come in 3 flavors, greenie, techie and cheapie. Pick any 2.
2005 Prius, Melinium Silver over gray, package 5 (AI)