Suddenly I am finding that although my i phone 4 shows bluetooth connection as well as multimedia in my new Prius V, the speaker is not working. It has worked up until now. Any ideas?
Can you add some more detail? What do you mean by "the speaker is not working"? Are you trying to stream Bluetooth audio and it's not outputting from the stereo? Is it plugged in to the USB port at the same time (phone output could perhaps be set to Dock instead of Bluetooth)? More details the better.
I had the same problem but with Entune Pandora. I fixed it by rebooting the iPhone and reconnecting the bluetooth.
Do you have a Prius v wagon? Your profile says you have a 2011 Prius. The Prius v wagon started w/model year 2012.