Problem with LG8700 Bluetooth Connection

Maybe this is too specific a problem for this forum but I'll give it a shot.
I have been using an LGVX8700 on Bluetooth on my 2006 Prius for a week. Everything has been great until today. Now I cannot connect back to the car. I have removed the device and reinstalled, renamed, change the passkey, etc. The phone will pair with the Prius. So the Prius "sees" the LG8700....it is listed as valid phone....however it will not connect...it tells me the "device is out of range or the power is off". I can get my wife's LG phone to connect but not mine. I can't figure out why all of sudden it doesn't connect! Thanks.