My 2009 has the bluetooth option and its worked fine since I got the car ~2 years ago. Never had a problem pairing with either of our phones. All of a sudden one day it just stopped working. It's like the bluetooth just isn't on. No attempt to pair, no detection or anything. It's like the bluetooth chip just went out to lunch. Is there a fuse or something that I can check? I looked through the fuse boxes and I can't find anything that might be related to bluetooth....
I know it maybe a silly question but did you check if Bluetooth was on and set to auto connect? Info-telephone-settings-auto connect. Have you tried to pair another phone? Galaxy Nexus ?
I have found that if the car connects to a phone that is still in the house, then it will ignore the one in your pocket, even though the first phone is no longer near.