I have 4s with iOS 6. Prior to updating to iOS 6, I had no problems using it with my vehicle's bluetooth. Now, when I say call "x", it seems to always mess up and tries to call the wrong contact. It has even said "calling Y" when contact "Y" is not even my contact list. Is this a bug in iOS 6 or is there a setting that I can change to get it back working correctly? I even deleted the phone from the vehicle and then re-paired the phone and vehicle, without any improvement. Thanks!!