Acuraniac

I searched but couldn't find an answer to my question. Perhaps someone knows of a related thread or has run across the same problem. I have a 2009 tsx without navi. I replaced the battery and lost my bluetooth connection to my iphone 4s. I tried to pair again, but the prompts are not there ... or the prompt voice comes just occasionally, and then not for the full pairing process. This is kind of frustrating because I've become adjusted to the convenience of using the phone through the car's sound system. Any ideas?