I had the very same problem and called XM through On-Star and they refreshed the radio as I was travelling through Louisiana. Quick and good response on their part. The mystery is why it happened in the first place.Call XM or faster yet, go to website and send a new refresh signal to radio. Sounds like maybe your original set up may not have been complete, causing it to "redo" each time. It's free and worth a shot.
you are welcome. I am a technical guy via education and curiosity plus I like to share. Today I learned that if my wife's (or any) cell phone was onec paired and cancelled that you have to delete it on her phone and redo the pair with the Corvette. One would think it simple but its not in the owners manual so learning is good.Thanks "cutnout" for that suggestion.
My friend had the same exact thing happen with his Z51 last Friday. He ended up shutting down the car and restarting, it fixed it. Then it happened again. I suggested perhaps because the mic/call end button is actually a rocker button with mute on the other side perhaps it was 'rocked' the wrong way. He tried that next time and it seemed to help. Another possibility is a software glitch where when a call comes through, it is designed to mute the music (but the screen stays unchanged), and perhaps when the call is terminated somehow the software doesn't immediately recognize that and continues to mute the music.I had a weird thing happen today. I picked up a call on my bluetooth, and when it disconnected, the xm radio made no sound. song and stuff showed on screen, but volume knob turning or pressing mute switch had no effect, no volume icon showing volume level would show either. When i pressed the 'radio' button and cycled through AM to FM and then to XM, it began working again.