Yesterday I went out and the radio would not change channels. use sirius and stuck on 50's station.

 

I had a similar thing happen on my Acadia. Radio was on, screen was black and had no control of channels or volume. I seem to remember disconnecting the negative battery cable for a few minutes cured it. Hasn’t happened since that one time.

 

Thank you I will try it. Thank you I just tried it and it worked.