JB 911

Havnt driven my car for a month, when I took it out radio reception was bad to horrible with this message intermitently appearing :No HD Signal

All channels.
Was fine before.
Washed car once since parking it (but didnt drive it except from garage to driveway)
I keep it on a maintainer so battery strong.
Bluetooth audio works crystal clear.
Regular radio (HD off) is still poor.
Again it worked fine before. Driving around same area?
Anybody seen this issue? tia

2010panny4S

I get that a lot in certain areas in the bay area when I'm in the mountains or cell dead zones. It comes back to clearer sounds and HD radio when the signal is at a clear location.