I have this too. I bought my 2014 Silverado from my dad who didn’t use it for much except an occasional trip on hobbies and to move his pontoon. Only had 38000 miles on it when i bought it in June. My Girlfriend gave me XM for Father’s Day of this year and it worked great till last week. I did the whole thing with XM over the phone and nothing worked. Still reads no reception, signal may be blocked. Dad never had XM on it because he doesn’t believe in paying for that. So the XM has hardly been used although I’m sure the XM module was on everytime he drove the truck. So, i guess ill have to troubleshoot once it warms up and i can work outside without freezing my butt off. Till then, its regular radio or my Echo Auto from Amazon which works very well.
