I noticed the same thing happened to my 7 as well, I was wondering what had happened if maybe the freebie subscription got cancelled by accident.
Truth be told I don't listen to it enough to warrant taking the car to the dealer. I get such poor reception where I live it cuts in and out(from a satellite?????) - on the past 6 cars its been the same even when Sirius and xm were separate.
2013 BMW 750i - Coded, Executive, Lighting, Cold Weather, M Sport, M 303 Wheels, 5% Tint, Conti DWS Tires, 3M Bra, Vinyl Black Gloss Roof Wrap, Exhaust Flap Mod.