Two days ago, slacker just stopped working on my MS. I went into settings and reconnected the account - it made no difference. Tune-in radio is working fine. Anyone else had any problems?
Slacker service as a whole (not just Model S) had some major issues over the weekend. They fixed it all last night. I am thousands of mile from my Model S, but I was having difficult with slacker too. They said their engineers worked all weekend to figure out what was wrong. Basically, on regular slacker service (on my iPad and HTC One), a lot of music/albums were just flat gone out of the inventory. I think even after that, the apps were messing up a bit, but I think it's gotten better as things naturalize with their service.