Lost my Slacker Radio!

Go the the settings for Internet Radio and see if the username and password are still there. It will be something like #############@teslamotors.com

If it's not there or it can't log on, just call Tesla and they'll email you the username and password to get it back up and running. I had that happen, but it was because I was messing with it.

i've had this problem, it's an easy fix, and i found the solution on tmc by searching for slacker:
basically:
go to apps/slacker and log out
reboot console by holding both thumbwheels down
got to apps/slacker and click 'restore tesla credentials'
reboot (this step may not really be necessary)

should be good to go. make sure you have good 3g or wifi while doing this.

I found that simply a screen reboot (by holding both thumbwheels down) took care of it. This is perhaps another v5.12 issue that will go away with the next update.

I had this happen after being at service as well it turns out that they had logged me out and forgot to log me back in. Go into the settings. Apps. And the click log in (unless it says you already are) if you are try logging out and then logging back in again.