I purchased my IS 250C in May and am very happy with the car. I have no problem with power, speed or anything and am happy I got the 250. I have noticed my XM radio is behaving oddly lately, and its behavior is getting worse weekly.. the Song title/artist doesn't update with each new song. Some days it works as expected, other days it just sticks on the first song since I turned on the car. The only way to get it to update the song/artist is to a] change channel, b] change input, c] turn off radio and turn back on (sometimes), d] leave the "text" screen, click the channel name and go back to "text" screen.
But the XM still works, just song title/artist doesn't update. I sure hope this isn't a sign of the radio/computer freaking out.
I haven't been able to identify any pattern, cause or reason as to why the song titles don't update.
-Roger