Of course, no one mentions the other side -- that they can also see if you need a higher premium. "You told us this car was just for weekend recreation, Mr. Smith..." Signing up for the OnStar service is voluntary, so it's not going to start watching you until you say so... yet. But if you really do think you're paying too much, then why not. They probably already know everything about you, anyway... Thanks for the tip, Myles!
[Source: Top Speed]