Yup.. GM cars with OnStar will start in Dec 2011 sending critical data to GM whether you want to or not... So if you are going too fast, get in a fender bender, don't use your seatbelt or various other items, GM will provide this info to Insurance companies, law enforcement when asked and send you service notices, without you 'Opting in' to the program...
So now your GM car is a 'Dirty Rat'..
PacketStorm article on GM.. You Dirty Rat..
#InfoSec #OnStar