Maybe this is old news .I have a 2008 Pontiac G8 with Onstar no subcription my insurance is with Farmers it went up $50 a month i called and asked why and the insurance company had my miles down to the tee and that was the reason. I have not smogged it due to year and or registered recently. This all happened after i put 3500 miles on the car in 4 days to a trip from CA to Texas and back. I only figured maybe it was Onstar did some googling and it is information that insurance companies can use and Onstar does still track data even though no subcription. I googled more on to disable it and just pulled the fuse learned something new.