I rent quite a few cars at a local agency and a couple years ago, one of the guys behind the counter was telling me about a recent auto theft..... The fellow behind the wheel of the stolen car pulled on to a freeway with a cop in an unmarked car somewhere not too far behind him. A few exits down, the car thief pulled onto the off ramp but got caught in some bumper to bumper traffic. Once the guy was at a dead stop, the cop radioed to somewhere and onstar shut the engine down. The cop basically walked up to the car before the guy had even opened the door and arrested him.
Onstar can do a lot. I sat and watched a friend set up the computer in his car with the help of an onstar operator. The operator said that depending on how the car was equipped they could do pretty much everything but steer the car. My friend’s car wasn’t equipped for it but the operator said she could even tell how many people were in the car and could extrapolate from seat belts how many were in a car that wasn’t equipped with seat sensors.
Its cool technology but it comes with the threat.