Supposedly OnStar will now be able to predict the severity of your injuries in the event of a crash based on speed, force and direction of impact. OnStar then tells your local 911 guy.
http://www.freep.com/story/money/cars/general-motors/2015/06/11/general-motors-onstar-safety/71018522/"This service enables first responders to better treat injuries today, and in the long run, it will allow us to prevent certain injuries from occurring," said Jeff Boyer, GM vice president of global vehicle safety. "With access to this information, our engineers can analyze today's safety systems to identify those features most effective in preventing severe injuries in the future."
Now that the algorithm has been validated, OnStar will work to educate the emergency response community so it can adjust training and protocols.