One of the thing they advertised about OnStar is it detects when your car is in crash. Then they (OnStar) can remotely talk to you and dispatch help. There is a button you can push to talk to someone and get help manually.
I think it does stolen vehicle tracking too.
In this day when everyone has a cell phone (versus the late 90s when Onstar first showed up), its less useful than before but if your car goes over a cliff, you are knocked out and none sees it, it could be helpful.
Why this needs to be connected to the driving functions of your car is another issue..(they'd claim "diagnostics").
I think it does stolen vehicle tracking too.
In this day when everyone has a cell phone (versus the late 90s when Onstar first showed up), its less useful than before but if your car goes over a cliff, you are knocked out and none sees it, it could be helpful.
Why this needs to be connected to the driving functions of your car is another issue..(they'd claim "diagnostics").
https://www.onstar.com/us/en/services/emergency.html