* In the summer, you can start the car's a/c so it's cooled down when you get in.
* Send the address I just looked up in Google Maps to the car's navigation system, so I don't have to re-type it when I get in, I can just start driving.
* I drive an electric car, and also check battery level from inside so I'm sure I have enough range to get to my destination, and can tell the car to start charging remotely, or schedule charging windows in advance.
I find all of these internet-enabled features useful.
as for Maps, that might be a point, but why not use the phone for nav, normally you don't need to type as voice recognition is good enough
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").
OnStar started as a data connection for diagnostics and emergency services -- it reports back various diagnostic details, and gives your location and accident details in a serious event. Once they had the cellular data connection they added utility for things like lock out assistance and remote start, and locating your car (e.g. in a big parking lot).
This is one of those hysterical overreaches that has no correlation with real world crime at all.
In this case, it may (or may not) be a hysterical over-reach, only time will really tell.
It's a matter of good idea, bad implementation. They push for features, they push for ideas, they push for new, new, new, better, better, better.
But no one thinks about safety and security until something like this happens.
I am software engineer and that's why I don't want anybody messing up with crucial systems. It's so easy to break things, there were quite a few reports about horrible quality assurance processes in car manufacturers... just NO. I buy car, and I'll be happy with v1.0 of firmware, no updates, thank you
Buuuuut... we're talking about OnStar remote access, so that's not very applicable. :)
edit : I meant keys inside the car but no one inside.
"Hey look, I can beep my horn from my phone!"
Hahaha, you've never been downtown in a European city, have you?