When activated, the system will send emergency crews to your location even if you're unable to respond to an OnStar operator. It's also good for seeing just how hard your vehicle pulls away from ...

OnStar is a service GM launched in 1996 that can aid consumers during an emergency and provide hands-free voice assistance and real-time traffic and navigation. The amount of data the system, ...

It works like the SOS feature in OnStar or in a Mercedes-Benz vehicle, except it's automatic - eCall automatically dials the Europe-wide 112 emergency services number when an accident happens.

Pulling 0.99g on a drag strip after putting in a quarter-mile run in just 11 seconds triggered this Caddy's onboard 'OnStar' safety system to call for help! As you'd expect, this is no ordinary ...