OnStar

See also:

Accessories and Modifications
Adding non-dealer accessories or making modifications to the vehicle can affect vehicle performance and safety, including such things as airbags, braking, stability, ride and handling, emissions s ...

Skidding
There are three types of skids that correspond to the vehicle's three control systems: Braking Skid — wheels are not rolling. Steering or Cornering Skid — too much speed or steering in a c ...

Emergency
With Automatic Crash Response, the built-in system can automatically connect to help in a crash even if you cannot ask for it. Push to connect to an Emergency Advisor. GPS technology is used to ...