See also:

Parking Brake
The vehicle has an Electric Parking Brake (EPB). The switch for the EPB is on the center console. The EPB can always be activated, even if the ignition is off. To prevent draining the battery, avoi ...

Automatic Crash Response
In a crash, built in sensors can automatically alert an OnStar advisor who is immediately connected to the vehicle to see if you need help. ...

Brake Pedal Travel
See your dealer if the brake pedal does not return to normal height, or if there is a rapid increase in pedal travel. This could be a sign that brake service might be required. ...