See also:

Your Responsibility
Increase the volume of the radio if the OnStar Advisor cannot be heard. If the light next to the OnStar buttons is red, the system may not be functioning properly. Push and request a vehicle diagnos ...

Parking Brake
To set the parking brake, hold the regular brake pedal down with your foot and pull up on the parking brake lever located between the seats. If the ignition is on, the brake system warning light ...

Driver Information Center (DIC)
The Driver Information Center (DIC) displays information about the vehicle. It also displays warning messages if a system problem is detected. See Vehicle Messages  for more information. All ...