OnStar

See also:

Exterior Lamps Off Reminder
A warning chime will sound if the exterior lamp control is left on in either the headlamp or parking lamp position and the driver door is opened with the ignition off. ...

Brake System Warning Light
With the ignition on, the brake system warning light comes on when the parking brake is set. If the vehicle is driven with the parking brake engaged, a chime sounds when the vehicle speed is great ...

Exterior Mirrors
Premium Trim Shown, Up-Level Similar Mirror Adjustment 1. Press (A) or (B) to select the driver or passenger side mirror. 2. Press the arrows on the control pad to move the mirror up, down, right ...