See also:

How OnStar Service Works
: This blue button connects you to a specially trained OnStar advisor to verify your account information and to answer questions. : Push this red emergency button to get priority help fro ...

Exterior
Exterior To adjust the mirrors: 1. Turn the control knob to the L (left) or R (right) selecting the driver or passenger mirror. 2. Push the control knob to the left, right, up, or down to a ...

Headlamp Aiming
Headlamp aim has been preset and should need no further adjustment. If the vehicle is damaged in a crash, the headlamp aim may be affected. If adjustment to the headlamps is necessary, see your de ...