OnStar Overview

See also:

Reverse Tilt Mirrors
If the vehicle is equipped with memory mirrors, there is an option to have the mirrors tilt down, when in R (Reverse), to more easily see the ground near the vehicle. When the vehicle is shifted ...

Lumbar Adjustment
To adjust the lumbar support: Press and hold the front or rear of the control to increase or decrease lumbar support. Press and hold the top or bottom of the control to raise or lower the ...

Chime Volume
This feature allows you to select the volume level of the chime. Press the customization button until Chime Volume appears on the DIC display. Press the set/reset button once to access the se ...