See also:

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 ...

Storing Button Memory Positions
To save positions into Button Memory: 1. Adjust the driver seat, seatback recliner, both outside mirrors, and adjustable pedals, if available, to the desired driving positions. 2. Press and hold ...

Diagnostics
OnStar Vehicle Diagnostics will perform a vehicle check every month. It will check the engine, transmission, antilock brakes, and major vehicle systems. It also checks the tire pressures, if the v ...