See also:

Engine Oil Life System
The engine oil life system calculates engine oil life based on vehicle use and displays the CHANGE ENGINE OIL SOON message when it is time to change the engine oil and filter. The oil life sy ...

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 ...

Storing a Station as a Favorite
Stations from all bands can be stored in any order in the favorite pages. Up to six stations can be stored in each favorite page and the number of available favorite pages can be set. Stor ...