Vehicle and Power Issues
OnStar services require a vehicle electrical system, wireless service, and GPS satellite technologies to be available and operating for features to function properly. These systems may not operate if the battery is discharged or disconnected.
See also:
Initial Drive Information
This section provides a brief overview about some of the important features that may or may not be on your specific vehicle.
For more detailed information, refer to each of the features which can be ...
Compass Zone Setting
This display allows for setting the compass zone. See Compass on page 5‑6 for more information. ...
Gasoline Specifications (U.S. and Canada Only)
At a minimum, gasoline should meet ASTM specification D 4814 in the United States or CAN/CGSB-3.5 or 3.511 in Canada.
Some gasolines contain an octane-enhancing additive called methylcyclopentadienyl ...





