OnStar Services

See also:

Feature Settings Menu Items
The following are customization features that allow you to program settings to the vehicle. Display In English This feature will only display if a language other than English has been set. T ...

Secondary Latch System
This vehicle has an underbody-mounted tire hoist assembly equipped with a secondary latch system. It is designed to stop the spare tire from suddenly falling off your vehicle. For the secondary la ...

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 methylcyclop ...