Recommended Fuel
Use regular unleaded gasoline with a posted octane rating of 87 or higher. If the octane rating is less than 87, an audible knocking noise, commonly referred to as spark knock, might be heard when driving.
If this occurs, use a gasoline rated at 87 octane or higher as soon as possible. If heavy knocking is heard when using gasoline rated at 87 octane or higher, the engine needs service.
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.
This ...
Security
OnStar provides services like Stolen Vehicle Assistance, Remote Ignition Block,
and Roadside Assistance, if the vehicle is equipped with these services. OnStar
can unlock the vehicle doors remotel ...
Cigarette Lighter
There may be a cigarette lighter located under the climate control system,
inside the front storage bin.
To activate the cigarette lighter, push it into the heating element and let
go. The lighte ...