OnStar Overview
If equipped, this vehicle has a comprehensive, in-vehicle system that can connect to a live Advisor for Emergency, Security, Navigation, Connection, and Diagnostic Services.
The OnStar system status light is next to the OnStar buttons. If the status light is:
- Solid Green: System is ready.
- Flashing Green: On a call.
- Red: Indicates a problem.
Push 
or call 1-888-4-ONSTAR (1-888-466-7827)
to speak to an Advisor.
Push 
to:
- Make a call, end a call, or answer an incoming call.
- Give OnStar Hands-Free Calling voice commands.
- Give OnStar Turn-by-Turn Navigation voice commands. Requires the available Directions and Connections service plan.
Push to connect to a live Advisor
to:
- Verify account information or update contact information.
- Get driving directions. Requires the available Directions and Connections service plan.
- Receive On-Demand Diagnostics for a check on the vehicle’s key operating systems.
- Receive Roadside Assistance.
Push 
to get a priority connection
to an Emergency Advisor available 24/7 to:
- Get help for an emergency.
- Be a Good Samaritan or respond to an AMBER Alert.
- Get crisis assistance and evacuation routes.
See also:
Gasoline Specifications
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 methylcyclopentadie ...
Compass Variance
Compass variance is the difference between earth’s
magnetic north and true geographic north. The
mirror is set to zone eight upon leaving the factory.
It will be necessary to adjust the compass ...
How to Check
Use a good quality pocket-type gage to check tire
pressure. You cannot tell if your tires are
properly inflated simply by looking at them. Radial
tires may look properly inflated even when
they’ ...