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:
Safety Belt Care
Keep belts clean and dry.
WARNING
Do not bleach or dye safety belts.
It may severely weaken them. In a crash, they might not be able to provide adequate protection.
Clean safety belts only with mi ...
Active Fuel Management®
Vehicles with V8 engines may have Active Fuel Management™. This system allows the engine to operate on either all or half of its cylinders, depending on the driving conditions.
When less power is r ...
Tire Size
The following is an example of a typical passenger vehicle tire size.
(A) Passenger (P&-Metric) Tire: The United States version of a metric tire sizing
system. The letter P as the first chara ...