2003 Hummer H2 Owner's Manual - Page 149

Volume Control: You can control the volume of the OnStar System using either the volume control knob on the radio or if equipped, the steering wheel volume controls. Telltale Light: This light will indicate the status of the system. A solid green light will come on when you start the vehicle to let you know that the system is on and is ready to make or receive calls. If the light blinks green it means that an incoming or outgoing call is in progress. Press the Communication button if you notice the light blinking and you are not on a call. The light will be red in the event of an OnStar system malfunction. If this occurs press the OnStar button to attempt to contact an advisor. If the connection is made, the advisor will assist you with steps to take to make sure that the system is functioning properly. If you cannot contact the advisor, take your vehicle to your dealership as soon as possible for assistance. Cellular Antenna: The cellular antenna on the outside of your vehicle is critical to effective communication using the OnStar system. OnStar Services The following services are available within OnStar service plans. Your vehicle comes with a specific one-year service plan that allows use of some or all of the following services. D Automatic Notification of Air Bag Deployment: If an air bag deploys, a priority emergency signal is sent automatically to the center. An advisor will locate your vehicle's position, try to contact you and assist you in the situation. If the center is unable to contact you, an emergency service provider will be contacted. D Stolen Vehicle Tracking: Call the center at 1-888-4-ONSTAR (1-888-466-7827) to report your vehicle stolen. The system can then attempt to locate and track your vehicle and the advisor will assist the proper authorities. D Roadside Assistance with Location: For vehicle breakdowns, press the OnStar Services button. An advisor will contact the appropriate help. 2-67