2002 Cadillac DeVille Owner's Manual - Page 139

Communication Button: Press this button at the end of a call. Also press this button to answer a call from the center, or cancel a call if one of the other buttons is accidentally pressed. This button is also is also used to access OnStar Personal Calling and Virtual Advisor services. See the OnStar owner package for more information. Volume Control: You can control the volume of the OnStar System using the steering wheel 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 Services 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. Optimum cellular reception can be obtained when the mast is straight up and down. 2-71