2004 Cadillac CTS-V Owner's Manual - Page 173

If you have the Navigation system, use the following to operate the DIC: INFO (Information): Use this button to access the Vehicle Information menu that provides the status of various vehicle systems. See "Vehicle Information Menu (Navigation System)" under Status of Vehicle Systems on page 3-52. TUNE/SEL (Select) Knob: See the information listed previously on this knob. It is equivalent to the TUNE/SEL knob on the Base audio system and is located in the same place. Press the button with the circle on it when it is next to a menu item or a prompt on the right side of the display to select the menu item or acknowledge the prompt. See "Status Menu Item Descriptions" under Status of Vehicle Systems on page 3-52. Navigation/Audio System 3-51