2004 Pontiac Grand Prix Owner's Manual - Page 223

BAND (Alternate Frequency): Alternate frequency allows the radio to switch to a stronger station with the same program type. Press and hold BAND for two seconds to turn alternate frequency on. AF ON will appear on the display. The radio may switch to stronger stations. Press and hold BAND again for two seconds to turn alternate frequency off. AF OFF will appear on the display. The radio will not switch to other stations. When you turn the ignition off and then on again, the alternate frequency feature will automatically be turned on. This function does not apply for XM™ Satellite Radio Service. Setting Preset PTYs (RDS Only) The six numbered pushbuttons let you return to your favorite program types (PTYs). These pushbuttons have factory PTY presets. You can set up to 12 PTYs (six FM1 and six FM2) by performing the following steps: 1. Press BAND to select FM1 or FM2. 2. Press the P-TYPE button to activate program type select mode. 3. Turn the P-TYPE knob to select a PTY. 4. Press and hold one of the six numbered pushbuttons until you hear a beep. Whenever you press that numbered pushbutton, the PTY you set will return. 5. Repeat the steps for each pushbutton. 3-119