2003 GMC Sierra 1500 Pickup Owner's Manual - Page 256

Finding a PTY Station (RDS, XMTM and DAB) To select and find a desired PTY perform the following: 1. Press the P-TYPE button. P-TYPE and the last selected PTY will be displayed on the screen. 2. Select a category by turning the P-TYPE knob. 3. Once the desired category is displayed, press either SEEK arrow to select the category and take you to the category's first station. 4. If you want to go to another station within that category and the category is displayed, press either SEEK arrow once. If the category is not displayed, press either SEEK arrow twice to display the category and then to go to another station. 5. If PTY times out and is no longer on the display, go back to Step 1. If both P-TYPE and TRAF are on, the radio will search for stations with the selected PTY and traffic announcements. SCAN: You can also scan through the stations within a category by performing the following: 1. Press the P-TYPE button. P-TYPE and the last selected PTY will be displayed on the screen. 2. Select a category by turning the P-TYPE knob. 3. Once the desired category is displayed, press and hold either SCAN arrow, and the radio will begin scanning within your chosen category. 4. Press either SCAN arrow again to stop at a particular station. To use the PTY interrupt feature, press and hold the P-TYPE button until you hear a beep on the PTY you want to interrupt with. When selected, an asterick will appear beside that PTY on the display. You may select multiple interrupts if desired. When you are listening to a compact disc, the last selected RDS station will interrupt play if that selected program type format is broadcast. 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 XMTMor DAB. 3-101