2004 GMC Envoy Owner's Manual - Page 202

Setting Preset PTYs (RDS Only) Up to 12 PTYs (six FM1 and six FM2), can be programmed on the six numbered pushbuttons, by performing the following steps: 1. Press BAND to select FM1 or FM2. 2. Turn the P-TYPE knob to activate program type select mode. TYPE and a PTY will appear on the display. 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 that numbered pushbutton is pressed, the PTY that was set will return. 5. Repeat the steps for each pushbutton. ALERT! will not be affected by tests of the emergency broadcast system. This feature is not supported by all RDS stations. INFO (Information): If the current station has a message, the information symbol will appear on the display. Press this button to see the message. The message may display the artist, song title, call in phone numbers, etc. If the entire message is not displayed, parts of the message will appear every three seconds. To scroll through the message, press and release the INFO button. A new group of words will appear on the display after every press of the button. Once the complete message has been displayed, the information symbol will disappear from the display until another new message is received. The last message can be displayed by pressing the INFO button. You can view the last message until a new message is received or a different station is tuned to. When a message is not available from a station, NO INFO will appear on the display. RDS Messages ALERT!: Alert warns of local or national emergencies. When an alert announcement comes on the current radio station, ALERT! will appear on the display. You will hear the announcement, even if the volume is low or a cassette tape or CD is playing. If a cassette tape or CD is playing, play will stop during the announcement. Alert announcements cannot be turned off. 3-82