2002 GMC Sonoma Owner's Manual - Page 191

Using RDS Your audio system is equipped with a Radio Data System (RDS). RDS is a system that receives data along with the audio of the FM station you are currently tuned to. You can use RDS to display program information and to control your radio. With RDS, the radio can do the following: Most RDS stations provide their station name, the time of day and a Program Type (PTY) for their current programming. Some stations also provide the name of the current program. Finding RDS Stations To find RDS stations perform the following steps: 1. Push the SEEK TYPE button or turn the P-TYPE LIST knob to display the program type list. 2. Turn the knob either clockwise or counterclockwise to select a program type. The list is alphabetical. If you select ANY TYPE your radio will seek to the first PTY available. 3. Push the SEEK TYPE button to activate search. VOL (Volume): Turn this knob clockwise to increase volume when RDS interrupts regular play. Turn it counterclockwise to decrease volume. DISP (Display): Press this knob to change what appears on the display while using RDS. Pressing this knob will also display an RDS station frequency or program type when the radio is on. The display options are station name, station frequency, PTY and the name of the program (if available). Pressing and holding this knob will activate the RDS default display. D Seek only to stations with the types of programs you want to listen to, D seek to stations with traffic announcements, D receive announcements concerning local and national emergencies, and D receive and display messages from radio stations. RDS features are only available on FM stations that broadcast RDS information. The RDS features of your radio rely on receiving specific RDS information from these stations. These features will only work when the RDS information is available. In rare cases, a radio station may broadcast incorrect information that will cause the radio features to work improperly. If this happens, contact the radio station. When you are tuned to an RDS station, the station name will appear on the display, instead of the frequency. 3-37