2006 Cadillac STS Owner's Manual - Page 256

F1 r (Previous Folder): Press this pushbutton to go to the first track in the previous folder. Press and hold this pushbutton to reverse quickly within a track. Release this pushbutton to play the passage. REV and the elapsed time of the track will appear on the display. Pressing this button while in folder random mode will take you to the previous folder and random the tracks in that folder. F2 [ (Next Folder): Press this pushbutton to go to the first track in the next folder. Press and hold this pushbutton to advance quickly within a track. Release this pushbutton to play the passage. FWD and the elapsed time of the track will appear on the display. Pressing this button while in folder random mode will take you to the next folder and random the tracks in that folder. F3 RDM (Random): To play the tracks on the CD in random, rather than sequential order, press and release this pushbutton until RDM TRCK appears on the display. Once all of the tracks in the current folder or playlist have been played, the system will move on to the next folder or playlist and play all of the tracks in random order. 3-112 To play the tracks in the current folder in random, rather than sequential order, press and release this pushbutton until RDM FLDR appears on the display. This feature will not work with playlists. When in random, pressing and releasing either single seek arrow will take you to the next or previous random track. Press and release this pushbutton until NORMAL appears on the display to turn random play off. F4 RPT (Repeat): To repeat the current track, press and release this pushbutton until RPT TRCK appears on the display. To repeat the tracks in the current folder, press and release this pushbutton until RPT FLDR appears on the display. Press and release this pushbutton until NORMAL appears on the display to turn repeated play off. F6 DISP (Display): Press this pushbutton to switch between the elapsed time of the track and the MP3 playback information.