2004 GMC Envoy Owner's Manual - Page 210

Press the left arrow to go to the start of the current or to the previous track. Press the right arrow to go to the start of the next track. If either arrow is held or pressed more than once, the player will continue moving backward or forward through the CD. q SEEK r: BAND: Press this button to listen to the radio when a cassette tape or CD is playing. The inactive tape or CD will remain safely inside the radio for future listening TAPE DISC: Press this button to play a cassette tape or CD when listening to the radio. The inactive tape or CD will remain safely inside the radio for future listening. TAPE and/or the CD symbol will appear on the display when a cassette tape or CD is loaded. q SCAN r: To scan the CD, press and hold either SCAN arrow for more than two seconds until SCAN appears on the display and you hear a beep. Use this feature to listen to 10 seconds of each track of the CD. Press either SCAN arrow again, to stop scanning. DISPL (Display): Press this knob to see how long the current track has been playing. ET and the elapsed time of the track will appear on the display. To change the default on the display, track or elapsed time, press this knob until you see the display you want, then hold the knob for two seconds. The radio will produce one beep and the selected display will now be the default. Z (Eject): Press this button to stop a CD when it is playing or to eject a CD when it is not playing. Eject may be activated with either the ignition or radio off. CDs may be loaded with the ignition and radio off if this button is pressed first. 3-90