2008 GMC Sierra 1500 Pickup Owner's Manual - Page 237

sREV (Reverse): Press and hold this button to reverse playback quickly within an MP3 file. Sound is heard at a reduced volume. Release this button to resume playing the file. The elapsed time of the file displays. Press and hold this button to advance playback quickly within an MP3 file. Sound is heard at a reduced volume. Release this button to resume playing the file. The elapsed time of the file displays. RDM (Random): With the random setting, MP3 files on the CD-R or CD-RW can be listened to in random, rather than sequential order, on one CD-R/CD-RW or all discs in a six-disc CD player. To use random, do one of the following: 1. To play MP3 files from the CD-R or CD-RW in random order, press the pushbutton positioned under the RDM label until Random Current Disc displays. Press the same pushbutton again to turn off random play. 2. To play songs from all CDs loaded in random order, press the pushbutton positioned under the RDM label until Randomize All Discs displays. Press the same pushbutton again to turn off random play. \FWD (Fast Forward): h (Music Navigator): Use the music navigator feature to play MP3 files on the CD-R or CD-RW in order by artist or album. Press the pushbutton located below the music navigator label. The player scans the disc to sort the files by artist and album ID3 tag information. It can take several minutes to scan the disc depending on the number of MP3 files recorded to the CD-R or CD-RW. The radio can begin playing while it is scanning the disc in the background. When the scan is finished, the CD-R or CD-RW begins playing again. Once the disc has been scanned, the player defaults to playing MP3 files in order by artist. The current artist playing is shown on the second line of the display between the arrows. Once all songs by that artist are played, the player moves to the next artist in alphabetic order on the CD-R or CD-RW and begin playing MP3 files by that artist. If you want to listen to MP3 files by another artist, press the pushbutton located below either arrow button. You will go to the next or previous artist in alphabetic order. Continue pressing either button until the desired artist is displayed. 3-101