2008 GMC Yukon Owner's Manual - Page 267

Care of Your CD and DVD Player Do not add any label to a CD, it could get caught in the CD or DVD player. If a CD is recorded on a personal computer and a description label is needed, try labeling the top of the recorded CD with a marking pen. The use of CD lens cleaners for CDs is not advised, due to the risk of contaminating the lens of the CD optics with lubricants internal to the CD and DVD player mechanism. Notice: If a label is added to a CD, or more than one CD is inserted into the slot at a time, or an attempt is made to play scratched or damaged CDs, the CD player could be damaged. While using the CD player, use only CDs in good condition without any label, load one CD at a time, and keep the CD player and the loading slot free of foreign materials, liquids, and debris. If an error displays, see "CD Messages" later in this section. Z EJECT or CD (Eject): Press and release to eject the disc that is currently playing. A CD ejecting from a radio with CD and DVD, ejects from the bottom slot. A beep sounds and Ejecting Disc displays. Once the disc is ejected, Remove Disc displays. The disc can be removed. If the disc is not removed, after several seconds, the disc automatically pulls back into the player. For the Six-Disc CD player, press and hold for two seconds to eject all discs. Z DVD (Eject): Press and release to eject the disc that is currently playing in the top slot. A beep sounds and Ejecting Disc displays. If loading and reading of a disc cannot be completed, such as unknown format, etc., and the disc fails to eject, press and hold for more than five seconds to force the disc to eject. f (Tune): Turn to select tracks on the CD that is currently playing. 3-93