2004 GMC Yukon Owner's Manual - Page 290

Problem No power. Recommended Action The ignition might not be in on or accessory. The parental control button might have been turned on. The power indicator light will flash. The system might be off. The parental control button might have been turned on. The power indicator light will flash. The system might be in auxiliary mode. The disc is upside down or is not compatible. Check the display mode settings in the display menu. Problem In auxiliary mode, the picture moves or scrolls. Recommended Action Check the auxiliary input connections at both devices. Change the Video Format to PAL or NTSC. See "Stereo RCA Jacks" previously for how to change the video format. Disc will not play. The language in the audio Check the audio or or on the screen language selection in is wrong. the main DVD menu. The remote control does not work. Check to make sure there is no obstruction between the remote control and the transmitter window. Check the batteries to make sure they are not dead or installed incorrectly. The parental control button might have been turned on. The power indicator light will flash. The picture does not fill the screen. There are black borders on the top and bottom or on both sides or it looks stretched out. The disc was ejected, The disc is being stored in but it was pulled back into the DVD player. Press the the DVD player. eject button again to eject the disc. 3-132