2008 GMC Envoy Owner's Manual - Page 231

Recommended Action The ignition might not be in ON/RUN or ACC/ACCESSORY. The parental control button might have been turned on. The power indicator light flashes. Disc will not play. The system might be off. The parental control button might have been turned on. The power indicator light flashes. The system might be in auxiliary mode. The disc is upside down or is not compatible. The picture does not fill the Check the display screen. There are black mode settings in the borders on the top and display menu. bottom or on both sides or it looks stretched out. The disc was ejected, but The disc is being stored in it was pulled back into the the DVD player. Press the DVD player. eject button again to eject the disc. Problem No power. 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. The language in the audio Check the audio or or on the screen is wrong. language selection in the main DVD menu. The remote control does Check to make sure there not work. 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 flashes. 3-97