2008 GMC Yukon Owner's Manual - Page 301

While listening to a disc, press the left © seek arrow to go back to the start of the current track or chapter (if more than ten seconds have played). Press the right ¨ seek arrow to go to the next track or chapter on the disc. This function is inactive, with some radios, if the front seat passengers are listening to the disc. When a DVD video menu is being displayed, press the left © or right ¨ seek arrow to perform a cursor up or down on the menu. Hold the left © or right ¨ arrow to perform a cursor left or right on the menu. PROG (Program): Press this button to go to the next preset radio station or channel set on the main radio. This function is inactive, with some radios, if the front seat passengers are listening to the radio. When a CD or DVD audio disc is playing, press this button to go to the beginning of the CD or DVD audio. This function is inactive, with some radios, if the front seat passengers are listening to the disc. When a disc is playing in the CD or DVD changer, press this button to select the next disc, if multiple discs are loaded. This function is inactive, with some radios, if the front seat passengers are listening to the disc. When a DVD video menu is being displayed, press the PROG button to perform the menu function, enter. Theft-Deterrent Feature THEFTLOCK® is designed to discourage theft of your vehicle's radio. The feature works automatically by learning a portion of the Vehicle Identification Number (VIN). If the radio is moved to a different vehicle, it does not operate and LOC, LOCK, or LOCKED could display. With THEFTLOCK® activated, the radio does not operate if stolen. 3-127