2003 GMC Yukon Owner's Manual - Page 269

Remote Control To use the remote control, aim it at the infrared window below the video screen and press the desired button. Direct sunlight or very bright light may affect the ability of the entertainment system to receive signals from the remote control. If the remote control does not seem to be working, the batteries may need to be replaced. See "Battery Replacement" later in this section. Objects blocking the line of sight may also affect the function of the remote control. Remote Control Buttons O (Power): on or off. Press this button to turn the DVD player v (Title): Press this button to return the DVD to the main menu of the DVD. 3-115