2003 GMC Yukon Owner's Manual - Page 151

Cargo Cover Cargo Tie Downs Your vehicle may be equipped with cargo tie downs in the rear cargo area that allow you to strap cargo in and keep it from moving inside the vehicle. Sunroof Your vehicle may be equipped with a power sliding sunroof. To open or close your sunroof, the ignition or RAP needs to be active. See ″Retained Accessory Power″ under Starting and Operating Your Vehicle. Press and release the rear side of the button located in the front overhead console to express-open the glass panel and sunshade. To close the glass panel, press and hold the front of the button. The glass will not be fully seated unless the button is held until the glass stops moving. With the sunroof closed, press the forward side of the button to open the sunroof to the vent position. The sunroof is also equipped with a sunshade which you can pull forward to block sun rays. The sunshade will not close when the sunroof is open. When not using the tie downs, flip them down out of the way. 2-57