2005 GMC Sierra 1500 Pickup Owner's Manual - Page 163

4. To add cargo to the box, remove all bows and the back rail and stow them safely. Press the rear side of the sunroof control, located on the overhead console, to open the sunroof. To clean the tonneau cover, use mild soap and water. If necessary, use a soft bristle brush to remove dirt trapped in the grain of the material. To close the sunroof, press and hold the front of the control. The control must be held until the glass stops moving, so that the sunroof will be fully seated. With the sunroof closed, press the rear of the control to open the sunroof to the vent position. The sunroof is also has a roller sunscreen that can be used to block the rays of the sun. The roller sunscreen can be manually operated with the sunroof in an open or close position. To open the sunscreen, press up to unlatch it and roll it back. To close, pull it forward and latch it to the close position. Do not leave the sunroof open for long periods of time as debris can collect in the tracks. Sunroof The vehicle may be equipped with a power sliding sunroof. To open or close your sunroof, the ignition must be on or Retained Accessory Power (RAP) must be active. See Retained Accessory Power (RAP) on page 2-23 for more information. 2-73