2008 GMC Sierra 1500 Pickup Owner's Manual - Page 134

The rails are notched at each end which allows the tie-downs to be removed and placed on another rail. To remove, pull the locator pin out and slide the tie-down to the end of the rail and pull back. To remove or install cargo tie-downs at the front of the bed, slide the corner cap towards the center of the bed to expose the rail notches. To remove the corner cap, pull either edge away from the rail. To remove the system, loosen the toggle bolts on each rail until they can be removed from the bed of the truck. To replace the system, place the toggle bolts and rails into their original locations and tighten them to a torque setting of 12.5 ft-lbs (17Y). If the system is removed to install a bed liner, make sure there is no bed liner material in the installation points. Notice: If you tie down cargo using the horizontal slots on the top of the pickup box, you may damage the box. Using the horizontal slots on the top of the pickup box for tie-down locations may cause damage to the pickup box and would not be covered by your warranty. Only use the tie-down loops if you do not have the cargo management system. Sunroof If your vehicle has a power sliding sunroof, the ignition needs to be turned to RUN, or the Retained Accessory Power (RAP) must be activated to open or close the sunroof. When RAP is active, the sunroof will work for 10 minutes after the ignition is turned off, or until the driver's door is opened. See Retained Accessory Power (RAP) on page 2-23 for more information. There are two sunroof switches located in the overhead console above the rearview mirror. Vent: From the closed position, press the rear of the passenger's side switch to vent the sunroof. To close the sunroof, press and hold the front of the passenger's side switch. 2-58