Chevrolet 2005 Silverado 1500 Pickup Owner's Manual page 160

3. Remove the three bows by gently pushing them
against the spring-loaded end. The three bows
are labeled front, center, rear to remind you of the
order in which to reinstall them.
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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.
4. To add cargo to the
box, remove all bows
and the back rail
and stow them safely.