Jeep 2008 Wrangler Owner's Manual page 159

158 UNDERSTANDING THE FEATURES OF YOUR VEHICLE
13. Continue closing the zipper only along the top edge
of the window.
14. Insert the retainer along the bottom edge of the
window into the bottom side channel, beginning at the
front and working to the rear of the vehicle. Finish by
closing the zipper completely and attaching the Velcro
along the top and rear of the window. Repeat this step for
the opposite side.