How do I remove the harness covers?

To remove the harness covers, loosen the shoulder straps fully and raise the headrest to the highest position. Unbuckle the chest clip and the buckle strap, then extend the extender unit all the way out to locate a metal retainer under the shell and pull it out. Unsnap the seat pad and insert the retainer up through the back of the car seat using the two notches on each side of the headrest pad before replacing the harness covers in storage compartments.