I'm an exeric and I'm here to demonstrate how to remove the harness system from the DL no car seat and to use it as a booster. First thing you need to do is you need to take the buckle in the back here and remove the harness like so. Secondly, you're going to remove the harness tie from each individual side of the harness. And then since it's already unbuckled in the back I'm going to pull this through right here. I'm going to remove the lock type test put, right so. Then I remove the buckle time. Flip it to the side. Use a folk screwdriver to unscrew the plate on this side of the car seat. And there you go. Repeat the exact same process on this side and you are now ready to use the booster feature.