That one you can probably fix yourself. Push down hard and let go on the rear of the hatch while it is closed. If you can make the same rattle it means that the rubber bumpers on the hatch door are out of adjustment. Open the hatch and on each side of the door near the bottom are the two rubber bumpers. You'll notice a screw on each of them. Loosen the screw and slide the bumper down a bit then re-tighten the screw.