Originally Posted by InfernoRedXfire
Most likely it is the rear latch. Wrap some electrical tape around the latch catch.
You can try adjusting the rubber bump stops for the hatch, but that will only fix it temporarily. Do the electrical tape trick, it works perfectly! Trust me, the best 2 cents you'll ever spend.

The TSP just adds a rubber coated trunk latch (the bar in the hole, not the latch on the hatch). The electrical tape does the same thing and it is undetectable.