Trunk Lid Lock problems of the 2010 Hyundai Elantra

Trunk lid opens by itself either when driving or while parked. Had my 2010 Elantra towed to dealer Saturday 03/05/11 after hearing a loud sound under rear of car as if something metal had broken, then it sounded like something under the rear of the car had dropped, then a loud scraping noise occurred, this happened while turning right into my paved driveway. I stopped immediately and looked under the car, there was nothing in the road or my driveway. As I pulled the car in the driveway loud rattling and scraping sounds and sounds of springs stretching and breaking were coming from the left rear wheel, I looked for anything foreign stuck in the wheels and saw nothing. The dealer said all they found was rust on the rotor. Give me a break, all rotors rust and it rained all day Sunday before they looked at the car. I had driven the car at least 45 miles that Saturday before this all occurred, there would have been no rust left on the braking surface of the rotors by then. Besides rust does not cause the sounds that I heard. Also when the car was up on the flat-bed I noticed the left rear wheel was on a slant. I will ask the dealer to fully inspect the suspension and if they can pull the rear rotors off to inspect the emergency brakes and to check out why the trunk lid opens by itself on Tuesday 03/08/11, and I will let the NHTSA know the results. Updated ivoq 03/11/11.