2005 TOYOTA SIENNA User Comment / Complaint

I own a 2005 toyota sienna. the automatic back hatch/tailgate began to not work. when it opens it immediately falls down and even though there is some supposed safety feature that is supposed to have it pop up when it meets an obstruction,one must push with all their might to get it to stop closing. although there have been no serious injuries i have been hit in the head and have strained myself to keep it closed. if a child ever were caught in it,my fear is it could be deadly. my mechanic called the dealer for parts and not only were they ridiculously expensive,but they are hard to get. i called the toyota consumer line and was told they were unaware of any problems with the back hatch or any on going investigations. because of high mileage on my vehicle,this is not covered under warranty any longer. i believe this is a potential fatal accident waiting to happen to somebody and toyota should be responsible for fixing the problem.