We have used our sunshine kids radian 80sl carseat since december. it was pointed out to me that our superlatch system may be defective. i went and looked at our seat and sure enough our carseat has a superlatch issue. the tightening belt on the superlatch can be loosened at the press of my pinky. this loosens the seat which is connected by the latch. i am in the process of getting the issue corrected. (related vehicle information: model year=2009, make=corolla, model=toyota ). *tr