I own three Nuna Rava car seats. Nuna’s recall notice states that the Rava has a defect whereby debris can enter the harness adjuster and cause the harness to ‘no longer remain tight.’ Since the entire purpose of a car seat is for the harness to remain tight and restrain the child, this is a significant safety issue. However, the only remedies proposed by Nuna are for consumers to ‘check the performance’ of the harness by pulling on it, and at some unstated future time, for consumers to personally repair the defect after receiving a ‘remedy kit.’ These proposed remedies are unsatisfactory. I am not a car seat manufacturer and am not qualified to repair a life-threatening defect. If the defect can be triggered by ‘debris entering the harness adjuster area,’ this presumably could happen while i am driving, a time at which i cannot be checking the harness for functionality. I have raised these concerns with Nuna directly and been rebuffed by boilerplate emails that do not directly address my concerns in any way. I spent between $449-$474 on each of these car seats, which are marketed as high end products that can be used until your child weighs 65 lbs, only to later be told they have a defect that gs directly to my childrens’ safety. Testing for this defect every time i use the car seat is not an adequate remedy because even if i were qualified to test car seats, the defect can apparently arise at any moment, and i cannot test the seats while i am driving. Repairing the products myself is also inadequate because i am not qualified to repair child car seats. I hereby request that the NHTSA pursue a refund from Nuna on my behalf.