I HIT A CURB SIDE AND MY BUCKLE UNLATCHED AFTER FURTHER CHECKING I NOTICED WITH LITTLE RESISTANCE IT SOMETIMES UNLATCHES EVENTHOUGH IT MAKES THE CLICK SOUND. I HAVE TO SAY THAT I NOTICED IT IN PAST UNLATCH BUT I THOUGHT I MAY HAVE NOT PUSHED IT WELL. BUT IT SEEMS PART IS DEFECTIVE. *TR