THE HARNESS ADJUSTER ON MY RADIAN XTSL WAS GETTING STUCK OPEN FREQUENTLY, AND I THOUGHT IT WAS BECAUSE THE STRAP WAS GETTING STUCK OR OFF CENTER, SO I WOULD READJUST AND PUSH IT TIGHT. THEN ONE DAY, THE ADJUSTER SNAPPED OFF ON THE LEFT SIDE (WHEN STARING AT THE SEAT FROM THE FRONT) AND IT SLICED MY FINGER TO THE POINT THAT I WAS GUSHING BLOOD. I WAS TIGHTENING THE HARNESS AFTER PUTTING MY CHILD IN THE SEAT. THE SEAT BECAME UNUSABLE, SINCE THERE WAS NO TENSION WHATSOEVER ON THE HARNESS. I CONTACTED DIONO, WHO REPLACED THE SEAT AFTER I SENT THEM PICTURES. I AM A CPST. *JS