CONSUMER STATED UPON BEING IN A PARKING LOT FOUR YEAR OLD CHILD UNBUCKLED CHILD SAFETY SEAT, GOT OUT, AND CLIMBED UP TO THE FRONT OF THE VEHICLE. MOTHER DIDN'T SEE ANYTHING WRONG WITH IT WHILE SHE TALKED ON HER CELL PHONE. HOWEVER, THE CHILD WAS HANGING HIS HEAD OUT OF THE WINDOW AND HIS KNEE WENT DOWN ON THE BUTTON, MAKING THE WINDOW CLOSE ON HIS NECK. CHILD HAD TO BE TAKEN THE HOSPITAL. *AK