Abstract: This patent discloses a warning system for a child restraint system. The child restraint system may include a base and a seat connected to the base. The seat may include supports for the back, torso, right leg, and left leg and may include sensors to detect the presence of a back, torso, right leg, and left leg, respectively. The seat also may include a right harness strap and a left harness strap that may connect to a child seat buckle and to a chest clip. The seat also may have a locking clip a tether strap having a hook. The seat may contain detectors to determine whether the straps, buckles, clips, and straps are properly connected while a is present in the seat. If not properly connected, an alarm may sound.