How do I properly secure my child into a car booster seat?
Put the booster seat in the location in the vehicle that has a shoulder lap belt, preferably in the center of the backseat, if you have a shoulder lap belt there. Place the child on the booster seat, and secure the shoulder and lap belt around the child properly. The shoulder belt should be resting between the child's neck and the top of the arm. The lap belt should be on the tops of the thighs. The child's head should be fully supported. As children get older, eventually, as long as the child's head is supported up to about the tips of the ears, that will be sufficient protection. You'll want the safety belt snug to the child's body. We recommend that if you have the kind of safety belt that you can lock on the child by pulling the shoulder belt from the top all the way out and then letting it go back so it holds the child in place. That's particularly a good idea for children who are just coming out of the seat with a full snug harness, which they've never had to think about, and are now beginning to have to manage the shoulder lap belt themselves.