How to Use Booster Seats
Booster seats are used for children who have grown out of traditional car seats. A booster seat boosts the child up so that lap and shoulder belts that are designed to fit an adult will adequately fit the child and keep him safe in a car accident. It is recommended that children who have grown out of regular car seats ride in booster seats until they are at least 8 years old and 4 feet 9 inches tall.
Instructions
Test the fit of the booster seat in your car before you buy it. The seat should sit flat against the back seat in your car. It should not tip over easily, and it should fit with the contour of the back seat in your vehicle. Place the booster seat in the middle of the back seat, where your child will be safest if you are in a car accident. Use positioning clips on the booster seat if available. Thread the shoulder belt through the positioning clip located on the booster seat. Adjust the shoulder and lap belts to be in the proper position. Place the shoulder belt directly over one shoulder, diagonal across the chest, so it does not rub the child's neck. The lap belt should sit high on the lap just above the thighs, not over the stomach. Buckle your child into the booster seat the first couple of times he uses the seat. This will ensure that the child is secured correctly. Eventually, he can learn how to use the seat and buckle himself in the right way.