Infant rear-facing car seats are designed for babies until at least one year old and 20-30 pounds.* Infants must ride in the back seat facing the rear of the vehicle. This offers the best protection for the infant’s neck. Never put an infant in the front seat of a vehicle with a passenger air bag.
Rear-facing car seats can be infant or convertible models. A rear-facing seat should recline at a 45 degree angle to keep a baby’s head from rolling forward and blocking their airway. Keep harness straps snug (allow one finger of space under the harness at the collarbone) and fasten harness clip at armpit level.
Some models have a base that can be left installed in the vehicle while the seat is used to carry the baby. If the car seat has a carrying handle, put it down while in the vehicle.
*Some newer infant-only models are designed for babies up to 30 pounds.
Children over one year old and between 20 and 40 pounds can be in forward-facing car seats. Forward-facing seats can be convertible, integrated* or forward-facing only models.
Place the car seat in upright position. Fasten the harness clip at armpit level. Keep harness straps snug. Route harness straps in upper slots at or above shoulder level.
*Integrated (built-in) seats eliminate compatibility issues because they are anchored directly to the vehicle.
Children between 40 and 80 pounds (usually 4 to 8 years old) should be in booster seats. Booster seats are designed for children who have outgrown a convertible child safety seat.
All booster child restraints are designed for forward-facing use only. Some booster seats must be used with both lap and shoulder belts.
There are three types of auto booster seats: shield booster, belt-positioning booster (base only) and high-back belt positioning booster. If a child's ears are above the level of the vehicle's back seat, a high back booster seat is needed to protect the head.
Usually children over 80 pounds and eight years old can fit correctly in lap/shoulder belts. Lap and shoulder belts should fit low over the hips and upper thighs and snug over the shoulders.
Never put shoulder belts under a child's arm or behind the back. Review your owner's manual to fully understand how your safety belts work.
Visit the National Highway Traffic Safety Administration (NHTSA) website for additional information on child passenger safety.