General Child Seat Use Information Buckle Everyone. Children Age 12 and Under in Back! AGE /WEIGHT SEAT TYPE /SEAT POSITION USAGE TIPS INFANTS Birth to at least 1 year and at least 20 pounds. Infant-Only Seat/rear-facing or Convertible Seat/used rear-facing. Seats should be secured to the vehicle by the safety belts or by the LATCH system. · Never use in... Read more →