USE Buckle Everyone. Over 20 lbs. Over 40 lbs. Harness straps at or below shoulder level. Harness straps should be at or above shoulder.
Most seats require top slot for forward-facing.
Belt positioning booster seats must be used with both lap and shoulder belt. Do not place infants in the front seat of cars with air bags. All children age 12 and under ride in the back seat. Make sure the lap belt fits low and tight to avoid abdominal injuries. Always fill out the registration card that comes with the seat in case of a recall.