Never place a child safety seat in front of a passenger air bag. Babies less than one year old and less than 20 lbs. Babies less than one year old and more than 20 lbs. Children more than one year old and at least 20 lbs. should ride in a forward-facing child safety seat. Children more than 40 lbs.
Some manufacturers recommend discarding seats after a certain number of years.
Check the owner's manual or call the seat manufacturer to determine if the seat is too old to be used. Parents and caregivers should always read both the vehicle owner's manual and the instructions that come with the child safety seat. More importantly, the best child safety seat is the one that correctly fits the child and the vehicle and is used correctly every time.