Car seats provide the most protection for your child, and should be used as long as possible. After outgrowing car seats, your child should always wear a seat belt while riding in a car. You need to know how to use your car seat safely. Put your child into the seat with his normal clothing on. Do not bundle blankets before adjusting the car seat harness.
Blankets make it impossible to position the seat harness correctly.
Tighten the seat harness so that it is snug against your child. Then, make sure the car seat is held firmly in place by putting the seat belts from your car through it. The seat belt should be tight enough to keep the car from moving. Every new car seat comes with directions for installing it in your car and using it correctly. Read the directions carefully, and contact the manufacturer if you have any questions.