Check the lower weight limit of your safety seat to make sure your infant weighs enough to ride safely.
Some seats are for infants weighing at least seven pounds.
It is best for infants to ride rear-facing until at least 1 year of age and at least 20 pounds. If your safety seat is too upright and your infant's head flops forward, you may put a tightly rolled towel under the front edge of the safety seat to tilt it back to a 45-degree angle. Do not recline it too far. To keep your infant from flying out of his seat in a crash, the safety seat harness straps should be pulled snugly. Make sure you follow the manufacturers' instructions for tightness.