The effects of pre- and/or postnatal infant car safety education were examined. Educational approaches included demonstrations and talks on automobile crash statistics in the prenatal course; and a car safety film on the hospital television, a pamphlet given to each mother, and instructions to nurses to encourage parents' purchase and use of car restraints in the postpartum period. Although differences were not statistically significant, the reported and actual use of infant restraints on the trip home was highest in the pre- plus postnatal education group. Counseling in any period was associated with higher restraint use than on counseling. The pediatrician's role in effecting positive behavioral changes in this and other areas is emphasized.