National attention concerning motor vehicles (MVs) and child safety has focused largely on protecting children as occupants transported in traffic on public roads. However, children who are unattended in or around MVs that are not in traffic also are at increased risk for injury and death. CDC and the nonprofit Trauma Foundation examined data from two databases on both nonfatal and fatal nontraffic MV-related incidents. This report summarizes the results of that analysis, highlights the major causes of this type of childhood death and injury, and underscores the need for effective interventions.