Many rollover accidents involving sport utility vehicles (SUVs) have been reported in the United States. More than half of the occupants killed in rollover accidents are totally or partially ejected from the vehicle. This finding has lead us to develop a rollover curtain shield airbag system. This system is made up of curtain shield airbags to help reduce the possibility of ejection of occupants wearing seat belts within the compartment at the time of rollover and a rollover sensor. This article is an outline of the curtain shield airbags and the rollover sensor.