Abstract: A passive restraint system for use in motor vehicles which is responsive to the closing of a vehicle door to activate the restraining member of the device. The restraining member is hinged to a center-mounted pedestal and is spring-biased to a vertical position. Closing the vehicle door causes a pushrod mounted under the seat to rotate a take-up roller at the base of the pedestal. This in turn winds up a cable attached to the restraining member, causing the member to swing down to a closed, horizontal position. In this position, the restraining member extends across the lap of a vehicle occupant. The position of the restraining member is made adjustable to suit a particular occupant.