A restraint assembly intended for use primarily, but not exclusively, within motor vehicles to protect occupants from injury resulting from a collision, crash or other impact type of accident in which the vehicle is involved. A plurality of inflatable members are mounted at a plurality of strategic locations relative to the various positions assumed by occupants within the vehicle, such that upon the vehicle being impacted, a central processing unit or like processor structured to sense the impact will automatically inflate the inflatable members so that they assume a protective position which will interact with the occupant to actively absorb and resist the force of the impact resulting from the occupant coming into contact, at an accelerated rate, with the inflatable member(s). A restraining harness is positionable into restraining relation to one or more occupants and includes a lap belt segment, a chest belt segment and a diagonal belt segment extending in overlying relation to an occupant's frontal area and between opposite ends of the lap belt segment and chest belt segment, such that the belt segments collectively form a substantially "Z-shaped" configuration.