The dummy plays a major role in occupant safety prediction. Finite element models of Hybrid III dummies have been previously developed for use with the LS-DYNA software. Current improvements in modeling methods and material modeling, as well as advances in computing speed and cost, have allowed for an effort to develop these dummy models in order to achieve better reliability, robustness and stability by implementing a limited amount of flexible bodies, replacing many of the rigid bodies used to model the various components. This paper will discuss the activities related to the improvement of dummy impact-related behaviors, as compared to the Federal Motor Vehicle Safety Standard 572, and the calibration of these dummies in component and subsystem calibration simulations.