The distribution of tri-orthogonal stresses in tire-road contact patch has a major influence on automotive safety. The interaction between the tire and road generates forces and vibrations, which causes the failure of the structure. It is important to avoid stress and vibration problems by designing the product at the final stage of producing the product by using various integrated analysis and testing procedure. The study deals with the computational modeling of the stress analysis of radial tire for passenger vehicles. To analyze the tire-road contact stress distribution as a function of inflation pressure and normal load, a model of a tire has been developed. A P195/55R16 Tire is adopted as the subject of this study. The tire model and road surface are created according to the real condition. Interaction criteria with road surface and physical properties of tire are assigned in the ABAQUS/CAE program system. Grids are used according to the specific requirement for both two-dimensional and three dimensional modeling during mesh generation process. By providing the necessary boundary conditions to the system, the solution is obtained. Results are basically obtained as displacement component and stress distribution at the contactsurface of tire.