This document presents the requirements for the design, manufacture of a mechanical prototype to mobilize people with motor disabilities, in order to reduce the effort when entering or leaving a vehicle, for the assembly several anthropometric factors and the necessary requirements for the passenger seat of the Nissan Pathfinder S.E. vehicle were analyzed. For the manufacture of the mechanism, ASTM A36 steel and an AISI 1045 medium carbon steel plate were used, due to their properties and handling. Subsequently, the modeling was carried out in a CAE program and through the analysis of finite elements, deformation results, maximum stresses and safety factors of the prototype and an auxiliary element such as the running board were achieved. In the operational tests carried out it was evident that the displacements and rotation angles of the mechanism obtained an efficient performance when entering and leaving the vehicle cabin, achieving easy handling, being medical and occupational safety personnel who witnessed the final result.