A seat pedestal includes an open base upon which a plate assembly is mounted for translational movement upon the base. The plate assembly includes a bottom plate, a seat mount for supporting a seat, and a bearing means between the bottom plate and the seat mount to permit the seat mount to rotate. One lock releasably secures the plate assembly in the driving position and another, which is self-actuating, releases the seat mount so that it can rotate freely when it is in the resting position. A stop carried by the seat mount defines a range in which the seat may be rotated. At least one pair of interlocking members couples the seat mount with the bottom plate to transfer lateral loads born by the seat to the base. The bottom plate, the bearing means, and the seat mount have concentric openings through which wires may pass for accessories such as power/heated seats, headrests, and computer screens and related accoutrements.