A vehicle door system having a vehicle door, a stationary handle fixed to the vehicle door, a door switch, a power latching mechanism and a wiring harness with a sealing grommet is provided. The body includes a plurality of radial retention pin cavities for receiving retention pins. Additionally, the cover includes a device in communication with the first transmission tab and the second transmission tab. A control store memory is organized with primary and secondary data areas and primary and secondary parity areas. At least one of the insertion end and the removal end has one or more pleats. With the elastic connecting sections, the backrest connected to the backrest support via the side and the middle fixing sections is allowed to elastically deflect in multiple directions relative to the backrest support, making the backrest more comfortable for leaning.