The backrest of a vehicle seat having a headrest, which may be displaced from an in-use position to a safety position by the effect of a force generation device, and which is fixed, by means of retaining elements extending into the backrest. The hoop portion and the inner and outer pads, may comprise a circumferentially wound fiber, such as a carbon fiber, and a resin. The playback unit may generate a request for supplement information in response to and indicative of a playback media inserted into the playback unit. If the error value is less than a threshold error value, then the method maintains the existing spreading weights as the current spreading weights to apply to an outgoing data signal. The corrected check images can be then be stored and used to complete or reprocess a remote deposit. The processor controls the valve to provide the steering response selected by the operator, to emulate castoring so that the vehicle is returned to a straight ahead position in the center position of the steering device, to vary the stop angle based on the tire size and to gradually stop articulation at the stop angle, to gradually start and stop articulation so as to avoid hydraulic hammering.