Nexteer’s High Mount Direct Drive Handwheel Actuator (HMDD) is a steer-by-wire system component that captures driver steering inputs and converts them into electronic commands for the roadwheels. The actuator delivers road-feedback torque through a direct-drive motor and advanced control software. Its stationary-hub design keeps the center section fixed relative to the driver, enabling consistent positioning of the airbag, controls and future center-hub features. The compact, high-mount packaging supports alternative cockpit architectures and greater interior design flexibility. HMDD incorporates fault-tolerant controls, dual-path communications and software-defined steering calibration that can be updated throughout the vehicle lifecycle. Designed for integration across internal combustion, hybrid and electric vehicle platforms, the system supports 12V and 48V electrical architectures and left- and right-hand-drive configurations, providing a scalable solution for next-generation vehicle steering systems.