A cognitive-driver-assist system includes an object-detection device, an operator-detection device, a control-override device, and a controller. The object-detection device is operable to detect when an object is proximate to a host-vehicle. The operator-detection device is operable to determine when an operator of the host-vehicle is aware of the object. The control-override device is operable to limit operator-authority of the operator while the operator is driving the host-vehicle. The controller is configured to operate the control-override device in accordance with the operator-authority to override the operator and avoid interference with the object when the operator is not aware of the object.