A saddle-ride vehicle includes a forward travel sensor a brake that decelerates the vehicle by actuation of a rider-operable brake control. A controller identifies a trigger for an autonomous braking event for the brake. A rider sensor system is in electrical communication with the controller and includes one or both of: a rider cognition sensor operable to detect parameters of rider cognition and report rider cognition status to the controller, and a rider physical sensor operable to detect parameters of a physical engagement between a rider and the vehicle and report rider physical engagement status to the controller. The controller is programmed to perform one or both of the following in response to the identification of the autonomous braking event trigger: checking for a positive cognitive engagement of the rider with the rider cognition sensor, and checking for a positive physical engagement of the rider with the rider physical sensor.