A vehicular driver monitoring system includes a pneumographic sensor disposed in a cabin of a vehicle and operable to capture sensor data indicative of breathing of a driver of the vehicle. The pneumographic sensor measures an aspect associated with breathing of the driver. A control includes electronic circuitry and associated software, with the electronic circuitry including a data processor operable to process sensor data captured by the pneumographic sensor. The control, responsive to processing of sensor data captured by the pneumographic sensor, monitors the driver based on the measured aspect associated with the breathing of the driver.
