Navigation-based Smart Cruise Control (NSCC) is a driving convenience feature that helps you drive at a safe speed on highways and car-only roads based on the road conditions and curves. The navigation-based smart cruise control recognizes the vehicle ahead with the front view camera and front radar, and determines the safe speed range using the navigation system. It automatically decelerates before entering the safe-speed range and curve section, and automatically returns to the previously set speed after passing the safe-speed range and curve section. The Autoset feature automatically changes the set speed to the speed limit of each highway or vehicle-only road. The features such as smart cruise control can be turned on and off by pressing the driving assist button. In addition, it helps to drive at a safe speed on the entrances and exits of expressways and automobile-only roads. The navigation-based smart cruise control recognizes the vehicle in front with the front view camera and front-side radar and detects the entrance and exit using the navigation system. It automatically decelerates in the last lane of the main line before entering the ramp. It automatically decelerates on the curved road on the entry/exit road, and automatically returns to the previously set speed when it exits the curve section.