A vehicle object detection system includes a vehicle body structure, a sensing device, a video display and a controller. The vehicle body structure defines a passenger compartment and has an underside section a predetermined height above ground. The sensing device detects height of an object within a prescribed area adjacent to the underside section as the vehicle body structure approaches the object. The video display is viewable from within the passenger compartment and displays images representing the prescribed area adjacent to the underside section of the vehicle body structure. The controller is configured to process object information received from the sensing device in order to determine the height of the object, and display images on the video display representing the object along with a representation of the height of the object relative to the underside section and images representing the underside section of the vehicle.