A non-contact obstacle detection (NCOD) system for a motor vehicle and a method of operating the non-contact obstacle detection system are disclosed. The NCOD system includes a main electronic control unit adapted to connect to a power source. At least one non-contact obstacle sensor is coupled to the main electronic control unit for detecting obstacles near a closure member of the vehicle. The control unit is configured to detect movement of the closure member, detect no obstacle using the at least one non-contact obstacle sensor, and alter movement of the closure member in response to no obstacle being detected while movement of the closure member is detected.