Audi Park Assist is an automatic parking system found on some Audi models. The system uses ultrasonic sensors (and the backup camera on some models) to locate park spots and detect obstacles. Once a spot is found the system can determine the proper steering-wheel inputs necessary to get into the space. The car will steer itself, with the driver only having to control the brake and throttle. The system works both when parallel parking on the street and when parking transversely in a parking lot. Even when not automatically parking the vehicle the system can warn of objects around the car and alert the driver. When it comes time to leave the Park Assist system can also provide the ideal path to follow to get out of the parking spot.