In addition to these, on the sides of the bumper oriented in the transverse direction, there must be more sensors that measure the distance to the side of the car. These sensors measure the parking spaces and allow the system to identify one in which the car fits.So when the driver activates the system by simply pressing a button, and circulates next to the parking band and passes in front of a hole, the system will tell you on the instrument panel display that this hole is worth it. This is the end of the inconvenience (problem for some drivers) of assessing whether that space has enough measure to enter your car. The system will control the steering, and will turn the steering wheel as necessary, and when necessary, without error, thanks to an electric motor. Today these systems can park online, and according to the brand also on battery. For example, the Intelligent Parking Assist system available as an option since 2010 in the third-generation Toyota Prius, performs both types, but it is not the only one, for the record.