Driver Assistance Apparatus, Vehicle Having the Same, and Method of Controlling Vehicle

A driver assistance apparatus includes a first radar sensor having a view of a left rear side outside the vehicle and a second radar sensor having a view of a right rear side outside the vehicle. The first radar sensor is configured to output first detecting data and the second radar sensor is configured to output second detecting data. A controller is configured to process the first and second detecting data, to generate a plurality of detection points based on the processing, to generate a first track and a second track based on the plurality of detection points, to identify a track that is normally detected and a track that is erroneously detected among the first track and the second track, and to warn of a collision in a direction located on the normally detected track.