The rear cross traffic sensor ds not warn when there is oncoming traffic. It puts me, my passengers and other cars at a safety risk. BMW Palm Springs investigated and tested and states that the system is not providing any error messages. But in physical testing the system ds not work as described in the BMW marketing video [XXX] . I have owned this car for six months and the rear cross traffic sensor has never worked. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)