Cordiant Communications Group's Bates West USA, Irvine, Calif.,
Bates has been Hyundai's only creative and media agency since the brand's 1986 U.S. launch.
The account was put into review late last year. Independent Horizon Media, New York, was also a finalist. Bates had not been invited to pitch.
Also in December, Kia shuffled its top management ranks, naming J.H. Lee president-CEO.