This remote works on 2004 - 2006 Hyundai Elantra and 2004 - 2005 Hyundai Santa Fe. The remote's FCC ID can be either OSKLOKA-221T or OSLOKA-240T. Hyundai part numbers: 95411-2D200, 95411-26203, 95411-26201, 95411-26200. Remotes are tested on keyless entry testers to ensure they are functioning properly. Remote includes battery. Have a local automotive locksmith program your vehicle to accept replacement remote(s).