WARNING: This page is about a different car, the 2023 Hyundai Palisade. However, it is still accessible from the selected car via links, so may be relevant.
Disconnect the battery (-) terminal.
Remove the rear floor carpet surface cover (A).
Courtesy of HYUNDAI MOTOR AMERICA
Remove the fuel pump surface cover (A) after loosening the mounting screws.
Courtesy of HYUNDAI MOTOR AMERICA
Disconnect the fuel tank pressure sensor connector (A).