Fuel Tank: Removal

Remove the rear seat cushion (Refer to SEATS ).
Open the service cover (A) under the rear seat cushion.

Fig 1: Identifying Service Cover (A)
Courtesy of KIA MOTORS AMERICA, INC.
Release the internal pressure of the fuel lines and hoses as following:
1. Disconnect the fuel pump assembly harness connector (A).
2. Start the engine and wait until fuel in fuel line is exhausted. After the engine stalls, turn the ignition switch to OFF position.
3. Disconnect the negative (-) terminal from the battery.
  
  Fig 2: Identifying Fuel Pump Assembly Harness Connector (A)
  Courtesy of KIA MOTORS AMERICA, INC.
Disconnect the fuel feed line (B) and the Fuel Tank Pressure Sensor (FTPS) connector (C).
CAUTION: Cover the hose connection with a shop towel to prevent splashing of fuel caused by residual pressure in the fuel line
Lift the vehicle.
Remove the main muffler (Refer to INTAKE AND EXHAUST SYSTEM ).
Disconnect the fuel filler hose (A), the canister drain hose (B) and the vapor tube (C).
Unfasten two fuel tank band mounting bolts, and then remove the fuel tank from the vehicle.

Fig 3: Identifying Fuel Filler Hose (A), Canister Drain Hose (B) And Vapor Tube (C)
Courtesy of KIA MOTORS AMERICA, INC.