Trunk lid open switch

Disconnect the negative(-) battery terminal.
Remove the trunk door trim.
(Refer to the Trunk Lid )
Disconnect the trunk lid open switch connector (A).

Fig 1: Disconnecting Trunk Lid Open Switch Connector
Courtesy of KIA MOTORS AMERICA, INC.
Remove the trunk open switch (A) from the trunk garnish after pressing the clips (B).

Fig 2: Removing Trunk Open Switch From Trunk Garnish
Courtesy of KIA MOTORS AMERICA, INC.