Tailgate Open Switch

Disconnect the negative (-) battery terminal.
Remove the tail gate trim.
(Refer to "TAIL GATE TRIM ")
Disconnect the tail gate open switch and rear view camera connectors (A).

Fig 1: Disconnecting Tail Gate Open Switch & Rear View Camera Connectors
Courtesy of KIA MOTORS AMERICA, INC.
Using a screwdriver or remover, remove the tail gate open switch assembly (A).

Fig 2: Removing Tail Gate Open Switch Assembly
Courtesy of KIA MOTORS AMERICA, INC.