Trunk lid open switch

Disconnect the negative(-) battery terminal.
Remove the trunk door trim.
(Refer to Body - "TRUNK TRIM - REPLACEMENT ")
Disconnect the trunk lid open switch connector (A).

Fig 1: Disconnecting Trunk Lid Open Switch Connector
Courtesy of KIA MOTORS AMERICA, INC.
Remove the outside handle (A) after releasing the fixed hooks.

Fig 2: Releasing Outside Handle Fixed Hooks

Courtesy of KIA MOTORS AMERICA, INC.