Trunk Lid Open Switch

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

Fig 1: Disconnect Trunk Lid Open Switch Connector
Courtesy of KIA MOTORS AMERICA, INC.
Remove the trunk outside handle (B) after pressing the clips (A).

Fig 2: Press Trunk Outside Handle Clips

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Fig 3: Remove Trunk Outside Handle

Courtesy of KIA MOTORS AMERICA, INC.