How to reset the power liftgate
If the battery has been discharged or disconnected, or if the related fuse has been replaced or disconnected, for the power liftgate to operate normally, reset the power liftgate as follow:
1
Make sure the gear is shifted to P (Park) position.
2
While pressing the liftgate close button, press the liftgate handle switch for more than 3 seconds. (the buzzer will sound)
3
Close the liftgate manually.
If the power liftgate does not work properly after the above procedure, have the system checked by an authorized Kia dealer.

NOTICE
If the power liftgate does not operate normally, check again if the gear is in the correct position.