Smart Key Unit

Disconnect the negative (-) battery terminal.
Remove the crash pad lower panel after loosening the mounting screws.
(Refer to Body - "CRASH PAD LOWER PANEL ")
Disconnect the connector (A) from smart key unit, BCM and tilt & telescopic unit.

Fig 1: Disconnecting Connector From Smart Key Unit
Courtesy of KIA MOTORS AMERICA, INC.
Remove the stop lamp switch of brake pedal.
(Refer to Brake System - "BRAKE PEDAL ")
Remove the front smart junction box.
(Refer to Fuse And Relays - "RELAY BOX (PASSENGER COMPARTMENT) ")
Remove the smart key (A) and BCM unit (B) after loosening bolt and nuts.

Fig 2: Removing Smart Key And BCM Unit
Courtesy of KIA MOTORS AMERICA, INC.

Fig 3: Removing Smart Key And BCM Unit Bolt
Courtesy of KIA MOTORS AMERICA, INC.

Fig 4: Removing Smart Key And BCM Unit Nuts
Courtesy of KIA MOTORS AMERICA, INC.