Carrying the smart key, you may lock and unlock the vehicle doors. Also, you may start the engine. Refer to the following, for more details.
Locking

Pressing the button of the front outside door handles with all doors closed and any door unlocked, locks all the doors (and hood, trunk).
The hazard warning lights will blink once to indicate that all doors are locked. The button will only operate when the smart key is within 0.7 ~ 1m (28 ~ 40 in.) from the outside door handle. If you want to make sure that a door has locked or not, you should check the door lock button inside the vehicle or pull the outside door handle.
Even though you press the button, the doors will not lock and the chime will sound for 3 seconds if any of the following occurs:
Unlocking
Pressing the button of the driver's outside door handle with all doors closed and locked, unlocks the driver's door. The hazard warning lights will blink and the chime will sound twice to indicate that the driver's door is unlocked.
Pressing the button in the front passenger's outside door handle with all doors closed and locked, unlocks all the doors. The hazard warning lights will blink and the chime will sound twice to indicate that all doors are unlocked. The button will only operate when the smart key is within 0.7~1 m (28~40 in.) from the outside door handle.
Trunk unlocking
If you are within 0.7 ~ 1 m (28 ~ 40 in.) from the outside trunk handle, with your smart key in possession, the trunk will unlock and open when you press the trunk handle switch.
The hazard warning lights will blink twice to indicate that the trunk is unlocked.
Also, once the trunk is opened and then closed, the trunk will lock automatically.
With a smart key, you can lock or unlock a door and even start the engine without inserting the key. The functions of the buttons on a smart key are similar to the remote keyless entry.
If you lose your smart key, you will not be able to start the engine. Tow the vehicle, if necessary, and contact an authorized Kia dealer. A maximum of 2 smart keys can be registered to a single vehicle.
Park your car at the side of the road so that you can work with the Tire Mobility Kit away from moving traffic. To be sure your vehicle will not move, even when you're on fairly level ground, always set your parking brake. Only use the Tire Mobility Kit for sealing/inflation passenger car tires.
Checking the parking brake Check the stroke of the parking brake by counting the number of “clicks’’ heard while fully applying it from the released position. Also, the parking brake alone should securely hold the vehicle on a fairly steep grade.