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Home > Features of your vehicle > Keys > Replacing the key battery

Replacing the key battery

Remote key
Smart key


  1. Pry open the key cover gently.

  2. Replace the old battery with a new battery.



If swallowed, a lithium button battery can cause severe or fatal injuries within 2 hours.

Keep batteries out of reach of children.

If you think batteries may have been swallowed or placed inside any part of the body, seek immediate medical attention.


The battery is CR2032 (3V).


Leaving children unattended in a vehicle with the keys is dangerous even if the vehicle is ACC or ON position.

Unattended children could place the mechanical key in the ignition switch or press the ENGINE START/STOP button and may operate power windows or other controls, or even make the vehicle move, which could result in SERIOUS BODILY INJURY OR EVEN DEATH.

Never leave the keys in your vehicle with unsupervised children, when the engine is running.

  • The remote key or smart key is designed to give you years of trouble-free use, however it can malfunction if exposed to moisture or static electricity. If you are unsure how to use or replace the battery, Kia recommends to contact an authorised Kia dealer/service partner.

  • Using the wrong battery can cause the remote key or smart key to malfunction. Be sure to use the correct battery.

  • To avoid damaging the remote key or smart key, don't drop it, get it wet, or expose it to heat or sunlight.

  • An inappropriately disposed battery can be harmful to the environment and human health. Dispose the battery according to your local law(s) or regulation.