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Hyundai Elantra Key Fob Battery Replacement Guide
How to replace the coin cell battery in the keyless entry remote control of a 5th generation 2011 to 2016 Hyundai Elantra.

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Paul B. Michaels
Author & Photographer
Auto Mechanic Since 1989

Elantra Key Fob
Prying With Screwdriver
Pry With Butter Knife
This automotive maintenance "how-to" guide was specifically written to assist owners of the 5th generation 2011, 2012, 2013, 2014, 2015 & 2016 Hyundai Elantra in replacing the coin cell battery in the key fob remote control.

Owners of other Hyundai or Kia vehicles such as the Accent, Sonata, Azera, Veloster, Tucson, Santa Fe, Veracruz, Genesis, Forte, Optima, Rio, Soul, Sorento, Sportage, i10, i20, i30, i35, i40, Tiburon, Avante and Sedona may also find these DIY instructions to be helpful.

A replacement coin, "button" or "watch" type battery for the key fob is part # CR2032 from a variety of manufacturers such as Panasonic, Energizer, Sony, Duracell, Kodak, and Maxell.

The only tool needed to replace the battery is a small flathead screwdriver.

You can also use a butter knife or a coin.

Key Fob Case Opened
Turn Over Remote Unit
Push Out Coin Cell Battery
Locate the notch on the top of the key fob near the "Lock" button.

Use a flathead screwdriver, a butter knife or a coin to gently pry apart the two halves of the key fob. Be careful when opening the key fob case since the plastic buttons may fall out.

Then remove the remote control unit, which is in a rubber case, from inside the plastic key fob case.

Turn over the remote control unit to reveal the old CR2032 3V battery. Use the small flathead screwdriver to gently push out the old battery.


Panasonic CR2032 3V
Push In New CR2032
Insert Remote Into Case
Slide a new CR2032 three volt battery into the slot with the "+" side facing up towards you and the "-" side facing down towards the green circuit board.

Place the plastic "Lock" and "Unlock" buttons in to the top half of the case.

Insert the remote control unit into the top half of the key fob case with the rubber side facing towards the buttons.

Hyundai-Elantra-Key-Fob-Battery-Replacement-Guide-010 Hyundai-Elantra-Key-Fob-Battery-Replacement-Guide-011 Hyundai-Elantra-Key-Fob-Battery-Replacement-Guide-012
Snap Two Halves Together
Then line up the rear cover of the key fob case and snap together the two halves until they are flush all the way around.

Test the new key fob battery by standing near your Elantra and pressing the "Lock" or "Unlock" buttons until you see the parking lights flash.

For more, please check out my other Hyundai Elantra Repair & Maintenance DIY Guides.

If you found this guide to be helpful, please consider making a small donation by clicking on the "Donate" button located to the right of this paragraph. Thank you!
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