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Kia Sportage Key Fob Battery Replacement Guide
How to change a weak or dead battery in a 4th generation 2017 to 2022 Kia Sportage SUV with the part number.

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2018 Sportage Key Fob
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Back Side of Key Fob
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Silver Chrome Button
This automotive maintenance tutorial was specifically written to assist owners of the fourth generation (2017, 2018, 2019 and possibly also the refreshed 2020, 2021 and 2022) Kia Sportage SUV in changing a weak or dead battery located in the key fob remote control for the keyless entry system.

Owners of other Kia, Hyundai and Genesis vehicles such as the Niro, Optima, Soul, Forte, Rio, Stinger, Cadenza, K900, Sorento, Telluride, Sedona, Kona, Santa Fe, Tucson, Elantra, Sonata, Accent, Veloster, Ioniq, Nexo, Palisade, G70, G80 and G90 may also find these DIY instructions to be helpful.

The compatible replacement coin cell (also known as a "watch" or "button") battery is part number CR2032 which is available from various manufacturers such as Panasonic, Energizer, Duracell and Maxell.

No tools are required to access and replace the battery. You might need to use a plastic pry bar tool to open a stubborn battery cover.



 

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Press Button
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Release Metal Ignition Key
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Notch On Left Side
The first step is to press the chrome silver colored button to release the switchblade style metal ignition key.

Locate the void or notch on the left side of the fob where the hinged swing out metal ignition key used to reside.

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Pull Open Battery Cover
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Rear Cover Removed
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Pry Out Old Battery
Insert your thumb into the notch on the side of the fob and gently pull off the back cover.

If you have trouble removing the rear cover, use a plastic pry bar tool to pop it off.

Use your fingernail or a small flathead screwdriver to gently pry out the old battery.

Alternatively, you could turn over the fob and gently tap out the old battery from its socket.

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Old Battery Removed
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Old Panasonic CR 2032
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Push In New Battery
Orientate the new battery with the "+" positive side facing up towards you and the "-" negative side facing down towards the fob and metal electrical contacts.

The original OEM battery in the fob for this 2018 Sportage was part number Panasonic CR2032.

Push a new CR2032 battery straight into the socket.

Make sure the new battery is fully seated in the holder.

Try to avoid bending or damaging the metal electrical contacts.



 

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New Battery Installed
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Line Up Back Cover
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Snap Cover In Place
Line up the rear cover with the back side of the fob.

Gently pop the cover back into place.

Try to avoid using excessive force, the cover should snap into place relatively easily.

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Secure Battery Cover
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Key Fob Re-Assembled

Test New Key Fob Battery
Make sure that the battery cover is flush with the rest of the fob at every edge.

Swing the hinged metal ignition key down and check to see if it can be properly secured in the closed position.

To test the new battery, stand near your SUV and press the "Unlock" or "Lock" buttons.

If the new battery is working properly, you should see the parking lights flash and also hear the door locks opening or closing.

The key fob should not need to be re-programmed. Replacing the battery should not clear the original programming from the fob. If the key fob doesn't work, try removing and re-installing the battery and make sure it is in the correct orientation.

Be sure to record the battery change in your vehicle's service records.

Please check out all of my 2017-2022 Kia Sportage DIY Repair & Maintenance Guides.
 

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