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How to Replace the Key Battery on a Hyundai Sonata

Model: Hyundai Sonata LF - Years 2015-2019
Part: Key

Are you ready to change the remote key battery on this car model? Below is the procedure and the necessary steps to correctly perform the replacement. First, extract the emergency key and use it to lever off the cover. Under the cover, you will find the battery, which you can remove and replace with the new one, ensuring the polarity remains unchanged. Then, refit the cover, and the job will be complete.

Updated on 6 June 2026 by ScegliAuto

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