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How to Replace the Key Battery of the 2020 Hyundai Tucson

Model: Hyundai Tucson TL, MK 3 - Years 2015-2021
Part: Key

If you own a third-generation Hyundai Tucson (2020) and the remote has suddenly stopped working, follow these steps to correctly replace the battery inside. First, remove the physical emergency key located in the cover to easily disassemble it using a flat-head screwdriver. Next, take out the circuit board and locate the exhausted battery. At this point, remove it and replace it with a new button battery (model CR 2032).

Updated on 16 August 2026 by ScegliAuto

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