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How to Replace the Key Battery of the Honda Accord 2021

Model: Honda Accord MK 10 - Years: 2018, 2019, 2020, 2021, 2022, 2023
Part: Key

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Video tutorial

If you want to replace the battery inside your Honda Accord key (2021 model) yourself, follow the steps outlined in this guide. First, purchase a new CR 2032 battery.

Then, remove the emergency key from inside the cover and use it to detach the rear cover to access the exhausted battery you wish to replace. Finally, simply remove the flat battery and replace it with the new one. Refit the rear cover correctly, and you're done.


Updated on 23 October 2026 by ScegliAuto


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by ScegliAuto

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