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How to Replace the Key Battery of the Toyota Prius

Model: Toyota Prius MK 3, Xw50 - Years: 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023
Part: Key

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Video tutorial

Before proceeding with the removal and replacement of the key battery, first remove the physical emergency key by simply pulling it out. Insert the same key into the slot and push upwards to detach the lower cover from the upper one. Next, let the electronic chip drop out and rotate it in the opposite direction.

You will see the used button battery; remove it and replace it with a new compatible one. Finally, correctly reposition all the various components removed earlier, and the replacement is complete.


Updated on 6 June 2026 by ScegliAuto


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by ScegliAuto

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