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How to Replace the Key Battery on a Toyota Prius 3

Model: Toyota Prius MK 3, Xw50 - Years 2016-2023
Part: Key

If the key for your Toyota Prius third generation (2016-2023) is not working, don't rush to buy a new one, as the solution might be much simpler and more economical. Let's see how to replace the battery located inside the key quickly and easily. First, remove the emergency key and detach the rear cover. Once done, locate the exhausted battery and replace it with a new compatible one. Finally, reattach the rear cover, and you're finished.

Updated on 24 July 2026 by ScegliAuto

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