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How to Replace the Key Battery of the Toyota Prius 3

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

In this mini guide for all Toyota Prius Mk3 owners, discover the steps to correctly replace the button battery in the key. First, pull out the emergency key from the cover, then remove the cover and locate the exhausted battery. At this point, remove the old battery and replace it with a new one of the same model. Finally, reassemble the rear cover and insert the emergency key back inside.

Updated on 13 September 2026 by ScegliAuto

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