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How to Replace the Key Fob Battery for the Toyota Sienta?

Model: Toyota Sienta Nph170 - Years: 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023
Part: Key

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Video tutorial

Follow these steps to replace the battery in your vehicle's key fob: gather a small screwdriver, first remove the emergency key, and use the screwdriver to pry open the back cover of the fob. Once open, you will find the circuit board underneath, which should be removed by prying it out. Below, you will see the battery that can be taken out and replaced with a new one (model CR 2032). Then, position the new battery (positive side always facing up) and the circuit board, and finally close the fob cover by pressing it down with your fingers.


Updated on 25 June 2026 by ScegliAuto


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by ScegliAuto

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