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How to Change the Battery in a Toyota Vios Key?

Model: Toyota Toyota Various
Part: Key

Video tutorial

In this video, see how to change the battery in a Toyota Vios key version 3. Using a small flat screwdriver, open the key in two halves: in the lower part, you will find all the electronic components enclosed in a transparent casing. With the same flat screwdriver, gently open that as well; above the printed circuit board, you will find the CR1620 button battery at 3 volts, which you can easily find at a newsagent or any supermarket for a few pounds.

Replace it and reassemble the transparent casing, placing it back into the key housing, following the reverse path of disassembly.


Updated on 29 August 2026 by ScegliAuto


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Watch the video!


by ScegliAuto

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