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How to Replace the Key Battery in a Toyota Aygo

Model: Toyota Aygo Ab40, MK 2 - Years: 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023
Part: Key

See other generations:
Video tutorial

Often, issues with the key of your Toyota Aygo are simply due to a flat battery. Fortunately, replacing it takes very little time and involves minimal cost.

To proceed, rotate the cover on the left side and locate a small slot. Insert the tip of a small flat screwdriver into the slot and gently push outward to separate the two parts of the cover.

Remove the battery cover and then take out the old battery. Replace it with a new one and correctly reposition the rubber cover.

Finally, reattach the two parts of the cover.


Updated on 8 June 2026 by ScegliAuto


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Watch the video!


by ScegliAuto

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