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How to Replace the Key Battery of a Toyota

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

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Video tutorial

If you need to replace the remote key battery on this model of Japanese car, the steps required to achieve this are outlined below. Take a sharp object to pry open and detach the rear cover of the key where the Toyota logo is located.

Once the cover is removed, you will find the compartment containing the battery; use a sharp object to pry it out. Then take the new battery and position it in the housing with the positive terminal facing upwards, and proceed to reattach the cover.


Updated on 18 July 2026 by ScegliAuto


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by ScegliAuto

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