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How to Replace the Remote Battery on a Toyota Sienna?

Model: Toyota Sienna Xl40 - Years: 2021, 2022, 2023, 2024, 2025, 2026
Part: Key

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Video tutorial

In this tutorial, you will learn how to replace the remote battery on a Toyota Sienna, a very simple and quick operation. You will need a replacement CR2450 battery and, if necessary, a small flathead screwdriver.

First, extract the emergency metal key by pressing the designated button. Then, leverage in the indicated slot to separate the two halves of the remote.

Next, remove the internal circuit, replace the battery while respecting the polarity, and reassemble everything by following the reverse procedure.


Updated on 22 October 2026 by ScegliAuto


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by ScegliAuto

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