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How to Replace the Remote Key Battery for the Toyota Alphard 3

Model: Toyota Alphard Vellfire MK 3 - Years 2015-2023
Part: Key

If the smart key for your Honda Alphard third generation (2015-2022) suddenly stops working, it means the button battery inside is completely dead and needs to be replaced. Here’s how to do it. First, press the button on the back cover and remove the physical emergency key. Next, use this key to open the remote and take out the electronic component inside. Locate the dead battery and proceed with its replacement.

Updated on 25 June 2026 by ScegliAuto

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