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How to Replace the Key Battery on the Scion FR-S

Model: (Various brands) Various
Part: Key

If your Scion FR-S key no longer works due to a flat battery, simply follow the steps outlined in this guide to replace it quickly and correctly. First, press the button located on the side of the cover to release the emergency key inside the cover. Next, use a small flathead screwdriver to dismantle the cover and proceed to replace the old button battery with a new one (model CR1632).

Updated on 20 August 2026 by ScegliAuto

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