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How to Replace the Key Battery on a Lexus LC500

Model: Lexus LC Z100 - Years 2018-2026
Part: Key

In this new guide regarding the Lexus LC500, we will discover how to quickly and safely replace the button cell battery inside the key. It will only take a few seconds. First, locate and press the button on the side of the cover. Fully slide out the physical key contained within and use it to open the cover. Once you reach the depleted battery, simply replace it with a new compatible model and correctly refit the cover. Finally, insert the emergency key back inside.

Updated on 16 May 2026 by ScegliAuto

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