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How to replace the key battery of the Lexus UX

Model: Lexus UX MK 1 - Years: 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
Part: Key

Video tutorial

In this video tutorial, we will go through the steps to disassemble and replace the battery in the remote key for the Lexus UX. First, take the remote in hand and remove the physical key from inside it. Then, use something thin and pointed to pry off the back cover, as shown in the video.

At this point, access the battery compartment, remove the old battery, and replace it with a new one (of the correct type and with the same code); insert it the right way round and reassemble your remote!


Updated on 28 August 2026 by ScegliAuto


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Watch the video!


by ScegliAuto

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