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How to Replace the Key Battery in a Jeep Wrangler

Model: Jeep Wrangler JL, MK 4 - Years 2018-2026
Part: Key

If you own the new Jeep Wrangler Mk4 and want to learn how to correctly replace the key battery, follow these steps. First, obtain a new button battery (model CR2450) and a flat screwdriver. Use the screwdriver to remove the back cover of the key and locate the exhausted battery. Replace the old battery with the new one, and then reattach the back cover. Test the key's functionality to complete the process.

Updated on 8 September 2026 by ScegliAuto

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