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How to Replace the Key Battery of a Car

Model: (Various brands) Various
Part: Key

Video tutorial

Today, you will learn how to replace the battery in a car remote key. To perform this operation, press the button located on the back of the remote and then pull upwards on the top part to remove the emergency metal key inside. Once the key is removed, you can insert a flathead screwdriver to open the remote and remove the key battery.

Insert the new battery, then close the remote and reinsert the metal key. For similar or different keys, you may need to unscrew a small screw to perform this operation.


Updated on 28 September 2026 by ScegliAuto


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by ScegliAuto

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