Do it yourself
Frequently asked questions about cars and motorcycles

How to Change the Key Battery on a Buick Lacrosse

Model: Buick Lacrosse MK 3 - Years 2017-2024
Part: Key

If the key battery in your vehicle is dead and you want to replace it yourself, follow the instructions and steps provided in the description and video. First, take a small screwdriver to pry open the back and remove the cover. This gives you access to the compartment that contains the battery, which you can take out and replace with a new one (model CR 2032). Position the battery with the positive terminal facing up, then close the cover.

Updated on 31 July 2026 by ScegliAuto

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