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How to Replace the Key Fob Battery in a Buick Lacrosse

Model: Buick Lacrosse MK 2 - Years 2010-2016
Part: Key

Replacing the battery in the key fob of a Buick Lacrosse is a really simple task. Before proceeding, make sure you have the correct battery model, which is a flat CR 2032. Take the key fob of your vehicle and press the metal button that allows the metal key to slide out; at this point, you will need to pry open the side edge of the fob to access its shell. Once the cover is removed, you will have access to the battery compartment. Proceed to remove the old battery and replace it with the new one. Close the shell simply by pressing down with your fingers to snap the cover back in place.

Updated on 10 June 2026 by ScegliAuto

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