Vehicle Questions and Answers
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To unlock the trunk of a 2012 Buick Regal, you can either press the trunk release button on the key fob or use the actual key. If the trunk isn't opening with the key fob, it might be due to a dead battery in the fob. To change the battery, you'll need to open the fob by using a coin or small screwdriver to open the battery cover. The battery appears like a silver button with numbers on it. Find a replacement battery by matching the numbers, which can be purchased at your nearby auto parts shop.
That is the most ridiculous thing I've ever heard - no button for the trunk…
To access the trunk of a 2012 Buick Regal, simply press the trunk opening button on the remote key or use the physical key.