[Update] 2004 Mercury Grand Marquis stuck in anti-theft mode - code lost

3488 views - Last reply: December 01, 2024
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Where's the key code hidden on my 2004 Mercury Grand Marquis for key programming?

Hello! We've developed a VIN-based tool to help you get your key code for the 2004 Mercury Grand Marquis. Check it out here: VIN Key Code Generator.

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My mechanic said this might help with my 2004 Mercury Grand Marquis key issue.

This might finally help me unlock my 2004 Mercury Grand Marquis's key code.

This might finally help me unlock my 2004 Mercury Grand Marquis's key code.

This is exactly what I need for my 2004 Mercury Grand Marquis, thanks for posting!

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