[Method] Just changed battery, now Mercury Grand Marquis Wagon asks for a PIN code

3865 views - Last reply: April 24, 2025
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How to find the factory key code to program Mercury Grand Marquis Wagon keys?

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

Replies (6)

Same issue here with my Mercury Grand Marquis Wagon, let me know if it works.

I'm stuck trying to get the key code for my Mercury Grand Marquis Wagon, hope this helps.

I need this so bad for my Mercury Grand Marquis Wagon. Subscribed!

Appreciate any advice—my Mercury Grand Marquis Wagon won’t recognize the key.

Got a dead key fob for my Mercury Grand Marquis Wagon. Need the code badly.

Really need the key code for my Mercury Grand Marquis Wagon, thanks for sharing!

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