[Update] How do I find the ignition security code for 2003 Mercury Grand Marquis?

4274 views - Last reply: November 06, 2024
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Need the factory key code to program a key for my 2003 Mercury Grand Marquis

Hello! We've developed a VIN-based tool to help you get your key code for the 2003 Mercury Grand Marquis. Check it out here: VIN Key Code Generator.

Replies (4)

Looking for the same thing for my 2003 Mercury Grand Marquis, hope someone can help.

Really hoping this unlocks my 2003 Mercury Grand Marquis's mystery code.

Thanks! Been struggling with this on my 2003 Mercury Grand Marquis for a while.

Hoping someone can confirm this works for a newer 2003 Mercury Grand Marquis.

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