[Working] My 2010 Mercury Mountaineer won’t recognize the key - missing transponder code?

4690 views - Last reply: January 05, 2025
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How can I obtain my 2010 Mercury Mountaineer's key code to program a spare key?

Hello! We've developed a VIN-based tool to help you get your key code for the 2010 Mercury Mountaineer. Check it out here: VIN Key Code Generator.

Replies (5)

Was about to tow my 2010 Mercury Mountaineer. Let me try this first.

Just checking in to say this helped with my 2010 Mercury Mountaineer. Thanks!

Trying this on my 2010 Mercury Mountaineer later. Will report back.

My 2010 Mercury Mountaineer refuses to start. Could be the key code—trying this fix.

My mechanic said this might help with my 2010 Mercury Mountaineer key issue.

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