[Success] Just changed battery, now 2010 GMC Terrain asks for a PIN code

1651 views - Last reply: January 23, 2025
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How to get my 2010 GMC Terrain's key code to program replacement keys?

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

Replies (6)

Been here before with my 2010 GMC Terrain. Let’s see if this one works.

This trick worked for my buddy's 2010 GMC Terrain. Giving it a go myself.

Thanks! This could save me a trip to the dealership for my 2010 GMC Terrain.

Appreciate the tips—trying to unlock my 2010 GMC Terrain key code too.

My 2010 GMC Terrain just blinks. I think this might fix it.

My 2010 GMC Terrain won’t budge without the code. Hoping this helps.

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Professional key programming requires: diagnostic tools to access the immobilizer system, key code software, transponder programmers, and often proprietary manufacturer equipment. Some locksmiths and all dealers have these tools.
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