[Fixed] Trying to flash ECU on 2005 Buick Rainier, code mismatch error

4398 views - Last reply: November 01, 2024
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How can I find my 2005 Buick Rainier's key code to program a new key?

Hello! We've developed a VIN-based tool to help you get your key code for the 2005 Buick Rainier. Check it out here: VIN Key Code Generator.

Replies (6)

Anyone got tips on key code retrieval for a 2005 Buick Rainier?

Thanks! Been struggling with this on my 2005 Buick Rainier for a while.

Why is finding a key code on a 2005 Buick Rainier this hard?!

I’ve got a 2012 2005 Buick Rainier, would this method still work?

Hoping someone can confirm this works for a newer 2005 Buick Rainier.

Bookmarking this for when I work on my 2005 Buick Rainier this weekend.

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