[Working] Need the factory key code to program a key for my Access AMS 646 Basic

3406 views - Last reply: April 24, 2025
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How can I obtain my Access AMS 646 Basic'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 Access AMS 646 Basic. Check it out here: VIN Key Code Generator.

Replies (6)

Great info! Needed this for my old Access AMS 646 Basic.

Great info! Needed this for my old Access AMS 646 Basic.

I tried this trick and it actually worked on my Access AMS 646 Basic!

Can’t believe this worked on my Access AMS 646 Basic. Huge thanks!

Appreciate the tips—trying to unlock my Access AMS 646 Basic key code too.

Really need the key code for my Access AMS 646 Basic, thanks for sharing!

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Lost Keys
1) Contact a locksmith who specializes in automotive keys or your dealership 2) Provide proof of ownership (registration, title, ID) 3) They'll either cut new keys by code or reprogram your car's system 4) This is expensive ($200-$800) as the immobilizer may need resetting.
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