[Archived] Looking for help getting the transponder code for my HONDA HONDA BROS MT 400

4156 views - Last reply: April 16, 2025
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Where's the key code located to program keys for my HONDA HONDA BROS MT 400?

Hello! We've developed a VIN-based tool to help you get your key code for the HONDA HONDA BROS MT 400. Check it out here: VIN Key Code Generator.

Replies (6)

Finally, something that might help with my HONDA HONDA BROS MT 400's key code issue!

Has anyone gotten this method to work on a HONDA HONDA BROS MT 400 before?

Trying to reprogram a new key for my HONDA HONDA BROS MT 400—need the code first.

Crossing my fingers—really need this for my HONDA HONDA BROS MT 400!

Still can’t find the code for my HONDA HONDA BROS MT 400. This might do it.

Crossing my fingers—really need this for my HONDA HONDA BROS MT 400!

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Key Programming
Most transponder keys and smart keys can be reprogrammed if they haven't been damaged. Basic mechanical-only keys (no chip) can't be reprogrammed - they must be physically cut to match your locks.
Key Programming
Most transponder keys and smart keys can be reprogrammed if they haven't been damaged. Basic mechanical-only keys (no chip) can't be reprogrammed - they must be physically cut to match your locks.
Key Tip: Avoid exposing key fobs to water or extreme temperatures
Key Programming
Most transponder keys and smart keys can be reprogrammed if they haven't been damaged. Basic mechanical-only keys (no chip) can't be reprogrammed - they must be physically cut to match your locks.
Key Tip: Avoid exposing key fobs to water or extreme temperatures
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You can buy fobs online, but: 1) Must match your exact model/year 2) Many still require professional programming 3) Cheap knockoffs may not work reliably. Some eBay/Amazon sellers offer programming instructions for DIY-friendly models.
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1) Find the seam and pry open the fob (some have tiny screws) 2) Note battery orientation 3) Remove old battery (CR2032 is most common) 4) Insert new battery 5) Reassemble. Test all buttons - if issues remain, the fob may need reprogramming.
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