[Update] Need key code for 2003 Honda Civic EX with transponder key

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Trying to program a spare key - need the key code for my 2003 Honda Civic EX

Hello! We've developed a VIN-based tool to help you get your key code for the 2003 Honda Civic EX. Check it out here: VIN Key Code Generator.

Replies (4)

My 2003 Honda Civic EX won’t start without that code. Following this closely.

Where exactly do you find the key code on a 2003 Honda Civic EX?

My 2003 Honda Civic EX is basically useless until I get this code. Fingers crossed.

Just tried this on my 2003 Honda Civic EX—anyone else have success?

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Key Programming
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Security Systems
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An anti-theft system that prevents the engine from starting unless it detects the correct transponder chip in the key. The chip sends a unique code to the car's computer when you turn the ignition. No match = no start, even with a physically matching key.
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