Thread: Toyota/Lexus masterkey programming instructions
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Old 02-26-2005, 10:59 AM
Matt_IS300 Matt_IS300 is offline
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Toyota/Lexus masterkey programming instructions
Hello everyone. I recently purchased a 2001 IS 300 w/only 1 masterkey. I eBayed a 2nd key and downloaded instructions on how to program it myself but it's not working. I've tried about 5 times now and the security light won't stop flashing when the 2nd key is in the ignition.

Any ideas/help?

Matt
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