Question about 2008 Toyota Sienna

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Transponder Key Programming

I just purchased a 2008 Sienna and only received 1 key. It is the black master key. Being a cheapskate I didn't want to pay the dealer prices for a new key. I found new transponder key blanks, but is it possible to program them yourself, or does it require special equipment?

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  • Toyota Ed May 11, 2010

    You need the dealer's scan tool to program the new key.

    Also, some of the "cheaper" transponder keys do not program.



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Keys are not all the same, it is possible the key you bought may not work, it should be searched by VIN by the dealer, and the dealer has to program with factory scan tool, should cost no more than .5 hours in labor.

Posted on Jan 25, 2009


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  • 1 First you will need to purchase a blank Toyota transponder key. You can do this from the dealership, a locksmith, or an online source such as eBay. Once you have the key, take the blank key and the master key to a locksmith that he or she can duplicate the key. This will be much cheaper than the dealership.
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