mcfancy Posted December 30, 2004 Share Posted December 30, 2004 I've seen several postings about what it takes to replace the master key. I actually had to do it , so heres a word of education. many sites will sell a blank key or a key already cut. but the real issue is getting programmed. there are actuallly 2 programming issues. One is to program so the fob buttons work and sites will give you a long list of procedures to follow to do this. The more important item is getting it programed to actually start the vehicle; a seperate step. This must be done with a special unit that only certified locksmiths and dealers have. You can NOT do it yourself. Repeat, you can NOT program a master key for a lexus rx330 to start the inginition yourself; so pls beware and understand what part you can do and the step you cannot do before proceeding Quote Link to comment Share on other sites More sharing options...
dgorrie Posted December 30, 2004 Share Posted December 30, 2004 As a follow-up, I should point out that the RX330 appears to be different than the '99 RX300 I have. With the '99, you actually can program a key to work with the car as long as you already have a master to work from. I went through the procedure about a year ago. As best as I can recall, the process essentially copies the "smarts" of the old key into the new one. It's a shame they apparently blocked the newer cars from having the same option. Quote Link to comment Share on other sites More sharing options...
mcfancy Posted December 30, 2004 Author Share Posted December 30, 2004 dghorrie, u're absolutely right as the locksmith said they did make the change starting w/the redesign for the 04model Quote Link to comment Share on other sites More sharing options...
Russ White Posted December 30, 2004 Share Posted December 30, 2004 mcfancy, Thanks for the info on the 04 RX330. Something has obviously changed as I was able to purchase black master key from Ebay, have it cut by a locksmith, and do all the programming myself for entry and starting from information previously posted on this site. So I guess for new car owners it's a trip to the dealer - is that correct? Russ Quote Link to comment Share on other sites More sharing options...
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