Question about 2006 Lexus RX400h Used Cars

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Programming remote to open doors

I bought a 2006 rx400h second hand and the dealer only had one key, not the remote unfortunately. I found a locksmith who wouldcut spare keys and could program the remote key that he suggested I buy on ebay. He succeed in cutting spare keys and also reflashed the car's computer to recognise them asmaster keys. Unfortunately he was unable to program the remote to open the doors.
Does anyone know the correct sequence of door opening/closing/locking/unlocking etc that will program this remote or do I need to take it to a Lexus dealer?

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  • 2 more comments 
  • Ezian May 16, 2008

    Thanks for the prompt response, I'll let you know if Lexus does program it for free. You said "free of cost with car document", what document do I need to show?


  • Ezian May 17, 2008


    Thanks for your help with this. I will bring the title with me. You say that Lexus acknowledges there is an issue with the programming and will program it for free, like a recall? sounds to good to be true!

    Thanks again,


  • Anonymous Jun 08, 2008

    I bought a 2003 tahoe. I have the factoy remotes # 1& # 2.I need instructions on how to program these.

  • Anonymous Mar 24, 2014

    my doors on my 2003 Lexus 430 will not lock unless I use my key. What can I do?



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Dear Customer,

If you didn't change your remote kit than its a best way to take to your dealer ,there is minor problem with sequence so they wil do free of cost with car document.


Posted on May 15, 2008

  • Rahul Narayanan
    Rahul Narayanan May 16, 2008

    like your cars payment details,

    insurance if have,



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