I just bought a used RX300 SUV and it only came with one (1) master key. The car dealership said the car only came one master key. I called my local Lexus dealer and they told me that a key code should have been with the car. But it is missing or the previous owner didn't provide it with the car. I need another key but the Lexus dealer said it'll cost me $250 plus the $50 programming charge for a new key with an electronic chip. Is there a way around this wherein I can save money or program the key myself? Is there another way to get that key code so that I can at least get another key made. The dealer said they'll have to have the key made in Japan. Can anyone help me with this problem?