1998 Lexus key fab program

[Anthony Filipich]

I have only the Valet key,other key the key fab,can't find anyone that can program new key to car any suggestions please thank you

[Anthony Filipich]

No one seems to have model listed in program even dealer doesn't,if i lose only key im screwed

[1990LS400]

My understanding is that a Lexus dealer can program a new master key from the valet key so that it can start and run the engine.  The valet key has security chip it in it - same as a master key.

Programming the master key's remote function to open the doors is a separate operation and does not require having any functioning master keys - instructions are attached.

I watched Lexus dealer techs program a new master key for my similar 2000 LS400 over and over due to my wife losing hers.

 

1998 LS400 key programming.pdf