Welcome to Club Lexus, the world's largest and most active online community of Lexus owners and enthusiasts.
You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Club Lexus community today (click here to register)!
I have the same issue and the code is stating P0420 which is the bank1 02 sensor which is the one under the drivers seat from what I am told. Got the sensor and now need to replace but have heard various about location of it. Told to check out a post in the RX section that talks about taking the drivers seat out to make the change. Is this correct? Thanks.