How do you reset 2005 Lexus ls 430 brake wear warning light?

Answer 1

The short answer is: You don't. Very simply, this is just a wire, encased in a small piece of plastic, designed to "ground out" on the disc once the brakes wear to a specific place. Once grounded, it will stay grounded. The Lexus solution is to replace the sensors, one each, on the front and rear passenger-side tires. Expect to pay from $25 to $50 each for these...or---

Here's what I did. Not recommending it to you, but it works. Snipped the wire, stripped the ends and wrapped them together, then soldered them, covered with heat-shrink tubing, and used a small plastic tie to get it out of the way. Someone commented "I'm a big boy, and know when to check on the wear of my brakes." Amen to that. With that done, the computer says "No problem with brake wear". and the light goes out. It is not "reset". It is taken out of action. If I feel like spending the money to replace the sensors later, well, that's a piece of cake to do.