Ethan-n Seattle,
Did you ever solve the TPMS problem described?
I got a set of Snow Tires and new Wheels with the SC430 Sensors installed from the local 'Tire Shop' [i.e. not the Lexus Dealer where I had bought the 2003 car [with summer RTF Tires] a couple months before]. The 'Tire Shop' stated that they can set all cars' TPMS sensors with the electronic tool they have - but not Lexus! The Lexus Dealer is the only one who can do the job!
I went to the Lexus dealer to get the set-up - and he asks me for the Serial Numbers for the 4 Sensors. I did not have the numbers and the 'Tire Shop' did not either ! The 'Tire Shop' is back tracking to see if he can shakeout the numbers! The Lexus Dealer states that he can break open the tires/wheels and read off the Serial Nos.! I asked the Dealer if I get the numbers, how much of a job to set-up the TPMS. He told me 3 hours ! Is this serious ? This should be a simple 30 minute job at most! Why is Lexus perpretrating this complexity - it annoys the customer - surely? !
Did you resolve your situation ? If so, HOW?
Cheers!
Coupe.