It's a 'Technical Service Bulletin' or more correctly a TSIB which is a 'Technical Service Information Bulletin' issued by Lexus, usually in response to customer or dealer complaints, but also from Lexus themselves if they discover a manufacturing problem that affects cars already sold.
The Brake Pad TSIB described the corrective actions necessary to replace the original high friction pads that generated so much dust with a set based on a ceramic material Part# 04465-53030. There's a listing on the site of all the TSIB's covering trim rattles, fuel pipe recall, rubber mat replacement, seat belt changeout, engine rattles from cold etc. etc.
Three-week owner of an 08 IS250 AWD. I do get a lot of dust on the fronts. Should I wait until the 1,000 to get this done? Any other things I should have they fix at 1,000?
Thanks guys. This site is awesome.