QUOTE(Nick The Greek @ Nov 20 2006, 06:25 PM) [snapback]396771[/snapback]
Look in your service manual.
10 years / 100000 miles.
It's there in black and white

Why have yours done...you've got another 4k to do yet then?
That doesn't mean a thing,mine is a very low mileage car that does short journeys and every belt does decay over time and i wont trust the high mileage that Lexus say it should be changed, in my case i was right to change it.
Read above post....mine was worn and had a nick in it, i was happy to have it done at that mileage regardless.
Its 6yrs old and out of warranty if i left it and it broke would they fix it for free?.....i doubt it very much and the bill would be a lot larger than it was.