mcleb25

I have had the same issue with mine for almost 2yrs now. When I first reported the issue to Lexus they told me it was because my brake pads were worn. They replaced them and for about a couple months it went away. Then it came back. Took it back again and they told me that the disks were warped and at the same time I had them replace the back brakes. Again, the really loud motorized grinding noise came back and every once in a while the Check Engine/ABS/VSC lights came on. Took it back again and they were able to reproduce the sounds and then they proceeded to tell me it was my master cylinder and that it needed replaced. They quoted me at $2500 parts/labor. I've found an after market master cylinder for $600 and I'm trying to determine if it has everything I need to replace the existing unit. The issue seems to come and go. For instance, I've gone 3 weeks without any sound or lights and just the other day it came back.