Brake Disc Pads problems of the 2001 Toyota Sienna

The brakes make noise when ever I apply them. I have taken the vehicle to the dealership for repair a couple of times. First 2 times, they said need service. They did service to clean dust. Even after that, the sound did not go. They mentioned this is normal for all seinna's. They said the sound coming when metal pads hits metal rings, drum. I believe the sound is due to design fault or fault materials. I bought a brand new vehicle and only 20000 miles on it. They refused to replace any parts. They said there is no problem and every thing normal. I am disappointed in buying a brand new seinna xle (higher model) and paid around $30000. Please help me resolve the problem. I called toyata customer service. No help from them. They have 100 reasons to cover up any complaint.

Vibration in rear brakes causing a harmonic noise when coming to a complete stop or if on a downward incline with brakes applied and just barely inching along. This is not the normal squeal from brake pads. I have been concerned that this vibration is causing other parts to become loose. I purchased the 2001 Toyota Sienna xle van new in sept 2000. All of my service is done according to Toyota's schedule and at Toyota of greensburg, PA. The noise started aprox. Feb of 2002 with 19,000 miles on the vehicle. It was reported to Toyota of greensburg, PA on may 10th of 2002 with 22,166 miles. Between may and August of 2002 the van was taken to the dealer 4 times for this problem. During that time they replaced the linings and drums, cleaned the brakes or did something other but the noise always comes back. On August 5th 2002 Toyota of greensburg told me that Toyota was aware of the problem and working on a fix because it is happening on all Sienna vans since 1998. Between then and April of 2003 I keep asking about the repair and the answer was it is not ready. At that point I went to Toyota's arbitration process but they would not do anything since the van now had over 36,000 miles even though the problem started well within the warranty period. I feel there is a vibration problem (sometimes you can actually see the road wheel vibrating also) that could cause other more serious problems but do not know what else to do. As far as I know Toyota has still not developed the repair.

The brakes make a very loud squeaking noise. The dealer told the consumer to ride the brakes for a while until the rust came off. New brake pads were put on the vehicle on 6/5/2003. The noise still occurs.