I have had my 2002 RX 300 to my dealer 3 times for a clunk that occurs upon braking. Happens most often after backing up and then your first braking going forward. This started at 2500 miles and has gotten progressively louder. Dealer says it is nothing more than the brake pads setting in. Has anyone else had this problem? Also after 3 trips (at 10K miles) the dealer is replacing the front brakes and rotors due to hot spots that started causing a pulsing on braking (that they could not feel for the other 2 visits)
