Until a few months ago, the brake fluid level in my car has not moved. In the past few months, though, my brake fluid level has steadily dropped to below the Min mark. I checked for leaks all over the car and could find none. Since the Prius friction brakes are used so infrequently I was concerned of where the fluid was going. Plus the fact that I have 35k miles and basic warranty is coming to an end. I just got back from the dealer. The technician checked the car over and also could find no leaks. He topped the fluid back up to the Max mark and said the fluid must have been used by the calipers, etc. I still do not buy this since the Prius pads should not be wearing this fast. At least I have a record of the problem with the dealership for any future issues and the Service Advisor acknowledged this and said he understood. I have never had another non-hybrid car use this much brake fluid in such a short amount of time. Has anyone else had an issue with brake fluid loss of this magnitude? I also took the two TSB's on the Front Brake Rattle and the Rear Brake Squeak and asked to have my brakes updated. The Service Advisor appeared annoyed at first and asked did I have an issue. I told him yes, more in cold weather than warm. They have ordered the parts and I will have to return to have the TSB updates.