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So I was working on a 2006 Lexus RX400h hybrid today. I can't believe the stupidity of the braking system. Hybrids, like the prius, usually have a totally electric braking system. A motor pumps fluid into a reservoir to keep pressure up, and pressing the brake allows some of that pressure to the brakes. It's more complicated than a normal car's brakes, but ok.
This Lexus has that system... for the back brakes only. For the front brakes, it has a traditional master cylinder. And also apparently a device called a 'stroke simulator' to either push the brake by itself or provide power assist for you, or both. Not to mention the ABS part of it, which is integral with the electric pump. Absurdly complicated. And, obviously, broken.
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