As i was driving, when i pressed the brakes i could hear a grinding noise and did not feel enough pressure on the brake pedal, i got scared and slowed down my speed. it turned out that according to the agency service shop, the brake actuator needs to be replaced since it does not provide enough air/pressure when i brake at a low speeds (it's worn out), plus the cv axle on driver's side is leaking. my point is, it costs me over $3,000 dlls to repair with only 1 year labor/parts warranty; i read that brake actuators for 2006, 2007. & 2008 rx400h lexus and toyota highlander models came out defective, that once they get replaced, they will fail again most likely within a year and lexus has not done anything about it, pretending that there is nothing wrong with it, allowing us to drive our vehicles like that while having our lives at risk. i al so read that mechanics working for lexus companies have stated that lexus spends millions of dollars on brake actuators alone because they get replaced too often. please investigate this issue and if possible force toyota/lexus to do a massive recall. i do not have the money nor can't afford to pay this much money to repair it. i am still making payments towards the cost of the vehicle, over $15,000 about 3 years ago and i do not think this is fair. i am the only driver, live in a small city, and do not drive it much.