Approximately 70 days ago, my wife, backing out of our garage in our 2008 GX470 was unable to stop the car with the break. Fearing a slow-motion accident with a retaining wall, she opened the driver's door and tried to stop the car with her foot (the other foot firmly planted on the break). After having the car 89 days and doing nothing but an inspection, we find out that Lexus says the car is fine. We have no idea what to do. We are afraid to drive the car--it's brakes failed again that same day (though she was able to use the emergency brake). We've bought 5 Lexus cars over the years--obviously will never buy another one. But we need help now. Any ideas?