2016 Lexus Nx

While driving and approaching a red light, my entire breaking system failed. No warning lights appeared, no warning of breaks going bad. Pedal went straight to the floor. Eventually pulled over to the side and had vehicle towed to Lexus. They found the Master brake cylinder to be bad. My vehicle only has 50k miles on it. Only a few more miles and I would have been on the highway going 60 with children in the vehicle! Why would a system fail at 50k miles!!!

The ABS actuator failed. It is available for inspection upon request. The brakes frequently failed, often requiring the brake pedal to be pressed fully to the floor to stop the vehicle, causing severe jolting and near collisions. This created a life-threatening risk to me, my child, and other drivers on the road. A certified Lexus dealership replicated the brake failure issue multiple times during a test drive and confirmed the defective ABS actuator. A trusted local mechanic also identified faulty components, including the master cylinder and spray-painted calipers. The vehicle has been inspected by the certified Lexus dealer and an independent mechanic. There has been no involvement from police or insurance representatives to date. Recently purchased used at 107k. From the initial test drive before purchase, the brakes felt unsafe. Dealer replaced front brake pads. After purchase, the brake pedal often required full depression to stop the vehicle especially during drives longer than 30 minutes.

My brakes have stopped working twice. Each time I'll stop driving for a day and it's normal again. When it happens my brakes feel very loose and I can't control the direction of my car. I have to pump multiple times and/or press all the way to the floor to even begin to feel it begin to brake. I've had my car checked out and nothing was physically wrong with it.

Upon entering a parking lot yesterday and heading down a small ramp my 2016 Lexus NX 200 spontaneously accelerated and even with my foot on the brake did not stop. I was unable to control my car and ending up hitting a tree. All of the airbags deployed; the windshield cracked; the body of the car was severely damaged and I suffered injuries. The car was brought to a body shop and is available for inspection. Fortunately, no other cars were in the parking lot and no one else was hurt. The car will be inspected over the next few days. There weren't any warning signs. I cannot say for sure what mechanical failure occurred to cause the accident, but there was clearly a mechanical failure as the acceleration was beyond my control.