There seems to be a barking noise when pressing the brakes even when engine is not on. Local shop could not diagnose the issue. I heard this could be the regenerative system that is expensive to repair. Braking seems ok but I am concerned as I thought there were some recalls on brake booster for this year but they say not on my car.

- Windsor, CT, USA

I took my car to dealership for warning lights on, hybrid battery malfunction and brake malfunction. Our local dealership here on guam diagnosed and provided me an estimate of over $4K to replace the brake actuator because it's leaking, along with the pump. Car was in motikn when it first came on.

- HagÅTÑA, GU, USA

The contact owns a 2013 Lexus Rx450H. The contact stated while the brake pedal was applied, the brakes locked up and became difficult to stop the vehicle. The brake system warning light was illuminated. The vehicle was taken to keyes Lexus (5905 van nuys blvd, van nuys, ca 91401, (818) 538-2990) where it was diagnosed that the brake actuator needed to be replaced. The vehicle was not repaired. The vehicle was taken to an independent mechanic where the mechanic was informed that the brake actuator needed to be replaced. The manufacturer was contacted but, no further assistance was provided. The failure mileage was 83,000.

- Encino, CA, USA

My 2013 Rx450H' ABS light suddenly turned on while I was driving in a local road. Along with the ABS light, there were brake warning light, master maintenance warning light, slip light on along with "check ABS" "brake system malfunction" warning messages appearing on the dash board. Very unsettling. I took the car to a Lexus dealership and they retrieved error code as "C1391, abnormal leak in accumulator. " they didn't detect any leakage or moisture in the diagnosis, they recommended to replace the ABS actuator and booster bump/accumulator assembly for a price of over $4300. After I did some research of this problem, I ran into many complaint of the same issue with various Toyota and Lexus cars, especially on hybrid models. I also learned the faulty component is the issue and the issue has been there on my car for a long time without my realizing it. Because 1) the ABS assembly would make the chirping sound when I start the car. Since the sound isn't loud, I wasn't aware it was any indication of a problem. 2) I encountered an even more serious symptom of this issue many many times. When I put the gear on reverse shortly after I switch on engine, even while I am stepping on the brake, the car would just move backward, out of control of the brake. I have to release and reapply my foot on the brake to stop its movement. I failed to recognize that this is the symptom of a failing ABS actuator earlier, as I thought it was something the hybrid model has with its electric motor kick in instantly. I also learned Toyota/Lexus offered customer support programs for this specific issue across many models as detailed in this post www.diy-time.com/automotive/Toyota/faulty-brake-actuator-brake-booster-pump-on-Toyota-Lexus-cars/. Lexus should issue sweeping recall to address this prevalent issue in its products. The issue would lead to real safety issues for drivers.

- Redwood City, CA, USA

The brake actuator is failing this is a large scale problem as evident on the Lexus/Toyota forums. Lexus issued a small extended warranty for select models but failed to include all effected models

- Seminole, FL, USA

Brake actuator needs replaced. Car has only 65,000 miles many people are complaining about the actuator not stopping the vehicle according to manufacture standards. As well I personally have issues when at low speeds the brakes make a squeak. When diagnosed at the dealer the dealer noted that this is an an issue with brake actuator and needs replaced. Which is a very common problem.

- Harrisburg, PA, USA