Brakes Failed problems of the 2013 Hyundai Sonata Hybrid

On 05/10/2018, I noticed severe vibration and clunking in steering wheel. Brought vehicle to Hyundai dealer and they replaced the flexible coupling in the steering column due to wear. On 08/08/2018, I brought the vehicle to the Hyundai dealer for routine service and asked them to check the brakes as I experienced an intermittent loud squeaking from the brake pedal. They were unable to diagnose the problem. On 09/25/2018, I attempted to start the vehicle from a stationary position and when I depressed the brake, the pedal went all the way to the floor and a warning came on the dash advising me that the brakes had failed and I needed to stop immediately. I shut the vehicle off and then attempted to restart. Upon restart the warning condition did not reoccur. Vehicle towed to Hyundai dealer for diagnosis. I was advised that the issue seems to have corrected itself and the brake system simply needed to be recalibrated.

Tl the contact owns a 2013 Hyundai Sonata Hybrid. While driving 10 mph, the brake pedal was depressed and traveled to the floorboard. The contact attempted to stop the vehicle by shifting the gear shifter into reverse, but it failed to shift from drive. All the warning indicators illuminated. As a result, the vehicle collided with a street sign. The contact sustained back injuries that did not require medical attention. A police report was filed. The vehicle was towed to the contact?s home. The dealer (keyes mission hills Hyundai, 10240 sepulveda blvd, mission hills, mission hill, CA 91345, (818) 221-4000) was contacted and informed the contact to have the vehicle towed to an auto body repair shop. The manufacturer was made aware of the failure and informed the contact to take the vehicle to a dealer for determination of the brake failure. The contact stated that the vehicle was towed back to the dealer, but a failure could not be determined. The vehicle was not repaired. The approximate failure mileage was 73,000.

I was approaching a red light while driving in city traffic, traveling 35-40 mph, when I took my foot off the gas to slow down and prepare to stop for traffic and the red light. When I applied my brakes, the pedal went all the way to the floor and the vehicle would not slow down or stop, warning chimes began to go off. I swerved to avoid hitting several vehicles in front of me as I applied the emergency brake, which only gave enough resistance to slow but not stop the car. I was able to get my vehicle to slow to a stop when it started to roll backwards, the only way I was able to keep the vehicle from rolling backwards was to shift it in to park. Once I was safely stopped, I observed in the information notification center a brake system failure message, which was the reason for the warning chimes. I contacted Hyundai roadside assistance and they towed it to the nearest Hyundai dealership. This is the 2nd complete brake failure in 6 months, 9th time in and over 30 days, and counting, for brake issues.