Brake Master Cylinder problems of the 2012 Hyundai Genesis

Brake pedal goes to floorboard -- can pump and get partial brake - afraid to drive at higher speeds -- have had the master cylinder replaced and brake system bled- did not help the problem.

On October 23rd, 2019, the brakes on my 2012 Hyundai Genesis r-spec sedan suddenly failed with the brake pedal going all the way to the floor before the vehicle eventually stopped luckily avoiding an accident. I was driving on the highway. The vehicle has 79k miles. I then took the car to the Hyundai dealer in st. Louis park, mn and they determined that the brake master cylinder was faulty and replaced. The diagnosis and repair did not fix the issue as the brake pedal was still spongy and going to the floor intermittently. I will be taking the car back to the dealer to have them fix it correctly. While researching the issue, I have found that multiple other owners of the same car have experienced this issue and the dealer had to replace the abs hydraulic electronic control unit (hecu) as it contained corrosion within the unit due to bad design which causes hydraulic braking failure to occur at any time. This campaign/recall below outlines the issue which I am going to present to the dealer to fix correctly as I am still under warranty. To me, this is a life or death type failure and could result in injuries. Hyundai should be responsible for replacing all abs hecu before lives are lost for all 2009-2012 Hyundai Genesis, not just some vins that they deemed troublesome. They should take responsibility for all cars and immediately contact their owners. Hyundai recall - campaign 12-01-052 TSB: bh Genesis sedan hecu inspection and brake fluid replacement (recall 114) original recall from the NHTSA manufacturer's report date October 29, 2013 NHTSA action number pe13033 potential number of units affected 43,500.

Tl the contact owns a 2012 Hyundai Genesis. While driving 30 mph, the vehicle failed to stop as the brake pedal was depressed to the floorboard. The contact had to pump the brake pedal in order to stop the vehicle. The contact stated that the vehicle exhibited the same symptoms as listed in NHTSA campaign number: 13v489000 (service brakes, hydraulic). The vehicle was taken to a dealer (merced Hyundai, 1620 v st, merced, CA 95340, 209-384-2000) where it was diagnosed that the master cylinder fractured. The vehicle was not repaired. The manufacturer was notified of the failure and stated that the vehicle was not included in a recall; therefore, the contact should get the vehicle repaired. The failure mileage was approximately 51,000.

Tl the contact owns a 2012 Hyundai Genesis. The contact stated that the brake pedal traveled to the floorboard when it was depressed. The failure occurred several times. The vehicle was taken to an independent mechanic who diagnosed that there was a corrosion build up concerning the brake fluid, which affected the hydraulic electronic control unit. The mechanic replaced the brake pads and master cylinder, but the brake pedal continued to travel to the floorboard. The dealer (allen Hyundai, 624 e pass rd, gulfport, ms 39507, (228) 539-5555) was contacted. The vehicle was not diagnosed or repaired. The vehicle was not included in NHTSA action number: pe13033 (service brakes, hydraulic) and NHTSA campaign number: 13v489000 (service brakes, hydraulic), but the failures were similar. The manufacturer was notified. The approximate failure mileage was 74,380.

The brake pedal goes completely to the floor. Brakes act as if failing. Dealer diagnosed brake master cylinder defect, requiring replacement of the master cylinder. Mileage only 67,000 miles.

My wife and I have a 2012 Hyundai Genesis 3. 8 sedan. My wife is the primary driver. She came home one evening and told me that the car failed to stop and went into the intersection as she attempted to stop for a red traffic signal. I immediately drove the car down the street and observed that you had to pump the brakes to stop and the pedal went to the floor. I added some brake fluid and pumped the brakes. I drove the care the next few days and noticed that over time the same thing happened with the pedal going to the floor. I took the car to my mechanic and had all the brakes changed. That cost me over $320. 00. The mechanic advised me that the car had a faulty master cylinder. To shorten the story. Due to the dealer cost of from $275. 00 to $365. 00 for a master cylinder. I bought 2 online and 1 at oreilly auto parts. I spent $105. 00, $81, and $79. 00 for each respectively. Each time the mechanic advised me that the were not compatible. He was so conflicted by the process advised me to take the care to the dealer and told me that with only 91000 miles and a well maintained 4 year old car, it is unheard of for a master cylinder to be faulty. I contacted Hyundai and was told there was no recall nor was my vehicle covered by my factory warrantee. I am a retired auto theft officer so I decided to check with NHTSA for complaints and recalls. I am positive that this recall applies to my car. I have had the same process happen to me regarding the windshield wiper motor. Hyundai would not help so I found a motor at a junk yard. I paid to have it installed. However it only works at one speed. I would like it replaced and a refund for the cost incurred to find and replace it. I also would like the braking system repaired and compensation. Hyundai's recall number is 114. I would like to invoke the lemon law. .