Hyundai Sonata Hybrid grinding brakes problems

Filed Nov 28, 2023 · Brakes · 113,340 miles · AZ

The contact owns a 2012 Hyundai Sonata Hybrid. The contact received notification of the federal safety agency Campaign Number: 23V651000 (Service Brakes, Hydraulic) however, the part to do the recall repair was not yet available. The contact stated that while driving at an undisclosed speed, the Check Brakes and Hybrid System Warning: Safely Stop and Do Not Drive messages were displayed. The brakes then made a grinding sound while the brake pedal was depressed. Additionally, the vehicle lost motive power while driving. The contact pulled over and restarted the vehicle. The vehicle was taken to the dealer, where it was diagnosed with a faulty HCU (Hybrid Control Unit) and AHB (Active Hydraulic Boost). The dealer retrieved DTC Codes: P1886 (Inappropriate and Low SOC) and C1237: (Primary Pressure Sensor Signal). The dealer replaced the oil valve gasket and recalibrated the brakes. The manufacturer was made aware of the failure. The failure mileage was approximately 113,340. VIN tool confirms parts not available.

Filed Sep 1, 2022 · Brakes · 204,900 miles · GA

The contact owns a 2012 Hyundai Sonata Hybrid. The contact stated that while driving at various speeds, the brake pedal was depressed; however, the vehicle failed to stop. The contact stated that he heard a grinding sound in the wheels. The contact stated that the Hybrid System and brake warning lights were illuminated. The vehicle was taken to an independent mechanic where the brake pads, rotors, and calipers were replaced; however, the failure recurred. The vehicle was taken to several independent mechanics however, the failure could not be duplicated. The dealer was notified of the failure and an appointment was scheduled for October. The manufacturer was not notified of the failure. The failure mileage was 204,900.

Filed Feb 10, 2022 · Brakes · 128,000 miles · FL

The contact owns a 2012 Hyundai Sonata Hybrid. The contact stated that he had changed the battery due to a previous battery failure. The contact stated that when the vehicle was started a warning for "Check Brakes - Hybrid System Warning - Safely Stop and Do Not Drive" message was displayed along with warning beeps. The contact checked the brake fluid level which was full. The contact stated that while the vehicle was parked with the engine running and the brake depressed, the contact heard a high-pitched grinding sound coming from under the hood. The contact stated that the brake pedal shaking abnormally. The vehicle was not taken to the local dealer and had not been diagnosed or repaired. The contact no longer drove the vehicle due to the failure. The manufacturer had not been informed of the failure. The failure mileage was approximately 128,000.

Filed Nov 12, 2021 · Engine · 99,612 miles · AZ

The contact owns a 2012 Hyundai Sonata Hybrid. The contact stated while driving 45-50 MPH, the vehicle started making an abnormal beeping sound. The contact stated that the check engine warning light and several other unknown warning lights illuminated, and the vehicle began to stall. The contact stated that she pulled into a parking lot, parked, and turned off the vehicle. The next day the vehicle was towed to the dealer who diagnosed that the system hybrid module needed to be updated. The contact stated that the system hybrid module was updated; however, the failure reoccurred while driving. The warning message "Hybrid system Warning; Safely Stop and Do Not Drive", and the brake warning light and an unknown warning light illuminated. The contact also stated that the vehicle made an abnormal grinding sound. The dealer was notified of the failure. The manufacturer was not notified of the failure. The vehicle was not repaired. The approximate failure mileage was 99,612.

Filed Mar 22, 2021 · Engine · NC

Tl* the contact owns a 2013 hyundai sonata hybrid. The contact received notification of the federal safety agency campaign number: 20v746000 (engine) however, the part to do the recall repair was not yet available. The contact stated that modern hyundai of concord located at 965 concord pkwy s, concord, nc 28027, (704)262-4408 exceeded a reasonable amount of time for the recall repair. The manufacturer was notified of the issue. The part was not available for the repair. The contact stated that there was a grinding sound coming from engine. Vin tool confirm parts not available. The failure mileage was unknown.

Filed Oct 27, 2018 · Electrical · 4,664 miles · AZ

Hev warning light came on when I started the car in the morning. I heard some grinding and a belt slipping. Diagnosed as generator pulley grinding, alignment marks not aligned. It took from 08/31/18 till 09/07/18 for the repair to be completed.

Filed Oct 17, 2018 · Transmission · 95,000 miles · IN

This event can happen at any time while driving and has happened numerous times during one short trip until I parked the car due to the danger of driving it. While driving, you get an alarm sound and dash indication and the car just dies. You then must pull over quickly and stop. While stopping in this condition, the brakes sound terrible like they are grinding horribly but do stop the car. If you push the button to shut off the car and then push it to restart, then the fault clears and the car drives normally until it occurs all over again. My wife said it had been happening occasionally but never several times during one short trip. She had already taken it to the hyundai dealer and was told that this was not covered under the powertrain warranty and that it was a hydraulic sensor in he the hydraulic pack that would be several thousand dollars to replace. They then assured her that the car was safe to drive. They later stated that they didn't know that the car was shutting off and that they thought that it was only a dash trouble light. This issue puts the driver and occupants in a dangerous situation as it happened to us several times while driving on the interstate. We parked the car after this one trip and started driving a backup car until we could get the problem fixed. The car has less than 100,000 miles, but I believe that it has been an issue since about 36k miles. It started making a funny noise at that time but didn't affect the car in any way and the dealer assured us that this was normal for the car even though the new cars didn't make this noise. Ray skillman hyundai south side in indianapolis has since "fixed" this issue as a goodwill favor, but we just got it back and haven't driven it enough to know whether it is truly corrected. Thanks for looking into this. Have there been any accidents because [xxx] information redacted pursuant to the freedom of information act (foia), 5 u.s.c. 552(b)(6).'

Filed Sep 25, 2018 · Brakes, Steering · 49,900 miles · FL

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.

Filed Sep 12, 2018 · Brakes · 77,000 miles · GA

While driving 65 miles on the highway, vehicle started a ringing noise and an error message appeared on screen "hybrid system warning! Safely stop and do not drive." after that, "check brake ." appeared and the two messages kept switching back and forth. The vehicle then started to slow down by itself and the break pushed down to the floor by itself. The brakes started grinding and I lost control of the vehicle and the vehicle stopped moving, on the highway, with a semi right behind me. The vehicle did not allow me to safely stop, it stopped on it's own. If it had not been for a shoulder close enough to coast to it, a major accident would have occurred. I was an hour away from home and in order to get home I had to keep pulling over, cutting off vehicle, wait a few seconds, drive again, pull over, and wait. I was almost in three accidents. When I got home, I did some research and found more hyundai owners with the same issue. I tried driving it but once again, it did the same thing, in the middle of traffic. I had to have the vehicle towed to the dealership because driving the vehicle is a safety issue. The dealership contacted me and said that the vehicle is not under warranty and that I have to pay $2700. Since this is happening with other vehicles, and it is a safety issue, I feel hyundai should fix it. I had a similar issue a few months ago where the vehicle completely stopped while I was driving 45 miles, in traffic, with error message,hybrid system warning! Safely stop and do not drive." the vehicle does not let you safely stop, it just stops. That issue was under warranty. There is something wrong with the hybrid system. I called hyundai of america to see if they would buy it back or help me out and the representative was very rude and said no. Hyundai doesn't care about the safety of the consumer, just the money. Please help.

Filed Jun 2, 2018 · Brakes · 66,000 miles · CA

I was driving on the freeway at approx. 60 MPH and the parking brake suddenly engaged. The dash alarm went off and the car starting making terrible grinding noises and swerving lane to lane. I was able to fight it and make it to the right shoulder. After turning the car off and on again it disengaged and I was able to drive it for a short distance before it happened again. I had it towed to my house and will take it to the dealer on monday.