2012 Hyundai Sonata brakes problems

Filed Feb 2, 2026 · Brakes · 130,000 miles · AZ

The contact owns a 2012 Hyundai Sonata. The contact stated while driving 70 MPH, the check brake and "Hybrid System Warning Safely Stop - Do Not Drive" messages were displayed on the instrument panel, and the vehicle went into LIMP Mode. The vehicle was towed to the residence, and the contact replaced the hydraulic pressure units and hydraulic unit assemblies (HECU/ABS modules). The contact stated that after the repairs, the failure returned approximately 30,000 miles later. The dealer was notified of the failure, and the contact was provided with an estimate for the repair. The manufacturer was not notified of the failure. The vehicle was not repaired. The failure mileage was approximately 130,000.

Filed Nov 29, 2025 · Brakes, Electrical · FL · fire

Based on what I experienced, the fire appears to have resulted from an internal mechanical or electrical failure that occurred without warning while the vehicle was in motion. No prior issues or dashboard alerts were present at the time, and there was no external impact or damage that could explain the fire.

Filed Oct 5, 2025 · Brakes, Engine · FL · fire

Driving came to a stop ,light turned green made a U-turn to go to the gas station heard a pop noise smoke came from inside the car tried stopping it but the brake pedal sunk into the ground pressed my emergency brake it was seized wouldn’t go down (never had that issue my brakes always work ) I smelled brake fluid and seen the abs light on the dash then the power started to go out and my girlfriend almost got trapped in the car

Filed Oct 1, 2025 · Brakes, Engine · 100,000 miles · NV

The contact owns a 2012 Hyundai Sonata. The contact received notification of the federal safety agency Campaign Number: 18V934000 (Engine, Fuel System, Gasoline). The contact stated that while driving 20 MPH, the vehicle stalled. There was an abnormal knocking sound coming from the vehicle. While driving at an undisclosed speed, the vehicle stalled after five minutes. The engine and the ABS warning lights were illuminated. The vehicle was towed to the residence. The contact called the local dealer and was informed that the maintenance records were needed. The contact was using an independent mechanic for maintenance and did not have the records. The vehicle was not diagnosed or repaired. The manufacturer was contacted and opened a case. The failure mileage was approximately 100,000.

Filed Sep 26, 2025 · Brakes · IL

The part of hand break assembly that’s inside the disk break (the drum assembly) fell off when the dealer ( [XXX] Hyundai, Schaumburg, IL) tried to adjusted. I went to the dealer because the hand break stop to function. I suspect very bad design of the whole assembly disk and drum break. Also the dealer stated that all assembly was rusted. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Sep 5, 2025 · Airbags, Brakes · VA

With no warning my car left me sit on the side of the road and when started the engine made an awful knocking noise. Hyundai denied to replace the engine despite there being at least 2 engine recalls. When I asked why they said it was due to no maintenance records so I provided them with maintenance records like they requested and then they deny it again and say they aren’t replacing the engine because the problem with my engine had nothing to do with the 2 engine recalls my vehicle IS affected by.

Filed Aug 15, 2025 · Brakes, Electrical · MO · fire · 1 injury

I was driving I seen smoke then full flames on my windshield and I tried to stop and put my car in park to get out but my brakes stopped working and I couldn’t get the gear in park so I opened the driver door and had to jump out of the car .I had an engine replacement a year before for it being recalled and police and firefighters were on scene after incident

Filed Jul 12, 2025 · Brakes, Electrical · MO

I started the car, put it into gear and then the breaks wouldn’t work. The car dash said something like check breaks hybrid system failure do not drive. There is not recall on my car but the Hyundai service department doesn’t know how to fix it. This is the second time it’s happened. I’m scared to drive it. Please investigate!

Filed Jul 8, 2025 · Brakes, Electrical · IL

I drive a 2012 Hyundai Sonata Limited. After a recent fill-up, I began experiencing delayed acceleration, engine hesitation, and what appears to be misfiring—especially at low throttle. Most notably, the brake lights stay illuminated even when the car is turned off, which drains the battery and poses a major safety hazard. I scanned the vehicle with an OBD-II scanner and received code P0504, which points to a brake light switch malfunction. I also noticed that pressing the start button with my foot off the brake still starts the engine instead of going into accessory mode—confirming abnormal brake signal behavior. I replaced the brake light switch, which temporarily fixed the issue, but the symptoms returned within a day. After researching, I found there was a recall (the federal safety agency 15V759000) for a nearly identical issue involving the brake light switch and stopper pad. However, my VIN is not listed, even though I am experiencing the same safety-critical symptoms. This issue poses a significant safety risk on the road, and I believe my vehicle should be included in the affected population of the recall or issued a Technical Service Bulletin extension.

Filed Apr 2, 2025 · Brakes, Engine · AL · fire

Unknown Cought fire under the hood was engulfed within minutes