general problems of the 2012 Hyundai Sonata - part 1

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.

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.

The part of hand break assembly that’s inside the disk break (the drum assembly) fell off when the dealer ( patrick 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.

The contact owns a 2012 Hyundai Sonata. The contact received notification of NHTSA 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.

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.

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!.

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 (NHTSA 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.

Unknown cought fire under the hood was engulfed within minutes.

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.

In October of 2023, I was driving my 2012 Hyundai Sonata hybrid to the laundry mat about a quarter of a mile from my home. I stopped at a stop light and all of a sudden, a warning sound burst from my dasher board. The message stated, "hybrid warning-do not drive: check brakes". The brakes completely stopped working, the pedal was to the floor and the accelerator was stalling. After managing to get the vehicle back to my home, naturally I went to the dealership (langdale Hyundai of valdosta) and informed them of the issue. They informed me there was no issue, charged me for a diagnostic and sent me on my way. Once I provided proof of my car stopping mid-drive, they began to check wiring and such. What they told me the issue was is a hydraulic power unit. I had it replaced, still the same issue "check brakes". I only have 116k miles on this car, bought it with 72k in 2021, so I haven't driven it much. It spent 8 months in Hyundai dealership in holiday, FL for a brand-new hybrid battery in 2022. I have been looking online for anyone that knows more about this issue so I can get it resolved. It turns out there are thousands of people who are just like me. I believe this is indeed a recall issue. I believe this is an issue is an emergency issue, brakes giving out while driving is an issue that needs to be addressed. This has been happening for years, and Hyundai has not done one thing on it. It's happening with newer vehicles as well as older. Langdale Hyundai of valdosta was not much of a help at all, to be honest, I don't trust their workers at all. I believe they do nothing and charge customers for the max that they can.

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.

Active hydraulic booster failed while driving. 2012 with 114,000 miles on it. Brand new engine and transmission installed from prior recalls. Hyundai dealership said it was covered under anything and would cost $5k to get fixed.

The driver side seat belt wont click and stay in almost half the time I drive my car… after reading other complaints its looking like this is a common thing. Within the past year ive noticed lots of times that when im going to lock my car with my fob, it wont lock and its because the passenger side lock button on the inside of door is in a stuck between lock/unlock position… resulting in me having to lean over to manually unlock the door even when I’ve unlocked my car with both the fob and inside button… all the sudden I noticed too that my speed control will not work at all and be completely unresponsive most times. It will randomly work when I try checking it on highway. Ive had so many issues with my taillights going/burning out constantly and now my headlights have gotten really dim. Im scared to drive at night now. They are much more dimmer than a cars should look like usually. Within the past week I just noticed a random big crack in the dashboard on the passenger side as well… noticed that seems to be a common thing and concern of safety with lots of others who own and drive this same vehicle… my first thought was “what if this crack will effect the airbag and make it deploy?” the crack is literally right over and above where the airbag is… plan on trying to take my car to place on okc that did the anti-theft system software update on my car… but my car has gotten so bad when driving ill be lucky if it makes it there in one piece. My car has started to shake so bad when im driving!!! almost “jumping” at times it feels like. This car has been a pretty good car but when there are multiple complaints of the same issues that continuously keep costing us money and its not because of our doing and in fact the manufacturers faulty equipment and parts that they used to make these cars… they should most definitely be doing recalls and fixing these problems at no cost!.

I believe this is the same issue as the Hyundai recall #170 (activation of the engine management system's brake pedal override feature). While pressing the accelerator, my car will stop accelerating until I let off the gas pedal and then press it again. This is an intermittent issue and unrelated to any fuel delivery system. I confirmed it was a brake pedal issue because my brake lights would not turn off and I could shift out of park without my foot being on the brake pedal. I feel like this could be a pretty big issue for properly signally drivers behind me as well as when I’m trying to drive in heavy or speedy traffic, e. G. , merging onto or within interstate traffic.

Brake system warning, puts car in limp mode on freeway nearly causing rear end collisions.

On July 29, 2024, my 2012 Hyundai Sonata hybrid was parked in our driveway. About 10 minutes later an engine fire started that consumed the car. The local fire departmemt put out the fire but the car was totaled. The fire also destroyed a storage shed and some windows were damaged. The car was taken to the Hyundai dealer for servicing when the engine light came on on March of 2024. The car was left for a few days with the dealer. The NHTSA recall number 23v651000 was not repaired during that service call.

Emergency brake started engaging while the car is in motion. Usually, 10-15 minutes after starting the car. We were told the hydraulik brake booster pump needs to be replaced. The car is at only 60k miles.

While I was driving after picking up my daughters from school the car start giving me a hybrid system warning and a brake message on the dash with brakes not working properly so I stop and get the car tow to my mechanic it was scary since I have my 2 daughter with me my mechanic said the problem is the hecu and needs replacement he tell me there is a recall #251 I call the dealer but they said only cover a fuse no the actual defected part that doesn't make sense I seen a lot of complain of this part going bad hopefully Hyundai do something to make right and fix the actual problem and dont put life on risk like happen to me and my daughters.

Check engine light comes on, brake system malfunction warning message appears and says to pull over, vehicle goes into limp mode. Hyundai dealership says $150 to diagnose problem.

Saying check brakes and safely pull over hybrid battery failure.

•brake failure •this has happened at indiscriminate times including the highway, suddenly the car tells me to stop driving and the brakes don’t work as they should, no telling this would happen until it occurs. When pressing brakes, a loud noise rumbles through the car and I am no longer able to drive at any speed higher than 5 mph (an issue for being on the road) risk of possible collision as this happens suddenly and gives short time to take action •uknown •was inspected by local dealer, they said it was the primary pressure sensor which is a part of the hydraulic brake booster pump. They wanted to replace the entire hydraulic unit even though it was only the sensor that was faulty and it would cost me $3,503. 61 which is an absurd price for an electrical issue that I did not see coming at all and it is a robbery of regular people who need their cars to get to the places they need to be (work and family) this is not a luxury, I need my car •no warning signs or lights until the issue actually occurred. The only light that showed was the abs lights, maybe it’s linked to the recall about the brake fluid leaking causing fires?.

My Sonata 2012 the engine was replaced it seized up on the highway. Since then ive had multiple issues; 1. My brake pedal seems to get pulled to the floor all the way at random times I have to pump the brake for it to release itself. 2. Ive replaced the purge valve 3 going on 4 times as well as the cadilac converter due to it being clogged. 3. My car is so loud it makes a hissing noise and a winding sound people say its my transmission going out but no one can pinpoint the problem. 4. My brake lights and head lights go out all the time been replaced bout 100 times. Lights on the dash r on; airbag, check engine tire pressure . Please I need my vehicle looked over by a professional and or help replacing these issues ASAP.

What component or system failed or malfunctioned, and is it available for inspection upon request? hybrid warning system: safely stop and do not drive. Yes it is available for inspection. How was your safety or the safety of others put at risk? I lost complete control of braking when the alarm went off, the brake pedal went to the floor, made a grinding sound, was driving at a slow speed and able to pull over and stop the car. Turned car of and turned back on alert went away, slowing started driving and alert returned and loss of brake has the problem been reproduced or confirmed by a dealer or independent service center? car is currently at a Hyundai dealership being evaluated, they are unable to reproduce error as of today 1/26/2024 has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? not as of today. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? 1/24/2024 this was the 1st time this error occured.

Brake light appeared intermittently while I'm in the middle of traffic. My vehicle's hybrid system warning light came on aside from the brake light and tells me to pull over and not to drive the vehicle. I towed my car to the dealership for inspection. After inspection done ,the service advisor tells me that they need to change the abs module due to possible internal leaking besides the fuse. They quoted me $3574. 71 to fix the abs module excluding other brake components. I asked them to change the fuse only. Abs problem and brake light are still on and vehicle is not drivable.

Hyundai states this vehicle may catch fire while parked or while driving. They have advised not parking inside due to fire risk. We do not feel safe driving the vehicle any more than on local low speed city streets, as it might be impossible to safely pull over should it catch fire while driving at high speeds on a highway. We have been waiting months for Hyundai to fix this, cannot get a straight answer as to when that will happen. They have refused to provide a loaner or rental car, so we are currently stuck with a car that is close to completely useless and apparently presents a fire hazard even while sitting in our driveway. Can NHTSA assist?.

The contact owns a 2012 Hyundai Sonata. The contact stated that while operating the vehicle and depressing the brake pedal, the brakes failed to respond intermittently. The contact was unaware if any warning lights had illuminated. The vehicle was not taken to the dealer and was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 93,000.

The contact owns a 2012 Hyundai Sonata. The contact stated that while operating the vehicle and pressing the brake pedal the vehicle would not immediately stop and had experienced extended stopping distances. The vehicle was taken to the local dealer who was unable to duplicate the failure and no service was performed. The manufacturer was not notified of the failure. The failure mileage was 92,000.

Several times a week I get "hybrid system warning. Check brakes" that comes with red flashing light on the dash and beeping noise. When I turn the car off, give it a few seconds and restart the car, it goes away. It has mostly been happening when I am parked so it is not an issue to shut it off and restart. Two days ago, this happened while I have driving on the street and when I applied the brakes, it went down to the floor with grinding noise. I was going about 35 mph and no cars in front of me so I was able to come to a stop on the street with hazards on. I turned off the car, restarted it and the issue went away. I have researched this online and it looks like many people are having the same issue. Many have taken their vehicle to the dealer to get the issue fixed and the dealer is unable to fix the issue because they cannot recreate the problem. I am afraid that this might lead into an accident and feel like something that Hyundai should do a recall on.

Alarm started and hybrid brake check warning instructed to pull over and do not drive. This happened while driving down the road. The car lost power and would not accelerate. The brakes were gone and were making a grinding noise.

The abs (antilock brake system) or bms ( brake module system) warning light illumination came on flashing “do not drive “ and the brakes sieze-up making it impossible to drive. Key Hyundai in jacksonville previously charged me $2600 to replace the bms and within warranty. A few months later the same company charged me another $342. 56 to diagnose the same issue. I had to rent a car for $700 while in the service repair department. Key Hyundai was unable to fix my 2012 Sonata hybrid except offering me a replacement hybrid battery and control system for $12,900. I declined. I believe that the campaign 251 involves this problem. I had to get the car towed to another mechanic that is currently working on the vehicle.

I noticed a clicking noise when pressing and releasing the brake pedal that had not been there before. I started hearing that sound 3-5 days ago. After driving to pick up food I noticed smoke coming from the engine area then the car burst into flames. The fire depress called a they put out the fire.

Check engine lights on and says “warning do not drive the hybrid brakes may fail do not drive “.

I went to start my car up 10 days ago and it began to alarm with a message to check the brake system. My car was stuck and wouldn't drive. This also happened in July 2022 while I was on the highway. I could no longer accelerate and the gas pedal no longer gave power. I had to put on my hazard lights and coast to the far right lane. I took it to the Hyundai dealership near by and they said it wasn't safe to drive. I left it there and was told that Hyundai would replace the part in good faith at no charge but charged me $700 for labor. This is becoming a problem. I was told the car could catch fire while driving or while parked and that I could continue to drive it. I decided not to drive it because I do not feel safe.

2012 Hyundai sonta the car brakes out of no where. Comes to a stop .

It has been 4 months that I was instructed to park vehicle outside. This is frustrating. I think they should replace the module and get it over with.