The check engine light intermittently comes on, when on the car will stall when trying to accelerate, often accelerate when not intended, and runs rough. A second issue seems to be with the ABS system. On several occasions the ABS systems seems to engage and will not allow you to use the breaks (almost leading to several rear end collisions).

- Alachua, FL, USA

This is a follow-up to former Complaint #11450586 (05-Feb-2022) and confirms that both my local Hyundai Dealer -and- Hyundai Corporation (USA) are aware of this diagnosable- and fixable problem-?"but they fail to issue a recall. In fact, a Service Advisor at my dealer expressly vocalized that 1) he himself [excluding his colleagues] has seen at least -2- of the same incident recently; and that 2) Hyundai Corporation (USA) issued a -??(service) bulletin-?? about the problem. PROBLEM: The vehicle: 1) has a high idle; 2) shows a solid-illuminated CEL/emissions light; 3) severely resists braking-?"my vehicle would even slide through stop signs; 4) fails to -??pick up-?? normally; and 5) drives unsteadily. This is at minimum and is my experience from both last week and from the original report on 05-Feb-2022. As explained to me today (28-Mar-2022) by my Service Advisor, there is a known fault with a component within the engine (Powertrain). Specifically, there is a tube that is-?"as I understand-?"meant to be FREE of fluids. However, and per the Bulletin, the tube becomes full or over-filled with oil from the engine (Powertrain). Further, the Advisor suspects that changes in temperatures (e.g., such as the teens back in Feb 2022) causes that oil/fluid to expand and contract, causing (further) damage. This issue must be remedied by Hyundai Corporation (USA) immediately because it is a *SAFETY RISK.* My Dealership emphasized severely how unsafe it would be to drive the vehicle off their premises without a repair. I-??m fortunate because I-??m the original owner and thus am covered by the 10 yr/100,000 mi Powertrain warranty. PLEASE SAVE LIVES FROM THESE -??FLYING-??, UNCONTROLLABLE CARS BY MANDATING A RECALL. * will provide Dealer-??s documentation once vehicle is repaired. I was advised to wait 2-8 wks for parts and repair.**

- Mentor On The Lake, OH, USA

The day I bought the vehicle from carmax, it was brough to my attention that theses been a recall request on the vehicle's parking break system. I'd like to get that checked out. Also, it seems as tho my left rear tire runs out of pressure quite frequently, as I've had to fill it up twice in the last two days (it got down to 24 for a day.) these are immediate risks that I need taken care of asap. Thank you fr your time

- Round Rock, TX, USA

The emergency parking brake light does not come on when set, however parking brake does function.

- Harrisonburg, VA, USA

I own a 2015 Hyundai Sonata and I own it since beginning. All of a sudden the key features such as blind spot detection (bsd), along with anti-lock braking system (ABS) and car skidding prevention system stopped to work in my car. I contacted Hyundai dealership (with my car clocking about 62,650 miles) and I was told that such important safety features are not covered under warranty. When I contacted Hyundai usa corporate office, I was told that such key safety feature can go wrong any time which was such a shocking news for me and my family. My car does not detect any vehicle which is coming/passing through at high speed, and the real worst thing is that it's anti-lock braking system (ABS) and skidding warning system are not at all functioning which compromise the safety of my family. I am really concerned for the safety of my family and other people traveling in different car at the same time. My family's safety means nothing for dealership or tp Hyundai corporation but they are just concerned to bill me and my family hundreds of dollars for their faulty parts/safety system at this pandemic time.

- Pembroke Pines, FL, USA

TPMS module failure in concert with ABS module failure. Result in increased braking effort, warning lights and speedometer inoperative

- Stockton, CA, USA

The contact owns a 2015 Hyundai Sonata. The contact stated that while his wife was pulling out of the driveway, the brakes failed to operate without warning. Due to the failure, the vehicle rolled into some bushes at a low rate of speed which stopped the vehicle. The vehicle regained normal braking function. The contact also stated that upon approaching a four way stop, he depressed the brake pedal however, the brakes failed without warning. Due to the failure, the contact drove through an intersection and another vehicle swerved to avoid crashing into the contact's vehicle. The contact also stated that the vehicle regain braking functionality soon after the failure. The manufacturer was notified of the failure and the contact was informed that there were no recalls on the vehicle. The contact was given a case number. The vehicle was not repaired. The failure mileage was approximately 67,000.

- Walkerton, IN, USA

Brakes and rotors have been replaced. Noticed that it's taking longer for me to stop along with squealing of front brakes.

- Buena Park, CA, USA

Hybrid system warning. Check brakes. Do not drive. The car shuts down while you are driving and you get this warning with alarms dinging loudly. It renders the car unusable and is unsafe in traffic. If you turn the car off and wait you can restart it but it just happens again. It happens on the freeway at high speed and on slow side streets. Took it to the dealer and they said it was a sensor in the brake booster so we replaced it. A week later it happens again. About a year before we got a similar message: Hybrid system warning. Do not drive. But it didn't say anything about the brakes. Happened multiple times at varying speeds in all weather. The dealer replaced the 12V battery and the message stopped. Now we get the brake problem instead. This is very unsafe as your car shuts down at high speeds! dealers appear to have no solutions that are correct. It is a common complaint on Hyundai owner forums. See the following: Https://www.Hyundai-forums.com/threads/2018-Sonata-hybrid-hybrid-system-warning-safely-stop-and-do-not-drive-warning.652789/#post-5895713

- Houston, TX, USA

For the past 6 months I've been experiencing brake issues. It happens randomly, sometimes while I am driving (at speeds ranging from 20-65 mph) and sometimes when I am stopped at a stop sign. It even happened while I was sitting in traffic on a hill driving into yosemite valley! when it happend, the car issues a warning saying that there is a brake failure and to pull over safely. It feels as if something is dragging on the front wheels and the car stops on its own. I took it to local mechanic but they couldn't diagnose the issue and suggested I take it to Hyundai. I took it into Hyundai this weekend and the mechanic said that they were familiar with the issue and says it has something to do with the hydraulic brakes alerting the system to brake when it shouldn't be. It's going to cost me around $2500 to fix it, which is a hefty sum and unfortunately will have to come out of my wedding budget for my wedding in 6 months. It sounds like something Hyundai should take care of. This is incredibly dangerous, I could've gotten into an accident if the cars behind and around me were not paying attention when the brake failures occurred. I thought I would be okay if it happened after once or twice. But I got really scared when it happened in yosemite since there was no place to pull over so I decided to take it in.

- San Francisco, CA, USA

At 91000 miles the hydraulic braking system failed. Hyundai has a 100000 mile warranty on the powertrain for this vehicle but they refused to repair the car under warranty. This is a pretty common problem and I believe that there should be a recall at least, if they are not going to cover it under warranty. Repairs are astronomically expensive. I was quoted more than 7000 dollars to fix the problem. When the problem occured, the brakes become unusable and the car had to be towed to the dealership. I think Hyundai and its dealers should be held accountable for this type of failure.

- Hempstead, NY, USA

When parking or driving at any speed the ABS and traction icons highlight at random moments and may stay on while driving or may turn off.

- Indianapolis, IN, USA

I seen my vehicle had a recall about the brake light. I seen it flashing so I thought something was wrong with my brakes I had them change my wheel barrels changed routers changed and it still make a scrubbing noise

- Birmingham, AL, USA

The contact owns a 2015 Hyundai Sonata. While driving various speeds, the brake pedal was applied, but the vehicle failed to respond and continued to move and idle. There were no warning indicators illuminated. The vehicle was towed to an independent mechanic who stated that the brake sensors and throttle body needed to be replaced. The vehicle was repaired. The local dealer was not contacted. The manufacturer was contacted and provided case number: 16052684. The contact requested reimbursement, but was denied. The failure mileage was 35,137.

- Stone Mountain, GA, USA

My vehicle makes a clunking noise when I make a turn and accelerate simultaneously, napelton Hyundai told me it was my axel and my front brakes grind when my car settles after I brake or when I ease off the brake

- Naperville, IL, USA

Bsd issue light is on, traction control light, ABS light. Dealer said right rear hub sensor was faulty. Had this replaced and didn't fix problem. Was charged $136 just to diagnose issue but changing the righty rear sensor hub didn't fix anything. Dealer says next repairs will be almost $500. Issues with warning lights happened during normal weather and driving conditions.

- Norco, LA, USA

The contact owns a 2015 Hyundai Sonata. The contact heard an abnormal noise when the brake pedal was depressed. There was no warning indicator illuminated. When the brake pedal was released, the noise stopped. Crestmont Hyundai (2961 center rd, brunswick, oh 44212, (330) 225-0011) was notified of the failure and indicated that the repair was not covered by a warranty. The dealer did not mention NHTSA campaign number: 14V368000 (service brakes, hydraulic). The dealer indicated that a follow- up response would be provided pertaining to the vehicle being serviced. The manufacturer was notified of the failure and was to respond to the dealer and the contact with a technical response. The approximate failure mileage was 17,500.

- Brunswick, OH, USA

Poor braking performance. Brake pedal has excessive travel and does not want to engage front brakes unless pressed hard or pumped up.

- Ravanna, OH, USA

Vehicle was stationary when problem first occured and when I applied my foot on the foot emergency parking brake the brake light does not illuminate on the dashboard. The light flickers occasionally or does not come on at all.

- Imperial Beach, CA, USA

This car has received regular oil change including filter changes and the engine has been flushed twice because each time the oil change miles have occurred the oil in the engine appears to be muddy. This car is only being driven to and from local city limits and only has 65,000. The car started braking down slowly with no explanation. 1st battery died constantly we put in a new battery, then the starter failed we replaced with brand new starter now the engine is completely gone. All in a matter of one month. Based on all the 1,000 complaints I have read on this particular car, all have experienced the same thing. Please this needs to be investigated

- Philadelphia, PA, USA