The engine stalls out randomly. This is the third time it's done it. The first time was while I was exiting the freeway on March of 2021, which I thought was a fluke. The second time was July 19th and the third time was July 30th. There were NO warning lights or messages. Took it to the dealer and they said that everything came back fine with the engine. They confirmed that the RPMs were too high when it was in a parked position and the engine was on when they first took it in. They suggested I replace the starter. I'm going to a different mechanic for a second opinion. The car was in motion with my foot on the gas pedal when it started to stall. There is no way that it is from a starter.

- Cypress, CA, USA

Engine burns 2 quarts of oil a week. Took it in for oil consumption tests and Hyundai figures out ways to not replace these faulty GDI Engines. Also car has a strong gas smell inside car. Maybe gas leaking. Airbag warning light has been on for years. Took it to the dealer in the past they said it's ok(Hub Hyundai Katy TX) but I don't feel confident.

- Katy, TX, USA

Engine had a leak and shaves of the engine were inside the oil line. Had to get engine replaced.

- Edinburg, TX, USA

The contact's husband owns a 2015 Hyundai Sonata. The contact stated that while her husband was driving at an undisclosed speed, the vehicle lost motive power. The vehicle was towed to the residence, where it was diagnosed by an independent mechanic with engine failure. The mechanic informed the contact that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 100,000.

- Opelousas, LA, USA

Multiple times, when the car start up and is put in to reverse, there is no throttle response. Simultaneously, it can not be put into the manual gear select mode and the car lurches into second gear.

- Germantown, MD, USA

Driving at 55 and the engine blew. No warning, no check engine light, no sign of anything wrong. Power steering loss, limo mode activation. Almost rear ended during catastrophic failure. 111,000 miles

- Vero Beach , FL, USA

The vehicle is slow to accelerate and as its accelerating it often will jerk or hesitate roughly. There have also been times when accelerating, such as getting on a highway, that the whole (what I assume to be) throttle system will almost stop and it feels like the car is just going to stop right there on the highway. It's very dangerous as cars behind me are also accelerating and not expecting my vehicle to just stop. The vehicle is available for inspection. There are no warning lights, messages, or symptoms prior to the issue. It has not been inspected by anyone yet.

- Fort Wayne, IN, USA

Vehicle suddenly lost power while in operation. Vehicle was in motion approaching an intersection. When left turn indicator was activated, all lights on the instrument panel illuminated, the engine shut off, and power steering was lost all while the Vehicle was in motion approaching a intersection with stop sign. Vehicle was able to stop before entering the intersection, but would not start again and we were stranded in the middle of the road. Electrical systems appeared to be working. Battery and alternator are functioning normally. After Vehicle sat for 20min, it then was able to start and moved out of the road to a safe location. Vehicle was towed to mechanic that confirmed Battery health and alternator functioning. Vehicle was then taken to dealership for recall 210 safety repair. Dealership service unable to determine cause for loss of power while Vehicle in operation. No explanation, offer of additional service, or remedy has been offered despite requests. I do not feel it is safe to operate this vehicle in the absence of information related to the sudden loss of power during normal operation. Had this occurred in another setting with more traffic or less room for safely coasting to a stop, serious injury or worse could have resulted. The vehicle is still eligible for the 10yr 100k mile powertrain warranty and I am the original owner. We do not feel we can safely operate this vehicle and need guidance on how to proceed with pursuing a remedy to the situation from the vehicle manufacturer.

- Burlington, NC, USA

My ABS lights came on and then minutes later my check engine light kept blinking while my car kept stalling or not let me accelerate in the middle of traffic. It-??s like the engine dies but the car is on. It only stalls for a second then accelerates then stalls again and accelerates. Almost caused an accident. Seems that this is a problem for a lot of these models. It-??s just crazy how it all happened back to back. My car has been running fine otherwise till that happened.

- Hinesville , GA, USA

The contact owns a 2015 Hyundai Sonata. The contact stated while driving at an undisclosed speed, there was a knocking sound coming from the engine. The vehicle was taken to an independent mechanic and an engine oil change was performed. After retrieving the vehicle, while driving at an undisclosed speed, the engine was sputtering and the vehicle was hesitating while driving; the vehicle later stalled driving. The vehicle was towed to the local dealer who diagnosed that the engine had failed and needed to be replaced. The vehicle was not yet repaired. The manufacturer was notified of the failure but no assistance was offered. The failure mileage was 75,600.

- Niagara Falls, NY, USA

My Car is burning engine oil at in alarming rate. I put 5 quarts of oil in and my check engine light began to blink and my car would accelerate more pass 50 mph. So in 6 days and 578 miles; my car had less than a half of a quart of oil in it. My car is having engine trouble. [XXX] INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).

- Rex, GA, USA

While driving on the freeway the engine began loosing power and there is a knocking sound. My daughter was almost rear ended trying to get off the freeway. The vehicle was inspected by an independent mechanic and i was told the rod bearings are bad and the engine needs to be replaced. The vehicle has regular oil changes and does not consume a lot of oil. No warning lights came on. The dealership refuses to inspect the vehicle because it has a salvaged title. The failure happened at 108k miles.

- Palmdale, CA, USA

Engine had knocking then completely froze while driving due to low oil pressure. Car has been well maintained, regular oil changes and just had axle repaired. Hyundai has extended warranty to cover this issue that is common on these vehicles and should cover the cost of the new motor. Consumer spoke with Hyundai corporate and the case number is [XXX]. Although they are well aware of cars catching fire and are even part of a major litigation lawsuit for this same situation consumer is getting nowhere with them. Consumer's daughter could have been seriously hurt in this incident. INFORMATION Redacted PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6).-??

- Ridgeway, VA, USA

Faulty motor. No warning lamps or any other symptoms prior motor failure. At 123,310 miles motor spun lower camshaft bearing cause motor to lock up on a busy highway. Same as the 2013's & 2014's.

- Worthington, IN, USA

The contact owns a 2015 Hyundai Sonata. The contact stated while driving at an undisclosed speed, the vehicle hesitated during acceleration and lost motive power with several unknown warning lights illuminated. The vehicle was towed to the dealer where it was diagnosed with engine failure. The dealer informed the contact that the engine needed to be replaced; however, the dealer declined the engine replacement due to the previous owner's failure to have the Manufacturer Service Campaign Number: 953 (ECM & Cluster Update - Engine Monitoring Logic Product Improvement) performed prior to the failure. The vehicle was not repaired and remained at the dealer. The manufacturer was not made aware of the failure. The failure mileage was 124,803.

- Durham, NC, USA

The car keeps throwing a code and going into limp mode. For the knock sensor. It was replaced less than a year ago and it is now throwing the same code. And once again in limp mode. The first time this happened was around 10/15/2021, &now today 6/17/2022

- Enid, OK, USA

The contact owns a 2015 Hyundai Sonata. The contact stated while driving 65 MPH, the vehicle began to shake and then stalled without warning. Due to the failure, the vehicle was towed to a dealer where the mechanic discovered that the spark plugs had disintegrated causing the piston rings to be damaged. The vehicle was diagnosed with engine failure. The manufacturer had yet to be notified of the failure. The vehicle was not repaired. The failure mileage was approximately 162,000.

- Meeker, OK, USA

1/2022. My vehicle start leaking oil. Vehicle was under warranty. Had multiple things replaced. I thought oil leak was fixed. Not even a month later in 2/2022, the vehicle was leaking oil again. Brought it back to dealer & they redid gaskets, seals, etc. Now on 4/22/22, I have not even put 3000 miles on the vehicle since it was at the dealership & there was a knocking noise coming from under my hood. Called the dealership and they said I needed to get it back to them. Oil consumption test was never done because it was assumed that my oil was low because it was leaking. Both times oil was put in my vehicle. On 4/28/22, I was at work and went outside to check my oil and there was little to no oil on the stick. I immediately added 5 quarts of oil which is required for my vehicle. The knocking did not stop. I left work to run a brief errand on 4/29/22, and had just pulled out of work onto a very busy four-lane highway. All of a sudden I hear this big boom under my hood, my car locks up and my oil light comes on. I immediately took my foot off of the gas and coasted into the next driveway at a business. There was oil all over the road and pouring out from under my car. It happened to be an auto parts store. A mechanic came outside and looked and said a rod went through my engine block & oil was pouring out of my car. I started to have an anxiety attack and went into shock. Luckily I was not on the interstate because it could have been very bad. I am now without a car. None of the rental car places have any vehicles available and I have a full-time job & am a single mom with 2 kids. The dealership was nice enough to have my car towed to them 45 minutes away. They then told me about an oil consumption problem with Hyundai and there is a big class action lawsuit. This should have never happened. Apparently the oil consumption was never sent out as a recall or anything else so I was unaware of it to even know to check my car other than regular oil changes.

- Denham Springs, LA, USA

Was driving with cruise control on and driving close to 70mph and the RPMs shot up passed 5 then the car jerked and my speed had went from 70 down to 50 and 40 the cruise controle turned off on its own and the car lost power but was still on but it just wouldn't drive passed 2 rpms and the check engine light was flashing so I turned around and headed the opposite direction so I could get the car off the road then it made this loud noise sounded like throwing metal inside a metal bladed fan and then the car shut off and hasn't started since. The car did not over heat or have any smoke coming from it.

- Portsmouth, OH, USA

I had closed from work one morning and was headed home. Just a few seconds after taking off, my engine completely shut down. Thank goodness I wasn't in on a highway or at a heavy traffic area. I managed to park my car by the road side & tried to restart my engine, but the car wouldn't start. I towed the car to the nearest mechanic, only to hear that my engine is done & needs replacement. I've constantly kept up with frequent oil changes & always used synthetic oil. Current odometer reading is 153k & I believe the car still has the potential to stay on the road a longer time if the engine is taken care of. I've reported the issue to my nearest Hyundai dealership & they've asked me to tow it to them, but they can't promise that they'll take care of the problem. Worst of all, that's the only car I have & I'm still making payment on the car.

- Parlin, NJ, USA