general problems of the 2019 Hyundai Sonata - part 1

Ecm, p0303, yes, not yet, no, cel light before the car was brought to the dealership, 2019 Hyundai Sonata se, 2. 4l theta ii gdi. Perryville Hyundai IL refused applicable TSB in writing 5/4/26 despite active p0303 misfire, fuel-in-oil smell, crankcase pressure. I have photos prove falsified multi-point inspection: 1. 0 inch (. 0833') wheel well discrepancy, same mileage in/out. Vehicle has stall risk. Case manager [xxx] non-responsive 2hr 45min after requesting written tow instructions on safety matter. Rspm escalated 1:00 pm cdt 5/5/26 with 3:00 pm deadline. No contact received as of 3:03 pm. Vehicle unsafe to drive. Theta ii lifetime warranty settlement violation. Case #xxx. Requesting federal investigation. Photo upload is not working, I'll need a email to send them in apparently information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

On April 14, 2026, my 2019 Hyundai Sonata was parked at a retail store parking lot. Returning from the store, I attempted to start the car, and it did not start. I attempted to start it again, and I saw smoke coming out from under the hood. I immediately exited the vehicle and opened the hood. I saw open flames coming out of the engine area, about 4” high. I called 911 and waited about 10 minutes for the fire department to arrive. During this time, the flames engulfed the entire engine compartment and extended vertically above the hood height. The hood eventually melted and fell back onto the engine area. The fire department came and put out the fire. The car is totaled. There were no injuries, thank god!.

My 2019 Hyundai Sonata has been experiencing excessive oil consumption since I purchased it. The vehicle requires oil to be added approximately every two weeks, which indicates a serious internal engine issue. Recently, the check engine light turned on, and I took the vehicle to a dealership for inspection. I was told that the engine is “operating normally,” despite the ongoing oil consumption problem. I was also informed that the engine would only be replaced under warranty if it fails completely, such as through connecting rod bearing damage. This means I am expected to continue driving a vehicle that may suddenly fail without warning. I drive daily with my children, and I am concerned about the risk of sudden engine failure, loss of power, or engine seizure while driving, which could lead to a serious accident. I believe this is a known issue with these engines, and it represents a significant safety hazard that should be addressed before a catastrophic failure occurs.

I was driving on the interstate when my engine started shutting down on me and I’m glad I had moved to the right lane because someone would’ve hit me from the back because I never had this problem and now the mechanic telling me it jumped timing.

Consuming oil a quart every 2-3 weeks Sonata Hyundai in 2000 miles 3 quarts of oil were used. What happens when the motor locks up from be extremely low on oil. Possible accident! I cannot expect my wife to be checking the oil level every time she drives.

Steering wheel panel glued/tampered (safety hazard) motor/pump assembly broken. Recall couldn't be done due to tampered parts.

My oil pan cracked. I’ve never had any issues with oil pans until this one. Hyundai will not replace this under warranty.

Hyundai replaced my engine under warranty due to their oil consumption in mid October. About 2 weeks later all warning lights came on and they said need new battery. They put in new battery in November. 15 miles after new battery a burning smell and smoke came from under hood with visible smoke. Took to dealer following day and no smoke. Got car back and next day it’s smoking and burning smell. Got it back to dealership and they had it a while and said no smoke and I got car back. They can’t find a reason and it’s not smoking . About a week later (tonight) burning smell and smoke from under hood at the engine.

The engine is burning oil around 1 quart every 700 miles. I check the car oil level around every 10 days. I have experienced when I didn't check the oil and the low oil engine light would come on in the instrument panel. Hyundai shows no recall for this 2019 Hyundai Sonata limited edition. I believe that this type of incident occurred back around 2011 with Hyundai's models for that time.

Engine is burning oil at an excessive rate. Burning a liter every 1,000 miles and Hyundai refuses to do anything about it.

The contact's mother-in-law owns a 2019 Hyundai Sonata. The contact stated that while driving at an undisclosed speed, the vehicle started shuddering. There was no warning light illuminated. Minutes later, the failure reoccurred with the messages "check hybrid system” and “turn engine off" being displayed. The contact immediately pulled over and had the vehicle towed to a dealer for assistance. A diagnostic test was performed, and it was determined that there was engine failure and that the engine needed to be replaced. The dealer requested proof of the last two oil changes. The contact obtained a carfax report, which showed proof of the oil changes and maintenance records. The manufacturer denied the goodwill request after several months of negotiations. The vehicle remained with the dealer unrepaired. The failure mileage was approximately 32,000.

My oil light came on after driving it about 4700 miles from purchase date. I checked the oil and there was no oil on the dipstick. 200 miles and 2 days later the check engine light came on and put it into limp mode. It was about a half quart low. I was put at risk for having to go slow on a main highway to get back home. I took it to a local Hyundai dealership they did a diagnostic and bearing clearance test for $572. 00. They said it passed. Then I did a 1000 mile oil consumption test. They over filled my oil and it passed. The 2nd 1000 mile oil consumption test they did not over fill my oil and it failed. They told me they would submit a PA to Hyundai corporate and as long as the maintenance was done they would most likely replace the engine. He also told me my engine could blow anytime. They never called me back so when I called the dealership they said they denied it needed a new engine. They wanted me to pay another $800 to run a combustion test. I am not paying for anymore testing when they clearly have engine problems with many of their engines. I had warning signs and that’s when I called the dealership I purchased it from and went on this path. I was also told that this was covered under an extension warranty of 120, 000 miles. Only to be told by Hyundai corporate that it is not covered. This is an issue Hyundai is well aware of and they refuse to fix it.

My car has been with priority Hyundai in chesapeake va since September 23rd. They have advised me that I will definitely need a new engine however, Hyundai is requiring them to do 2750. 00 worth of work on my engine before they can submit a claim to have my engine replaced. They explained to me that one of the piston rings in my engine needs to be replaced. The service technician reassured me “the failure was nothing that I could have caused”. I have gotten my oil change regularly, and I have paperwork that shows that. The car is five years old. I’ve only had the car for 3 years and I’m the first owner. I have never driven my car long distance. I work from home. The most I do is take my boys to and from school which is at the most 5. 1 miles away from my home. The dealer recommended that I call Hyundai my self and start a case. Which I did. Two days later Hyundai canada called to tell me their decision is final and my case was denied because the warrant is 5 years/60,000 miles I told them the car was over the 60,000 mileages when I bought it and I’m still well within the 5-yr mark. She then says, basically that the piston failure is not included in the extended warranty. However the class action suit states differently. The dealership advised me that their system shows a 99 yr warranty on the engine, which they took that to mean lifetime. They priced me a new engine at 7111. 00 in addition to the 2750. 00 of engine work they told me I must get done before Hyundai would approve me for a new engine. I have been in contact with the lawyers handling the Hyundai/kia 2. 0l and 2. 4l theta ii gdi engine class actions. They have added me to the data base and provided me some direction. Which have led me to you, the NHTSA.

Problem with the valve cover gasket. Dealer said replaced. Engine oil smell has been entering into the cabin and making me ill. Causing chest pain, headache, dizziness, nausea.

Excessive oil consumption leading to no or low oil levels. Piston ring design flaw allowing oil to leak into combustion chamber, damaging the spark plugs. No warning lights until failure posing a significant crash risk for my family. Engine failure at 134k miles without warning, rings need replaced, per mechanic. I am shocked as I just paid the car off and thought Hyundai was a good brand.

I just had an oil change twice on this car it burns oil like crazy. . Mine you only had car for5 months.

My vehicle has an oil consumption problem. I put in 5 quarts of oil last week after changing the oil three weeks before this. I am down today December 19, 2025 2 1/2 quarts when I put in 5 quarts last Friday. Hyundai motor corp. Says I have to pay for the $90 oil change to do the oil consumption test then I have to go back 1000 miles later and pay $600 for an oil combustion cleaning and drive it another thousand miles and come back and see the oil level to see if I need an engine. I think this is absolutely a safety hazard and needs to be taken very seriously for all customers that drive a Hyundai that are having these issues.

Burning oil.

I have had my car in 7 times for the same issue. Metal shavings in oil and burning excessive amounts of oil between oil changes. This is a very well known issue with 2019 Hyundai Sonata. They have done nothing but add oil and run tests which the car failed. No attempt to fix it or replace it. I have been in contact with corporate who refused to help. My car has an extended warranty for this specific issue, but they only give me the run around.

Purchased 2019 after 44,000 miles engine was replaced metal in engine and inverter coolant issue July 2025 117,000 my inverter coolant light came in and off several times then car through all warning lights hev check engine warning shut it down went into limp mode towed to dealership they checked and cleared codes said it threw 13 codes but after clearing they stated nothing wrong with it as they went to pull car around it happened again this time code was knock sensor which they relaxed at no charge extended warranty they next day after picking up while at idle hev warning went in shut car off and it was gone kept driving nonissues the next day again it happened and this time the engine light stayed on spoke with dealership they said they would charge me diagnosis charge of 208 and if it was related to what they did. It would be covered also stated if the engine light was flashing it would be covered or it isn’t the engine isn’t covered the inverter coolant is not bubbling or moving when car is on it is an inverter coolant issue that was a problem back when my first engine was repaired and should be covered I love my vehicle but I have had so many issues since getting it major things and the lighting system showing a black spot in my view as well that could not be fixed I will attach pictures of earning lights and video of coolant not circulating and the dealership filled the coolant way over the top I have to now take it back again to have it looked at.

Is anything being done about the known oil consumption issues with the 2019 Sonatas? my daughter bought the car used -- it currently has 70,000 -- but Hyundai won't do anything because she is the second owner and those cars don't get 100,000 protection, they only get 60,000. It just doesn't seem right.

I have had issues with oil consumption in this vehicle for about 2 years. I have taken it to the dealership vandergriff Hyundai in arlington, TX advising the oil light keeps coming on before oil change is due this was before my warranty had expired on my vehicle. I was told that they could not find anything wrong and a oil change was completed, but no oil consumption test was done. I asked about any recall for knock sensor and I was advised that had already been completed. I have no proof of this being completed. After researching the issue, I discovered that this is a known engine defect covered under Hyundai technical service bulletin 23-em-008h, which relates to excessive oil consumption. This condition can lead to engine failure, posing a significant safety risk if the engine fails while driving at high speeds or in traffic. This issue is part of an active class-action lawsuit and has affected numerous vehicles with the same engine type. I had my oil changed on April 26th, 2025 and as of June 24, 2025 it was 3 quartz low. This is not normal and it is dangerous.

I am filing a formal safety complaint regarding excessive engine oil consumption in my 2019 Hyundai Sonata. The vehicle, with approximately 90,000 miles, experienced a complete loss of engine oil without any visible leaks. The low oil warning light appeared intermittently and ultimately revealed the oil level had dropped to zero, posing a severe risk of engine seizure and potential accident. This issue appears to be consistent with known problems related to the 2. 4l gdi engines used in Hyundai vehicles from this period. Hyundai has issued TSB 20-01-002h, acknowledging excessive oil consumption in certain models. Yet, many affected vehicles, including mine, may fall outside warranty despite being within a reasonable usage period. I am requesting that NHTSA review the extent of this issue and consider whether a formal investigation, recall, or manufacturer enforcement action is appropriate. This engine defect presents a clear safety hazard, especially if failure occurs during highway driving. Thank you for your attention to this matter.

Car has 39,495 miles. First owner of vehicle. Have advised dealership since 2024 that there was a oil issue as I have only went to them for oil changes. I advised that as they can see the car is barely driven and the oil is disappearing. They claimed nothing was wrong and made me pay for a oil change again. Come this year, I advise again there is a issue, they tried to have me pay for a oil change again and I advised something else needs done. They argued I was not the first owner and the car was not in warranty however I bought the car from their lot and I am the original owner. Then they stated I had to pay for another oil change for the oil consumption. Then they claimed they would just do the oil consumption and then to drive 1,000 miles and bring it back. After the oil consumption engine light is on. I drove 1,000 miles, brought it back and the engine failed the test. The dealership changed the engine. 5 days later engine light is on, car is stalling and brake locked up, then car would not start and was smoking under the hood. Car was then towed to the dealership. They claimed nothing is wrong and they reset the code for the engine light to go away. They stated evap code was on but was not persistent so it's fine. Few days later engine light comes on again and once the car has been running, you shut it off go to start it again it won't start unless you have it sit for a while. I take it back to the dealership they point next to the engine saying a purge valve, but the wants money for a diagnostic. They do the diagnostic and still provide maybes, as they claim the filler neck is rusted and corrosion. I take the car to another place who states the filler neck is fine.

Rod clearance test.

Bought 2019 at priority Hyundai in chesapeake va in June of 2022. Noticed that car stay burning oil in March of 2025. Took 2 oil consumption test at dealership and failed both. Hyundai knows these consume oil even with proper maintenance but will do nothing to try to make it right. Basically got turned down and service advisor advised me to buy a new vehicle. The car only has 75,330 miles on it.

The car stalled and came to a stop on the highway which was very dangerous. Took it to mechanic and they found the cylinder 3 and 4 misfire and suggested we take it to Hyundai dealer for repair. Took it to Hyundai dealer and they did a compression test and found only 40% compression in cylinder 4. All cylinders should be around 180%. Engine needs to be replaced and Hyundai refuses to help.

Burning oil four quarts in between normal oil changes.

Car drinks oil and doesn’t make it to the next oil change.

The contact owns a 2019 Hyundai Sonata. The contact stated that they have only had the vehicle for approximately 4 to 5 months and had to add oil to the vehicle approximately 8 to 9 times, and had the oil changed twice. The vehicle would display issues with the oil within a week of having the oil change completed. When driving at various speeds, there would be a rattling noise coming noise coming from the front-end of the vehicle. The vehicle would run out, and the check engine warning light would temporarily illuminate. The vehicle was taken to the dealer, who was unable to diagnose the cause failure. The vehicle was not repaired. The manufacturer was not informed of the failure. The failure mileage was approximately 81,000.

I purchased a 2019 Hyundai Sonata se in December 2024. Within one month, the vehicle consumed 3. 5 quarts of oil out of a 5-quart capacity. After researching the issue, I discovered that this is a known engine defect covered under Hyundai technical service bulletin 23-em-008h, which relates to excessive oil consumption. This condition can lead to engine failure, posing a significant safety risk if the engine fails while driving at high speeds or in traffic. This issue is part of an active class-action lawsuit and has affected numerous vehicles with the same engine type. I am reporting this defect so that the NHTSA can track the scope of the problem and determine whether a recall should be issued.

The contact owns a 2019 Hyundai Sonata. The contact stated that the vehicle was consuming an excessive amount of engine oil. There was an abnormal knocking sound while depressing the accelerator pedal. The contact had to add oil to the engine after an oil change. The oil level had been low by one quart, three quarts, or even more on several occasions. There were no warning lights illuminated. The vehicle was taken to the local dealer, where it was diagnosed that there was oil leaking from the gaskets. There was an internal leak in the engine. The dealer informed the contact about an oil consumption test. The dealer informed the contact about the associated fees. The vehicle was not repaired. The manufacturer was not contacted. The failure mileage was approximately 89,000.

The contact owns a 2019 Hyundai Sonata. The contact stated that while driving at various speeds, there was a knocking sound coming from under the hood. The contact stated that the engine was consuming an excessive amount of engine oil. In addition, while attempting to drive, the vehicle failed to exceed 5 mph. The check engine warning light was illuminated. The vehicle was taken to a local dealer, where it was diagnosed with a blown piston and cylinder #2 failure. The vehicle was repaired; however, the failure reoccurred. The contact stated that while stopped at a stop sign, there was black smoke coming from under the hood, with an abnormal sound coming from the vehicle. The vehicle was taken to another local independent mechanic, where it was diagnosed, and determined that the catalytic converter needed to be replaced. The manufacturer was not made aware of the failure. The failure mileage was approximately 150,000.

Car started consuming large amount of oil at 80,000 miles, no leaks or drips under the car or on any of the under panels. I am adding a quart of oil every 1000 miles.

The contact owns a 2019 Hyundai Sonata. The contact stated that the vehicle was experiencing excessive oil consumption. The vehicle was taken for an oil change, and the contact was informed that the vehicle required an oil change every 10 days. Additionally, the contact stated that the vehicle was taken to the dealer after driving 1,000 miles after an oil change, and the dealer informed the contact that a combustion cleaning was needed. The dealer performed the combustion cleaning, but the failure persisted. The check engine warning light was illuminated. The contact stated that an independent mechanic and the dealer had diagnosed the vehicle and had determined that the catalytic converter needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure and declined to cover the cost of the repair. The failure mileage was unknown.