2019 Hyundai Sonata

My car's engine is burning oil. I have maintained service of oil changes and fluids, etc. since I purchased my car. It is not that old in my opinion.

The contact owns a 2019 Hyundai Sonata. The contact stated that while driving 55 MPH, the check engine warning light illuminated, and the vehicle went into LIMP Mode. The contact stated that the vehicle failed to accelerate above 58 MPH. The contact retrieved DTC: P1326 (Knock Sensor Detection System) at O'Reilly Auto Parts and stated that the knock sensor had previously been replaced. The failure mileage was approximately 90,000.

The low-pressure fuel pump module assembly, located directly beneath the rear passenger seat cushion, experienced a plastic housing failure. A stress fracture on the upper plastic fuel outlet nipple caused raw liquid gasoline to actively weep and pool on top of the module inside the passenger cabin. This component is retained and available for inspection upon request. RISK TO SAFETY: Raw liquid gasoline pooling inside the interior passenger compartment creates an severe, immediate fire and explosion hazard. Additionally, vehicle occupants were exposed to toxic fuel vapors while driving. INSPECTION & DEALER CONFIRMATION: An authorized Hyundai dealership inspected the vehicle and confirmed raw fuel leaking at the top of the fuel pump module assembly. This exact module had previously been removed and disassembled during a 2024 manufacturer recall service to replace the internal fuel filter and tank seal. Stress applied to the plastic fittings during that recall service appears to have caused the plastic top-hat to fracture over time under line pressure. Hyundai Corporate was notified of the safety hazard and prior recall history, but refused assistance. WARNING SYMPTOMS: The failure began with a strong, persistent fuel odor inside the vehicle cabin. No dashboard warning lights, check engine lights, or diagnostic trouble codes (DTCs) triggered prior to or during the failure. SUMMARY: A stress-fractured plastic fuel pump housing allowed raw fuel to pool in the passenger cabin foll

The oil is low, went to get looked at by another mechanic besides Dealer cause they want to hit you over the head with prices. Was told car burning oil. Took to dealer for Oil Consumption Test. Had to pay for oil change. Came back a little before 1,000 miles and car failed. They charging me 900.00 for next step because I can’t find ALL the oil changes. I just don’t get it, if this is a known issue with this model engine why do I have to pay.

The contact owns a 2019 Hyundai Sonata. The contact stated that while driving at an undisclosed speed, the vehicle experienced severe overheating and excessive oil consumption. The contact also stated that there was a misfire in the engine even though the spark plugs and ignition coils were replaced. Due to the failure, the vehicle could not be driven with the air conditioning activated. Additionally, the engine was knocking and shaking abnormally, causing an oil leak and a smoke odor due to the oil burning. The vehicle was taken to a dealer, where an engine replacement was recommended. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 140,000.

On January 26, 2026, my 2019 Hyundai Sonata SEL suddenly became inoperable overnight. The vehicle had been operating normally with no warning signs—no check-engine or oil-pressure light, abnormal engine noise, overheating, loss of power, or other indication of an impending failure. The following morning, the engine would not start. The vehicle was towed to an independent mechanic on January 28, 2026, who determined that the engine was locked/seized. On February 11, 2026, it was towed to Wayne Hyundai for further diagnosis. The vehicle had only 51,533 miles and had received Hyundai’s Knock Sensor Detection System (KSDS) update. Hyundai denied warranty coverage, citing engine sludge, despite my providing a complete service history after resubmiting the missing receipts I had previously misplaced. My primary concern is safety, not the warranty dispute. A sudden engine seizure without warning could cause an unexpected loss of propulsion or create a dangerous situation if the engine fails while the vehicle is being driven. This concerns me because Hyundai Theta II engines have previously been associated with engine seizure and stalling, including issues addressed through The Hyundai Theta II Engine Settlement: and subsequent litigation involving certain 2019 Sonata vehicles. I respectfully request that NHTSA investigate whether a continuing or insufficiently addressed engine defect exists in affected 2019 Hyundai Sonata vehicles, particularly sudden engine seizure/no-start failure

Vehicle stalled in traffic due to recall defect. Manufacturer recall remedy is delayed beyond reasonable timeframe, creating ongoing safety exposure.

The contact owns a 2019 Hyundai Sonata. The contact stated that while driving at an undisclosed speed, smoke started coming from the hood and the vehicle was pulled over into a parking space. While opening the hood, the contact saw that fire was coming from the top of the engine. The contact stated that the fire consumed the front of the vehicle, including the windshield and the dashboard. The smoke coming from the vehicle was dark gray and turned black afterwards. The contact called 911, and the Fire Department was able to extinguish the fire. There were no injuries reported. A vehicle parked next to the vehicle was damaged by the flames. The contact's vehicle was not inspected or officially deemed a total loss. The vehicle was towed to an independent mechanic where an oil change had been performed prior to the failure. The mechanic stated that there might have been a high-pressure fuel valve on top of the engine that possibly caused a gas leak, which started the fire. The vehicle was not diagnosed or repaired. The dealer was not contacted. The manufacturer was not made aware of the failure. The failure mileage was 172,000.

Driver's side seatbelt retraction mechanism failed without warning. Intentionally brought car to dealer ASAP since it was close to 100,000 miles pointed out. This was serious safety defect dealer refused to repair under warranty.

The air bag light suddenly illuminated when turning on my car. My car has around 60k miles. It was previously repaired a few times for a power steering faliure while driving making it hard to stear. I believe that this latest failure is due to a failure of the stearing wheel clock spring or another SRS module. failure.

2019 Hyundai Sonata Sport. (Original owner). Problem: Transmission. [XXX] (9,912 miles). Lack of power, vehicle did not move when trying to merge onto freeway. Very unsafe. Also, hesitation and jerking. [XXX] (10,619 miles). Lack of power, hesitation, jerking. Hyundai tech performed TSB, TCU updates, ECU update for knock sensor performance, reset engine & transmission updates. [XXX] (41,332 miles). Harsh shifts, hesitation, jerking, clunk sound, gear grabs, bursts of power, lack of power. Unsafe to drive. February 2, 2026 (41,751 miles). Hyundai tech found leak at case seal. Hyundai replaced transmission. [XXX] rough start, vibration in pedals. March 9, 2026 Hyundai tech found transmission fluid leak at case seal. Hyundai replaced transmission. March 25, 2026 Hyundai service advisor voicemail said, have to submit to Hyundai another transmission replacement because new transmission is not good. Issues shifting in reverse, hard slams, loses gears. [XXX] picked up vehicle from Hyundai service dept. Harsh shifting, hesitation, jerking, clunk sound, gear grabs, bursts of power. Clunk sound in steering wheel when turned back-and-forth. Front end vibration & wobbly. Vehicle unsafe. May 26, 2026. I notified Hyundai Motor America. Case #[XXX]. June 10, 2026 (43,000 miles). Hyundai service dept. informed me of right and left front axle replacement, universal steering joint replacement. Vehicle unsafe. [XXX] (43,000 miles). Test drove car with Hyundai tech. Verified front end vibration

The engine is the component or system failed or malfunctioned, and it is available for inspection upon request. Sudden loss of engine power while driving, including during highway speeds or intersections, increasing the risk of a crash. Engine stalling or failure to accelerate, preventing me from safely maneuvering away from hazards. Overheating events, which resulted in complete engine seizure and an unexpected loss of vehicle control, all which can potentially causing catastrophic incident without warning. To include, the increased risk of collision, especially if the failure occurs during traffic, merging, passing, or emergency situations. It has been reported to CC Transmission Auto Repair and independent service center. It was previously inspected by Hyundai dealer. Check engine light present September 2025.

After the car is driven for a while in warm weather, the steering can feel sticky after doing a slight turn doing more than 30 MPH. It takes extra force to return the steering wheel to the straight/neutral position. It acts as though the steering wheel is stuck in this slight turn position. The problem is intermittent but does create a safety hazard with the risk of the car being unable to easily remain in its correct lane position. Symptom summary: Intermittent; Worse in warm weather; happens after small steering inputs; Feels like the wheel is “hung up”.

For the past several years, this vehicle has experienced a recurring and unresolved engine malfunction that creates a safety hazard. The problem manifests as follows: Symptoms when check engine light illuminates: • Idle RPM elevation to approximately 1500 RPM (normal idle: 800 RPM) • Sudden unintended forward acceleration when foot is removed from brake pedal • Significantly reduced acceleration performance during normal driving • Vehicle becomes difficult to control safely The malfunction occurs intermittently but follows a consistent pattern. This is not an isolated incident but a recurring defect that has persisted for years. Multiple diagnostic and repair attempts have been unsuccessful: • Coconut Creek Hyundai service center - unable to diagnose [DATE(S)] • Independent mechanics - unable to resolve [DATE(S)] • Issue remains unresolved despite multiple service visits Despite multiple attempts by qualified technicians, the root cause has not been identified and the defect has not been corrected. This malfunction creates a significant safety hazard: • Unintended acceleration increases risk of collision • Reduced acceleration capability limits ability to merge or accelerate safely • Check engine light indicates undiagnosed system failure • Problem is intermittent and unpredictable, making it unsafe to drive I am concerned this may represent a defect pattern affecting multiple 2019 Sonata vehicles. NHTSA should: 1. Investigate whether this represents a defect pattern in 2019

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)

Automatic Emergency Braking Blind Spot Warning/Blind Spot Detection Forward Collision Warning Antilock Brake System/ABS Lane Departure Warning Lane keeping Assistance I bought this vehicle last month from a dealer and two days later all the warning lights start popping up on the dashboard so I contacted the dealer and told them what was going on with the car they told me to bring it in so that the technician can check to see what’s wrong with it they told me that there’s nothing wrong with the vehicle so I went back home and the same day all the warning lights came back on so now I’m concerned about my daughter’s safety because she use the vehicle to drive to and from school and you never know when the brakes might fail, again I just bought this vehicle a month ago just one month not even a year and it’s having all this problem even though it’s a pre-owned vehicle I shouldn’t have to take it to the shop after one month please help… thank you

I wanted to report the failure of my rear camera and/or the electrical circuit that is tied to it. It's my understanding that Hyundai has issued multiple recalls across different years/vehicles for issues in this area. My 2019 Sonata is NOT included in those current recalls. I was without my vehicle for a week and was charged over $1600 to repair. The issue was diagnosed and repaired by an independent mechanic. When they system failed numerous error lights/warning went off and continued to cycle thru (plus beeping). I wanted to report this in hopes of continued pressure on Hyundai to add this model/year to their recalls.

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.

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

I respectfully submit the following additional information.In connection with this matter, the dealer in question asserted in writing that I "should have refused to participate" in the manufacturer-authorized "Z05 Service Campaign"—a measure designed to prevent potential damage—and characterized the program as nothing more than "free paint work." Service campaigns administered by manufacturers are conducted within the framework of federal safety regulations pursuant to Title 49, Chapter 301 of the U.S. Code; they are neither optional nor merely cosmetic in nature. Rather, they constitute systematic procedures intended to preserve vehicle integrity and support public safety. Statements suggesting that consumers should decline participation in such campaigns—or that they may bear financial responsibility for damage incurred during their execution—raise concerns regarding how these federally supervised programs are communicated and implemented and may discourage participation and undermine public confidence in the national vehicle safety campaign system. Although the dealership subsequently offered to replace the windshield at no cost, I have not received confirmation that the repair has been completed. This offer was made only after the vehicle remained at the facility for an extended period, during which I was repeatedly placed under pressure to assume financial responsibility for damage that occurred while the vehicle was under dealership custody. I was presented with two con

Safety Concern — Damage to Windshield During Manufacturer Recall Repair (Z05) My vehicle was brought to an authorized Hyundai dealership on January 14, 2026 for a manufacturer-directed paint recall repair (Campaign Z05), which required removal and reinstallation of the windshield as part of the procedure. The repair was originally expected to be completed between January 14 and January 28, 2026. However, I received no explanation for the delay during that period. On February 13, 2026 — nearly one month after check-in — I was informed for the first time that the windshield had cracked during the reinstallation process while the vehicle was in the dealership’s custody. As of March 18, 2026, the windshield has not been replaced, and the vehicle remains at the dealership without this safety-critical component restored. Because the windshield is a structural element essential to roof strength, airbag deployment performance, and overall crash integrity, the prolonged failure to properly restore it raises serious safety concerns. The unresolved condition of this component creates uncertainty regarding the vehicle’s crashworthiness and may expose occupants to significant risk of injury in the event of a collision. Damage occurred during a manufacturer-mandated recall repair while the vehicle was under the exclusive control of an authorized service provider, and the vehicle has not been returned to a safe, operable condition for an extended period. This situation raises broader concer

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.

Steering will stay stuck in left or right position when turned slightly, a couple of inches. The wheel has to be jerked back to center. Vehicle will not go back to center. No lane assist of any kind are on. Excessive tire wear. Consistent issue especially when it’s hot weather. Steering wheel tilts to left when brought to centerz Cannot be reset to stay centered. Dead spot in steering.

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.

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.

See attached document for complaint.

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

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.

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.

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.

Factory paint on my 2019 Hyundai Sonata (white Z05 warranty) is peeling on metal panels. Hyundai acknowledges paint failure under the Z05 warranty extension and directed me to authorized repair shops. When I contacted these Hyundai-referred shops, they stated they do not blend horizontal panels such as hood/roof/deck lid and would instead tint or use trim to disguise color differences. Hyundai corporate confirmed in writing that tinting alone does not meet Hyundai OEM repair standards, and that blending should be used when needed for proper color matching. Independent body shops also confirmed blending is required for a proper repair, with documented estimates ranging from $3,064 to $10,378.92 for OEM-level refinishing. Being offered tint-only/spot repairs without blending leaves exposed primer and will lead to corrosion and metal degradation over time. This raises a potential safety concern due to loss of corrosion protection on structural panels. Documentation from Hyundai corporate, repair quotes, and shop responses are available upon request.

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.

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.

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

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

Burning oil

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.

Burning excess oil

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.

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

I took my car to the garage after purchase around 75,000 miles due to rattling noise 8n the front and the amount of oil that my car was requiring in between oil changes, did the oil consumption test it came back on the higher range but Hyundai offered no resolution

Burning oil four quarts in between normal oil changes

I am writing to file a formal complaint against Hyundai Motor America and the Freehold Hyundai dealership located in New Jersey, regarding the ongoing engine oil consumption issues in my Hyundai Sonata. I purchased a 2019 Hyundai Sonata and its now 90,000 miles, I began noticing extreme oil loss, far more than a quart per thousand miles, with no visible leaks, no smoke, and no warning lights. I brought the vehicle to Freehold Hyundai for an evaluation, and they performed an oil consumption test, confirming the issue. They submitted a goodwill repair request to Hyundai Corporate, which was denied solely on the basis that I am the second owner, and the powertrain warranty does not transfer. The dealership offered a $200 PCV valve replacement (a part that costs $6–$20), but even their staff said it likely won’t resolve the issue. Their proposed solution is a full engine replacement costing $8,000 or more, which I cannot afford. I believe this is part of a broader manufacturing defect, and Hyundai should take accountability for the engine failure, especially considering similar complaints from Sonata and Elantra owners nationwide. TSBs (Technical Service Bulletins) have been issued on related issues. A car engine should not fail before 100,000 miles under normal use, regardless of ownership transfer. This issue has been the subject of TSB 20-01-004H, which addresses excessive oil consumption due to piston ring Hyundai’s refusal to provide any real assistance or remedy — and the d

The contact owns a 2019 Hyundai Sonata. The contact stated that within the 4-5 months of vehicle ownership, the vehicle experienced excessive oil consumption. The contact stated that oil had been added to the vehicle approximately 8-9 times and an oil change had been completed twice. The contact stated while driving at various speeds, there was an abnormal rattling sound coming from the front of the vehicle. The check engine warning light was illuminated intermittently. The vehicle was taken to the dealer to be diagnosed, but the cause of the failure could not be determined. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 81,000.

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

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.

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.