Other Fuel System Problems of Hyundai Sonata - part 1

At approximately 130,000 miles, vehicle developed and internal coolant leak caused by a failed exhaust heat recovery system (ehrs) in the center muffler assembly, matching TSB 23-em-009h - a known manufacturing defect documented by Hyundai. Coolant has been slowly leaking internally into the exhaust system. The authorized Hyundai dealership initially failed to diagnose the internal leak and told me there was no leak and wanted to send me home. After pushing back, the internal leak was confirmed. If not caught, this defect could result in engine overheating or complete engine failure without warning. Hyundai motor America has denied goodwill coverage despite this being a documented manufacturing defect.

See all problems of the 2021 Hyundai Sonata 🔎.

The vehicle’s fuel tank system failed catastrophically. The vehicle is currently grounded and has been inspected at the Hyundai dealership service center where it was towed. My safety and the safety of everyone on the road was put at extreme risk due to a severe fire and explosion hazard. Additionally, the defect caused the vehicle to suddenly lose power, sputter, and threaten to stall out while driving on a major interstate, creating an immediate risk of a high-speed rear-end collision. When attempting to add fuel, the pressurized tank forcefully spit gasoline back out of the filler neck, creating an active chemical and fire hazard at a public gas station. I was able to drive it home and called via Hyundai roadside assistance to have it towed to an authorized Hyundai dealership service department. On June 15th, 2026, the dealership service technicians officially confirmed the failure, stating that the fuel tank had expanded, the back floor base of the car was melting, and the vehicle was on the verge of exploding.

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I am submitting this complaint regarding a serious safety issue involving my Hyundai Sonata. While driving under normal conditions, my vehicle suddenly entered a low-power ("limp") mode without warning. The vehicle would not accelerate beyond approximately 30–35 mph, creating a potentially hazardous situation in traffic. At the same time, the check engine light began blinking. The sudden loss of power significantly reduced my ability to maintain traffic speed and safely maneuver the vehicle. This condition could have increased the risk of a rear-end collision or other accident. I brought the vehicle to an authorized Hyundai dealership (fred beans Honda of abington ph# 215-392-9020) for diagnosis. The dealership confirmed that the vehicle stored diagnostic trouble code (dtc) p1326, related to the knock sensor detection system (ksds). According to the dealership, the vehicle entered limp mode as a result of this fault. The abrupt reduction in vehicle power and speed occurred without sufficient warning and created a safety concern. I am reporting this incident so that NHTSA can investigate whether this condition represents a broader safety defect affecting Hyundai Sonata vehicles equipped with the ksds system. Vehicle information: make: Hyundai model: Sonata model year: 2014 I request that NHTSA review this issue and evaluate whether additional action is warranted regarding vehicles experiencing dtc p1326 and associated limp-mode operation.

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I went shopping notice needed gasoline filled the tank 3/4 the next day I smell gasoline on my2013 Sonata hybrid VIN [xxx] inside the car and I did not notice any light alerts etc. , just the smell of gasoline inside the car. I ask for a ride I was scare to drive to the dealer on Monday 5/6/26 around 12:30 pm I called the dealer I was gonna dropped the car they told me diagnostic would take 3 days , I was afraid to cut on fire since my gas left a big stain and was wet gasoline in the parking lot at work. , I called Hyundai USA mentioned the problem I notice there is a recall for gas pump leaking and causes gas tank to crack recall for 17v-226 for fuel pump leaking 0n Hyundai Sonatas hybrid 2011-2016 my car is in the Hyundai dealership [xxx] [xxx] they called me telling me my gas tank is cracked cost of repair labor 2800. 00 and 280. 00 diagnostic charge and is ready for pick in 30 min no recalls I must pay for this service information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

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Was driving and stopped at a stoplight. When I went to drive it started sputtering and if I wouldn’t have driven into a gas station, it would’ve given out in the middle of the road. It wouldn’t let me switch to drive or reverse , only neutral or park. It threw a code p0301, cylinder 1 misfire. Had to get it towed. Now I have to get my spark plugs and fuel injectors replaced.

See all problems of the 2023 Hyundai Sonata 🔎.

This is a well-known and widely reported issue: 2013 Hyundai Sonata hybrid car, which has recently experienced the following dashboard alert: "hybrid system warning! safely stop and do not drive. " when the car is pulled over and shut down and sits for roughly 10 minutes, it starts up just fine and runs again for an undetermined amount of time, and then the alert will go off unexpectedly. This has happened twice, once the car was driven about 4 miles, and the alert came on, and the second time the alert came on as the car was started for the first time of the day. The car repair shop indicates that there are no codes saved when this happens. This is apparently a documented issue, where the codes are not saved, and difficult to diagnose by repair shops and dealers. It could lead to the vehicle completely shutting down while driving at highway speeds within traffic, which could cause a serious accident involving multiple vehicles and people. Why is this not recalled by the dealer and fixed? this has been reviewed by the dealer and by an independent repair shop. Is the NHTSA waiting for the death count to require the manufacturer to address the issue?.

Hyundai motors America has failed to comply with its statutory obligations in conducting the recall campaign 25v796, and is instead engaging in behavior substantially similar to that which has been previously censured by NHTSA. My Sonata suffered irreparable damage related to this campaign as confirmed by hma. 49 u. S. C. § 30120(a)(1)(a) allows hma to choose one of three remedies: repair, replacement, or refund. However, they 1) say it cannot be safely repaired, 2) will not replace it, and 3) are not offering a repurchase as required by statute, I. E. "by refunding the purchase price, less a reasonable allowance for depreciation. " instead, Hyundai's case manager aditya informed me on 5/29/2026 at 12:57 pm that they will make a repurchase offer "based on the kelly blue book value. " I protested and cited the statute, but he maintained that Hyundai has their process and subsequently gave an unconscionably low offer that was not based on any reasonable measure of depreciation. I insisted on a reasonable, defensible calculation. I proposed 1) using the state formula for calculating reasonable depreciation as applied in both texas and California (hma and my home states), or 2) using actual market values (of which I have tangible data) to determine the actual market loss in value. Hyundai has rejected both of these reasonable proposals in favor of an arbitrary formula that would leave me with thousands of dollars in lost value. On June 9, 2026, when I pressed executive case manager jenifer for an explanation of their proposed depreciation formula, she only stated that "it’s a standard calculation across the board" and that it applies "regardless of state" and they "will not change it. " the NHTSA discussed this behavior in its final order and determination against fiat in federal register vol. 45 no. 7, and endorsed a "reasonable" model similar to my proposal #2 above. It found fiat non-compliant for its behavior which had a nearly similar impact.

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Nhtsa recall number22v312000 I am writing to formally file a complaint regarding my 2013 Hyundai Sonata (VIN: [xxx] ), which is subject to a manufacturer recall #189 due to a fuel line defect posing a fire risk and potential severe injury. Today, I visited wallace Hyundai in fort pierce, florida, and the service manager mr. Louis larussa and associate employed what I can only describe as a warranty circumvention tactic. They repeatedly delayed my recall repair by claiming I must first complete other optional recalls, unrelated to the fuel issue. They stated that they would not be paid by the manufacturer unless all recalls were done together. This is not only unprofessional but also a disregard for the serious safety hazard posed by this fuel line defect,they prioritize dealership financial interests over customer safety and contradicts the purpose of a safety recall. Furthermore, I was told I would need to leave my car for days or even weeks because parts supposedly must be ordered. As this is a nationwide recall, I expect a swift, ready-to-implement solution. I demand immediate action from Hyundai to honor the recall and ensure my safety is prioritized. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

Car engine caught fire. Allstate notified pictures provided below.

I have the 2015 Hyundai Sonata with the 2. 5 gdi engine that eventually will seize due to internal damaged caused by manufacture design flaws. My Hyundai threw a p0010 code which causes my car to idle high and causing low vacuum affecting my brakes. I had a diagnostic test done at a Hyundai dealership that told me it was a cvvt cam sprocket issue and that it was the beginning of the end of the engine, they quoted me 3700. 00 but the engine was to far gone and this repair would only accelerate the engine to seize. They said since the engine isn't seize Hyundai will not cover the cost to repair or exchange the engine, I contacted the Hyundai customer service who stated since the repair that is needed wasn't the root cause of the problems associated with the engine swap warranty they were not going to help me even though I explained to them that the cars high accelerating and the braking system been jeopardized and been told the engine is beyond repairs I feel Hyundai should reconsider their decision and help a loyal customer. I have purchased 12 brand new hyundaj since 2001. The customer representative was extremely un professional even suggesting I scrap my car, also I contacted my Hyundai service technician who said Hyundai customer service never contacted them about my car, when they said they spoke with the technician. Also I received an extended warranty on the 2. 4 gdi engine from Hyundai who many Hyundai customers are or have dealt with. I also purchased an extended warranty which I believe should have been extended as well thank you.

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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!.

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Supplemental information to existing NHTSA complaint involving a 2017 Hyundai Sonata plug-in hybrid (VIN: [xxx] ) while traveling at approximately 70 mph on a heavily traveled highway, the vehicle suddenly and completely lost propulsion without warning. The vehicle rapidly decelerated in traffic, creating a significant safety hazard for my family and surrounding motorists and requiring emergency maneuvering to reach the shoulder. The vehicle was towed to an authorized Hyundai dealership, where diagnostic testing identified multiple high-voltage battery system fault codes: • p0b68 • p0b6d • p0b72 the dealership diagnosed a high-voltage battery system failure requiring battery replacement. The vehicle is currently non-drivable. During my research, I found multiple owner reports involving Hyundai Sonata hybrid and plug-in hybrid vehicles experiencing loss of power, hybrid system failures, limp mode conditions, and propulsion-related incidents. I also learned that Hyundai previously issued recall 18v166000 involving 2016–2018 Sonata plug-in hybrid vehicles due to battery management system and voltage protection device concerns that could result in loss of power while driving. Dealer says does appply for my car. Although my vehicle’s fault codes may differ from those addressed in the recall, both involve battery-related failures capable of affecting propulsion and creating a highway safety risk. My concern extends beyond my individual vehicle. A high-voltage battery or battery management system failure that can cause a complete loss of propulsion at highway speed without warning presents a potentially serious safety risk. I respectfully request that NHTSA evaluate whether similar incidents involving Hyundai Sonata hybrid and plug-in hybrid vehicles indicate a broader safety concern warranting further review. I can provide dealership diagnostic reports, repair estimates, towing records, photos, and videos upon request. Thank you for your consideration, [xxx] information redacted pursuant to the freedom of informati.

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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.

Engine blown out malfunction took two dealer Hyundai folsom lake stated rings are bad sludge buildup in engine and stayed at Hyundai motor America denied engine replacement due to knowledge under theta two engine extended warranty settlement of 150,000 mi 15 years I'm still within warranty but are still being denied had numerous of issues with vehicle oil consumption knock knock sensor replace and other maintenance done since purchase vehicle brand new in 2018.

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Engine was replaced couple of months ago due to a recall and today 3/30/2026 I'm pulling up to my driveway getting home from work in my car starts smoking it catches on fire.

I have a car covered by the theta ii settlement. Engine, fuel system. Metal shavings found in oil and oil is diluted with fuel and oil if overfilled 1 inch above full mark on dipstick upon pickup from dealership. The vehicle is available for inspection at my residence; however, it is currently grounded as a known safety hazard. The vehicle is exhibiting symptoms of imminent engine failure (audible knocking, p0011 code, and oil dilution). Despite being shown evidence of this(photo and video of oil overfill and watery viscosity) , the manufacturer instructed me to continue operating the vehicle, placing myself, and other drivers at risk of a high-speed collision or vehicle fire. The symptoms (p0011 code and engine noise) were confirmed by an independent mechanic on March 25th 2026. However, during the official bearing clearance test (bct), the dealership intentionally overfilled the engine oil by 3 quarts (documented via photograph) to muffle mechanical noise and artificially pass the diagnostic and issued a pass on all inspections despite the oil hazard. Hyundai corporate case manager nikulmar dhabi has admitted on record that the dealer was out of compliance by "being outside the standard notification time" yet they refuse to provide a safety-compliant remedy. Warning symptoms & appearance: symptoms first appeared months ago when I repeatedly got a p0011 code, however on March 24th 2026 I received an engine light with a p0011 and the car going into limp mode while I drove. Warning signs included a persistent check engine light (p0011) and audible metallic knocking. Upon checking the oil myself after the dealer "inspected" it, I discovered the oil was 3 quarts over the "full" line, which is a deceptive practice used to mask rod bearing failure.

See all problems of the 2016 Hyundai Sonata 🔎.

I took my car to dealer to repair recall. Dealer told me if it failed they would keep car and report stolen if I tried to take it. They failed it. I didn't trust them based on their report it stolen statement. I had the police get my car back. I took it to another dealer where it passed recall easily. I believe they wanted my car for a customer, and tried to get away with this ruse.

I bought a 2018 Hyundai Sonata a few years back. No warranty. Used. 110,000 miles. A few short months after I purchased it, it stopped working. I took it back to the same dealership where I purchased it and they said they had to replace the coil packs and spark plugs and clean something in the engine out because there's a defect in the engine. I paid $500. Fast forward a few months later. Same thing happens. I take it to an auto repair shop because it's cheaper and the mechanic says he deals with these same issues with other customers who have similar year, make, and models. This pattern continues to this very day. It broke down while I was working my 2nd job. I have a daughter. She plays sports. I have a second job. I need this problem completely alleviated as quickly as possible. Like a lot of the american public, I don't have extra money to keep up with anything beyond the normal maintenance of my vehicle. I keep it up to date with all oil changes. What can you do to get me a vehicle I can trust and it not break down every couple months and cost $300-$600 each time? I don't have good credit (I'm working on that) I have medical issues that I have to visit my doctor for every 3 months. I have the loan through capital one and they don't offer refinancing. My father who has passed was a car salesman his entire career. I just need reliable transportation and if it's a motor problem like they say then I shouldn't be liable to fix it. The manufacturer should. Please let me know if you need any service records from me. Oh and I also have to put about $20 worth of oil in it every week or so between oil changes. My local oil change guys unfortunately know me very well.

Engine was replaced in 2023. In March 2026 there was a fuel line leak to include fuel misting near heat components. The vehicle was in a fender bender but Hyundai determined this did not cause the leak which eludes to this being a faulty installation of the engine replacement associated with the recall. I’ve reviewed my 2023 engine replacement invoice. I see the service kits were used to transfer parts from my old engine, but the high-pressure fuel pipe (35340-2g710) is not listed. Per Hyundai's gdi service protocols and recall 180, that pipe is a one-time-use safety component that should not be reused during an engine swap due to fire risk. Since it is leaking now, it’s clear the old pipe was reused and has failed. I'm asked for a goodwill replacement because this was a procedural error during the 2023 warranty work and was denied. This is a safety issue.

I was notified of a recall on my from vehicle by Hyundai via email some time in March of 2026. The message said mentioned my vehicle may have a defective/worn purge control check valve that would cause the fuel tank to deform. Potentially leading to a release of fuel over time, which then could ignite. Nhtsa recall #25v796000 my car showed now signs of problems, but I brought it into a Hyundai dealership on March 13th where they confirmed my vehicle had the issue. They said the situation required I not drive my vehicle and gave me a rental in the meantime. I assumed it would be a simple swap of the fuel tank and everything would be fine. I was offered a buyback from my Hyundai claims manager over the situation, but I figured since its a simple fix, I'd keep my car and have it fixed. Two weeks went by with no update from the dealership, so I walked in for answers. Turns out, the subframe of my car has been damaged by the expanding fuel tank and they are still waiting for updates from Hyundai on how to proceed as they themselves don't know how to fix my vehicle. My Hyundai claims manager did not mention this when we talked over the phone and he offered a buyback. None of their recall notices mention structural damage anywhere or even as a possibility. I asked the dealership again on April 1, 2026, and they are still waiting on guidance on how to proceed. Neither does my Hyundai claims manager handling this situation on their end.

This complaint is not related to the existing recall associated with this vehicle. The vehicle is experiencing a serious loss of power and acceleration issue. The car is unable to accelerate past approximately 60 mph. When pressing the accelerator fully, the vehicle does not respond or increase speed. While attempting to accelerate, the engine rpm increases and then suddenly drops repeatedly, causing the vehicle to struggle to maintain speed. This behavior is consistent and occurs during normal driving conditions. This creates a dangerous situation, especially when merging onto highways or attempting to accelerate in traffic, as the vehicle cannot respond when needed. The issue has occurred multiple times and makes the vehicle unsafe and unreliable to operate.

The full stereo system with cameras and most sensors and the car is currently at the dealership as 03/09 @11:00 am and I took it to them as well so that they can repair the other pending recall I have at the moment and they stated that it was a " point to point check recall " and that they would change it whether it would need to be or not and I raised concerns about another possible recall on the car and if they could check it out which is my stereo system they tried to charge me almost $200 and " the symptoms or warnings " was that sometimes it would happen but instead of it going out completely I was able to troubleshoot it by pressing on the little button under the volume button.

Nhtsa complaint statement subject: stop?drive recall – vehicle held since March 5, 2026 – no remedy, no transportation, buyback delayed I am filing a complaint regarding a stop?drive safety recall that has left me without access to my vehicle since March 5, 2026, and the manufacturer has not provided a timely remedy, transportation assistance, or a completed buyback. My vehicle has been at the dealership since March 5 due to a manufacturer-issued stop?drive recall. The dealership has confirmed they cannot legally release the vehicle because of the stop?drive order. The vehicle is not repairable at this time, and the manufacturer initiated a buyback process. However, the manufacturer has been extremely slow to communicate or complete the buyback. Despite multiple attempts to contact them, I have not received a clear timeline, and the process has stalled. I have also not been provided with a loaner vehicle or consistent rental reimbursement, even though the stop?drive order prevents me from using my car. Because of the delay, I am now facing financial hardship, including a past?due car loan on a vehicle I cannot legally drive and cannot retrieve. I am effectively without transportation and without a remedy. I am requesting NHTSA’s assistance because the manufacturer has not met its obligations to provide a timely remedy or adequate support for a stop?drive recall that has removed my vehicle from service for an extended period.

Had an oil change, then 2 weeks later car making noise, checked the oil and it was completely empty, so we refilled the oil. Then a month after again same issue no oil, refilled it again and now a week later it's 2 quarts low already. Also when I come to a complete stop when it is time to go again it's very slow at going or if I try to excel it takes it a very long time to actually excel I think something's wrong with the fuel pump.

Sudden loss of acceleration. This occurred while making a left turn across traffic from a stop. At approximately 7mph the car would not accelerate any further. I was luckily able to coast the vehicle into a center turn lane. Upon coming to a stop I was unable to get any acceleration. The vehicle was turned off and turned back on again and operated normally. There were no trouble codes displayed.

See all problems of the 2024 Hyundai Sonata 🔎.

On 2/19/2026 while driving, my 2020 Hyundai Sonata limited 1. 6t began making several loud explosive / popping sounds. At the same time, the fuel gauge on the display screen appeared to rapidly drop, as if the vehicle was losing gas. Immediately following this, the vehicle began to hesitate and lose power while accelerating. The hesitation felt like the engine was misfiring or struggling to maintain consistent performance. There were multiple explosive sounds before and during the hesitation. This created a major safety concern while driving and the vehicle underwent an inspection at Hyundai in deland, FL. The service department was brief and stated they needed to keep the vehicle for repair for an unknown amount of time as the fuel tank expanded. No further information was provided at that time.

The internal core of the exhaust heat recovery system (ehrs), part of the center muffler/front pipe assembly (#28600-l5210), suffered a catastrophic failure. This allowed approximately 9 gallons of engine coolant to leak directly into the hot exhaust stream. Safety risk: this failure creates a severe visibility hazard. During acceleration from stop lights and stop signs, the vehicle emits massive, thick clouds of white glycol smoke. The smoke is so dense that it completely obscures the driver's view of trailing vehicles and prevents following drivers from seeing the roadway or my vehicle's brake lights, creating a high risk of rear-end collisions. Additionally, the rapid loss of coolant caused the engine to overheat and lose power while in motion, nearly causing a stall in active traffic. Confirmation: the failure was confirmed by the service department at washington Hyundai (invoice #174281). This is the second failure of this specific component (previously failed in Jan 2025). The manufacturer issued TSB 23-em-009h for this defect, acknowledging it affects 2020-2023 Sonata hybrids, but no safety recall has been issued. Symptoms: the issue was preceded by a "sweet" burning smell and a sudden "engine overheating" warning on the dashboard. The failed component has been replaced by the dealer, but the manufacturer refused to replace the coolant-poisoned oxygen (O2) sensors, leaving the vehicle in a technically compromised state. The failed unit is likely held by the dealer for warranty parts return.

Recall 286 my vehicle suffered from this causing heat module failure misfire in cylinder 2 and high pressure in gas tank. Sports Hyundai had previously done a 180 day repair under recall 9b1 for an expanded gas tank after the repair the car suffered from the updated recall 286 . I brang to the dealership 4 times with check engine and misfires and limp mode between 57k and 68k they refused to fix the car under recall 286 and cleared all the codes and continued to make me leave in a unsafe car. On February 14th it sport Hyundais negligence was the direct cause of an auto accident were the car was unable to move out the way because of lack of power /limp mode. I begged them in the final days of me having the car to fix it and saying I didn’t feel safe and they wouldn’t without an extensive amount of money I could not provide . I’m currently filing a claim with Hyundai consumer affairs and the dca in newark and also my senators office and I have a lawyer also who might help I wish to report this to the NHTSA.

It was smoking from the engine, I immediately stopped the vehicle. My safety was put at risk immediately while being in the vehicle when the air bags deployed hitting me in the face and causing my face to swell. The safety of others was put at risk due to others being right next to me and putting others at risk of engine blowing up. Yes, the vehicle has been inspected by police. There were no warning signs on the vehicle.

Our 2022 Hyundai Sonata experienced multiple issues related to recalls affecting the vehicle’s reliability and operation. Due to these ongoing problems, the vehicle was taken to a dealership and has remained out of service and in dealership possession for approximately 90 days. The issues were confirmed by the dealership, and Hyundai motor America was involved in the case. As a result, Hyundai approved a full buyback of the vehicle, indicating the problems could not be resolved in a reasonable timeframe. Despite this, the vehicle remains out of service and unusable. Hyundai has failed to complete the buyback process and has not provided a resolution within a reasonable time. There have been repeated delays and missed timelines. The extended period without a functioning vehicle creates reliability concerns and potential safety risks, as the vehicle could not be safely depended on for regular use prior to being removed from service. The vehicle is currently still in dealership possession and unavailable for use.

Component/system failed: engine – connecting rod bearing failure consistent with Hyundai theta ii engine defect subject to federal recalls and consent orders. The vehicle previously received recall campaign 953 (ksds software update), intended to detect premature rod bearing wear. The engine is currently knocking and has been diagnosed as requiring replacement. The vehicle and engine are available for inspection upon request. Safety risk: rod bearing failure can cause sudden engine seizure or stall while driving, creating a significant crash risk due to loss of power steering and braking assist. Engine failure did occurr despite prior recall software update, indicating potential recall remedy ineffectiveness. Sudden stalling in traffic placed myself and others at risk of collision. Dealer confirmation: Hyundai of north charleston confirmed through warranty history a prior engine replacement request (PA) was submitted by a previous owner but denied. The recall repair was never performed. Current diagnostic findings indicate engine failure consistent with known recall defect. However, Hyundai has refused to perform further inspection or goodwill repair solely due to the vehicle’s salvage branding. Inspection history: the vehicle has been inspected by a Hyundai dealership. No engine replacement was completed. Hyundai customer care has updated case notes but is declining remedy based on title status rather than mechanical condition. Warning lamps/symptoms: the vehicle previously received ksds software update. Engine knocking developed consistent with rod bearing wear. The software did not provide effective prevention of engine failure. The engine now requires replacement. Hyundai is refusing recall-related remedy due to salvage title (predates my wonder ship by many years), despite federal recall obligations applying to the vehicle VIN. This complaint concerns potential failure of recall remedy effectiveness and denial of defect-related inspection.

My 2013 Hyundai Sonata has a replacement 2. 0t theta ii engine. Recently, it developed a fuel leak that identically matches the description of Hyundai recall recall 22-01-047h (NHTSA #22v-312). I have attached a description of my fuel leak as assesed by a Hyundai dealership alongside a . Pdf of the NHTSA safety recall report to demonstrate that the issue is identical. Hyundai corporate is refusing to acknowledge that this is an identical issue and that my exact VIN group for 2013 Sonatas should be included in this recall. This issue represents a serious risk to life and property that Hyundai is refusing to officially address. They have refused to cover repairs for this issue. Additional info: my car has 124,047 miles on the odometer, but this replacement engine only has about 26,000 miles on it.

The vehicle developed a progressive engine failure beginning in early 2024, including loud knocking noises at cold start and visible white/gray/black exhaust smoke. The condition worsened over time. In February 2026, the failure escalated to active oil discharge from the exhaust pipe while the engine was running. Oil exiting through the exhaust indicates internal engine failure (such as piston rings, cylinder walls, or valve seal failure), not an external leak. This creates a safety risk including potential loss of power while driving, risk of engine seizure, and possible fire hazard due to oil in the exhaust system. The condition has been documented on video multiple times and was shown to dealership personnel. The vehicle was taken to a Hyundai dealership for evaluation and remains available for inspection. Despite this, no written diagnostic findings or repair determination have been provided. The issue has been persistent, progressive, and reproducible, and represents a potential defect affecting engine integrity and safe operation of the vehicle.

I have noticed puddles under/near rear side door/tire, the smell of gas after filling up tank. And a reduced mpg lower than normal with same driving habits.

My 2016 Hyundai Sonata (2. 0t/2. 4l engine) has been experiencing loss of motive power and severe engine stumbling at stoplights, creating an unreasonable risk of a crash in traffic. The check engine light is on with dtc p0010. Upon inspection, the internal oil seal plug at the intake camshaft e-cvvt has become unseated, causing an active oil leak. This matches the exact defect and symptoms (elevated idle of 1,200–1,400 rpm and power reduction) described in Hyundai service campaign tx3 (TSB 15-01-022-1). While that campaign only applied to 2015 models, my 2016 vehicle has suffered the identical failure. I am requesting that this safety-related defect be investigated for 2016 models to prevent potential engine fires from oil leaks or accidents from sudden power loss.