Engine And Engine Cooling Problems of Hyundai Sonata - part 1

I have tried to have my Sonata 2013 gone over gor the previous ownership never gave me any ro in this bias was stared. This previous wherebpurchased and worked , was not on the the up and up. Vwhere ,steele Hyundaibwhen owned know keating group purchased. I'm asking ngo iver the safety I the setvice ussues t hat Hyundai is awarevand have all thr campsign numbers looked up I do not believe since ive oened the car ,sonata anythingbwas donen,agein nothing evervstated and knly oil changes done without any given paper wirk given on recalls except oil changes. Ssues and . So wanting, asking that no chargeb,go iver make sure for the situation posted and Hyundai posts in 6bareas yes , go over for the brake system is causing the hybird tobshit down and the car with squiggly line know comes on fuses and the the brake power booster sensor is the problem gor I had the Sonatanon computer that came up also shavings in the engine campaign 162,994 251 to go iver no charge to make sure it was done and whatever faulty be replaced no charge . Charge to Hyundai for the problems if safety and service are on line stating should be taken care if no charge to consumer. Nothing is happening, just the insanity definition, to resolve. I ask forba new case manager I'm entitled to, can't turn down ,but is and lies about contact. Once, returned call no return call. Hope in the next 24 hours this be resolved so I can have this situation at no charge,don't believe ever done,no paper work in my possession, never had oil changes. Never told ,never anything from Hyundai. Almost got reat ended will send bill any to Hyundai tontalje carebofbas well something know NHTSA isn't helping after many complaints as this. Hyundai admits no charge for t his situation ,insanity and no cooperation just arrogance and belligerence . Mileage has nothing to do with. Engine should be looked at for whatnot NHTSA rant about engine in my Sonata hybird and engine,problem still exists at.

See all problems of the 2013 Hyundai Sonata 🔎.

This has been going on nothing resolved and no cooperation. Im going yo locate an attorney that really don't want to. Requesting this be ,the situation be loojedvatb,at no chargevand replace whatbwasvsuppisedly replaced by steele south loop Hyundai ,houston texas ,sold to keating groupbbased out if texas. What I'm asking isn't make sure itvwas done ,and whatever replaced ,inexpensive to do to. Repkace the parts , and computerbprograned to make current no chsrgebto ne for Hyundaibsta t ES in line and would not be getting emails from NHTSA as I do . Hope finally 24 hours resolve, cooperation and done finally.

Engine failure and car burning oil very fast causing other things to go wrong like piston ring and spark plugs.

See all problems of the 2016 Hyundai Sonata 🔎.

The contact owns a 2018 Hyundai Sonata. The contact stated that while driving approximately 60 mph, the vehicle shuddered before losing automotive power. The check engine warning light was illuminated. The vehicle was taken to a local dealer, where it was diagnosed and determined that the engine and nox sensor needed to be replaced. The vehicle was repaired; however, the failure reoccurred. The vehicle was taken back to the same local dealer on several occasions for the repair; however, the failure reoccurred. The manufacturer was not made aware of the failure. The failure mileage was approximately 117,000.

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P1326.

See all problems of the 2015 Hyundai Sonata 🔎.

The contact owns a 2015 Hyundai Sonata. The contact stated that while driving at an undisclosed speed, the accelerator pedal was depressed; however, the vehicle failed to accelerate as intended. The contact stated that the vehicle failed to accelerate above 10 mph. The vehicle was driven to the shoulder of the road. In addition, the check engine warning light was illuminated. The vehicle was towed to the dealer, where it was diagnosed with a failed knock sensor. The contact was informed that the engine needed to be cleaned. The vehicle was not repaired. The contact referenced an unknown extended warranty for the knock sensor; however, the contact was informed that the repair was not covered under warranty or recall. The manufacturer was made aware of the failure, and a case was filed. The failure mileage was approximately 103,500.

The contact owned a 2012 Hyundai Sonata. The contact stated that while driving at 75 mph on the highway, while depressing the accelerator pedal, the vehicle failed to accelerate. No warning lights illuminated. The contact veered over to the right side of the road, turned the vehicle off, and she noticed smoke coming from the engine. A bystander behind her noticed the flames coming up from the engine. The contact mentioned she exited the vehicle and called 911. No injuries were sustained. No medical attention was required. A police report was filed. The fire department extinguished the fire. The vehicle was destroyed. The vehicle was towed to atow lot. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 160,000.

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. Car is using or burning alot of oil. After oil change. It went 2800 miles on the oil change and the cars oil light come on. Checked oil and nothing on the dip stick. Headlights randomly shut off at night. Had the wiring checked and didnt find any issues.

See all problems of the 2017 Hyundai Sonata 🔎.

I am filing a complaint regarding my 2013 Hyundai Sonata in connection with a known recall related to connecting rod bearing wear (I believe this is recall 198). My vehicle is experiencing issues consistent with this defect, but Hyundai has denied my warranty/recall claim. Hyundai’s denial was based on an allegation of “engine neglect,” which is not accurate. I have maintained my vehicle with regular oil changes since purchase, and I have records to support this. I work from home and therefore do not drive as frequently as the average commuter, but I have always performed at least the standard minimum maintenance required. The car has never shown signs of engine neglect or had prior engine issues until now. The failure occurred while I was driving on the highway, when the engine suddenly stopped running. This placed me in a very dangerous situation, as the car stalled in active traffic and posed a risk to myself and other drivers. This highlights the serious safety hazard associated with the known rod bearing defect. Since the failure, I have been left without reliable transportation, and it has been extremely difficult to get to and from work. The problem was reported to my Hyundai dealership, but they are refusing to cover the repair and appear to be attempting to avoid responsibility for this recall. Even if the specific recall campaign is now listed as closed, this is a well-documented defect, and Hyundai should remain obligated to fix it when it occurs. I am requesting NHTSA’s assistance in ensuring Hyundai is held accountable for honoring their obligations under the recall. Consumers should not be penalized thousands of dollars for a safety defect that is the manufacturer’s responsibility.

Pushed acceleration at traffic light to cross and turn into neighborhood, car started beeping frantically, 'check hev system' flashed on dash as well as 'turn off engine' while car decelerated to 1-3 mph. Battery meter bar on left side of dash completely depleted showing no battery power supply at all. Turned vehicle off for a few minutes then restarted. Put the vehicle in drive gear and same warnings appear, car doesn't even accelerate when gas pedal is pressed fully, stays at 1-3 mph crawl. Vehicle stalls out after 30 seconds, vehicle turns on but cannot start.

Oil leak on alternator engine leaking oil from the front cylinder bank’s valve cover or from the valve cover’s gasket onto the alternator. An unknown amount of oil damaged the alternator resulting in illumination of the charging system warning lamp and disablement of the charging system. If the vehicle is continually driven with a disabled charging system, the engine can shut off, increasing the risk of a crash.

See all problems of the 2009 Hyundai Sonata 🔎.

I was going down the highway and noticed a weird sound and when off the highway it just shut down on me thank god I was able to pull in a median and I could not drive or start it. No other warning signs. I had it towed to a mechanic and they told me the engine was blown and he wouldn’t touch it.

The contact owns a 2013 Hyundai Sonata. The contact stated that while her sister was driving at various speeds, there was an abnormal, fuel odor coming from the vehicle. Despite the odor, the contact's sister resumed normal driving operation and later refueled the vehicle. After fueling the vehicle, the fuel odor was stronger, and the tire pressure warning light was illuminated. The contact's sister pulled over to inspect the vehicle, but found no failure. The next day, upon starting the vehicle, there was smoke coming from under the hood of the vehicle. The vehicle was taken to an independent mechanic, where the mechanic immediately smelled a fuel odor and later discovered a fuel leak while inspecting the vehicle. The mechanic showed the contact the fuel leak and diagnosed the vehicle with a defective fuel system. Upon investigation, the contact linked the failure to NHTSA campaign number: 18v934000 (engine, fuel system, gasoline); however, the VIN was not included. The vehicle was not repaired. The contact attempted to reach the manufacturer but was unsuccessful. The failure mileage was 192,000.

The car was being driven from virginia to austin, texas. In tennessee within 10 miles of jackson, TN, on [xxx] the car suddenly lost power and the engine light started flashing and could not be driven above 60 mph (the speed limit there was 75 and the car was being driven at the speed limit until this occurred). Even though the car lost power, the temperature remained steady and was driven to a car repair place and the next day it was towed to a nearby Hyundai dealership in jackson, TN where they declared the engine needed to be replaced. This was also confirmed by our insurance company, progressive. Ran the VIN and the car is an affected vehicle under service campaign 953 and engine should qualify for lifetime warranty but Hyundai is trying to deny the claim due to bogus claim of "exceptional maintenance neglect" which is not even close to true. The car had an oil and filter change a few days prior to the start of the trip and had been well maintained prior to that as well. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

This car has been having white smoke since I got it the smoke coming from the exhaust smells like oil burning.

See all problems of the 2011 Hyundai Sonata 🔎.

This is the first time I have an engine failure. I drove my car 3 min before merging into the route 1 highway. In approximately 800 feet, my car went haywire, all lights in the dashboard went on, the steering wheel got stiff, and the car speed dropped off, I almost got rear-ended. I made an effort to pull over to the break lane. The car shut off and I could not get it to start. I opened the hood, a light smoke was coming out of the engine. I left it open to make sure it doesn't get worse. After 10 min, a state trooper stopped by to check on my safety, I informed him that I called the insurance to report the incident and request a tow truck. After the tow truck dropped off my car in front of my house, I called a mechanic to check it, he informed me that the engine is seized.

Not sure . The car has been regulaurly maintenced and one day the emgine complagely seized up going down the road .

Component or system that failed or malfunctioned: the 2. 4l theta ii engine in my 2018 Hyundai Sonata is consuming an excessive and unsafe amount of engine oil—approximately 1 quart every 750–1000 miles. The engine has not seized or failed yet, but the oil consumption is abnormal and dangerous. The engine is available for inspection upon request. Safety risk: this oil consumption issue poses a significant safety risk. If the engine runs out of oil unexpectedly, it could lead to catastrophic engine failure and sudden loss of power while driving—potentially causing a serious accident. The lack of warning or engine light prior to dangerously low oil levels increases the risk. Reproduction/confirmation: the issue has been reproduced and documented by a certified Hyundai dealer through an oil consumption test. However, despite confirming the problem, Hyundai has refused to cover the repair. Inspection history: the vehicle has been inspected by a Hyundai dealership. No other independent agencies (e. G. , insurance or police) have inspected it. Warning lamps or messages: no warning lamps appeared before the engine oil was found to be dangerously low. There were no check engine lights or oil pressure warnings prior to discovering the oil consumption issue. Other key information: Hyundai refuses to cover the repair due to the fact that I am not the original owner—even though the original powertrain warranty would have covered the issue if I were. Hyundai arbitrarily reduces the powertrain warranty to 5 years/60,000 miles for secondary owners, despite the safety risks being identical regardless of ownership. Furthermore, this exact engine has been the subject of multiple lawsuits and class actions due to excessive oil consumption, connecting rod bearing failure, and engine seizure. Hyundai has acknowledged the defect in various settlements but continues to deny coverage for affected owners like me.

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

See all problems of the 2019 Hyundai Sonata 🔎.

Engine failure. After taking my Hyundai listed above in for repairs to the air conditioning not working properly and while in custody of jeff's automotive service, here in sterling, IL 61081, the engine suddenly died out while they were test driving the car. They were able to jump start it once, and then it died out again while driving it. This time the car could not be restarted by all means possible. Being in the shop, other possible causes were checked and not one of them worked. The engine is completely dead. After checking for possible causes online it was found that a recall for the very same engine failure had been done back in 2017/2018. \n" + 'for unknown reasons, I was never notified nor did I ever received such notice. Now at this time, we have contacted a local dealer and they state that because the auto had not been taken in for the recall repairs, it no longer "qualifies" for free repairs and any repairs would have to be paid for. Upon checking the NHTSA website, it states that there are no time limits on the repairs. I was going to contact national Hyundai corp to inquire about it, but decided instead to file a complaint with you. 'the question is my car still eligible for the recall repairs under the hyndai mfg recall #162 'of March 31, 2017? recall number 17v2260000??? given the fact that I did not receive their notification if indeed, one was sent, and I was totally unaware of this recall???. I sincerely\n' + 'believe that under the laws and procedures, I should still be eligible for this recall repair of\n' + 'their faulty engine failure in my automobile listed above. \n' + 'therefore I am at this time requesting an investigation and a decision before I make any attempts to contact Hyundai mfg directly. Also as part of my inquiries I spoke to the service department of schimmer Hyundai in peru, IL the closest dealer to me, and after checking the VIN number I was to.

See all problems of the 2014 Hyundai Sonata 🔎.

I was driving my 2023 Hyundai Sonata with 22,000 miles on I-96 near grand rapids michigan at or slightly below the speed limit of 70 mph. Suddenly, with no advance warning of any kind, the engine shut down. I was able to coast and maneuver to the right shoulder of the road while avoiding traffic, including a large tractor trailer that almost hit us. The vehicle than had just enough power to get off the next exit and on a local side street. At that point the vehicle would not restart and you could smell a strong odor of fuel. I called Hyundai and they sent a tow truck to take it to the nearest dealer. (I am 700 miles from home). The dealer's service department diagnosed the problem then replaced the fuel injectors still under warranty.

See all problems of the 2023 Hyundai Sonata 🔎.

On [xxx] as I was driving out my garage my car started to drive with hesitation. As I turn the corner from home my car started to shake vigorously so I turned into the alley which leads back to my home the check engine light came on. I was able to drive into the garage. So I went to a mechanic who has serviced all my previous cars and he showed me that the car is burning too much oil that was effecting the performance of the engine making it drive sluggish I was also told at the oil changing company in numerous occasions that the Sonatas burn oil. I’m trying to get it resolved but having no luck . It’s a real hassle with servicing this car. I need assistance on what I need to do information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

My 2018 Sonata has had an oil consumption problem since 2023. We initially thought it was the oil change garage issues. Had an oil consumption study conducted by Hyundai between July -September 2024. We were replacing 1,0 -1. 5 qt oil every 700 - 1,300 miles. After the study, Hyundai told me I did not have an oil consumption problem. (seriously?!?!) we had to replace the starter and now the spark plugs. Photo enclosed of how burnt the spark plugs were. Our mechanic was so mad that Hyundai was not honoring their warranty but allowing my engine and connected parts to just burn up. Hyundai told me to come in for another check tomorrow, 8/25/25. I called the Hyundai consumer line on 8/18/25 (4th new case number in 13 months) and the person who answered the phone asked if I contacted a lawyer. I asked her if I needed to contact a ? I’ve been reading online about this problem today and found information about NHTSA and decided to file a complaint. This is dangerous because when the engine blows, I may be accelerating on the interstate and merging. That could be a fatal problem with this car. Traveling on the interstate on 8/10/2025 my Sonata stuttered and hesitated upon acceleration. We took back roads and limped home. My mechanic replaced the severely burnt spark plugs and told us our very nice car would be worthless soon if Hyundai did not fix this oil consumption problem. He called our Hyundai dealer on our behalf.

The vehicle went in for repair at the dealership early July for a check engine light and dtc error code. It was revving high after being driven for more than 20 min or so and wouldn’t get to above 60 mph. Jerky, dangerous acceleration and deceleration seemingly out of nowhere. The dealership replaced the fuel pump which is what they said was causing the error. Today on August 10th, check engine light popped up again with a dtc error code. Weird acceleration and deceleration and general jerkiness when driving. Scheduled service appointment for next week.

My check engine light came on and my car went into “limp mode” and wouldn’t go above 30 mph. It also kept blowing hot air through the vents and the coolant level thermometer kept raising.

While driving at highway speed, the engine suddenly lost power and the brakes locked. I narrowly avoided a collision. This sudden failure left me unable to safely control the vehicle, placing myself and other motorists in immediate danger. This is not only a mechanical defect but a serious safety hazard that matches the exact conditions described in Hyundai’s prior theta ii engine recalls.

The contact owned a 2018 Hyundai Sonata. The contact stated that while driving at an undisclosed speed, the vehicle sputtered, jerked and lost motive power. The check engine warning light was illuminated. The vehicle was able to restart but made an abnormal ticking sound. The vehicle was taken to the dealer, but was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 72,000.

Hello, I brought my 2014 Hyundai Sonata (approx. 73,000 miles) to an authorized Hyundai dealership (motorworld Hyundai, wilkes-barre, PA) on August 4, 2025, for recall 162 (NHTSA 17v-226) due to audible engine knocking. I reported the noise when dropping off the vehicle. The dealer claimed the engine passed the inspection but did not provide any documentation confirming that the required bearing test was performed. They said the issue might be from the top of the engine (possibly the timing chain) and wanted to charge $800 to disassemble the engine, with a repair estimate of $2,900. The reason they wanted to disassemble the engine is because after an initial diagnosis for $160 they discovered the noise is not from the timing chain. Besides, it would be extremely unusual for the issue to be a timing chain at 73k. I later learned from Hyundai customer care that the recall still shows as “incomplete” in their system, meaning the inspection was never properly submitted. I'm conerned that the recall was not properly performed or submitted (why does it still show "incomplete" if they insepcted it and it passed?) and that the symptoms may still indicate the exact defect covered under recall 162 (rod bearing knock), I believe I was denied proper remedy (in a less polite way - I think they flat out lied to me about the real issue) and I was pressured toward expensive non-recall repairs without conclusive diagnosis. My understanding is that getting a diagnosis for a timing chain shouldn't cost anywhere near $800. I am requesting NHTSA review this situation to ensure Hyundai fulfills its federally mandated recall obligation. Thank you, [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

My 2017 Hyundai Sonata limited check engine light came on at approximately 103,000 miles of use. This happened last week. The code it was pointing to was a faulty fuel pressure sensor. Could also be combined with faulty fuel pump, but the primary code indicates the sensor. I will be taking it in to the Hyundai dealership shortly. The main reason I’m reporting this is because of my previous experience owning a 2011 Hyundai santa fe that had to have the engine replaced three times all under warranty. There ended up being a class action lawsuit because of several owners experiencing the same proglem. While this may not be the same case, I am leary of engine problems like this. I take very good care of my cars with regular maintenance, so I’m reporting this just in case others are experiencing the same problem.

While driving on the highway, the motor all of a sudden lost all power and the brakes locked causing a collision. I've never had any problems until then. My car was in tip top shape with no issues until the engine / motor decided to defect. Hyundai she recall this engine issue before someone gets killed.

Car turned off at light all lights work and turns on engine won’t roll over the battery and alternator and starter are all good.

I had a standard oil change done on my car and it was running fine afterwards. Later that evening, my car started smoking and spontaneously burst into flames from the hood. The fire originated in the hood of the car and melted the entire front of my car as well as the entire inside. It burned a lot of fuel and oil, which leaked onto the ground and continued burning on the ground. My car was overtaken by flames in a matter of a few minutes. It burned so fast that there was nothing I could do to stop it. I was not aware of anything wrong with my engine or fuel lines, or anything like that. However, something was very wrong for the engine area to catch fire like that spontaneously.

I bought this Sonata one month ago. Driving down [xxx] in bonita springs fla the car shut down. No noise all dash lights came on I got to a safe place. Sat in the parking lot of fresh market for at least 30 minutes went to start it and nothing happened. No crank nothing. Aaa came towed it to my house. The filling day I checked the battery it is good. So had it towed to scotty’s automotive. They called me Friday morning and said the motor was locked up. According to carfax the car was at brand ton Hyundai in may of 25. I called after I bought the car carfax said they found the alignment was off. I called to see if they did the alignment they said they did not do it. The wholesale it. My thinking is they did service it according to carfax report and knew there was signs something and wholesale it. I did not buy it from brandon Hyundai I bought it from a guy in leigh acres fla. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

The contact owned a 2013 Hyundai Sonata. The contact stated that while driving at an undisclosed speed, the contact smelled fuel and noticed smoke coming from the engine compartment with no warning lights illuminated. The contact stated that the engine had caught on fire. The contact stopped the vehicle, and the contact and the two passengers quickly jumped out of the vehicle. The contact stated one of the passengers sustained a minor leg injury, and medical attention was provided. The fire was extinguished by the fire department. A fire report was filed, and a fire report number was not provided. The origin of the fire was not yet determined. A police report was filed. The dealer was not contacted. The vehicle was not diagnosed or repaired. The vehicle was destroyed. The manufacturer was not made aware of the failure. The failure mileage was approximately 95,000.

The contact owns a 2014 Hyundai Sonata. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken to the dealer, who diagnosed a failure with the connecting rod bearings, resulting in damages to the engine. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA campaign number: 17v226000 (engine and engine cooling); but the VIN was not included. The manufacturer was notified of the failure, a case was opened for repair assistance. The contact was later informed that the assistance request was denied on the grounds of poor maintenance history. The contact stated was not the owner of the vehicle during the time cited by the manufacturer. The failure mileage was 136,000.