2017 Hyundai Sonata Complaint Log

Burns through oil Oil will be black and barely any on the dip stick Cannot make it to recommended oil change miles or date Goes into limp mode

Care recently became inoperable. The engine was knocking, then stalling and then inoperable. Checked Hyundai website to find Engine Recall describing exactly what my Hyundai was/is experiencing. I brought vehicle to Clay Cooley dealership (39444 Lyndon B Johnson Fwy, 75232) and explained that I see the recall on the Hyundai website describing what my vehicle is experiencing. After their service mechanics review, the Service Department Representative falsely accusing me of the engine failure, stating that I "must not have changed my oil regularly". According to the service department, my 2017 Hyundai Sonata (132,000 miles) is not covered in the engine recall, and I must pay $4,926.53 for the repair. cc: FTC - ReportFraud.ftc.gov Texas Attorney General - Consumer-Protection/file-consumer-complaint

See attached document for complaint.

Sun roof flew off while driving, the metal framing was twisted and dent. Sun Roof was closed at the time. Pictures were sent to insurance company but no one has looked at it yet. No warning. Sun roof was working properly.

Here is your updated review with that included: ⸻ I am very disappointed with Hyundai Motor America and the service I received at Hyundai of Renton. I own a 2017 Hyundai Sonata and received a letter about a required software update and ignition cylinder protector due to known theft issues. I went to the Renton dealer for the recall service. They performed the software update and were supposed to install the ignition cylinder protector. Unfortunately, my car was later stolen because of this exact issue. The ignition was damaged during the theft, and I had to replace it myself just so I could drive the car. When I returned to the dealer, they refused to install the ignition cylinder protector, saying the ignition was broken. It was broken because of the theft — which happened due to Hyundai’s known defect. After the recall software update, my key fob also stopped working properly. I went back to the dealership, and they refused to fix or properly reprogram my key fob. On top of that, the service manager, John, was very rude and unprofessional. This has been the worst experience I’ve had with a vehicle and a dealership. Because of this situation. Very disappointed.

While driving around 45 mph, the steering wheel locked up and car came to a hard stop. Luckily cars swerved to avoid me. This was the second time it happened. The first time I was in a parking garage and the steering wheel locked up. After restarting the vehicle, the steering wheel worked again. The dash showed no fault codes or engine light. I found out there is a service bulletin and took it in to the dealer. Once there, the confirmed it was the power steering and is covered by the service bulletin and extended warranty. However, because the bulletin requires the dealer to clear code to try and reproduce it, I have to pick up vehicle because they could not reproduce the fault code. So now I have to drive the vehicle knowing their is a service bulletin for the problem and have it happen again before it is fixed. There is an extremely high likelihood of injury considering you lose all power at wheel and car continues to move.

My 2017 Hyundai Sonata Hybrid has a permanent and recurring DTC P1326 (Knock signal range/performance) from the Knock Sensor Detection System (KSDS), indicating potential connecting rod bearing wear in the Nu 2.0L engine. The vehicle enters limp mode (reduced power, limited acceleration/speed) on the highway under load, with hard engine vibration, tinkling/knocking noise from under hood, and significantly reduced MPG. These symptoms create a serious safety risk: sudden loss of power at highway speeds (e.g., 50+ mph) makes it difficult to maintain speed, merge, or avoid hazards, increasing crash risk or stranding in traffic. In rare cases, bearing wear can lead to engine seizure or failure. The problem first appeared summer 2024 at approximately 115,000 miles. The Check Engine Light illuminates (cristmass tree), and limp mode triggers during highway driving. I have an OBD scan showing confirmed, pending, and permanent P1326, plus related hybrid communication codes (U0293, U1004) likely secondary to the protection mode. The vehicle has been inspected multiple times (four visits) by a Hyundai dealer. Each time they scanned the code, performed basic checks, but stated “engine is working normal, no road vibration, nothing” and did not resolve the issue. The code returns immediately after clearing. I replaced the knock sensor, engine mounts, spark plugs, ignition coils myself—did not fix it. Dealers did not perform the full bearing clearance test or follow TSB 22-01-023H (Service Campaign T6G) procedure as required for this known issue (related to Recall 209 and Campaign 966). The component (engine/connecting rod bearings) is still in the vehicle and available for inspection. No police, insurance, or other parties have inspected it beyond the dealer. This matches a widespread known defect in 2011–2019 Sonata Hybrids (bearing wear triggering P1326/limp mode).

This car is becoming more of a headache than it’s worth. Turned the car on, My car started shaking and my check engine light came on. then I got this message “A possible condition with your engine control system has been detected on a 2017 Hyundai Sonata”

Was just driving and lost steering, basically very hard to turn the wheel. Traction control light and a red steering wheel light came on.

Please see the attached paperwork and I have more if needed. I am not receiving any help from the local Hyundai dealership in which I purchased the car, and I have reached out to the main Headquarter. This is the 2nd Hyundai I purchased, and I was not made aware of the oil consumption issue.

My vehicle has a documented excessive oil‑consumption defect. After a 1,000‑mile oil‑consumption test performed by a Hyundai dealership, the engine was found to have consumed 2.8 quarts of oil, which is far above normal and poses a safety risk. The dealer referenced TSB 23‑EM‑008H and recommended a chamber cleaning but could not guarantee it would resolve the issue. Hyundai Motor America declined to cover the repair and refused to escalate my case. This level of oil consumption is consistent with known Theta II engine defects that have led to engine seizure, stalling, and fire in other vehicles. I am reporting this as a safety concern due to the risk of sudden engine failure while driving.

The 2017 Hyundai Sonata has had an ongoing engine malfunction defect that is causing engine knocking, stalling, and smell and rapid depletion of oil. The continuous issues are concerning especially when the car is not driven on a regular basis as it is utilized as a second vehicle. This has been a noticeable issue for quite sometime now. I have taken the car to the Hyundai dealership on multiple occassions after notably heavy oil consumption in a short time period in between scheduled oil changes. I am told by the dealership that it is evident that the engine is rapidly processing and burning oil inappropriately from a possible manufacturing defect recall related to connecting-rod bearing failure that was issued by Hyundai for various Hyundai models. The damaged engine may stall, increasing the risk of a crash. In addition, oil may leak onto hot exhaust components, increasing the risk of fire.

I was involved in a severe motor vehicle collision in a 2017 Hyundai Sonata. The airbags failed to deploy during the crash. I sustained serious injuries and was transported from the scene by EMS. This vehicle has known safety recalls, and I believe the airbag non-deployment may indicate a safety defect.

The vehicle’s dashboard continuously displays a “hood open” warning even though the hood is fully closed and securely latched. The hood has been physically inspected and confirmed to be closed, yet the warning persists. The issue appears to be related to a faulty hood latch sensor or switch, which is part of the hood latch assembly. The warning is inaccurate and does not reflect the actual condition of the hood. I am requesting that NHTSA review this issue for potential investigation, as it may represent a defect in the hood latch sensor system on the 2017 Hyundai Sonata that could affect multiple vehicles and pose a safety risk.

My 2017 Hyundai Sonata Sport Limited 2.4 has a known engine defect causing excessive oil consumption. The vehicle was at an authorized Hyundai dealership for the oil consumption test and had been approved for a new engine replacement. Prior to the repair, I completed $2,300 in maintenance, specifically an oil combustion cleaning and spark plug replacement, which the dealership said was required to perform the oil consumption test. While the vehicle was in the dealership’s custody, it caught fire on 12/19/2025 at World Hyundai Matteson. No one was injured, but the car was destroyed. This occurred while the vehicle was under warranty repair, creating a serious safety risk. I am submitting this complaint to document the fire and the associated safety issue with this engine defect.

Cylinders in the engine are misfiring causing car to shake. Pistons in the engine are having trouble keeping the air compressed so psi to continue to decrease causing the misfire.

Manufacturer is refusing recall engine replacement alleging neglect without proof of causation. Vehicle has documented maintenance. Denial appears improper under recall compliance law.

Manufacturer has refused engine replacement under federal KSDS recall settlement without providing causation proof. Owner has maintenance records. Request NHTSA compliance review.

My car is blowing a large amount of white smoke due to the head gasket being cracked, I was quoted 2 grand to fix it. The car is not old enough to need a new head gasket, this is completely due to how the car manufactured and I have seen many other reports of this, there should be a recall and this should be fixed free of charge.

The contact owns a 2017 Hyundai Sonata. The contact stated that the vehicle had experienced excessive oil consumption, caused by engine rod bearing failure. The engine rod bearing failure caused excessive oil consumption and premature spark plug fouling, requiring the frequent replacement of the spark plugs. The dealer was notified of the failure. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was approximately 132,000.

I am filing a complaint regarding Hyundai Motor America’s handling of my engine-related safety issue, buyback process, and rental reimbursement. My vehicle was towed to Elder Hyundai for a suspected engine failure. Elder Hyundai informed me that my car was covered under an engine recall campaign and that they would submit a request for free repair. Shortly afterward, Hyundai Motor America notified me that they would not perform the repair and that I was being forced into the buyback process under a Settlement Agreement Release (SAR). Elder Hyundai refused to provide me a loaner vehicle because I was not proceeding with repairs, despite the issue being part of an engine recall. They also refused to give me the repair order report for my records and refused to let me retrieve my personal items from my vehicle unless I paid a diagnostic fee. Hyundai Motor America told me I was covered under them for this fee, yet Elder Hyundai still refused. Regarding transportation, I was initially told Hyundai does not reimburse Turo rentals due to concerns about “fake receipts.” Because of my budget and age, Turo was the only rental option I could afford. After escalating, a supervisor approved reimbursement for my Turo rentals, but as of today I have not received any reimbursement. I am a school teacher with a two-hour commute each day and I have [XXX] twin toddlers. I had to use rent and bill money to pay for the rentals based on assurances that reimbursement would be processed within a week. I submitted all receipts, but my new case manager claims he has no record of them, further delaying reimbursement. I completed and returned all SAR buyback documents on November 15th, yet I have received no update on payment or processing. This entire ordeal has put me at financial risk, including potential job loss and housing instability. Hyundai’s delays and mishandling of this safety-related case have severely impacted my livelihood. I ask that you please review HMA’s action INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I am reporting a serious safety defect involving a vehicle purchased from [XXX] on [XXX]. The vehicle was later involved in a collision that resulted in a total loss. According to the police report, I was not at fault. During this crash, none of the airbags deployed, which indicates a possible defect or prior undisclosed issue with the airbag system. The vehicle was sold with a warranty and was represented as safe and road-ready. The dealership also provided and managed the full-coverage insurance policy. However, the total-loss claim has been delayed and obstructed, and the dealership has not taken responsibility for ensuring the vehicle’s safety or functionality. There is significant concern regarding the condition of the vehicle prior to sale. Records show that Byrider cleared the vehicle’s computer on July 16, 2025, less than a month before purchase. This may have erased important diagnostic information, including any prior airbag-system faults. Clearing the computer in this manner raises questions about whether a known issue was hidden or whether mandatory diagnostic data was removed before the sale. At the time of purchase, I signed an airbag disclosure form in which Byrider stated: •They had “no knowledge of any reason why the airbag system would not operate properly,” and •They “cannot guarantee that the airbag system will deploy in the event of an accident.” Despite this disclosure, the fact that the airbags did not deploy in a crash severe enough to total the vehicle suggests a significant safety defect, potential misrepresentation, or a failure to comply with federal safety requirements. Airbag non-deployment in a total-loss collision indicates a system failure that poses a serious risk to consumers. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Airbags did not deploy no indicator light came on before nor after I was struck from my driver side front area and yes it is available for inspection upon request. My safety along with my sisters safety was put at risk due to the negligence and cheapness of the dealership I purchased the car from also from there misleading information and improper inspection before selling me the car Car has not been reproduced or confirmed The car was inspected by a third party appraisal company for damages amounts There were no lights on at all before the accident and I am pretty certain that the dealership cleaared the codes before selling me the car

Tire blew out at low speed near residential area on the tire sidewall in a square shape approximately 3inches wide and 3inches long on each side. The blown out square area is still attached from the outer tire area like an open flap. The sidewall failed four inches in from the outer edge and ripped open. These was an Arizonian Silver Edition, all-season tire with the markings of M+5 205 / 65R16 95H and DOT U93P XYT 2022

While driving my 2017 Hyundai Sonata, the engine suddenly began making a loud knocking noise and the vehicle entered "limp mode" The check engine light was blinking, I took the car to a very close autozone and the check engine light came on with code P1326 (pricture upload files), which is directly related to the known KSDS connecting rod bearing defect. This issue is part of Hyundai’s safety recalls and engine warranty extensions. After that, I called Hyundai directly (reference number for that call #XXX). A kind young woman informed me that my car had been through "Service Campaign 953" and successfully completed a "Knock Sensor Detection System (KSDS) Software Update." Thanks to this, she explained that my car is under the "Hyundai TXXI warranty" and that, given the noise I was hearing along with the "P1326" code, it was very likely that my car qualified for a free engine replacement. She then scheduled an appointment for me at the nearest Hyundai dealership for the following morning. After more than two weeks of inspection, the dealer confirmed that the engine has internal damage and needs a complete replacement due to rod bearing failure. This is the exact defect addressed in Hyundai’s safety campaigns. However, Hyundai Corporate is refusing to cover the engine replacement because the vehicle exceeded its mileage limit, even though the engine failure is clearly caused by the known safety-related defect. The dealer acknowledged the problem and documented everything, but Hyundai is denying proper safety recall-related coverage. This puts my safety and the safety of others at risk, the vehicle is currently disabled and undrivable at the dealership due to the defect. Hyundai is only offering a buyback or a small cash settlement instead of performing the necessary safety repair. I am filing this complaint for many reasons but mainly because the refusal to replace the defective engine, despite the recall-related code P1326 and confirmed bearing failure. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

I am the original owner of a 2017 Hyundai Sonata with the oil consumption defect Hyundai is well aware of. For years I have been adding a quart of oil every thousand miles and had my spark plugs replaced three times in two years now. Why am I not included in the recall so I can have the repairs done free of charge? The dealer wanted me to start having them monitor my oil consumption first which will cost me around seven hundred dollars for something they already know is defective. I submitted repair bills for the spark plugs to Hyundai around a year ago, but they would not reimburse. This is a safety issue as car starts to run badly with fouled plugs.

I have just purchased this vehicle from Jones Nissan in Savannah, TN September 27, 2025 for my daughter's 18th birthday. I was told the car passed all inspections etc and was sold the car same day. We checked the oil before leaving and oil was good. Within 45 miles we came home and my husband checked the car and the oil was down half quart. We didn't think anything of it and he did complete oil change. Last night my daughter comes in and my husband checks her oil almost 3 quarts low. There are no leaks nothing we can find. This is absolutely absurd this was a car for my 18-yr old daughter to go to college and back. There are no lights that come on to tell you it is low or nothing. This is completely uncalled for and Hyundai needs to replace or correct this issue. This could cause her to be stranded or hurt if this motor was to lock up.

The contact owns a 2017 Hyundai Sonata. The contact stated that while driving at an undisclosed speed, the contact engaged the hybrid function on the vehicle and the vehicle unexpectedly stopped. The contact stated that the accelerator pedal was depressed; however, the vehicle took several minutes to respond. There were several unknown warning lights illuminated. The contact stated that when the vehicle accelerated, the vehicle jerked abnormally. The vehicle was taken to the dealer, where it was diagnosed and determined that the brake sensors had failed and needed to be replaced. The vehicle was repaired; however, the failure recurred. The manufacturer was made aware of the failure. The approximate failure mileage was 130,000.

While driving my vehicle I have lost power steering twice completely. The first time I was in a five-story parking garage turning into a parking space, when power steering went out. The second time I was pulling into my driveway and the power steering went completely out. At other times my car would pull to the right just a little at one point or maybe even harder at other points. I never know when I'm going to have a problem sometimes I don't have a problem, car drives normal this problem has existed for the last 3 weeks. Like power steering sometimes is harder to turn to the left around a curve are a corner. When the steering goes out warning lights do come on one like a hazard sign one like engine light and others. I take really good care of my car my personal mechanic has called Hyundai so he could get information on how to fix my vehicle they have informed him that I have to bring it into them and would not tell my mechanic what the problem was. I would say the problem exists 20% of the time 80% of the time the card drives great no problems but while driving these things change.

My car is needing an oil change almost every 3 weeks at this point. Mechanics say there is no leak and there may be a recall for GDI engines that are burning oil very fast. This is a reoccurring problem and would love to find out if I can get this recalled like I seen other 2017 Hyundai Sonatas.

Front two seat belts are difficult to latch to buckles. Even when they are buckled while the car is in motion they tend to unlatch by itself.

We bought the car 9/27 was told the car past the dealer inspections. The cars oil was checked and i am sure it was changed and all prior to us. We drove it home and she has drove it to school. On 10/15 my husband did a routine oil check and it was over 2 qts low. He did a complete oil change and changed the pcv valve and as of yesterday it has used another 1 gt. This car was just bought 8900 and now i am assuming it needs rebuilt or new engine. I would like for this to be reimbursed. This is outrageous. When we reported the prob it had 149000 miles on it and Hydunai gives to 150000. I need this issue to be fixed

To whom it may concern, I have own my vehicle since Jan 2018, which was purchased from the dealership's owner w/less than 10k miles. Maintenance has been performed iaw Hyundai's recommended schedule. However, yesterday, I was informed that my vehicle needed a new engine and other replacements totaling $13,934.89. This is OUTRAGEOUS. How can a well kept vehicle w/106445 miles, need such replacements? Thus your assistance will be greatly appreciated.

I Purchased my 2017 from Hyundai motors of America in 2017. I am the only owner. I Took the care in for a recall for Campaign 953: ECM & CLUSTER UPDATE-ENGINE MONITORING LOGIC PRODUCT IMPROVEMENT to have a a knock sensor placed on the engine to monitor the vehicle for signs of engine failure in 2022. The car has been showing signs of engine failure since the knock sensor was placed on the vehicle and Hyundai claimed that the knock sensor was bad and replaced in. Last week while I was driving the car ok the interstate at 70 miles per hour, the engine stopped running completely while driving. The check engine light did not illuminate until after the vehicle’s engine stopped running. The vehicle lost its ability to accelerate while driving. I was almost hit by a semi as I tried to guide the disabled vehicle to the emergency lane. I took the vehicle to one of the Hyundai dealerships for an inspection. The inspection shows engine failure due to internal failure. The knock sensor from campaign 953 failed to detect any engine problems. I Called hyundai motors of America and was given a case number (41539529). Even though the dealer reported to Hyundai motors of America about the engine failure, Hyundai motors of America is refusing to fix the vehicle due to mileage even though there is an extended warranty through campaign 953. This company is a fraud!! The company wants me to pre-approve authorization payment for them to replace my engine at my expense regardless of the recall, and their negligence!! They are placing people lives at risk.

The contact owns a 2017 Hyundai Sonata. The contact stated that while operating the vehicle, there was an abnormal knocking sound coming from the engine compartment with the check engine warning light remaining illuminated. The vehicle was taken to the local mechanic who discovered that there was no oil in the engine, even though the contact had recently added oil. The cause of the failure was not yet determined, and the vehicle was not yet repaired. The manufacturer and local dealer were notified of the failures. The failure mileage was 109,000.

My car steering is locking up while driving on highway and regular roads. Resulting almost in not being able to control and crash. I also had a recall for my engine which was already replaced and now having same issue with oil burning and not leaking.

We are the original owners of this vehicle. Over the past year we have been having to put quart(s) after quart(s) of full synthetic oil into this vehicle. There are no leaks anywhere that the mechanic can find and no burning of oil from the exhaust. We don't drive the vehicle many miles but have to put oil in at least every few weeks. The mechanic stated the last few times we have taken the car in to get looked at that it is a known issue with this make/model. He stated there was nothing he could do and we needed to contact the manufacture. We have tried on numerous occasions to make contact as well as the dealership has as well with no resolve.

The contact owns a 2017 Hyundai Sonata. The contact stated that after receiving oil changes on four occasions, the oil warning light illuminated. The vehicle was taken to an independent mechanic twice, and the contact was informed that the oil pressure sensor was leaking at the connector, and the oil pressure sender or the switch needed to be replaced. The vehicle was repaired, but the failure persisted. The vehicle was then taken to a dealer after being driven for 1,000 miles, and the oil usage was documented. The contact stated that in 7 days, the engine had consumed one quart of engine oil in 167 miles driven. The vehicle was taken back to the dealer, where a combustion cleaning was performed; however, 4,000 miles later, the failure reoccurred. The manufacturer was not notified of the failure. The failure mileage was approximately 92,379.

.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

My 2017 Hyundai Sonata is exhibiting a severe metallic knocking noise and metal debris in the engine oil—primary indicators of the Theta II engine defect (NHTSA Campaign 17V578). These symptoms indicate imminent engine failure, posing a significant stall and crash risk. On or around 8/20/25, I took the vehicle to Earnhardt Hyundai-San Tan. I informed the technician of the oil burning and metal shavings. They refused to perform the recall repair and charged a $200 diagnostic fee for an inspection related to a federally mandated safety recall. Under federal law (49 U.S.C. Chapter 301), recall remedies must be provided at no cost to the owner. Furthermore, components were not reassembled correctly during the inspection. The vehicle is now leaking oil onto my driveway and has been rendered inoperable. It has not been driven since I picked it up on August 25, 2025. I am requesting that Hyundai be compelled to perform the recall remedy and reimburse the unauthorized diagnostic fee.

WHILE DRIVING ABOUT 45 MILES PER HOUR THE GAS ENGINE SHUT OFF AND THE ELECTRIC ENGINE LOST POWER, WERE ABLE TO COAST A FEW MILES UNDER LOW POWER UNDER ELECTRIC ENGINE AND THEN ENGINE SHUTDOWN COMPLETELY AND WOULD NOT START, HAD CAR TOLLED TO NEAREST MECHANIC, HE CONFIRMED ENINGE DAMAGED BY ROD BEARING FAILURE, HE TRIED TO GET A NEW ENGINE TO REPLACE THE DAMAGED ONE AND HYUNDAI TOLD HIM THEY COULD NOT SELL HIM AND ENGINE

- I was reversing from a car space, and do a K-turn, the steering wheel locked when moving forward. When the steering wheel locked, the red steering wheel light on the dashboard is on. I have to turn off the engine to reset the power steering. It's available for inspection upon request. - I cannot move the car in the parking lot. The other drivers in the lot do not know what happened. - I don't know exact step to reproduce the problem. - The 2015 Sonata may have a faulty EPS (Electronic Power Steering) motor, or a failed torque sensor. It would be helpful for Hyundai to confirm the 2017 Sonata model does not have these issues/recalls.

I am constantly seeing my oil light coming on. I have placed at least three quarts of oil in the last month while driving around only 1,200 miles. I took vehicle to mechanic who explained this is known issue with the vehicle I own.

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.

What component or system failed or malfunctioned, and is it available for inspection upon request? The engine in my 2017 Hyundai Sonata Sport is defective. Oil pressure failed testing, oil contamination was found on the oil pressure sensor and connector, and the vehicle has experienced excessive oil issues. The engine is still in my possession and available for inspection upon request. How was your safety or the safety of others put at risk? The vehicle has gone into limp mode on the highway, which caused a sudden loss of power and created a dangerous situation in traffic. The car also shakes, misfires, and loses power unexpectedly, which could lead to stalling or loss of control at highway speeds. I do not feel safe driving the car. Has the problem been reproduced or confirmed by a dealer or independent service center? Yes. Multiple Hyundai dealerships have inspected the car. One confirmed low oil pressure and oil contamination at the sensor. Previous visits dismissed the oil warning and charged me for oil replacement instead of identifying the underlying defect. Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? Yes. The vehicle has been inspected by Hyundai dealers multiple times. I also have two inspection reports from the same dealer just two weeks apart with contradictory findings the first showing no oil issue, the second confirming oil contamination and failed oil pressure. Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? Yes. The oil warning light and check engine light have both come on. The vehicle has gone into limp mode, and symptoms have included shaking, misfiring, rough idling, and loss of power. These issues began months ago and have continued despite repeated service visits.

My Hyundai consumes oil and I have to put oil in it every two weeks! Also my ignition coils has had to be changed 4 times. Also check engine light just came on code saying catalytic converter or oxygen sensor changed oxygen sensor a couple months ago. I purchased it brand new and as soon as I got over 100,000 miles nothing has been going good since then please help also my paint on the top of the car is starting to peel. Will never buy a Hyundai again.

I am leasing a 2017 Hyundai Sonata from Car City in Michigan. In May 2025, the vehicle received a brand-new engine replacement due to previous problems. I picked the car up on [XXX], and on the same day, the vehicle began malfunctioning. It would not accelerate properly, jerked and stalled, and multiple warning lights — including the check engine light — came on immediately. This made the car unsafe to drive. I contacted the dealer, but they told me to wait until Monday to get it looked at, leaving me with a dangerous and unreliable car. The vehicle had already been in the shop for over two months for the engine issue, and I had only driven it for six months beforehand. I believe the repair or replacement engine is defective or was not properly installed. This creates a serious safety hazard. A car that stalls while driving puts everyone at risk. I am filing this complaint so this issue can be investigated and addressed if others are affected. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Engine started making a noise and then the car died and would not start. We were on the highway service road when the car died in the middle of the road. We took the car to the dealership and they confirmed the vehicle engine has seized up. This is covered under warranty. The manufacturer denied the claim because of a sensor recall in August 9, 2018. We purchased this car used on July 11, 2018 and never received the recall notification for this sensor. The manufacturer is refusing to repair the engine that is under warranty.

Purchased the vehicle and immediately noticed a drip in the driveway. I was concerned so I started checking the dip stick. I booked a diagnostic appointment with a Hyundai Service Center. I wanted to be sure I purchased a quality vehicle. Upon what i thought was a complete diagnostic, a cracked oil pan was discovered. I agreed to purchase and pay out of pocket, everything else had checked out. I was told I could drive while I waited for the pan to come in, service was scheduled. The car never made it back. I continued to check the dipstick but while driving on a very busy interstate, the engine light went on and lost power. I barely managed to get to the breakdown lane. A complete safety hazard. I was towed to the closest garage where the owner suggested he see’s 3-4 of these a week. He would not touch it, have it towed to Hyundai. I paid for another diagnostic and now a flat bed tow. Key Hyundai of Salem NH accepted the vehicle. I paid another $498 to have an “engine tear-down” send a detailed finding report to Corporate. I called Corporate and filled my own case number. I was denied by Corporate, I was told I was a subsequent owner. The dealership didn’t match, I’m denied because the engine didn’t seize because of Rod issue. Well Hyundai is praying upon consumers. They knowingly initiated the KDS Recall and installed sensors to place a vehicle in “Limp Mode” so the rod isn’t the issue and they deny coverage. I paid a private mechanic verify cylinder 3 has low compression. Had the car not gone into “Limp Mode” the rod bearings would have failed.

Premature rod bearing failure at 126,750. Dealer said there was extended warranty for this failure. Turns out that Hyundai denied this because they say Recall 953 was not done. This does not reflect what I show, I show this a Service Program and probably a notice does not get sent out. I have gotten an estimate for $7848.50 for engine replace. I do not agree with this decision since it is a know problem with multiple class action lawsuits.