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.
2017 Hyundai Sonata engine complaints
Page 3 of 15: complaints 41 to 70 of 403, newest first, as owners wrote them.
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.
Car consuming EXCESSIVE Oil. Oil changes went from lasting 6-7k miles, to less than 4k miles, to less than 2k miles within a year. Checked for leaks, nothing found. Here is the breakdown, I added more oil when the oil lights would flash on. : 12/06/24 FULL OIL CHANGE Mileage: 80,735 6/11/25 FULL OIL CHANGE 86,164 miles 10/6/25 1 qt  89,000 miles 10/10/25 FULL OIL CHANGE 90,121 miles 1 qt 11/30/25 91,550 miles 1 qt 12/11/25  92,700 miles Hyundai is AWARE that this is an ongoing issue - they should legally be required to fix this whether a car has a warranty or not. Bad for the engine and engine replacements aren't cheap
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.
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 INFOR
e vehicle is burning approximately 2 quarts of oil every month with no external leaks. This indicates severe internal oil consumption, which is a known defect in Hyundai’s Theta II 2.4 GDI engines. I discovered oil inside the VVT solenoid electrical connector and on other wiring, which shows oil is traveling through the engine harness. This causes hesitation, rough running, and the risk of sudden engine power loss. The vehicle feels unsafe to drive because the oil level drops quickly, and the engine could seize or stall while driving. Hyundai vehicles of this generation have a history of excessive oil consumption, piston ring failures, and engine fires, and I believe my vehicle is experiencing the same defect. This is a serious safety concern.
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 INFORMA
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.
Engine is burning oil. Ticking sound when engine is idling.
My car started using a lot of oil,one day it just started jerking and lost speed had to change the spark plugs after that I was constantly putting oil in it and changing the spark plugs every 2 weeks
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
The contact owns a 2017 Hyundai Sonata. The contact stated that the engine was consuming an excessive amount of engine oil. Upon inspection, the contact noticed that the engine oil level was low after an oil change. The contact stated that three quarts of engine oil were added every two to three weeks. The vehicle was not diagnosed or repaired by an independent mechanic or the dealer. The manufacturer was not made aware of the failure. The failure mileage was approximately 114,606.
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.
Having engine issues with Hyundai Sonata (2017) have taken to dealership for repairs since purchase of vehicle (used) in August 2019. Vehicle available for inspection. Safety of others as well as self by engine failure while refueling, causing driver to be unable to move vehicle. Engine problem confirmed at dealership in April 2025. Issue addressed with Hyundai National Consumer Affairs to seek adequate replacement of engine and components. On 14 May 2025, request was denied. Check engine lamp illuminated on 1 March 2021 the 1st time, 5 June 2023 for 2nd time and 21 April 2025 for the 3rd and final time.
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.
I noticed my oil was pretty much empty at one point. I don't know how long it had been empty but I had been driving the car for a long time. But I usually do my oil changes every 5000 miles so the fact that the oil was empty is definitely not a good sign. I did an oil change and replaced the drain plug in case that was the issue. I checked for leaks and there weren't any. After probably a couple thousand miles, the oil was out again. I took it to a dealership and the guy at the service desk said "I shouldn't tell you this, but a lot of them have that problem. You should get rid of it before the engine fails." Hyundai knows that it's an issue but they refuse to fix it or do a recall. It consumes oil like crazy and there's even a Facebook group called Hyundai oil consumption recall with about 5000 people in it. If the oil in the engine drains to empty, the engine could seize up and put people in danger. No warning lights have come on when the oil has run out.
MY 2017 Hyundai Sonata has excessive engine oil consumption. Despite multiple inspections and tests performed by Hyundai dealerships in 2023, as well as PCV replacement by a licensed independent mechanic, the vehicle continues to consume approximately 1 quart of oil every 60-100 miles. No warning lights appeared, but this persistent consumption created a safety risk ,as low oil levels can lead to engine damage or failure while driving, endangering myself and passengers, and others on the road. The issue has been confirmed through oil consumption tests at Hyundai dealerships, and it remains unresolved despite attempted repairs. The problem is verifiable and reproducible through oil level checks and documented service history.
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.
Hyundai oil consumption recall. My 2017 hyundai sonata burning oil I constantly schedule oil changes. When will notice for repair be sent to my address to fix this issue. My daughter drives this vehicle also. Serious issue needs to taken seriously.
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.
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.
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.
My 2017 Hyundai Sonata SE is experiencing symptoms consistent with connecting rod bearing failure covered under Hyundai’s KSDS extended warranty program. June 22, 2019: KSDS software (Campaign 953) installed, qualifying the vehicle for Hyundai’s 15-year/150,000-mile warranty coverage for bearing failures. August 2022: Campaign 208 engine recall performed. Hyundai’s record shows Aug 15, 2022, while Wright Way Hyundai’s service history shows Aug 13, 2022 (discrepancy unresolved). March 2025 (100,238 miles): Vehicle went into limp mode with tailpipe smoke and loss of power. It was towed to Wright Way Hyundai, which kept it for several days but returned it with “no issue found.” The smoke continued. June 5, 2025 (103,996 miles): Oil change performed. August 27, 2025: Oil light illuminated, dipstick showed no oil. Vehicle now exhibits severe drivability issues consistent with bearing damage. Hyundai has incorrectly tried to reframe this as an oil-consumption issue and directed me to pay $600 for a combustion chamber cleaning. My issue is not oil consumption — it is a bearing-related failure already covered by warranty. Hyundai’s obligations include a no-cost inspection/diagnosis for connecting rod bearing failure, yet I have been denied that process. Despite repeated written requests, Hyundai continues to attempt phone communication instead of email, even addressing me by the wrong name in correspondence, which suggests reliance on standardized or generic responses. I have exclusively maintained the vehicle at Wright Way Hyundai, following Hyundai’s service schedule. I am resorting to filing this complaint because after weeks of email correspondence, Hyundai’s corporate agent refuses to help and the manager insists on only calling by phone — which I will not answer out of concern they will attempt to mischaracterize or dismiss my complaint verbally. This failure poses a safety risk because the vehicle has lost power suddenly and requiring restart.
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.
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.
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.
Oil consumption, lossing one quart of oil per week, I drive 250 miles per week.
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.
The camshaft position sensor internal rubber plug is faulty and it allows oil to leak into the sensor housing. Ruining the sensor and the brushes and housing. It causes the check engine light to come on the idle races and car takes off on its own. Can’t drive it because it’s to dangerous. Once it takes off then it goes into limp mode and you can’t pull out because of no power. 40000 miles. The internet is full of owners having the same problem
Engine is burning up full tank of oil in a few days there are no oil leaks coming from the car. The car has been expected and worked on by multiple mechanics. The engine lights keeps coming on.
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