general problems of the 2017 Hyundai Sonata - part 2

What component or system failed or malfunctioned, and is it available for inspection upon request?\n' + 'the engine in my 2017 Hyundai Sonata is defective. It burns oil excessively, fouls spark plugs and ignition coils, and causes continuous misfires. The engine is still in my possession and available for inspection. \n' + 'how was your safety or the safety of others put at risk?\n' + 'the engine misfires cause my car to shake violently while driving, lose power unexpectedly, and turn on the check engine light. This creates a risk of stalling or losing control while driving at highway speeds, endangering myself and others. I no longer feel safe driving the car. \n' + '\n' + 'has the problem been reproduced or confirmed by a dealer or independent service center?\n' + 'yes. Multiple independent mechanics have confirmed that the misfires and repeated spark plug/coil failures are caused by the engine itself, not just normal wear. Hyundai dealers acknowledged the excessive oil consumption and advised combustion cleanings, which did not resolve the issue. \n' + '\n' + 'has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others?\n' + 'yes. The vehicle has been inspected by multiple Hyundai dealerships (including mcgrath Hyundai) and independent service centers (pep boys, aamco, and others). All noted ongoing oil-related issues and repeated failures tied to the engine. \n' + '\n' + 'were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear?\n' + 'yes. The check engine light has come on repeatedly over the last two years. Symptoms include rough idling, heavy shaking, loss of power, and repeated ignition coil and spark plug failures (monthly or more often). The problem began within the first year of ownership and has persisted ever since despite repairs.

All documents are attached as it is many separate incidents that ended knock from motor and minutes later, a piston shooting through the engine block which is what made the car inoperable.

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.

Engine seized on me, lurched forward, then engine light starting flashing and I could barely accelerate anymore. Had to go very slowly to make it home. My local autoshop says this is very common with Hyundai's and there was a recall for bad engines for this.

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.

The engine was eating up oil and failed. I have regularly had to get oil changes within 1000 miles of each other. Kept oil in my car like spare gasoline to top off every 4-7 days. Took my car in immediately when the check engine light came on to which the dealership said I have been negligent in my oil changes. The check engine light never came on prior, and I had an oil change the day before it did come on. It put my safety at risk because the engine could have just burst at any moment, and to my knowledge nothing was wrong since I was regularly putting oil in or getting an oil change. Yes the issue has been confirmed by the dealership. There was no warning other than the low oil light continuously coming on. I took it into the dealership last spring to which they said there was no issue.

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.

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.

The car went into limp mode activated by the knock sensor. Audible knocking noises were emitted. Hyundai dealership replaced knock sensor. Car drove 63 miles before knocking noise repeated and car went into limp mode. Hyundai dealership requested new engine as problem is covered by extended warranty for known issue. It has been declined by corporate office. Car is at dealership and unsafe to operate.

The 2017 Hyundai Sonata 2. 4l excessively consumes oil. I constantly put oil in my car. My fear is that I will have a critical engine failure during commute and will be fully responsible for replacing the engine even though Hyundai motors designed a poorly built engine. Every time I search google about the make and model it is always hundreds of other Hyundai Sonata owners with the same problems and fears that their car will break down or have already had their engine replaced. I would like to see an investigation take place on the 2017 Hyundai Sonata 2. 4l engine. It is poorly designed and consumes more than enough oil in a short amount of time to cause engine failure.

The check engine light light is on now giving code p200a I was driving and the center console shut off and the engine died I had to pull over and start the car again it started but the check engine light light is on now for a p200a I’ve looked it up and everything I can find says there is a recall but my car isn’t in it so what can I do I don’t want to cause a fire or an accident because my car messed up o. Me.

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.

This is the third time after 3 “repairs” that I have had my car at the dealer in less than a year. Car went into “limp” mode while driving down the highway causing car to stall and not go over 20 mph. First time they said it was a technical update needing done. Second time said low battery power causing issue so I purchased $300 battery from dealer and now showing cylinder 4 misfire and recommend replacing spark plugs and oil combustion testing due to having to add 3 quarts of oil every 230 miles due to excessive oil consumption. Dealer said this will not fix the issue however so why would I pay to have it done if it won’t fix the issue. Luckily these three incidents of engine power loss hasn’t caused me to have an accident but what if in 3 months and my engine loses power without warning for the 4th time in a year it dies cause an accident. I have a case open with Hyundai but am getting nowhere. I feel like a measly engine replacement would cost less than it will cost if this causes a major accident soon.

Excessive amount of oil burning. Was told that this vehicle had a engine recall, and I am trying to see what I can do about it before it blows up.

Fail/malfunction 3/18/internal engine failure diagnosed by local avondale, az Hyundai dealership service - rod bearing failure suspected. Vehicle currently undergoing bearing clearance test to affirm this or any connecting rod issues, with possible need for total engine replacement. When googling "Hyundai Sonata hybrid 2017 internal engine failure," masses of reports generate from consumers with this model, complaining of same defect, as do numerous recalls for such defects that have been mandated for the model with range of years including 2017. Yet when searching with my VIN, it says no recalls have been mandated, in spite of the undeniable, widespread identical defect. Available for inspection. Safety risk: driving on the freeway in city traffic at 70-75mph, the engine completely stopped and all dash lights lit up at once. Vehicle had to be coasted to shoulder to wait for roadside assistance. Extremely hazardous to us in vehicle and to all around us with sudden, dramatic speed change in moving, constant freeway traffic. First time: our usual mechanics at pep boys did diagnostic but found nothing, the vehicle drove normally for them, yet they did our regular tune-up, oil change, etc. Two weeks later, the same event happened on freeway, identical to first time. We were very lucky that no crashes happened either time. Pep boys advised that Hyundai investigate the issue. Prior symptoms: no warning lights or sounds presented until the events themselves, when the entire dash lit up. However, in the couple of months before, there were occasional, slight hesitation moments in the motion while driving at any speed. Concerns: 1) it seems Hyundai is on track to want to charge me for an entire engine replacement, or for whatever engine repairs they deem, e. G. Connecting rods, for manufacturing defects that they are entirely responsible for, 2) no recall seems to be mandated yet for this VIN batch, and 3) too many consumers are in danger - physically and financially.

My Hyundai Sonata sport had a manufacturer defect causing oil consumption. When my engine starting having issues they replaced it for free. I got it back and the engine light came on so I called they ask me to bring it back and I did. They told me the code was a po326 powertrain control module or faulty knock sensor. They said the code was a history code and they cleared it out drove it and the light did not come back on. I picked it up drove it and the light came back on. I called they said bring back again and before it could get it back over there the transmission went into limp mode or safety mode. They said my transmission was gone and needed a a new one. $4385. 44. I wasn't having any issues before the engine replacement. All other mechanics think something happened when the replaced the engine. I just dont want to be taken advantage of. Long Hyundai chattanooga tennessee.

Car has been burning oil since September of 2024. It’s burning 2 quarts of oil every 500 miles. The oil is burning out spark plugs and coils every 3 months. These engines need to be recall and Hyundai needs to be held accountable.

I was driving on highway when all of sudden my vehicle began to shake hard and lose power, every time I stepped on the accelerator the check engine light came on, this happened on February 22,2025 in los baños, CA. My safety was at risk as all other traffic was going past me including semi trucks as I was trying to find a safe place to pull over out of harms way, as I was doing this the car shut off completely before I could even pull over. I had to get the vehicle towed to my local dealership where they had it for almost 3 weeks now, only diagnostic I’ve had back was that it has 2 misfires, one in cylinder 2 and the other in cylinder 4, and that it has no compression in cylinder 2. They said it isn’t covered under warranty which I believe should be looked into as I could of been serious hurt or lost my life due to this issues. I’ve had the vehicle serviced up to date since I’ve owed it and also noticed high oil consumption, not sure if this led to engine failure? the final diagnosis from hyandai dealer is that engine is no good anymore and need replacement but it’s not covered under warranty.

Every few months my car’s engine struggles. It doesn’t start, or I have to try a few times. For whatever reason I need to get an oil change a lot more frequently than normal and I’ve been to the shop before and the shop tells me that my engine is recalled but it doesn’t say that on the website when I put my VIN number in. Whenever the engine stops working again sometimes the ac doesn’t work and it almost put my dog’s life at risk once.

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 writing to file a formal safety complaint regarding my 2017 Hyundai Sonata which suffered an unexpected engine seizure on January 22, 2025, while my daughter was driving. The incident occurred without warning and left her stranded in a hazardous location, putting her in immediate danger. This appears to be part of a wider, documented issue affecting Hyundai vehicles. My understanding is that engine failures—particularly in Sonata models—have been the subject of recalls and class action lawsuits. However, Hyundai motor America has refused to replace or repurchase the vehicle. Instead, they replaced the engine with one that now carries less warranty coverage than the original (12,000 miles vs. 26,000 miles remaining). Since the engine replacement, the vehicle has presented new problems, and now needs a new battery after sitting on the lot for so long. Hyundai has failed to offer meaningful support, leaving my family without a reliable vehicle for over two months. Hyundai has refused to replace or repurchase the vehicle, and I am now stuck with a car I cannot drive, cannot sell (due to the engine failure now reported on carfax), and cannot rely on to safely transport my daughter. I believe this represents not only a serious safety risk, but also a pattern of negligence that could affect other drivers unaware of the risks. I respectfully request that NHTSA investigate this issue further and consider expanding oversight into Hyundai’s handling of these engine failures. I am available to provide full documentation, service records, and communication history.

The vehicle had a recall to replace the motor for bearing failure. They replaced my motor at 101,000 miles. The second motor than failed for the exact recall of bearing failure at 65,000 miles on the new motor. They told me that since I had already have done the recall and my car was now out of warranty that I would have to pay 10% of the repair bill for another motor. This second motor should have been included in that recall.

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.

Unknown. . . I recently got an oil change and not even a week later my oil light came on. There's no leaks, I've been to midas several times and no leak was found. Was told to check to see if it had any recalls, my VIN doesn't produce a recall but I know there's something wrong with my car.

My car stayed with up to date oil changes and everything. One day I noticed it was leaking oil and had to stay on top of adding oil. When took to a mechanic they said my motor was blown and needed a new one. I took very good care of this car and it’s crazy that I need a new motor after babying the car.

Driving home car just shut off still had power to steer and brake but no engine. Pulled it off the main road and it leaked oil but still no engine. Already had the dealer replace the intake manifold at my expense despite Hyundai knowing the plastic lever inside fails. We were lucky the snowplow was going the opposite direction as the weather was horrible as we got closer to home. I have a dead car in my yard waiting to have a dealer look at it. We could have been killed due to fault of engine.

The engine started knocking while I was driving around a lot of cars and while I was going to autozone to see why the check engine light was flashing on my car wouldn't accelerate and randomly started stopping and I was fearing for my life when I was going on the highway to go back home. For almost a year now I noticed the oil in my car started burning more and more like I would only drive 1k miles and it would already be done with, so I had to replace it. Hyundai knows this is a problem with this car because I called and asked them about the oil and told me specifically it's an engine problem once it starts knocking then you can come fix your car but want me to pay and fix the whole engine and work process.

The contact owns a 2017 Hyundai Sonata. The contact stated while on travel, the contact stopped at a local gas station. The contact stated while vehicle was parked, the contact was informed by the store attendant that the vehicle was on fire. The contact noticed the fire came from under the hood compartment and the vehicle was engulfed with flames. The contact stated an off duty police officer attempted to extinguish the fire with a fire extinguisher, however the officer was unsuccessful. The fire department was called and arrived on the scene, and extinguished the fire. The vehicle and all properties in the vehicle was completely destroyed in the fire. The vehicle was towed to a local tow yard. The vehicle was condemned total loss by the insurance company. A police report was filed. In addition, the contact stated that 75 miles prior to the fire occurrence, the vehicle was started, and the contact noticed white smoke exiting from under the hood compartment. The contact interpreted it to be frost from the start of the engine being cold. The dealer was made aware of the failure. The manufacturer was not made aware of the failure. The failure mileage was approximately 90,000.

The contact owns a 2017 Hyundai Sonata. The contact stated that within a two week period she has add to add 2 quartz of oil in the engine though she has yet to observe an oil leak. The check engine warning light was illuminated. The vehicle has was not taken to a dealer in independent mechanic. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was 161,000.

The makes a weird shutter noise when accelerating and won't crank over 60. Loses power when turning or when going uphill. Sometimes has problem starting. Enging light came on twice blinking, once I changed the battery it went off and was working fine. Now it's back on again after a few weeks. Plus my oil tank still comes on and I've just received and oil change. I just bought the car in August of this year, dealership sold to me with a faulty battery.

Car just sputtered and then the engine stopped working in cyclinder 2.

I am writing to request a goodwill replacement. My car is burning oil faster than I can put it in. The engine heats up so bad that I feel it could catch fire at any time. I loose acceleration because of this, its an extreme safety hazard for myself and other motorists on the road. I am just now finding out about the issues Hyundai Sonatas are having with this said problem. I would like it fixed ASAP.

The engine is losing oil at a much higher rate, causing a knocking sound. Not accelerating at it should without the sound getting louder and hesitating. This vehicle has been inspected by a licensing mechanic ( goodyear). The check engine lights and multiple codes have appeared while driving for about the last 4-5 months.

Motor burning oil with no leaks causing it to need replaced, with out any reasoning.

The contact owned a 2017 Hyundai Sonata. The contact stated while the vehicle was parked, the contact noticed smoke was coming from the engine compartment. No warning light was illuminated. The contact exited the vehicle and discovered that the engine compartment was on fire. The vehicle was not occupied during the fire. The local fire department (cuyahoga heights fire department) came and extinguished the fire; a fire department report was filed. A police report was not filed. The vehicle was not drivable and was diagnosed as totaled. The manufacturer was notified of the failure. The failure mileage was approximately 90,500.  .