Hyundai Sonata Complaints (2017)

881 consumer complaints on file.

#11671343July 5, 2025
ENGINE
I am writing to request your assistance in enforcing the terms of the class action settlement and extended warranty coverage for my 2017 Hyundai Sonata (VIN: [XXX] ). Despite clear evidence of a defective Theta II engine, Hyundai Corporate has refused to authorize a full engine replacement unless the engine “blows” completely. This directly conflicts with the express terms of the “In re: Hyundai and Kia Engine Litigation” settlement, which requires Hyundai to cover any engine exhibiting failure‐mode symptoms. Below, I have summarized all relevant facts, diagnoses, and correspondence. I purchased this Sonata used from Oakes Kia (Kansas City, MO) in May 2023. At the time of purchase, the vehicle had 77,000 miles. To my knowledge, I am the third owner of this vehicle. Since I bought this car, I have followed the manufacturer’s recommended maintenance schedule: All routine oil changes (every 5,000 miles, or sooner) at Oakes Kia, plus one oil change at Northtowne Hyundai in April 2025. The engine currently has approximately 98,650 miles. I have driven it about 1,000 miles since December 2024 to avoid further damage and due to the danger, it puts me and others in on the road. Since December the vehicle has had persistent shaking, hesitation on acceleration, strong odor, and illuminated Check Engine Light. Car condition has worsened since last oil change and even after coil packs and spark plugs were replaced, there was no improvement. The last oil change was done at Oakes Kia along with a tire rotation and multi-point inspection. They Installed UM018 CH074: Mobil SP 5W30 SN, 21513 23001: Gasket-oil plug and 26300 35505: Filter assy-engine O Service Advisor, Fernando Perez said they did not identify root cause of the shaking, hesitation and strong odor; they instructed me to return to the mechanic who had replaced spark plugs/coil packs, possibly I got a bad spark plug or coil pack. I did this, it was not the problem. I have files to share but they are too big! INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATIO
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11671367July 5, 2025
STEERING, ELECTRICAL SYSTEM, UNKNOWN OR OTHER
Steering wheel warning light comes on traction control light comes on. Steering becomes difficult
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11669046June 24, 2025
ENGINE
I purchased this car in 2018. Noticed it would be low on oil frequently by year one of having it I took in in for regular maintenance at the dealer by year 2 car began giving me more issues with oil and engine I have had the manifold replaced and other parts in the engine several times and keep running into the same issues and from what I found out I’m not the only one dealing with oil consumption issues I was told by the dealer this is a regular issue with this car and that Hyundai will not cover it I feel it’s very unfair to the consumer that they did not disclose this to me when I explained I needed a dependable vehicle because I had a disabled child I have put so much money in this vehicle I could have bought a new one by now
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11667237June 16, 2025
ELECTRICAL SYSTEM:INSTRUMENT PANEL:SPEEDOMETER/ODOMETER
Odometer Fraud. The contact stated that while attempting to purchase a 2017 Hyundai Sonata Hybrid, it was later discovered that there was a mileage discrepancy. The vehicle was not yet purchased. The vehicle mileage was 87,000, but the contact later discovered that the mileage was 105,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11666119June 10, 2025
ENGINE AND ENGINE COOLING
The contact owns a 2017 Hyundai Sonata Hybrid. The contact stated while driving at various speeds, the contact noticed an abnormal ticking sound coming from the engine. There was no warning light illuminated. The vehicle was taken to the dealer, where it was diagnosed with engine failure due to the rod bearings failure. The dealer determined that the engine needed to be replaced and informed the contact that the repair was not covered under an unknown recall due to the mileage. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 183,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11664715June 3, 2025
ENGINE
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11662934May 24, 2025
UNKNOWN OR OTHER
My car is burning a lot of oil to the point I have no oil in my car and that’s bad
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11662348May 21, 2025
ENGINE
2017 Hyundai Sonata having severe oil consumption issue. Having to top off with a quart of oil every 500 miles. Was purchased last June and has been a nightmare since. We contacted Hyundai consumer affairs and they opened a case and made an appointment for us to go to a local Hyundai dealer. The dealership told us we didn’t qualify for oil consumption test be cause we are second owners and the vehicle had 62,000 miles on it. We did purchase an extended warranty when we bought the car but they won’t cover oil issue. Local mechanic won’t touch it and refers us to Hyundai dealer. Just getting so frustrated and worried about car safety and engine damage. I read on another sit that Hyundai issued an oil consumption recall in 2025 but our vehicle is not listed. Please help us.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11659977May 9, 2025
STEERING
Driving the vehicle, I was turning right on exit , the steering wheels turn extremely hard. It turn so hard have to pull over on side of the road. Steering light and traction turn on. Cycle the key and vehicle reset light nothing happen. Vehicle do not give fault code after key was cycle.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11660045May 9, 2025
STRUCTURE:BODY
My car was recalled because of the paint chipping. I had it fixed however it is still chipping in more spots. I'd like it fixed considering I have paid over $27,000 and still owe $12,000 more. It would be nice to still have a decent car after I finally pay it off. I'd appreciate the help.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11659540May 7, 2025
STRUCTURE:BODY
Hood latch won’t latch and hood opens while driving.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11658413May 2, 2025
ENGINE
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11657846April 30, 2025
ENGINE AND ENGINE COOLING
The contact owns a 2017 Hyundai Sonata. The contact stated that the engine was consuming an excessive amount of engine oil. Additionally, the engine was leaking oil onto the ground, and smoke was coming from the engine compartment while driving. The vehicle was taken to Walmart for an oil change. The contact stated that after the oil change the engine consumed two and a half quarts of oil after driving a thousand miles. The vehicle was taken to the dealer, who performed an oil consumption test, and the engine passed the test. The vehicle was not repaired. The contact stated that the failure persisted. The manufacturer was made aware of the failure and a case was filed. The failure mileage was 92,672.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11656611April 24, 2025
STRUCTURE:BODY
My paint is peeling and bubbling all over the car. The paint is chipping in multiple places.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11654275April 12, 2025
ENGINE
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11653787April 9, 2025
ENGINE
Engine burning oil like crazy never had to put so much in for any other car. Risk of engine lock without enough oil also sets of the knock sensor. Every time I get an oil change they let me know that I’ve burned most of my oil and that it’s low so I just started doing my own oil topping it off. Problem has been ongoing since I got the car.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11653241April 7, 2025
ENGINE
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11652741April 4, 2025
ENGINE AND ENGINE COOLING
The contact owns a 2017 Hyundai Sonata. The contact stated while the vehicle was stationary, the vehicle experienced an excessive oil consumption. The check engine warning light was illuminated. The contact stated that the vehicle required an additional quart of engine oil monthly. The vehicle was taken to the dealer, where it was diagnosed with excessive oil consumption. The dealer determined that the engine needed to be replaced and the repair would be out-of-pocket. The vehicle was not repaired. The manufacturer was made aware of the failure and referred the contact to the dealer for assistance. The failure mileage was approximately 93,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11652785April 4, 2025
ENGINE
I am seeking a resolution to the concerning and potentially dangerous issues that I have experienced with my vehicle. I got it from Carvana Dec 2023 and only had it for a year, and I’ve only drove 19,000 miles on it before my engine cut off on me while on the highway. I was going 70 mph when the safety of my life was at risk. After, I tried to send it to the dealership, they let my car sit for a month before even looking at it, they couldn’t tell me because they let it die. My car was completely off. So i got no full diagnostic. I have personally endured the traumatic experience of my engine suffering catastrophic failure. Also, my vehicle was consuming oil at an alarming rate, necessitating frequent and costly refills. I would sometimes even go 500 miles before the due of an oil change and would be told that my oil is very low. I believe that these problems should not be considered normal wear and tear. The hybrid sonata 2017 had a engine recall and so should the sonata 2017 limited 2.4L.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11652464April 3, 2025
ENGINE
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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