Hyundai Sonata Complaints

17,026 consumer complaints on file.

#11711980January 19, 2026
ENGINE
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11711987January 19, 2026
ENGINE, FUEL/PROPULSION SYSTEM
This vehicle has experienced multiple hybrid system failures while driving, including a complete loss of power “Hybrid System Warning – Turn Engine Off” on the interstate in June 2022 through November 2025. These events have placed me and my loved ones in dangerous driving situations. Despite a warranty‑covered engine replacement at 82,015 miles (January 2023), the same hybrid system issues have recurred. Hyundai initially indicated a warranty claim was submitted, then told me there was no record of any claim in the system. The dealership claims it was denied — creating a serious inconsistency in communication and accountability. In addition, I have identified multiple NHTSA complaints in the database from other owners of 2016 Sonata Hybrids (VINs beginning with KMHE) describing similar highway shutdowns and hybrid system failures, which raise concern about a broader, unaddressed safety defect not currently covered by existing TSB or recall actions. I am respectfully requesting: A regional inspection and review of my vehicle prior to any further work. A review of Hyundai’s handling of this warranty claim and the discrepancy between dealer and corporate communication. Assessment of whether the hybrid system failures in KMHE‑prefix Sonata Hybrids warrant further safety action.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11711709January 18, 2026
STEERING, ELECTRICAL SYSTEM
Unknown, my ESP KEEPS Coming trying to see if it’s recall
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11711362January 16, 2026
POWER TRAIN, ELECTRICAL SYSTEM, ENGINE
While driving with my family on a busy freeway at approximately 70 mph, our vehicle suddenly displayed a loud, urgent warning: “Hybrid System Warning – Safely Stop and Do Not Drive!” At the same moment, the car lost the ability to accelerate without any prior signs of trouble. We were extremely fortunate to have enough momentum to coast to the shoulder and shut the vehicle off, unsure of how serious the issue might be. Being stranded without warning on a high‑speed highway put my entire family in a dangerous situation. After a few minutes, we restarted the car to see if we could at least get it off the freeway. The warning had disappeared, and the vehicle drove normally, allowing us to take back roads home. The lack of any prior symptoms makes this even more concerning. Losing acceleration at highway speeds with no warning is a major safety hazard. We took the vehicle to a dealership immediately, but because the warning light was no longer active, they were unable to diagnose the problem. A few days later, the same warning appeared again—this time only a couple minutes from home. I turned around immediately for safety, parked the car, and once again the warning disappeared as soon as the vehicle was shut off. At this point, we have a car sitting in our driveway that we do not feel safe driving. The dealership cannot identify or repair the issue unless the warning is active, & even then, they cannot guarantee that a diagnostic code will appear. After researching this problem online, it’s clear that many other Hyundai owners are experiencing the same issue, often spending thousands of dollars without a definitive fix. Despite how common & dangerous this problem appears to be, there are no recalls & no consistent guidance from dealerships. This situation is unacceptable from a safety standpoint. A vehicle that can suddenly lose power at highway speeds—with no warning and no reliable way to diagnose the cause—poses a serious risk to EVERYONE and needs to be investigated
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11711389January 16, 2026
ENGINE
My 2013 Hyundai Sonata (VIN: [XXX] , 2.4L Theta II GDI engine) is experiencing symptoms consistent with the known Theta II engine defects covered under prior NHTSA recalls (e.g., 17V-226) and the related class action settlement for connecting rod bearing wear due to manufacturing debris restricting oil flow. The vehicle has begun exhibiting [describe your specific symptoms here, e.g.: "a loud metallic knocking/tapping noise from the engine that increases with RPM, especially during acceleration or at highway speeds; reduced engine power and hesitation; illumination of the check engine light and/or oil pressure warning light; excessive vibration; or sudden loss of power/stalling risk"]. These issues have [escalated/worsened over time or occurred suddenly while driving]. This poses a serious safety hazard because premature bearing wear can lead to complete engine seizure or stall without warning while the vehicle is in motion, potentially at highway speeds, resulting in loss of motive power, inability to maintain speed, or increased risk of collision, injury, or fatality. I have properly maintained the vehicle with regular oil changes using the recommended full synthetic oil [add if true: "and can provide service records showing no evidence of sludge or neglect"]. Despite submitting an appeal/claim under the Hyundai Theta Engine Class Action Settlement (Case Number XXX), I received confirmation on December 30, 2025, promising a decision within 14 business days, but as of January 16, 2026, there has been no response or update despite follow-up attempts. This ongoing delay prevents me from obtaining the necessary inspection, repair, or replacement under the extended warranty/safety coverage, leaving the vehicle in a potentially unsafe condition. I am requesting that NHTSA review this as part of the pattern of Theta II engine failures in 2011-2014 Hyundai Sonatas, which have led to thousands of similar complaints, recalls, and investigations into untimely INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION AC
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11711495January 16, 2026
AIR BAGS, ELECTRICAL SYSTEM, STRUCTURE:BODY
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.
Crash:
Yes
Fire:
No
Injuries:
1
Deaths:
0
#11711574January 16, 2026
ENGINE
Engine losing power and metal shavings in oil and engining shutting off
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11711143January 15, 2026
ELECTRICAL SYSTEM, UNKNOWN OR OTHER
The shark fin antennae on top of the vehicle was ripped off in a car wash; the antennae serves to transmit radio/GPS/data to & from the vehicle which will cease to function if it the cover is removed and components damaged. Hyundai description: The shark fin antenna will receive AM, FM broadcast signals and transmit data Multiple Hyundai dealers have been contacted for quotes on replacing the antennae which they claim will cost $1500+ since the top of the roof must be removed and electronics/circuit board/cables must be replaced; it appears to be a common issue with these shark fins according to the dealers and online research. The GPS and data transfer could be a major safety factor depending on the systems affected. These shark fins need to be replaced with a more resilient system. Owners are unable to 'store' the antennae when taking it to the car wash as it is not removable or retractable. It is a design flaw. I've read that many have lost them simply driving the vehicle --not agitated using a car wash.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11711248January 15, 2026
UNKNOWN OR OTHER
Component or system involved and availability for inspection: The issue involves the transmission / drivetrain system. When I entered my VIN on Hyundai’s official dealership website, a safety recall related to the transmission appeared. I took a screenshot of this recall. When I later contacted Hyundai Motor America and spoke with my assigned case manager, I was told that no such recall existed for my VIN. A few days after that call, the recall no longer appeared when checking the VIN online. The vehicle is available for inspection upon request. How safety was put at risk: A transmission-related safety recall presents a risk of loss of power, inability to accelerate, or sudden mechanical failure, which could increase the risk of a crash, especially during normal driving conditions such as merging, accelerating, or driving at highway speeds. The uncertainty and inconsistency regarding whether a safety recall applies to my vehicle has put my safety and the safety of others at risk. Confirmation by dealer or service center: The problem has not been repaired by a dealer, as Hyundai denied that a recall existed despite it previously appearing under my VIN on their official website. Independent service centers that recently serviced the vehicle did not identify or report any transmission warnings or failures. Inspection by manufacturer or others: The vehicle has not been physically inspected by Hyundai for this recall issue. My only interaction with the manufacturer was a phone call + email with a Hyundai case manager, who stated that no recall applied to my VIN. Warning lamps, messages, or prior symptoms: There were no warning lights, messages, or symptoms prior to this issue. The vehicle recently received routine maintenance, including an oil change, tire balancing, and tire rotation, and none of the service providers reported any problems or concerns related to the transmission or overall vehicle condition. I am 34 weeks pregnant with no way to the hospital.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11711052January 15, 2026
FUEL/PROPULSION SYSTEM
My 2022 Hyundai Sonata Limited had a recall issued on the vehicle. I took my vehicle to a dealership and the recall issue was taken care for my fuel tank. Months after this issue was supposedly resolved, my fuel tank exploded and the car has been totaled.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11710970January 14, 2026
ELECTRICAL SYSTEM, ENGINE
While driving, vehicle slowed down abruptly and stopped. It was flashing “vehicle not safe to drive”. This happened before hen I got a new engine 2 years ago. Even with a new engine now it is happening again. I took it to Nissan Moreno Valley and paid $240 for diagnostic only to find out there a software update they had to do with a tablet. No work needed to be one just a software update hooked up to their system. Hyundai cooperate would not assist to over this fee. I like have crashed with this happening. The car just stops with no warning and it’s extremely dangerous how it cuts off while driving. Luckily I was on the streets not freeway.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11711025January 14, 2026
ENGINE
on the day of Friday may 16, 2025. I was returning from work on 35 going south in Dallas, Tx. the engine seized leaving my vehicle in a neutral state. I was in the furthest left lane(passing lane). Lord willing I had enough motion to safely exit on Illinois ave without injury of myself or others. the starter could no longer turn the flywheel indicating to me that the crank shaft had seized. i inspected the oil; it was low but no warning light ever came on(the dealer recently stated the oil was fine when they performed a multipoint inspection(5/10/25) when I went in for the gov mandated theft software update as my car had recently been attempted to be stolen), no sort of warning light came on, nor did the ksds update do anything just like countless other kia/hyundai owners who's engine seized on the interstate. I towed the car to clay Cooley Hyundai Dallas because my research indicated that theta 2 engines had government mandated extended warranty even for subsequent owners however as I didnt drive it often & had only replaced the oil(I change every 3k and was soon to do another) once, because I've only owned car for around 6k miles(purchased 10/30/24 I think)before it seized. Hyundai denied txxi claim, stating engine didn't seize due to connecting rod bearing failure, further stating, it was neglect. they said my valve train look terrible. well its going appear so as the theta 2 was inherently known for poor oil flow, major oil consumption, rough crankshafts & improper deburring, all of which lead to premature ware of internals&seizing. also they stated there weren't enough oil changes on the carfax in general, well not all shops report auto service so there isn't going to always be records. furthermore they were failing even in the range of 25k-60k, indicating they were still failing with records of timely service. to my knowledge they didnt perform what I believe they're Mandated to do i.e vid/pic evidence that they cant turn the crank, a bct test, oil level etc.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11710623January 13, 2026
ENGINE
The contact owns a 2011 Hyundai Sonata. The contact stated that while driving approximately 30 MPH, the vehicle unexpectedly lost motive power. There was no warning light illuminated. The vehicle became inoperable and could not be restarted, and the vehicle was towed. The vehicle was towed to a dealer, where it was diagnosed with engine failure. The dealer stated that the failure was related to a previous recall associated with the VIN; however, the recall number was not provided. The dealer informed the contact that the engine needed to be replaced. The vehicle was not repaired. The contact was referred to the manufacturer for assistance. The manufacturer was notified of the failure but denied coverage for the repair and alleged that the engine failure was a result of negligence in the maintenance records. The approximate failure mileage was 183,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11710629January 13, 2026
FUEL SYSTEM, GASOLINE
The contact owns a 2023 Hyundai Sonata. The contact stated that while driving at an undisclosed speed, the check engine warning light illuminated. The vehicle was taken to the dealer several times, and the dealer reset the check engine warning light. In addition, the vehicle remained with the dealer for 32 days but was not repaired. The vehicle was not repaired, and the failure reoccurred. The contact received notification of NHTSA Campaign Number: 25V796000 (Fuel System, Gasoline); however, the parts were not available for the recall repair. The manufacturer was made aware of the failure. The contact was informed that parts were not yet available. The failure mileage was approximately 28,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11710370January 12, 2026
UNKNOWN OR OTHER
CRUISE controldoesnt work due to design defect dirt getting in and stopping the function.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11710420January 12, 2026
AIR BAGS
UNKNOWN - I noticed DASHBOARD crack over time and the AIR BAG light remain on at all times. The AIR BAG light on the passenger side shows OFF. The entire dashboard is cracked. I fear that I can no longer drive my car distances due to air bag issue. I did not report the issues to a dealer yet, I was waiting until next oil change time. I do not know the date that it started.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11710482January 12, 2026
AIR BAGS
Our 2012 Hyundai Sonata (VIN [XXX] ) has experienced several cracks in the dashboard area of the vehicle. We know this is a reported common problem with this vehicle and some information says its related to both heat and sun exposure. However, my wife has always used sunshades everywhere she travels and the car has been parked in the garage when its not in operation. We are also concerned that this could be a safety issue if the air bag ever deployed in an accident. The dealership where we purchased and Hyundai Corporate have denied our claims. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11710434January 12, 2026
ELECTRICAL SYSTEM, EXTERIOR LIGHTING
The exterior lights such as head lights and brake lights aswell as all interior electronics shut off at random intervals while driving posing a serious danger early in the morning and at night.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11710169January 11, 2026
ENGINE
The engine failed in my 2014 Hyundai Sonata for the 2nd time while driving in evening traffic on a major interstate with my elderly father in the car with me. The engine completely shut down while in mid drive on the interstate with no power. The engine and oil lamp indicators immediately came on right before the engine lost power on the interstate. This caused my safety and the safety of my father to be put at risk by not being able to have any power while in the lane of evening traffic. My vehicle was towed to the nearby Hyundai dealership, Modern Hyundai of Concord, where their service department conducted inspection of the engine issue and where it was kept for 4 months with no repairs made per the orders of Hyundai Motor America. Hyundai Motor America refused to honor their own warranty to replace the engine (engine in need of replacement for the 2nd time).
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11710253January 11, 2026
AIR BAGS
The three airbags in the car (on the driver's weel, driver's knee, and the passenger's side) deployed while driving on a normal street at a speed of 50 miles/hour. This is an unexpected behavior of a car at a normal speed. I need help to fix this car and know what is the reason this happened.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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