Hyundai Sonata Complaints (2017)

881 consumer complaints on file.

#11705570December 17, 2025
ENGINE
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
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11703779December 8, 2025
STEERING
The contact owns a 2017 Hyundai Sonata. The contact stated that while driving 10 MPH in a parking lot, the steering wheel seized. The contact was unable to turn the steering wheel. The vehicle was restarted. The vehicle became sluggish and snagged while driving to the residence. The steering wheel symbol in red was displayed on the instrument panel. The local dealer was contacted, but the vehicle was not diagnosed or repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 59,011.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11703459December 6, 2025
ENGINE
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11703144December 5, 2025
AIR BAGS
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)
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0
#11702016November 29, 2025
ENGINE, ELECTRICAL SYSTEM, POWER TRAIN
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11702027November 29, 2025
ENGINE
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
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11702030November 29, 2025
ELECTRICAL SYSTEM, SERVICE BRAKES, STEERING
While traveling 40 mph, car flashes a warning, "Check Hybrid System", and then the car shuts off. No power steering and brakes are difficult. The warning is only 3-5 seconds before everything shuts down. This is definitely a hazard to myself and others. If in traffic at higher speeds, there would certainly be an accident with devastating results.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11701828November 27, 2025
STRUCTURE:BODY
1. Sunroof frame detached from car due to defective adhesive. (Antena tailfin also detached from car years earlier because of defective adhesive). Because of this the frame was bent causing the sunroof to disengage from car . 2. Sunroof disengaging while on Interstate could have causes an accident or harmed person in car. A recall was placed on 2016 HYUNDAI Sonatas due to sunroof. 3. Unknown 4. HYUNDAI hired an engineering firm. The firm ( which was paid by HYUNDAI) found in favor of HYUNDAI. 5. Unknown
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11701235November 24, 2025
ENGINE
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
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11700547November 20, 2025
ENGINE AND ENGINE COOLING
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11700453November 19, 2025
TIRES:SIDEWALL, TIRES
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
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11698746November 11, 2025
ENGINE
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
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11698796November 11, 2025
ENGINE
Engine is burning oil. Ticking sound when engine is idling.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11698482November 10, 2025
STEERING
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11698067November 7, 2025
ENGINE
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
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11697670November 5, 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. 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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11697491November 4, 2025
ENGINE
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11697536November 4, 2025
ENGINE
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11696109October 28, 2025
ENGINE
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11695460October 24, 2025
SERVICE BRAKES, HYDRAULIC
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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