2010 Hyundai Sonata Owner Complaints

Subject: Non-Collision Engine Compartment Fire - 2010 Hyundai Sonata (VIN: [XXX] ) ​"On dec 19 2025, my 2010 Hyundai Sonata suffered a sudden, non-collision fire that originated in the engine compartment. While there are currently no 'open' recalls on this VIN, I am formally reporting this incident as it matches the failure patterns documented in NHTSA Defect Petition DP18-003 regarding non-crash fires in Hyundai/Kia vehicles. ​Preliminary inspection of the damage shows characteristic signs of a manufacturer defect, specifically potentially related to a connecting rod bearing failure leading to an engine block puncture and oil ignition, or an electrical short in the ABS module—both of which have been subjects of major Hyundai fire investigations and class-action settlements (e.g., Engine II settlement) INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11706241

Incident

Dec 19, 2025

External Handles made of plastic continue to break and do not allow access to open car doors

NHTSA ID

11699964

Incident

Nov 8, 2025

I have had 3 door handles fall off in the last couple months I think this is safety concern i do not see any recalls.I do see that there is a lot of people complaining about this matter door handles should not be fallen off

NHTSA ID

11686797

Incident

Sep 11, 2025

Car has had check engine light on for 3 + years. Have taken it to several mechanics including a Hyundai dealership and none of them can figure out what is wrong. Have replaced water pump, belts x2 in a year (same belt) and thermostat x 3 again (all within 2 years). Dash fuel gage and Dash heating/cooling gage are completely erratic. Cruise control does not work. Due to chronic check engine light and mechanics unable to pin point the problem, car has become hazardous to drive. With that in mind, today (9/10/2025) while exiting the high way, car stalled and behaved like it was in neutral. Steering wheel also locked up at this time. Luckily was able to stop. Had to restart car and then it occurred again while driving on a side street at 35mph. The codes that are still popping up are ones that I have spent thousands trying to fix and find the root cause of the problem. What could the issue be if no mechanic can seem to diagnose and fix the issue?

NHTSA ID

11686499

Incident

Sep 10, 2025

While driving 60–70 mph on [XXX] just north of Sylmar, I suddenly heard a loud, deep “pop” from the lower part of the car. Within seconds, the engine began steaming heavily and leaking oil everywhere. I immediately turned on my hazard lights and began maneuvering toward the right shoulder, crossing multiple lanes with semis and fast-moving traffic approaching behind me. I felt unsafe and feared the car could catch fire or explode, especially with smoke and oil present. After safely exiting the vehicle, a mechanic later told me the rod bearing blew and punched a hole through the bottom of the engine block, calling it a total engine failure. He said it would require a full replacement and matched known issues with this model. There was no warning before the failure. I’m having it inspected at Hyundai of Downtown Los Angeles on July 28. I believe this event posed a serious safety hazard to me and others on the road. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

NHTSA ID

11676434

Incident

Jul 25, 2025

The contact owns a 2010 Hyundai Sonata. The contact stated that upon attempting to turn the ignition key in the ignition switch to start the vehicle, the ignition switch failed to turn, and the steering wheel locked. The vehicle was towed to an independent mechanic, where the ignition switch was replaced; however, the vehicle failed to start. The mechanic determined that an unknown part needed to be replaced. The mechanic contacted the manufacturer for parts and was informed that the unknown part had been discontinued. The vehicle was not repaired. The failure mileage was unknown.

NHTSA ID

11591509

Incident

May 22, 2024

Fuel pump failure, causing car to stop immediately on highway.

NHTSA ID

11591412

Incident

May 28, 2024

The contact owns a 2010 Hyundai Sonata. The contact stated while driving at various speeds, the steering wheel was constantly pulling to the right. The contact had to steer to the left to keep the vehicle centered. The failure persisted even after wheel adjustments had been made. The vehicle was taken to an independent mechanic where it was diagnosed and determined that an alignment was needed. The wheels were aligned. The manufacturer had been made aware of the failure. The failure mileage was 70,000.

NHTSA ID

11577080

Incident

Mar 13, 2023

Mileage

70,000 mi

The plastic housing of the brake lights have turned black. I'm on my second set that I got at wrecking yard. The plastic doesn't hold up to the heat of the tail/brake light. I saw other cars like mine with same problem at the wrecking yard. And my ground wire to my radiator fan burned out as well during COVID. I think Hyundai used cheap plastic that can't hold up to the heat. My dash cracked really bad as well. All over. I saw the same cracked dashes of other car in wrecking yards. They know they had a plastic defect and they changed body styles the next year. My door handles brake off in my hands and the a/c vent broke twice. They have hazzard car because all of this happened early when I purchased the car. And my car has Hyundai and Kia parts old body style 2010 bought end of 2009. Theta 2 engine. All of the recalls but they leave my car out. And that stop brake switch light has broken so many times. Replaced free only 1 time by dealership. Other times I had to pay for. Cheap plastic. If I need repair by dealership , I have to leave car on their lot for 6weeks for them to look at. Not appointment. Leave my car on lot until it's my cars turn. And my car just quit running once while driving in my apartment complex. It also quit running driving down the highway.. everything shutting off and lights turned on dash. The battery light was on first, then the check engine , abs, and all lights coming on. I tried to turn on my hazards but everything was failing. I was lucky I wasn't hit by other highway traffic. My headlights went off or really dim. I was allowed to drive really slow to a roach hotel just there on interstate. I was told it was my alternator. But I think it was something else that caused failure. I did have my car professionally washed, that day. (Hardly do that). And the week before it was at Hyundai shop for retinting of windows which my battery was dead in their dusty lot when pickup. That brake light switch lamp stopper was broken and laying in floor l

NHTSA ID

11557588

Incident

Sep 28, 2023

I purchased a 2010 Hyundai Sonata in February 2022 from the original owner. In July of this year, my engine failed due to the oil consumption defect found in many of Hyundai's engines produced at the Alabama factory. My oil and check engine light came on before it was time for my following oil change, despite making on-time synthetic oil changes during ownership. The vehicle hesitated and jerked on my commute to work, potentially causing harm to myself and other motorists. I went to take my vehicle to the mechanic on my lunch break. The car failed to turn over and has been inoperable ever since. I need my engine replaced at no charge. It's unconscionable that corporate would turn me away because the engine has 146k miles, which is nowhere near the industry standard 200k. Hyundai has inspected the vehicle and confirmed that an engine replacement is needed.

NHTSA ID

11540487

Incident

Jul 17, 2023

the alternator failed and after being tested, had to be replaced.

NHTSA ID

11525889

Incident

Jun 5, 2023

I have several recalls on my vehicle and the dealership only scrub and they did not replace the crossmember and other parts. I need help to see if this is OK

NHTSA ID

11524560

Incident

May 22, 2022

I am contacting the NHTSA regarding a manufacturer's failure to comply with a NHTSA recall campaign. The campaign in question is #13V113000 for a 2010 Hyundai Sonata. The certified Hyundai service center claimed, verbally and on the customer invoice, to have replaced the stop lamp switch with a new OEM part, number 93810-4DR0A-QQH, per the recall's order. After supposedly replacing the defective part, the vehicle is still able to be shifted out of Park without first depressing the brake pedal. This happens with the key in the 'ON' position, 'Accessory' position, and even without the key in the ignition at all. No depression of the brake pedal is currently required to shift the vehicle, in any form, violating the recall's correction order. After contacting Hyundai Motor Company, they informed me via phone and email that because the car is "so old" and "out of warranty", I would remain financially liable for diagnosing and repair of any problems related to NHTSA Campaign #13V113000. Based on the fact my vehicle's current and ongoing issue is EXPLICITLY clarified in the details of Campaign #13V113000, I believe it remains Hyundai's responsibility to ensure the vehicle is safe to operate. Furthermore, Hyundai has seemingly, knowingly and willfully threatened my safety, safety of passengers, and that of the general public by refusing to thoroughly comply with a NHTSA Campaign. This subsequently places the person(s) listed above at risk of injury or even death due to Hyundai Motor Company's negligence. I hope that by reaching out to the NHTSA about this ongoing issue, the problem can be resolved respectfully, as the next course of action and final recourse, with regards to Hyundai Motor Company, may result in legal escalation. Thank you.

NHTSA ID

11522962

Incident

Apr 26, 2023

Recently at the Hyundai Dealership in Plantation,Florida I had them repair 2 RECALLS which were the LAMPLIGHT SWITCH & CROSSMEMBER. These RECALLS were not done correctly and caused my ESC Light to come on and my car shakes while driving. I never had these items before until they worked on my RECALLS. Now the Hyundai Dealer service is refusing to fix the damage they caused. I need help right away. The RECALL repair appointment was on June 12, 2022 and had them check the RECALLS again on August 29, 2022. My car is still at the Hyundai Service in Plantation, Florida.

NHTSA ID

11482768

Incident

Jun 13, 2022

Junction box failure. No functioning marker lights.

NHTSA ID

11474945

Incident

Jul 20, 2022

Front subframe corrosion, cross member is rusted through at the weld line for the front sub frame. Discovered during annual safety inspection

NHTSA ID

11463803

Incident

Apr 30, 2022

Rough jerking downshift transmission when stopping or slow down.

NHTSA ID

11454289

Incident

Jun 15, 2021

My car check engine light is on for a while.it’s yellow solid light seen on my car dashboard.I went repair center and he advice and changed my car vent valve and light goes out for some days and again appear. I change my car gas cap too but it didn’t work. I spent a lot of money to fix that.

NHTSA ID

11437017

Incident

Oct 4, 2020

We were hit on the right front passenger side by a driver on a Suzuki motorcycle. The driver was ejected from the motorcycle, went thru the right passenger window, traveled across the passenger compartment. He came to rest head down on my lap. Accident was fatal for the motorcyclist who died at the site. My adult autistic son was seated in the rear seat behind the passenger seat. The side front passenger window was completely shattered and the rear right passenger window was shattered also. My son hit his head on the interior right side of the vehicle and had a TBI and serious cuts requiring surgery and ICU stay. No airbags in the car deployed including side airbags and no curtainwalls deployed on the right side or anywhere in the vehicle. Car was supposedly equipped with such. Police inspected vehicle, insurance people inspected vehicle; vehicle is available for inspection at salvage lot. Pictures have been taken by insurance company. Right side of vehicle was severely smashed. I had no previous warning of problems with safety features.

NHTSA ID

11421940

Incident

May 14, 2021

TL* THE CONTACT OWNS A 2010 HYUNDAI SONATA. THE CONTACT STATED THAT WHILE DRIVING 70 MPH, THE ENGINE THREW A ROD AND THE VEHICLE STALLED WITHOUT WARNING. DUE TO THE FAILURE, THE CONTACT PULLED THE VEHICLE OFF TO THE SIDE OF THE ROADWAY AND HAD THE VEHICLE TOWED TO AN INDEPENDENT MECHANIC. THE MECHANIC CONFIRMED THAT THE ENGINE THREW A ROD WHICH LED TO COMPLETE ENGINE FAILURE. THE MANUFACTURER WAS NOTIFIED OF THE FAILURE AND INFORMED THE CONTACT TO TOWED THE VEHICLE TO AN AUTHORIZED DEALER FOR ASSISTANCE. THE VEHICLE WAS THEN TOWED TO HYUNDAI OF GREELEY (4533 W 29TH ST, GREELEY, CO 80634) AND HE WAS INFORMED THAT THE VEHICLE WAS NO LONGER UNDER WARRANTY. NEITHER THE DEALER NOR THE MANUFACTURER OFFERED ANY FURTHER ASSISTANCE. THE VEHICLE REMAINED IN THE POSSESSION OF THE DEALER. THE VEHICLE WAS NOT REPAIRED. THE ENGINE BLEW AND FAILURE MILEAGE WAS 116,000. *DT *JB *DT

NHTSA ID

11398690

Incident

Feb 2, 2021

Mileage

116,000 mi

SUSPENSION AND TRANSMISSION FAULTY.

NHTSA ID

11386206

Incident

Jan 2, 2021

ALL BUT ONE DOOR HANDLES ARE BROKEN. THE DRIVER SIDE JUST BROKE AND ITS A SAFETY HAZARD.

NHTSA ID

11377364

Incident

Nov 25, 2020

Mileage

136,000 mi

IN THE LAST THREE MONTHS, BOTH DRIVER'S SIDE DOOR HANDLES HAVE FALLEN OFF/BROKEN. IN THE FIRST INCIDENT (SEPT 2020), THE DRIVER'S SIDE REAR DOOR HANDLE BROKE OFF THE CAR WHEN I TRIED TO OPEN THE DOOR. IN THE SECOND INCIDENT (NOV 2020), THE DRIVER'S SIDE FRONT DOOR HANDLE REMAINED ON THE CAR BUT BROKE SO THAT IT NO LONGER FUNCTIONS. BOTH INCIDENCES OCCURRED WHEN THE VEHICLE WAS STATIONARY. IT IS UNKNOWN WHY THE DOOR HANDLES BROKE; I DID NOT USE EXCESSIVE FORCE NOR WAS THERE ANY INDICATION OF A PROBLEM PRIOR TO THESE INCIDENCES.

NHTSA ID

11372556

Incident

Nov 1, 2020

LAST MONTH, THE DOOR HANDLE TO THE DOOR BEHIND THE DRIVER SEAT WAS BROKEN. WHEN I TRIED TO OPEN MY DOOR, IT DID NOT OPEN. THAT IS IN THE PICTURE ATTACHED. ON SATURDAY, I OPENED MY DRIVER'S DOOR AND THE DOOR HANDLE BROKE IN MY HAND. NOW I HAVE ONLY TOW DOORS THAT I CAN OPEN. I LOOKED ONLINE AND MANY PEOPLE ARE HAVING ISSUES WITH THE HYUNDAI SONATA. I FEEL LIKE CUSTOMERS SHOULD NOT PAY FOR THIS BECAUSE THIS A KNOWN SAFETY ISSUE. WHEN THIS HAPPENED, MY CAR WAS PARKED. I AM GOING TO HYUNDAI TO GET THIS REPAIRED BECAUSE I AM SCARED THAT I WILL NOT BE ABLE TO GET IN MY CAR IF ALL THE HANDLES GETS LIKE THIS.

NHTSA ID

11354899

Incident

Sep 12, 2020

Mileage

170,000 mi

CAR HAS ONLY 77,000 MILES AND WAS WELL MAINTAINED. ON AUGUST 27, I HAD DRIVEN THE CAR LATE AFTERNOON, PARKED. LATER AFTER A COUPLE OF HOURS WHEN I WENT TO START IT, IT WOULD NOT START, JUMP START DID NOT WORK. MECHANIC REPLACED THE STARTER AND STILL WOULD NOT START. HE CHECKED THE ENGINE AND TOLD ME THAT THE ENGINE HAS SEIZED. I TOOK IT TO THE HYUNDAI DEALER WHO CONFIRMED THAT ENGINE HAS SEIZED. I CONTACTED HYUNDAI AS THE COMPLAINT IS SIMILAR TO OTHER CAR ENGINES THAT SEIZED WHEN DRIVEN BETWEEN 60,000 AND 90,000 MILES. HYUNDAI MOTORS IS NOT WILLING TO FIX THIS MAJOR ISSUE.

NHTSA ID

11353067

Incident

Aug 27, 2020

Mileage

77,000 mi