Hyundai Sonata Complaints (2015)

1,208 consumer complaints on file.

#11672900July 11, 2025
SERVICE BRAKES, ENGINE
The turning signal gives the opposite signals sometimes.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11669781June 27, 2025
ENGINE
The car burns oil. I have to put oil in it every few weeks. Also will start shaking while acceleration. I replaced engine coils several times. Main issue is burning oil, don't know why.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11669597June 26, 2025
ENGINE, UNKNOWN OR OTHER, POWER TRAIN
Our 2015 Sonata has experiencing Engine failure several times due to excessive and irregular oil consumption. Our family’s safety and the safety of others on the roadway were put at risk as the engine slows, shudders and stalls without prior warning and the check engine light does not come on until the vehicle slows and stalls. The vehicle was inspected at a local Hyundai dealership, and they indicated that this is not covered under warranty. Summary of Engine Issues and Failures: 1.May 3, 2022 – 68,671 miles (local Hyundai dealer) Check engine light on, shudder; oil change performed. No cause identified. Paid out-of-pocket. 2.August 23, 2022 – 75,527 miles (retail shop) Car engines failed on highway, towed to service shop. Valve cover gaskets replaced. Paid out-of-pocket in part and extended warranty paid part of the invoice. 3.April 29, 2024 – 109,229 miles (local Hyundai dealer) Excessive oil consumption noted; valve cover gasket replaced again. Paid out-of-pocket. 4.January 22, 2025 – 118,341 miles (local Hyundai dealer) Vehicle stalled en route to airport, towed to dealership; dealership advised oil change. Paid out-of-pocket. 5.May 20, 2025 – 122,000 miles (local Hyundai dealer) Engine codes P0300, P0302, P0303 identified. Dealer diagnosed excessive oil consumption likely due to ring wear or sticking rings, contributing to spark plug misfires. Recommendation: Engine replacement. Despite consistent and timely service, including multiple visits to the Hyundai dealership, the root issue has not been properly addressed. The current diagnosis of internal engine failure is a clear continuation of a pattern of unresolved engine problems (stalling in motion, oil leaks and oil consumption) all of which originated well within Hyundai’s original warranty. The vehicle has been well maintained, and all recalls have been addressed in a timely manner. Hyundai’s failure to acknowledge and take responsibility for this widely documented engine issue is a safety concern.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11668087June 20, 2025
SERVICE BRAKES, ELECTRICAL SYSTEM, ENGINE
The car has had an electrical issue ever since taking to to get a recall around may of 2023. It will randomly brake and shift the transmission badly while downshifting. I feel as if my make and model falls under the theta II campaign they had to replace certain engines for having a knocking rod be fault and release shaving into the engine causing it to misfire. Not only that but the electrical issue is completely random it happens atleast once or twice a week. It had began ever since I took it for a recall, and when I took it back they found no issue and left food in the back of my car and the chairs leaned back. This was the Fontana Hyundai dealership
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11667169June 16, 2025
ELECTRICAL SYSTEM: INSTRUMENT CLUSTER/PANEL
The contact owns a 2015 Hyundai Sonata. The contact stated that while driving at an undisclosed speed, the instrument cluster failed to function as intended. The contact stated that the instrument cluster displayed a black screen. In addition, the contact stated several unknown warning lights were illuminated. The vehicle was taken to the dealer; however, the failure was not duplicated. The contact stated that an unknown recall repair for the ECM software update was performed; however, the software update failed to fix the vehicle. The contact stated that the vehicle remained at the dealer for four months without being repaired. The manufacturer was made aware of the failure, and a case was filed. The failure mileage was 140,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11666593June 12, 2025
STEERING, ELECTRICAL SYSTEM
The contact owns a 2015 Hyundai Sonata. The contact stated while her son was driving the vehicle at approximately 65 MPH, the steering wheel became difficult to steer. The contact stated that the driver pulled to the side of the road. The contact stated after the driver turned off and restarted the vehicle several times, the steering wheel responded as needed. The contact stated that the message "Power Steering Fault" was displayed. The vehicle was taken to an independent mechanic, where it was diagnosed and determined that the loss of power steering assist was related to NHTSA Campaign Number: 14V325000(Steering, Electrical System). The contact was referred to the dealer for assistance. The contact stated that the failure recurred intermittently. The vehicle was taken to the dealer, where it was diagnosed that the electric power steering assist motor and unknown related parts needed to be replaced. The contact related the failure to NHTSA Campaign Number: 14V325000(Steering, Electrical System); however, the dealer informed the contact that the VIN was not included. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 65,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11665977June 10, 2025
ELECTRICAL SYSTEM, STEERING, UNKNOWN OR OTHER
My steering rack had to be replaced at less than 55,000 miles. I asked the dealer if this was covered under warranty and they said no. I was charged $4,800 for this repair. I contacted Hyundai USA and they refused to cover the repair. I then realized that I had received a letter from Hyundai stating my car had the extended warranty of 15 years/150m miles for this exact repair. I am on the phone with Hyundai now and they are still refusing to cover this repair, even though they sent me the letter stating my car has this extended warranty. My car is available for inspection upon request. Yes, my safety and the safety of others was put at risk, my power steering would intermittently go out while turning. Yes, my car was inspected twice, once in 2023 and again in May of 2025. Repairs were done in May. I was told this was not covered under warranty but I have an extended warranty from Hyundai for this exact problem. That extended warranty is for 15 years/150m miles. Yes, the occurrence in 2025 threw a code of C168708 - CAN time out VSM (MDPS) and C1814 - CAN message failure SAS.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11665262June 6, 2025
ENGINE AND ENGINE COOLING
The contact owned a 2015 Hyundai Sonata. The contact stated that after the daughter reached the destination and parked the vehicle, a popping noise suddenly occurred from the engine compartment. After exiting the vehicle, flames were present coming from under the engine hood. The fire department was called to the scene and extinguished the flames. The vehicle was later towed to an impound lot. During the incident, the vehicle was destroyed. The cause of the failure was not determined. No injuries were reported. The local dealer was notified of the failure. The manufacturer was not contacted. The contact indicated that the engine had been previously replaced as part of a recall repair. The failure mileage was 155,000.
Crash:
No
Fire:
Yes
Injuries:
0
Deaths:
0
#11662892May 24, 2025
STRUCTURE:BODY
Peeling / Chipping Paint
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11662900May 24, 2025
EXTERIOR LIGHTING
My lights come on when the car is parked and the engine is off,mostly during the night its happened twice in 2months.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11660512May 12, 2025
SERVICE BRAKES, VEHICLE SPEED CONTROL, FORWARD COLLISION AVOIDANCE: WARNINGS
My 2015 Hyundai Sonata has demonstrated multiple instances of unintended acceleration and braking failure: April 20, 2024 – While idling in a drive-thru line, the vehicle suddenly lurched forward without any attempt to accelerate and crashed into the vehicle in front of me. I was unable to stop it. This resulted in the other car being totaled. I took it to a Hyundai dealership afterward, but they found no definitive cause. April 4, 2025 – My daughter was driving and attempted to stop at a red light. Despite applying the brakes, the car did not stop and continued through the intersection, striking the door of another vehicle. May 12, 2025 – Today, while using cruise control set to 55 mph, the car began accelerating beyond the set speed without input. It appears the cruise control system is malfunctioning and not disengaging as expected. The vehicle currently shows no open recalls, but I found that similar issues were previously investigated under NHTSA action DP21003 for this model year. These incidents occurred months apart, but the behavior is consistent and extremely dangerous. I am requesting a formal investigation. The safety of my family and others on the road is at risk.
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0
#11660133May 10, 2025
ELECTRICAL SYSTEM
MI AUTO NO ENCIENDE Y NO DETECTA LA LLAVE SIMPLEMEM NTE NO FUNCIONA NADA NO PUEDO ARRANCARLO
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11659651May 8, 2025
ENGINE, SEAT BELTS
Multifunction box is in the steering column that controls your lights, signals, I put my turn signal on right or left at night and my lights go out,but they come back on.also I have zero warning lights on my dashboard for when something happens it let's you know,well I have none. Hyundai of California says it's not unsafe.it should be a recall because it's a thousand dollars for update..
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11659122May 5, 2025
ENGINE
I've been in communication with Hyundai Henderson, Nevada and Hyundai Corporate as result of engine problems with my 2015 Hyundai Sonata. Corporate instructed Hyundai Henderson to submit a "Goodwill Warranty Repair order. However Hyundai Henderson, who has already determined that the vehicle has total engine failure, is requiring that I complete the thousand mile oil consumption test. My car has already proven to be unable to drive a couple hundred miles before losing acceleration. This is a huge safety issue to ask a consumer to drive this vehicle or to put this vehicle on the road as it is. Please advise on how I may move forward with Hyundai Henderson and Hyundai Corporate. * I have my entire battery/oil/repair/tire history - will scan and submit if needed/ upon request - unable to attach here. Sincerely, [XXX] [XXX] [XXX] 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
#11657210April 28, 2025
ENGINE
I was driving down the road the engine started making a loud knocking noise and as I pulled over it lost power and shut down it would not crank back up I had to have it towed to my house. There was no warning sign.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11656995April 26, 2025
ENGINE, UNKNOWN OR OTHER
The car just stopped while driving.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11655750April 21, 2025
ENGINE
As we were driving on the highway at 65 mph, the car completely cut off. Fortunately, we were able to immediately steer it off the road to avoid an accident. We had it towed and the mechanic at the auto repair shop said the engine was completely shot. He advised us to have it towed to a Hyundai dealership because he had seen this same situation with other Hyundais with limited mileage and said there may be a safety recall or a class action lawsuit. My car has 60,000 miles and is well maintained.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11655751April 21, 2025
ENGINE AND ENGINE COOLING
The contact owns a 2015 Hyundai Sonata. The contact stated that while operating the vehicle, the check engine warning light illuminated, and the vehicle was shaking and vibrating abnormally. Additionally, the vehicle failed to accelerate above 40 MPH. The cause of the failure was not yet determined, and the vehicle was not yet repaired. The manufacturer and local dealer were not yet notified of the failure. The failure mileage was 136,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11655600April 19, 2025
ENGINE, ELECTRICAL SYSTEM
I was driving and when turning into a parking lot, I accelerated and the vehicle stalled. It did not go suddenly when accelerating. A couple days later, I use a code reader and have a code listed as P1326. So I take it for a diagnostic at a local shop and I am told it is the Knock Sensor Detection System (KSDS). I was advised to take it to a Hyundai dealer because often these vehicles have manufacture warranty since there’s recalls. There have been some vehicles under this recall Hyundai put out as Service Campaign 966 or 982. They have had vehicles deal with this sensor issue before. Hence why there is a campaign issued. I review to see if there are any recalls on my vehicle and tare none but there are other models listed for this particular issue for Hyundai vehicles. My vehicle was driving fine and it’s fairly new. Low miles then suddenly this happened without warning. I believe it is a recall issue for this model as well.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11655631April 19, 2025
STRUCTURE:BODY
On Friday, April 18, I opened my panoramic sunroof on my car. When I did, the wind deflector became detached from the sunroof mechanism. So I attempted to close the sunroof and when I did, the would not close all the way and the sunroof appeared to become off track. No the roof will not close all the way leaving it popped open about an inch. I called a couple of Hyundai dealers and they both said that there was an extended warranty provided by Hyundai. Based on my car’s original purchase date, I am out of warranty by 6 weeks on time but under the mileage of 120,000 mileage limit. . I have read that this has caused the glass portion of the sunroof to blow out of the car because it won’t close all the way. I believe that this poses a threat not only to me and my passengers as well as possibly someone riding behind me me getting hit because the sunroof came loose and hitting them as well.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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