Hyundai Sonata Complaints

17,026 consumer complaints on file.

#11658167May 1, 2025
UNKNOWN OR OTHER
My car when shut off and restart will show the wrong speed. I am not the only person who has been dealing with this and you can look up 2024 hyundai sonata n line speedometer and a reddit post will come up with other people dealing with this. Hyundai is not willing to deal with this even after proving it was off
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11657892April 30, 2025
ENGINE, UNKNOWN OR OTHER
Car transmission replaced with only 38,000 miles. Car shutters, skip gears, loss of power. Very dangerous especially when pulling out from side road on to main road. Transmission problem starts out as intermittent at first, so you never know when it will happen next. Lots of near misses where I would have been rear ended, due to shifting problems. New Transmission is already starting to shift erratically at times with only 2,000 miles on new rebuilt trans. Cost of repair is 5 to 6,000. Also own 2012 Hyundai Sonata Hybrid with the same exact transmission problems. Transmission replaced at 67,000 and now at repair shop for replacement Trans at 124,000 miles. Vin [XXX] . Both of these cars are dangerous to drive. These problems start out intermittently, and if the dealership cannot duplicate the problem, they will not fix anything, hoping to string you along past the warranty period. I tell them to check the fault code history and they tell me that they did not find any error codes. Both these cars also have the defective engine too- but so far my engines are working correctly. Invoices can be provided if needed. Found research shows that there are transmission problems with almost all generations of the Sonata's especially my 2 years - 2012 and 2014. 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
#11657974April 30, 2025
ENGINE, FUEL SYSTEM, GASOLINE
The contact owns a 2013 Hyundai Sonata. The contact stated while driving at an undisclosed speed, the vehicle inadvertently lost motive power. The contact was able to pull over to the shoulder of the roadway, where the vehicle failed to restart. No warning lights were illuminated. The vehicle was taken to an independent mechanic, who diagnosed the vehicle with engine failure. The vehicle was not repaired. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 18V934000 (Engine, Fuel System, Gasoline); however, the VIN was not included. The manufacturer was not notified of the failure. The failure mileage was unknown.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11657977April 30, 2025
ENGINE
THE ENGINE THEY EVEN HAVE A RECALL ON MY CAR ENGINE THIS HAVE CAUSED NO RISK THIS PROBLEM HAVE BEEN CONFIRMED BY A MECHANIC HAVEN’T BEEN LEGALLY INSPECTED YES THE OIL LIGHT COMES ON OFTEN
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
#11657913April 30, 2025
ELECTRICAL SYSTEM
The buttons to the door locking and unlocking don't work unless I open and close my door a few times. The same thing with the back windows. But after you do the trick and use the intended button once, it stops working and have to repeat the entire process over again. Which is not safe especially when the car is in motion, I am not able to use those buttons at all.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11657515April 29, 2025
ENGINE AND ENGINE COOLING
The contact owns a 2011 Hyundai Sonata. The contact stated that while driving on the highway at 60 MPH, there was smoke coming from the rear of the vehicle. The contact immediately pulled over to inspect the vehicle. Upon checking under the hood, the contact noticed that the coolant level was low. The contact attempted to restart the vehicle; however, the vehicle failed to start. The vehicle was towed to a dealer, where it was diagnosed, and the contact was advised that the engine had overheated and needed to be replaced. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 130,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11657617April 29, 2025
ENGINE
This engine consumes oil rapidly to the point i have to add quarts of it constantly . This results in the spark plugs deteriorating at a rapid rate and the coil packs as well. The car only has 75,000 miles but the problems began to start around 69,000 miles because of these issues and the engine and burning oil because of the rings and pressure it begins to shake rapidly and sputter and stall out.
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
#11657310April 28, 2025
ENGINE, UNKNOWN OR OTHER
I purchased a vehicle from Cash Car Network on 4/3/2025. At the time of purchase, the vehicle's odometer showed a mileage significantly lower than what official records indicated. After purchasing, I reviewed the Carfax report and the vehicle registration history, which documented that the actual mileage was approximately 270,000 miles — much higher than what the odometer displayed. This discrepancy suggests that either the odometer was tampered with or the instrument cluster was switched from another vehicle without disclosure, which violates federal laws related to odometer fraud (49 U.S.C. § 32701 et seq.). Additionally, the vehicle experienced multiple serious mechanical failures shortly after the purchase, affecting its safety and drivability. I have since returned the vehicle to the dealership. I am filing this complaint to report potential odometer fraud, failure to disclose critical vehicle information, and the sale of an unsafe vehicle to a consumer. I am requesting that NHTSA investigate this dealership for possible violations of federal odometer disclosure laws. Supporting documentation, including the Carfax report and registration history, is available upon request.
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
#11656895April 25, 2025
ENGINE
Air flow check engine light alerted and source was faulty fuel injector which required replacement of 4 fuel injectors.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11656826April 25, 2025
POWER TRAIN, ENGINE, UNKNOWN OR OTHER
Bought in 2023 @ 98k miles. Have had trouble with 1.it would only start in drive, then that seems to have self corrected. 2. In drive, car would not accelerate properly, and would slow as though I was braking, but no foot on brake. Had rear brake sensor replaced, seemed better for a while. 3. Developed oil leak at 120 miles which valvoline characterized as "not serious...just keep checking it and topping it off." So, have been doing that. Today after oil change, it began running rough, lots of vibration, then the shifting problem, sluggishness, and new..smoke from under hood on driver's side. No check engine lights at all. Nothing registered as hot or overheating. Turned off car, checked oil and trans fluid, both in proper range for warm engine. Let car sit and cool for an hour. Decided I had parked too close to the propane tanks for a smoking car, so I decided to start car just to back it into a space across the lot. Car had no issues- No smoke, no jerking or vibration, no sluggishness, no phantom braking. This car has done this same thing about once every 6 months since I've had it. Changed a tire sensor, that seemed to fix it once. Stopped using cruise control altogether, that seemed to help once. My brother is an ASE certified high school auto mechanics teacher who ran his own shop for 20 years and worked on trucks for VDOT for another 7 years and he cannot diagnose it. I know it has something to do with not being in the correct gear, but it's not reliable, and I have a hard time believing it's just my vehicle.
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
#11656407April 23, 2025
AIR BAGS
The contact owned a 2013 Hyundai Sonata. The contact stated that while driving approximately 35 MPH, the front driver's side air bag unexpectedly deployed without an impact to the vehicle. The air bag warning light illuminated prior to the incident. The contact then crashed into the rear of a utility trailer, where it came to a stop. The contact broke a tooth. The paramedics were called and performed a check; however, the contact did not go to the hospital or urgent care. A police report was filed. The vehicle was towed to a tow yard. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The insurance company was contacted and declared the vehicle a total loss. The manufacturer was made aware of the failure. The failure mileage was approximately 140,000.
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0
#11656443April 23, 2025
FUEL/PROPULSION SYSTEM
The car would excelerate while in park. While I was pressing the brakes the car would jerk forward, it would not just quietly idle. While driving the car would randomly speed up or slow down. Sometime it would sound like it was going to shut off and start vibrating.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11656049April 22, 2025
ENGINE, POWER TRAIN, STEERING
The engine stalls when driving, loses power, hard time to start. It uses an extensive amount of oil. Losing power/stalling can result in accident or fire in my engine. Yes check engine light came on said it was coils/plugs changed them 2xs already. Took it to a mechanic was told there’s a recall on engine it’s a valve that is not getting air through that can potentially case a Fire in my engine.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11656140April 22, 2025
EXTERIOR LIGHTING:TAIL LIGHTS
The contact owns a 2013 Hyundai Sonata. The contact stated while driving on the highway at an undisclosed speed, the contact pulled over by the local Police because the taillights were inoperable. There was no warning light illuminated. The contact attempted to replace the bulbs; however, the failure persisted. The vehicle was taken to a local dealer where it was inspected; however, the vehicle was not diagnosed, and the contact was advised that the VIN was not under recall. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 200,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11656142April 22, 2025
EXTERIOR LIGHTING
The contact owns a 2013 Hyundai SONATA. The contact stated that while driving on the highway at an unknown speed the contact was pulled over by local police due to their vehicles tail lights no longer functioning, no warning lights were illuminated. The contact attempted to replace the bulbs however the failure persisted. The vehicle was taken to a local dealer where it was inspected, however the vehicle was not diagnosed as the contact was advised that their VIN was not included in any recalls. The vehicle was not repaired. The manufacturer was notified of the failure. The approximate failure mileage was 200,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11656177April 22, 2025
POWER TRAIN
The car went into limp mode they have problems with the knock sensor and that is what it threw to the computer and I changed the sensor and went away and now limp mode again and computer says basically the same thing there is a software update and the engines are failing
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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