Hyundai Sonata Complaints (2023)

103 consumer complaints on file.

#11712428January 21, 2026
FUEL SYSTEM, GASOLINE
The contact owns a 2023 Hyundai Sonata. The contact received notification of NHTSA Campaign Number: 25V796000 (Fuel System, Gasoline); however, the part to do the recall repair was not yet available. The local dealer was not contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue and informed the contact that parts were still not yet available. The manufacturer referred the contact to the NHTSA Hotline to report the issue. The contact had not experienced a failure.
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
#11709400January 7, 2026
POWER TRAIN
On January 6, 2026, during my morning commute in heavy traffic, my 2023 Hyundai Sonata engine unexpectedly turned off, causing a sudden loss of power. This created an extremely dangerous situation, and I came very close to being involved in a major collision. While I was fortunate to avoid a crash, the incident posed a direct threat to my safety and life because of the dense surrounding traffic.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11708428January 2, 2026
FUEL/PROPULSION SYSTEM
Hello Sir/Madam, While driving on Interstate I-75 at approximately 70 mph, the yellow check engine warning light suddenly illuminated. Immediately afterward, the vehicle began to shake violently, lose engine power, and run extremely rough. The vehicle experienced a sudden loss of power, and pressing the accelerator pedal did not result in normal response or acceleration. The throttle input was significantly reduced, making it difficult to maintain speed and safely control the vehicle. At highway speed and in heavy highway traffic, if we had not been able to safely exit the roadway, this loss of control could have put not only the occupants of this vehicle but also other drivers at serious risk. Fortunately, we were already in the exit lane, and a McDonald’s parking lot was located immediately off the exit. This allowed us to leave the highway quickly. Otherwise, this situation could have been extremely dangerous in active, heavy highway traffic. As the vehicle continued to shake, a strong smell of gasoline and a burning odor entered the cabin, raising concerns about a possible fire hazard. We safely stopped the vehicle in the McDonald’s parking lot and then shut the engine off due to the severity of the symptoms. After shutting the vehicle off, we attempted to restart it, but the engine would not start. The vehicle had to be towed to a Hyundai service center for inspection. The Hyundai service center later confirmed that the failure was caused by a faulty fuel injector, and they have changed all 4 injectors as I attached receipt from Hyundai This failure created a serious safety risk due to sudden loss of engine power, reduced accelerator response, severe shaking at highway speed, and fuel and burning odors inside the cabin. Regards
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11704561December 11, 2025
VEHICLE SPEED CONTROL, ENGINE, FUEL/PROPULSION SYSTEM
UNKNOWN- While driving on highway, from 70 mph speed the car suddenly lost acceleration and speed dropped. No response to accelerator. Even with pushing the accelerator high, car will go in high RPM and speed will barely reach 40 mph. I was lucky that there was no other vehicle behind me, especially heavy automobile like semi truck as it would have crashed in me from behind due to sudden propulsion loss. The car started working fine next day. I took it to dealer and they couldn't find any error code but said it could be 12V battery BMS software update and they updated it. They mentioned that this is NOT a safety issue which is mind-blowing and concerning as this is a MAJOR safety hazard. I would request you to investigate this further and if this is a software issue then please direct Hyundai to update this with all vehicles and cover the cost for those who have had to pay for it.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11704347December 10, 2025
ENGINE
My car was having an issue where it was losing all the coolant, causing my engine to overheat twice while driving down the highway. Unfortunately I couldn't find a leak anywhere and there was no fluid leaking in my garage. I lost an entire reservoir of coolant overnight. After taking my car to the dealership to get repaired, I was told that it was leaking my coolant into the exhaust system and burning it up. I was also told "it was a know issue, they had a bulletin from Hyundai on how to fix the problem, and Hyundai completely redesigned the part to stop the leak and it had to be special ordered." I was without my car for a week and left with a $1300 bill as apparently it was not covered by my warranty. I have no idea how a known issue is happening so frequently that requires a nationwide bulletin and a part redesign, yet somehow is recalled. Especially considering it left me stranded on the side on the side of the highway in Indiana during a snow storm but someone seriously needs to investigate it.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11702405December 2, 2025
ENGINE, FUEL/PROPULSION SYSTEM
On 11/28/25 at approximately 6:30 pm, I was driving on a Highway 17 going about 60 mph when my car's engine completely shut down. a "Hybrid System Failure" warning flashed and my car was no longer drivable. The car was towed to the dealership. In mid October 2025, my car stopped running with the same "Hybrid System Failure" warning, but it happened in my driveway. The car was towed to the dealership and supposedly repaired.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11700476November 20, 2025
ENGINE, FUEL/PROPULSION SYSTEM
I am reporting a serious coolant system defect on my 2023 Hyundai Sonata Hybrid with about 13,500 miles. The vehicle develops an internal coolant leak while driving. Coolant burns off and white steam/smoke comes out of the exhaust, especially during acceleration. When this happens, the coolant level drops quickly, the interior heater stops working, and the car soon displays an engine overheating warning, forcing me to stop driving. This has happened multiple times and makes the vehicle unsafe. When I checked under the hood, coolant was at a low/empty level after overheating events. The car becomes undriveable once the alarm appears. I took the vehicle to a Hyundai dealer, and even though the vehicle is only 2 years old, they told me it was “out of warranty.” I had to pay about $1,500 for repairs, and since the dealer refused a loaner, I paid $250 for a rental car. I called Hyundai USA on 9/13/2025 and opened Case Number XXX. Hyundai acknowledged they are aware of coolant issues on the Sonata Hybrid but said no recall exists. This issue appears widespread. Many other owners report the same symptoms: white exhaust steam, coolant smell, coolant loss, no interior heat, and engine overheating. Hyundai released TSB 23-EM-009H, describing a failure where coolant leaks internally in the Exhaust Heat Recovery System (EHRS), causing white smoke and overheating—matching my symptoms exactly. This defect is a safety hazard because overheating can occur suddenly while driving, risking engine damage or breakdown in traffic. I request NHTSA investigate this issue as a potential recall-level defect on the 2023 Sonata Hybrid. 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
#11700089November 18, 2025
ELECTRICAL SYSTEM, ENGINE
Car stalls and shuts down while shifting to park or reverse and when slowing to turn or stopping. Also the media screen will black out and not work at times.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11698142November 7, 2025
FUEL/PROPULSION SYSTEM
Fuel injectors cause car to lose power while driving in traffic, on the highway which can cause accidents. This event happened twice one while entering the highway and one while going past a light. Neither caused an accident at the time. The car both times were taken to the dealership and the fuel injectors had to be replaced both times. The first time was in December 2024 at 12k miles
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11697927November 6, 2025
FUEL SYSTEM, GASOLINE
The contact owns a 2023 Hyundai Sonata. The contact stated that while driving at 35 MPH, the fuel mileage abnormally increased from 320 to approximately 431. An unknown message was displayed, and the contact received a notification on the Mobile App about a diagnostic trouble code for the EVAP sensor. The vehicle was taken to the dealer, where it was diagnosed, and determined that the EVAP system valve was stuck open. The dealer replaced the EVAP system, and the dealer then determined that the fuel tank was swollen due to the failure. The contact stated that the rear seat sensor was malfunctioning and was causing a warning light to illuminate erroneously, which the dealer related to the fuel tank swelling and lifting the metal underneath the seat. The dealer also replaced the fuel tank. The vehicle was repaired. The manufacturer was notified of the failure and covered the repairs. The failure mileage was approximately 73,245.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11695686October 26, 2025
ENGINE, FUEL/PROPULSION SYSTEM
The fuel injectors failed on my Hyundai Sonata in two instances. Once on 5/23/24 and once on 9/7/25. During the first instance, I was driving on a local road when the accelerator stopped working and the engine started sputtering. We were fortunately able to stop at a nearby parking lot before the engine completely stopped working. During the second instance, I was also driving through a local road when the accelerator stopped and the engine started sputtering again. This time, we weren't able to reach a safe stopping point and the engine died on the road. My family was with me at the time, so we had to push the car in neutral to the closest safe space. In both cases, our safety and the safety was others was put at risk as the car become unable to accelerate, and the car stops moving. We had to get out on the road and push the car with oncoming traffic. The problem was confirmed by the dealer in both cases, and they replaced the fuel injectors in both cases. So far, they've replaced 3 out of the 4 fuel injectors so I still drive in fear of another fuel injector causing a breakdown while I'm driving. There were no warnings or symptoms prior to the failure so there was no way to know to stop driving and to stop in a safe spot. We were fortunate to be able to move the car to a safe place for both instances, but if this had happened on the highway or secluded location, our lives could've been at risk. I've requested Hyundai to replace the last fuel injector but they're refusing to do so. I only feel safe driving in local roads or short highway trips as I fear for the reliability of my car, my safety, and the safety of others.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11694028October 17, 2025
FUEL/PROPULSION SYSTEM
While driving at highway speed, my vehicle suddenly lost power due to fuel injector failure and could not be restarted, creating a serious safety risk for myself and others in high-speed traffic. This is the second vehicle of the same year and model that I’ve owned to experience the exact same injector failure. In the first case, one injector was replaced under a Hyundai service bulletin before I sold the vehicle. This second occurrence confirms that the issue is not isolated and should be escalated to a formal safety recall. The most recent failure was diagnosed and repaired by Hyundai, confirming the problem (this time replacing all injectors). The vehicle has not been inspected by police, insurance, or other outside representatives. There were no warning lamps, messages, or symptoms prior to the failure—it occurred without any warning, significantly increasing the risk of a crash
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11690061September 27, 2025
FUEL/PROPULSION SYSTEM, UNKNOWN OR OTHER
Filled gas tank up on Friday [XXX] about 10am as leaving Boca Raton, FL to head North to New Port Richey, FL. About 30 minutes later the gas mileage said there was only 90 miles left in the tank. Stopped at the next gas station to make sure nothing was leaking, added a little more until it clicked, basically full again. Got to approximately [XXX] near Morris Bridge in Tampa area, the car started to decelerate and then all the engine lights came on and car was shutting off, was able to pull to the left side of the road and Looked into the back seat noticed the back seat was rising. Looked under the back of the car and the frame looked like it was pushing up into the backend of the car. DOT was called out to the scene as it appeared the car could have exploded. This could have killed my [XXX] daughter (which was who was driving the car) or other people on the road. 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
#11684700September 3, 2025
ENGINE, FUEL/PROPULSION SYSTEM
I was driving my 2023 Hyundai Sonata with 22,000 miles on I-96 near Grand Rapids Michigan at or slightly below the speed limit of 70 MPH. Suddenly, with no advance warning of any kind, the engine shut down. I was able to coast and maneuver to the right shoulder of the road while avoiding traffic, including a large tractor trailer that almost hit us. The vehicle than had just enough power to get off the next exit and on a local side street. At that point the vehicle would not restart and you could smell a strong odor of fuel. I called Hyundai and they sent a tow truck to take it to the nearest dealer. (I am 700 miles from home). The dealer's service department diagnosed the problem then replaced the fuel injectors still under warranty.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11679707August 10, 2025
ENGINE, FUEL/PROPULSION SYSTEM, UNKNOWN OR OTHER
The vehicle went in for repair at the dealership early July for a check engine light and DTC error code. It was revving high after being driven for more than 20 min or so and wouldn’t get to above 60 mph. Jerky, dangerous acceleration and deceleration seemingly out of nowhere. The dealership replaced the fuel pump which is what they said was causing the error. Today on August 10th, check engine light popped up again with a DTC error code. Weird acceleration and deceleration and general jerkiness when driving. Scheduled service appointment for next week.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11672238July 9, 2025
FUEL/PROPULSION SYSTEM
Failed fuel injector caused 3rd cylinder misfire car only has 30,000 miles I'm the second owner I've only had it 2 weeks and this issue happened.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11672179July 9, 2025
ENGINE
Coming home from work I stopped at a red light and when I tried to accelerate the vehicle was surging and jerking shaking and wouldn't pick up speed 2 min later the check engine light appeared flashing thankfully I was 5 min from home got the car towed the next morning to hyundai dealership said it was an cylinder misfire the car only has 30,000 miles on it
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11670632July 1, 2025
ENGINE
The contact owns a 2023 Hyundai Sonata. The contact stated that while driving 75 MPH, the vehicle briefly lost motive power before downshifting to a lower gear. In addition, the engine revved independently. The contact was able to pull over to the side of the road and turned off the vehicle. The contact was able to restart the vehicle; however, the vehicle failed to exceed 60 MPH. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The failure persisted, and the vehicle was no longer being driven. The contact parked the vehicle at the residence. The contact started the vehicle and the check engine warning light illuminated. The manufacturer was not notified of the failure. The failure mileage was approximately 34,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11669054June 24, 2025
FUEL/PROPULSION SYSTEM
The fuel injectors failed again, leaving me stranded on a busy road. The first time this happened, I had a little over 8,000 miles on my vehicle - 5 months after purchase. That was two years ago. Now, the injectors have failed for the second time and I am having to pay just north of $1,000 to get them replaced at my Hyundai dealership. It was a terrifying thing to experience and my safety was at risk due to my vehicle decelerating on a busy street. I had to call the police to help shield my vehicle from other drivers. The problem has been confirmed by a dealer upon inspection and diagnosis, and the police officer that was at the scene also could see that my vehicle would not start. This dealer works at the company that manufactures Hyundais. Prior to the fuel injection failure, there were brief moments where the 'check engine' light would illuminate but it would never stay on long. Directly before my vehicle shut off on the road due to the failure, there were no light/lamps/or other symptoms noticeable.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

← Back to Hyundai Sonata