Hyundai Sonata Complaints

369 consumer complaints on file.

#11666438June 11, 2025
FUEL/PROPULSION SYSTEM
First owner, sporadic acceleration problems reported from approx 6k miles. Documented with dealership.. “couldn’t reproduce” issue every time I brought it in after an occurrence. Dangerous when entering highway, as I never knew when it would fail/stall. Eventually broke down on busy interstate highway, replaced 1 fuel injector, and guilt tripped me into “needing” to have fuel injector cleaning because the others might fail as well. 27k miles was the first breakdown. 38k was the second breakdown and almost caused a serious accident when I was unable to accelerate. Replacing all 4 fuel injectors but not covering the oil change due to their faulty fuel injectors.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11666202June 10, 2025
ENGINE, UNKNOWN OR OTHER
On June 4 as son was turning, the car started shaking & went to park. He managed to slip into a nearby parking spot & tried to reverse. The car turned on, put into reverse & then after about 2 seconds it went to park & stopped. This happened several times. It was towed to the dealer who today, June 10, reported it was a transmission flaw. The car was being driven at about 30 mph on a 2 way street. Had it been on the interstate at a higher speed, it may have caused a dangerous situation with a sudden stop.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11665119June 5, 2025
POWER TRAIN, VEHICLE SPEED CONTROL, UNKNOWN OR OTHER
Vehicle suddenly accelerated after pulling out of store parking lot at low speed into side street behind vehicle stopped at light (less than a car length in front) while pressing hard on brake. Vehicle lurched forward incrementally during the braking process, but vehicle kept accelerating causing vehicle to hit stopped vehicle numerous times before vehicle engine was finally turned off. Driver of both vehicles could have been seriously hurt. Vehicle was driven home after this incident without incident but has only been driven out of garage and onto and off towing truck. Car has not been inspected except for damage to vehicle and is currently awaiting insurance rep inspection at vehicle repair facility. Once damage is repaired car will be towed to dealership for inspection. Because of the short distance vehicle traveled no warning lamps/messages were noted.
Crash:
Yes
Fire:
No
Injuries:
0
Deaths:
0
#11663670May 29, 2025
FUEL/PROPULSION SYSTEM
My car stalled while driving through an intersection and nearly caused a T-Bone collision. The car would not start afterwards and towed to dealership. The car currently has 32000k miles on it. The inspection report stated leaking fuel injectors causing misfires. This was covered by warranty. The parts are currently backordered with no eta on possible repair indicating it might be a widespread issue. There were no warnings or lights prior to incident. The car had just been serviced at 30k miles by the dealership with no indication of possible failure given to me by maintenance department. The dealership is out of loan vehicles and I’ve been without a vehicle for 6 days now causing work and personal issues.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11663368May 28, 2025
ELECTRICAL SYSTEM, POWER TRAIN, VEHICLE SPEED CONTROL
I have gone 3 times to dealer because speedometer was off. They confirmed that the speedometer was off but they couldn't do anything about it. They told me that for this car, there is no VSS and the speedometer gets the speed from the navigation system. The navigation system is obviously glitching which is causing this. I am not the only person experiencing this. This has to be taken care of and taken seriously
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11663019May 25, 2025
UNKNOWN OR OTHER
P0741 code tcc solenoid
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11662701May 23, 2025
UNKNOWN OR OTHER
I was driving my yesterday morning like normal, about 15mph getting off of a freeway offramp, when all of the sudden I heard a strange brief noise come from the inside of the car. I couldn't figure it out so I drove home. Went inside for about 20 minutes, went back outside to leave again and I noticed my panoramic sunroof had shattered/exploded from the inside outward. I had it towed to my local dealer in hopes warranty would cove, but I was told it wouldn't. I have to use aftermarket glass with my insurance company to replace it due to Geico not covering OEM glass.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11661682May 18, 2025
ENGINE, FUEL/PROPULSION SYSTEM
Car keeps jerking also it’s something going on with the fuel injections I’ve had to get them replaced twice. Please help
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11660630May 13, 2025
FORWARD COLLISION AVOIDANCE: WARNINGS, FORWARD COLLISION AVOIDANCE: ADAPTIVE CRUISE CONTROL
I have not had accident in vehicle. There is a driver attention warning feature in the 2024-2025 Hyaundai vehicles that can not be turned off. They were able to be turned off in previous models. Because of the over sensitivity of the feature it creates a distraction while driving. It triggers activation after 10 minutes of driving and goes off if you’re swerving or wearing sunglasses, etc. a number of reasons. However, while I have been driving perfectly fine, it continues to go off and beep every 5 or so minutes. No swerving. Both hands on wheel. The feature isn’t a bad idea but needs to be less sensitive and able to be turned off. Going off so consistently creates a distraction to me while driving. I could see there potentially being many lawsuits regarding this due to accidents. I have spoken to multiple Hyaundai dealerships and they all say there is nothing they can do.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#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
#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
#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
#11656098April 22, 2025
STRUCTURE:BODY
I’m reporting a serious safety issue with my 2024 Hyundai Sonata. After a routine service at Koons Hyundai of Woodbridge in late February, the under-engine splash shield detached and dragged under the vehicle while I was driving on the highway. Upon inspection, it was clear that the splash shield was not secured with any screws or clips — it was either improperly installed during service or never fastened at all. This caused the shield to flap violently at high speeds before tearing off entirely. It posed a serious hazard to me and other drivers on the road. When I brought the issue to the dealership, they refused responsibility, falsely claimed it was caused by scratches (despite no such damage before the failure), and told me and my wife that we are no longer welcome for service. A part like this should never fall off a new vehicle, especially after a recent service. This could have caused a major accident if it hit another vehicle or interfered with my driving. I am requesting NHTSA to review this case for possible service negligence or manufacturing defect, and ensure future safety.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11655652April 19, 2025
VEHICLE SPEED CONTROL
Speedometer display inaccurate speed. Sometimes its shows 1-4mph miles more than the actual speed and other times 6-8mph. Verified issue with sonar system from different truck, street speed limit screen and own gps.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11653249April 7, 2025
FUEL SYSTEM, GASOLINE
The contact owns a 2022 Hyundai Sonata. The contact stated while driving at an undisclosed speed, there was an abnormal sound coming from underneath the vehicle. No warning light was illuminated. The vehicle was taken to a local dealer and was repaired for a fuel valve failure. The vehicle was repaired; however, shortly after the repair the check engine warning light illuminated. The vehicle was taken back to the same local dealer where it was diagnosed with the fuel valve failure. The vehicle was repaired; however, the failure had reoccurred. The vehicle was taken back to the same local dealer where it was diagnosed with a fuel valve failure. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 92,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11651446March 29, 2025
WHEELS
Vehicle is shaky at highway speeds
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11650219March 24, 2025
ELECTRICAL SYSTEM, FUEL/PROPULSION SYSTEM
I have had this car checked out 3 times and on my way to the 4th appointment. I can be in the middle of the road or pulled up in my driveway the RPMs go crazy shuts off every light comes on then clicks and I have to waite and try to restart. This car has been a problem since we bought it brand new even the chrome has come loose on it. Took to 1 dealership they said it's not throwing a code so nothing they can do I pulled out of the dealership onto the busy highway and the rims went crazy lights came on and it died called the mechanic that said nothing was wrong he came out got it running took it back came back said nothing showing up so there was nothing he could do. I'm driving another 3 hours away hoping I make it to another dealership that said they would look at it after I sent pictures and a video to the mechanic. I will NEVER buy another hyundai again and definitely tell anyone I know not to.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11647714March 11, 2025
POWER TRAIN
My transmission on my 21 Hyundai sonata n line has failed. It began when the car needed to emergency brake when someone jump into my lane on the road. There’s grinding, and whining in the transmission along with delayed shifts, jerking and a burning smell that comes through the vents of my car upon start up. The recall on this transmission is because it may become defective. I bought the vehicle from a Honda not a Hyundai dealer in March of 2023 the recall campaign closed out Jan of 2023. According to Hyundai records show that the TCU update remedy was performed Jan of 23. However, even though that TCU update was performed, 2 years later my transmission began to fail. I brought it to my local dealer for a transmission drain and refill not a flush. Per the service manual it’s a drain and refill however they flushed it which caused the transmission to worsen. I took it back to have it diagnosed and I was told I needed my transmission replaced. Didn’t even explain why or go into further detail what was wrong with the transmission. I brought up the recall on the transmission and they did nothing to honor it. Now I’m stuck with a car with a broken transmission i can’t afford to fix and I’m gonna be forced to hand the car over to the bank. If this recall can still be honored please help.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11646486March 5, 2025
ENGINE, ELECTRICAL SYSTEM, VEHICLE SPEED CONTROL
I purchased this vehicle brand new off of the lot February 2024. Since then, I have had two incidents where in the middle of driving my vehicle has completely shut off. The first experience, I was driving 50+ mph. First my headlights went out, my engine shut off, my dashboard shut off, and I was cruising without power or control over my vehicle for about 5 seconds before everything turned back on. I took my car to the dealership where they “could not confirm concern” after driving around for 15 miles trying to recreate the issue. They stated no codes or issues were shown on their end and returned the car to me. 6 months later during late October, my car did the same thing. I was driving 40+ mph and my car shut off in the middle of me driving. I contacted my dealership to inform them it happened again. They told me they did not have any available appointments to bring my car in. Out of frustration I did not bring it in until a few weeks ago for a regular check up. I gave them the exact date and time that my vehicle shut off and they again could not find the issue that caused the car to turn off. I was informed by a Hyundai representative that he anticipates this issue getting worse as it happened twice in the first year of owning it. That when it happens again to get my car towed by Hyundai roadside assistance and straight to the dealership. As stated, I lose complete control of the vehicle. Luckily both instances I have been on a straight road but I have concerns that this could happen at the wrong time leaving my injured.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11646147March 4, 2025
UNKNOWN OR OTHER
The DAW (Driver Attention Warning) system is obtrusive and a distraction to safe driving. The alert makes an audible "Beep" and the drivers display lights up with a warning to "Take a break". This alert will continue every 5 minutes if on a winding road until the car is stopped and the engine is turned off. When operating the vehicle in a safe manner keeping my eyes on the road and having the beeping and warning lights distracting me is quite the opposite of its intended purpose. In previous year models this could be turned off by the owner. This is not so with the 2024, 2025 models. This is not isolated to this vehicle but a search of the internet will find many frustrated owners all voicing their concerns. A safety alert system should not become a safety hazard. The dealer has no solution. The alert system cannot be turned off or it's sensitivity adjusted. The manufacturer has so far not responded to my complaints.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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