Hyundai Sonata Complaints (2023)

85 consumer complaints on file.

#11636585January 17, 2025
FUEL/PROPULSION SYSTEM, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
I was driving into work on a major road (about 45 mph) when my 2023 Hyundai Sonata stopped accelerating and my engine gave out. Initially I thought I was accidentally pressing on my break pedal but when I realized I wasn’t pressing the break, I had just enough time to turn on my hazards and get out of traffic and onto the shoulder of the road. I was stuck between a main exit and the major road. My battery, oil, and engine lights came on (no service lights had been on prior to this incident) and my car was just very slowly rolling before it automatically engaged my parking break - which makes me fearful of what would have happened if I had still been in busy traffic. I could gotten very badly rear-ended. My car only has just over 5600 miles and I never had any issues with it before and kept up with the general maintenance. I attempted to restart my car to no avail and about 30 minutes later I was able to restart my car but there was a very strong vapor smell in the cabin of my car. I got my car towed to a dealership and was informed one of my fuel injectors was misfiring/gone bad - similar to many other incidents on this site. I asked the dealership if they were able to view the state of my other fuel injectors and was told they were unable to do that, so I am unsure if other fuel injectors will go bad in the future.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11632905December 28, 2024
FUEL/PROPULSION SYSTEM, UNKNOWN OR OTHER
Twice within the first 26k miles i had 2 individual fuel injectors go bad. Both times my check engine light came on in the middle of driving, and then my car would no longer increase in speed and left me stranded on the road. Luckily, i was able to pull over to the side of the road. The random malfunction of the vehicle could’ve caused an accident or put my life, as well as the drivers on the road, in danger. When my vehicle arrived at the dealership, i was told that it was “because of the gas i was putting in my car”. I have never had any problems with any other vehicle when using the same gas, and have never heard of it from anyone else except from people with the same make and model as me. The dealership refused to replace the other 2 remaining fuel injectors because “they aren’t in need of repair” but acknowledged that I will just have to wait until the other 2 fuel injectors go bad and possibly be stranded in the middle of the road again. When picking up my vehicle after the seconds repair, I was told that my timing cover was leaking oil and that was repaired as well. When asked how that happened, the service center told me it was a factory malfunction. The first incident where Cylinder 2 went bad was on 12/27/2023 at 13,143 miles The second incident where Cylinder 3 went bad as well as the leaking timing cover was on 12/2/2024 at 25,890 miles
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11630937December 16, 2024
FUEL/PROPULSION SYSTEM
I bought the new car on 11/21/22. There have been two incidents with the same cause. Incident #1: On 1/25/23, while I was on a six lane highway with high speed traffic and rush hour level traffic, the car began to fail, with 'bucking', failure to respond to the gas pedal, loss of power, and difficulty steering. At that time, the check engine light also went on (it had not been on previous to the event starting). I was able to get the car off the highway, where it completely died - it would not move. It was towed. Mileage at this time was 1,330 miles - the car was 2 months old. It was diagnosed that "Cylinder #3 fuel injector is stuck open causing drivability issue". The likelihood that I would have been hit, by another car on that multi-lane highway with cars at high speed, and hurt or even killed is extremely high, if not certain. I did not file a report with NHTSA about the first incident (I was not aware of this service.) Incident #2: On 12/7/24, while I was again on a six lane highway, high speed traffic, night darkness, rain, and rush hour level traffic, the car began to fail in the exact same way as in 2023, 'bucking', failure to respond to gas pedal, slowing, difficulty steering, etc. I was able to get off the highway before it completely 'died'. It was undriveable and had to be towed. There was no warning light prior to the event occurring. Mileage at the time was 21,091. The probability, considering the rain, the dark, and the fact that I was on a 'super highway', that I could have been hit, hurt or even killed is extremely high. The diagnosis was 'TSB indicated #3 Fuel Injector be replaced." I do not have any of the old fuel injectors. In addition, I routinely - multiple times a week - have small children in this car. These events could have happened when I had a carful of small children with me. My routine schedule means there was also the high probability of others being hurt.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11623669November 5, 2024
FUEL/PROPULSION SYSTEM
Fuel injection systems failed At 5000 miles cell 2 At 15000 miles cell 3 Under warranty but although tech said other two would fail prematurely Hyundai would not replace cell one and 4 As these failures happen suddenly without warning while driving I feel this is a serious safety hazard
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11622850October 30, 2024
FORWARD COLLISION AVOIDANCE: WARNINGS
During snow and icing conditions the forward collision radar in the logo gets covered up and becomes inoperable. This at the very time that we most need forward collision warning. It would helpful if there was electric deicing in the unit, much like the rear view side mirrors.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11622260October 28, 2024
SERVICE BRAKES
Since I have had the car, I would have to check my invoices for exact mileages, I have changed my brakes 4 times now. I only have 40k miles on the vehicle. This is very bizarre to me since I have owned a 2020 Hyundai sonata SEL convenience prior to this and never once changed the brakes. I have also changed my rotors once, resurfaced them another then, and I am in the process of changing them again. Now to this day, my calibers are shot. They will take 2 months on back order to come in from Korea. Maybe Hyundai needs to look into N lines in specific as I have read many people complaining about the same thing. It's 40k miles and I am just now needing to change my rear brakes, seems pretty reasonable. Something is very wrong with this car.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11622068October 26, 2024
ELECTRICAL SYSTEM, ENGINE, POWER TRAIN
For like the fifth time while I'm driving the car just dies. I can be going 55 I can be going 70 and the dashboard lights up like a Christmas tree and the car just dies. I have to pull the car over to the side and I have to turn it off and restart it again. And then about 3 days later the check engine light will go away. This seems like a software issue but Hyundai and my local dealer cannot help me I'm going to get killed in this thing. I can't take it on the highway I can barely take it down the street because it could go out on me while I'm driving and I could be in the middle lane and I could get killed. They tell me they can't replicate the issue but it's a software issue somebody needs to do something before I get killed. Every single light on the dashboard turns on and the engine just dies. This is like the fifth time this has happened. I think this car is a lemon but no one will help me.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11619305October 11, 2024
POWER TRAIN, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
On 4 occasions in the last 4 months when I push the gas my cars rpm will go up but the car does not accelerate. This has happened twice on the interstate when trying to merge with trsffic and twice in city traffic, once when making a lefthand turn across oncoming traffic and once just driving down the road. I have taken the car to 2 separate dealerships for a total of 3 times and they drive it a few miles and tell me they can't duplicate the issue. I just picked my car up today after leaving it for 6 days. On my way home the emergency breaking system activated for no reason slowing my car down on the interstate. Both of these issues could get me or someone elas killed. I have not even had this car for 2 years and I am afraid to drive it. Please help. I know I am not the only person with this issue because I can see others on the internet who also have been told that the dealership can't dupe the problem. Even the dealership I just picked it up from said they had another car there with the same problem that they can't duplicate so there is nothing they can do.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11618968October 9, 2024
FUEL/PROPULSION SYSTEM
While driving on the country side, my car engine stopped providing power to the car and started making some noise. The engine rpm would fluctuate and increase due to downshifting but there was no power. Luckily, the car had some speed around 50 mph, the road was slightly downhill and nobody was behind, managed to coast to a gas station half a mile away. The engine shut itself off after the car stopped. I was able to restart the car but it would shut itself off within 2 seconds of restart. Car was towed to the dealership and I was told that it had a faulty injector. The injector was replaced a week later and I received my car back later.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11615515September 19, 2024
ELECTRICAL SYSTEM, FUEL/PROPULSION SYSTEM
My name is [XXX] , and I am the frustrated owner of a 2023 Hyundai Sonata SEL. For context, I am a [XXX] woman who had never experienced the frightening event of a “brand new” car breaking down—until now. I am still in shock and trembling from the experience I had with my “new” 2023 Hyundai Sonata on the morning of [XXX]. At 9:30 a.m., I was driving on [XXX] . I was driving the speed limit (55 mph) and cruising along when, all of a sudden, as I went to accelerate, my vehicle instead began decelerating rapidly. I pressed the gas pedal, thinking I might have let up too much or accidentally had my foot on the brake. However, pressing the gas only caused the RPM to spike, with no change in my speed. I had to act quickly, paying close attention to the surrounding traffic as my car slowed down. Thankfully, I managed to maneuver from the far-left lane to the shoulder of the highway. My speed had dropped to around 30 mph and was decreasing. Trying to safely navigate a slowing vehicle on a highway filled with traffic is an adrenaline rush I wouldn’t wish on anyone. I was in a state of severe panic. As I steered the car onto the shoulder, I noticed it was shaking and struggling to move forward. White smoke was also coming from the exhaust. Once safely stopped, I put the car in park and turned off the engine to let it cool down. After a few minutes, I restarted it and noticed the engine, oil, and battery indicators were all illuminated on the dashboard. My first thought was a battery issue, but the car was still able to turn on. However, the engine did not start. A notification appeared, stating the car was not in a condition to be driven. After receiving the car back from the Hyundai Dealer I was notified that the issue was due to fuel injectors failing. 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
#11615169September 18, 2024
POWER TRAIN
I have been having transmission issues the whole time I've had the car. There is a delay upon take off, and it bogs down instead of downshifting. I was driving my son to school and made a left turn. It started to go but then delayed for 10 seconds before suddenly taking off. If the on coming traffic had been closer, they would've hit us. The dealer has reproduced the problem but can't get enough information for the tech line to approve a new transmission even though the dealership has repeatedly said that is what it needs. I've never had a warning light on it. it's been in the shop for it this time since 7/26/24.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11614018September 11, 2024
FUEL/PROPULSION SYSTEM
On 3 separate occasions the vehicle decelerated, lights flickered and stated to produce a burning smell through the engine. Each time the car would not allow me to accelerate and eventually stalled out. The car would no immediately start. After a few minutes it would start but not accelerate. After about 30 minutes it would start and would drive about 5-15 mph, enough to get me to my location. On the first occasion I was coming home late in the evening after working a 12 hour shift and had to have a family member get me after being stranded by the side of the road. The second time I was taking my 4 to son to his planned surgery in a bigger city and it broke down on the way. It was not safe driving in the city barely being able to excel but we did it for my son. The third time I was in a larger time in traffic and missed an appointment as I tried to stear my decelerating vehicle out of multiple lanes of traffic to a safe location. I could not use the air conditioner while I attempted to let it rest in 100°+ heat. Each time the lights would flicker and dim. There would be a smoke from the exhaust. After the first 2 occurrences we took it to the dealership but they were not able to replicate the problem or identify a causative code. During the last occurrence we were able to get it to the dealership very slowly and they deemed it to be the fuel injector malfunctioning. This was fixed after about a week or so of being in the shop . About a week or two after the fuel injector was fixed the check engine light came on. We took it back into the service department and they "reset" the system thinking it was an error. The light came back on in less than 24 hours. The vehicle has been running a little harder, not as fast or responsive as normal. A service/evaluation date was scheduled and the code was checked indicating it was likely the catalytic converter. We scheduled another service appointment once the part was in which is 2 weeks from the evaluation appointment.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11611733August 29, 2024
FUEL/PROPULSION SYSTEM, POWER TRAIN, SEATS
Hello, I have Hyundai Sonata 2023. The fuel tank of this car is expanded on [XXX]. I have never heard about this issue to any cars. I took my car to dealership they said they don’t know why this happened and they said they cannot fix it, my car at the dealership more than a month. I have created a case with Hyundai corporate office in CA, it’s been a month since this case was created and I could reach out to my case manager only twice for this period of time. They are keep saying they are working on it, but no results they don’t even look at my car. Today I barely could reach my case manager and she told me that this is not under warranty and I will need to fix it out of my pocket. When I bring the car to the dealership they told me this not under warranty since warranty was up to 60k miles, I have 90k I asked them to fix it and I will pay but they said they don’t know how to fix it. Today I have researched and found that this issue is really common among Kia K5 and Hyundai Sonata’s 2021 2024, I will provide a link here: [XXX] Please check this link and you can see that most of the cars fuel tanks are expanded and back seats popped up. I have same exact problem. Kia asked drivers to inspect the cars with this issue and they said they will fix it for free since this is fuel tank defect. But what should I do with my Hyundai Sonata. I have same exact issue as you see at the link I have provided. I had powertrain DTC PO451 since march of this year dealership said just check if gas cap is on properly, but this caused this issue I see Hyundai will not help me it will almost 2 month I don’t have my car and I am still paying for it, please let me know what I can do Thank you! 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
#11603350July 19, 2024
POWER TRAIN, ELECTRICAL SYSTEM, ENGINE
I was driving on the interstate at interstate speeds and the car started to lose power. I was able to steer the car to a safe location and call roadside assistance. It appears that the engine control system had a failure in one of the control modules. The problem was reproduced at the time that I dropped the car off with the service center. The history of the issues for the vehicle are available. My safety was put at risk because the car lost power at high speed and I was only able to limp to a safe location. No warning lights happened until the issue was already taking place. After being notified by my Hyundai app, I was able to discover that the vehicle had a history of having this code (I have only owned the car for 32 days)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11597602June 28, 2024
ELECTRICAL SYSTEM
2023 Hyundai Sonata Limited, 1.6 T. Battery discharged within 10 days while parked. This problem is well known to dealership. The dealership has to jump start cars and start them frequently on the dealership lot. It is impossible to park this model car at an airport or parking lot for more than a couple of days and maintain a battery charge. No warning or alerts. The problem is that the RESERVE amp hours of the standard stock battery is not adequate to supply the electronic drain of computers while parked.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11594317June 14, 2024
ENGINE, STEERING, FUEL/PROPULSION SYSTEM
On two separate occasions, one at @9500 miles and the next at @19,000 miles the car engine started shaking and lost all power while driving. Unable to steer car. Both times towed to dealer and they say it needs new spark plugs and need to clean cylinders. They do not know root cause of problem and have not done any testing of the engine, no leak/compression testing. Dealer refuses to cover cost of repairs saying out of warranty but cannot give any assurances this won’t happen again. I’ve requested they contact Hyundai engineers to find out what’s causing this and, to date, they’ve done nothing. Vehicle is unsafe to drive and is still at dealership with no reason to underlying issue.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11586734May 3, 2024
ENGINE, POWER TRAIN, FUEL/PROPULSION SYSTEM
The car would not accelerate, nor switch gear while I'm driving middle of the highway. The car engine started to shake after my car wouldn't switch gear. The car engine would not start after turning the car off and caused a engine misfire. The transmission gear has a hard time switching gear from 0-40mph. This same incident occurred twice since purchasing the car in late November 2022.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11583370April 16, 2024
STRUCTURE:BODY:DOOR, STRUCTURE
See attached document for complaint
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11581001April 3, 2024
ENGINE, VEHICLE SPEED CONTROL, ELECTRICAL SYSTEM
I have had three occasions where the dashboard lights would flash and the car would lose all power. The first occasion occurred on December 29th at around 12:20 pm at a crowded intersection. The dashboard lights lit up and all of a sudden the car had no power at all. I managed to get it through the intersection and pull it off to the side of the road. To start it up I have to TURN OFF THE CAR by putting it in park and start it up again. This is stressful and terrifying to think about if this had happened on the freeway. Additionally, I took the car to get serviced and was charged a $1,800 bill to fix it in January. This repair took two weeks to complete. The car has since turned off two additional times on February 15th going down a hill at 40 mph and March 26th on a mountain road going 60 mph. I am very concerned this will happen on the highway and I will get into a serious accident or worse. To make matters more difficult, I have taken the car back to the Hyundai dealer again to have it looked at in April and will most likely be without the car for at least another week. I bought the car brand new and the check engine light has gone off four times since then.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11576458March 10, 2024
ENGINE
2023 Hyundai Sonata N-Line bought on [XXX]. Engine Control System failed 2 times w/in first 4 months. 1ST ENGINE INCIDENT ● [XXX] (Approximately 1:30 p.m.) ○ I was driving (1,949 miles on odometer) at an intersection when car lost power, lights on dashboard starting flashing & ignition shut off in the middle of intersection. ○ On dashboard notification stated “A possible condition with your engine control system has been detected with your 2023 Hyundai Sonata [XXX] ) on [XXX] at 1:25 p.m. A full system check is recommended to be done soon”. I also received notification via email. ○ Couldn't get appointment until [XXX] Cesar advised me they did diagnostic test & test drive & couldn’t find the problem. They made no repairs & made a notification in system of this problem. He stated that if it happens again to bring the car back. 2ND ENGINE INCIDENT ● [XXX] ○ My husband & I were driving (4,177 on odometer) & I was pulling out of a side street to make a left hand turn into a busy 4 lane street & as I drove ½ way across street my car lost all power, lights on my dashboard started flashing, ignition shut off & two cars were driving towards us about to T-bone us my driver's side. Cars braked suddenly to avoid hitting us. ○ On the dashboard of my car was a notification stating “A possible condition with your engine control system has been detected with your 2023 Hyundai Sonata [XXX] ) on [XXX] at 1:15 p.m. A full system check is recommended to be done soon”. I also received this notification via email. Dropped car off at Fontana Hyundai on [XXX]. Did diagnostic test & engine specialists inspection; couldn't find problem They said we will replace this part and hope it doesn't happen again. How do you put someone back in a car when you haven't diagnosed the problem; that's a serious safety issue, my life is endangered. Supposed to pick car up [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

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