Table 1 shows one common electrical system related problems of the 2022 Hyundai Sonata.
| Problem Category | Number of Problems |
|---|---|
| Electrical System problems |
I have noticed puddles under/near rear side door/tire, the smell of gas after filling up tank. And a reduced mpg lower than normal with same driving habits.
Vehicle will not start. This is the fourth incident where vehicle will not start. It has had the software update, battery and voltage regulator replaced in the summer of 2025. In Aug of 2025, vehicle will not start with jump or use of 12v battery in vehicle.
Initially vehicle battery is drained after three days of sitting in driveway and not being used. Vehicle has been taken in to dealership in July 2025 and found the 12v integrated battery was faulty and was replaced after being on backorder for three weeks. After battery was replaced the vehicle battery is drained after five days of sitting in driveway and not being used. No lights are left on, no aftermarket accessories are plugged in or attached to the electrical system. This has been an ongoing issue and the dealership I initially worked with has now had my car 3 different times and over four weeks and have stopped returning my phone calls. I have just sent my car do a different dealership and have been told it may take up to 2 months to diagnose the issue. I cannot open the door or start the car without using the emergency key, when I gain access to the car the 12v battery reset button rarely works to power the vehicle again. This is something that the dealerships are aware of, but have no idea what the actual problem is. Please for the love of god help.
Purchased vehicle on March 5, 2025 from a dealer. At the time it had approximately 20,000 miles. Within days of purchase, the car would not start even after pushing the battery reset button. Eventually, it would restart, but the time it took was considerable. Took the car to the Hyundai dealer near me and discovered that it had been with them for two months prior to purchase for the same problem. They have replaced the 12 v battery and possibly the hybrid battery, but now after owning it for about six weeks, it is giving me a message that there is a problem with the hybrid system and I should stop driving immediately. It is now back at the dealer. They can’t seem to duplicate the problem and I don’t feel safe driving the car because I don’t know if and when I’m going to get to my destination.
I am experiencing an electrical malfunction with the driver-side door controls and side mirrors on my 2022 Hyundai Sonata limited. The buttons on the driver’s door panel intermittently stop responding, and the lights on the panel flicker. At the same time, the side mirrors move up and down randomly, without any input from me. This issue occurs while the vehicle is both stationary and in motion. This malfunction affects the visibility and safe operation of the vehicle, as it can disrupt mirror adjustments while driving. I am concerned that this could be a potential safety hazard, especially at night or in high-traffic situations. I have researched online and found that other Hyundai owners have reported similar electrical issues with door controls and mirrors in recent models. I would like the NHTSA to investigate whether this is a widespread issue and determine if Hyundai needs to issue a recall or a technical service bulletin (TSB) to address this safety concern.
I brought my car in for electronic update recall. No issues before service. After service, dealer tells me that my car in inoperable and the 12v aux battery needs to be replaced. The battery was swollen. There were no indication before bringing the car in for recall that there was a battery issue. Possible fire hazard.
Went to lower the ac fan speed earlier then went to turn it back on and the whole blower stopped working.
When I have my car parked without starting for 3 or more days, I get a alert that my 12vdc battery is low. When I get back to my car, I have to use the physical key to unlock and push the 12 dcv button to jump start the system. The cover over the door latch has to be taking off with the key to access it and is very hard to remove. This is a safety issue, especially for someone who may have a disability. It tool me 15 minutes to remove the cover because I had to pry it off with breaking it. I got to the point of just pulling it off before I leave home and putting the cover in glovebox because I park at the airport for work trips. These has happened 3 times. If these is the case, Hyundai needs to make the manuel key access accessible.
The car has completely lost power. Can not enter. Have to use the mechanical/physical key on the fob. Its been happeneing 7-8 times in the last year. It has a battery reset button we reset it from the dash which has a dedicated button just for this?.
Since a few weeks after buying the car new, the battery dies and self resets every few weeks on average. No error codes occur, but the car had clearly lost power while parked, indicating an issue with power management. For the last could months, car now has 26-27k miles and is 21-23 months old, it had mostly stopped resetting. It now is dead when I go out to it, even after only a couple hours of it being parked at night or during the day. I have to manually access the car and use the battery reset button. They observe no error codes. I have read other people have the failure while driving and fear and electrical issue could be a fire hazard. At the very least, it is a personal safety issue in making me take time to access my car, which could increase my risk of being attacked while trying to get into my car safely. It has occurred 5 or 6 times since August 21, most recently on October 8th and 9th.
As I was driving my dashboard lit up with warning lights and audible alarms indicating that I should inspect my regen brake. Safety features such as lane departure, lane assist, blind spot indicator stopped functioning and my speedometer did not work. I stopped the car and looked behind the front wheels and nothing looked “unusual”. I restarted the car and all of the alarms went off again, leaving me without a speedometer or the safety features mentioned above. I scheduled an appointment with my dealership explaining what had happened. They did a diagnostic test and determined that it was a faulty e brake module that needed to be replaced but is on back order with no parts available in the us to order. Furthermore they do not know when a replacement is available. They reset the sensors so that my safety features were restored. This is the second time within a 14 months of purchasing the brand new vehicle that electrical systems have needed to be replaced. The first time was a faulty wiring harness located in the trunk area that the dealership had said “must have been damaged during installation at the factory”. Again-when I driving at highway speeds suddenly the alarms and warning lights were triggered-leaving me without the same safety features, speedometer and power steering/brakes. The dealership was able to replace the wiring harness and the problem seemed to be resolved until this latest incident.
The car will not lock, the signal lights do not function, I cannot open gas door, cannot unlock trunk. I took the care to the service center and they just told me it was the junction box. I saw there was a major recall to this same car for this same problem with 2016. If this is a manufacture issue I think it should be covered by warranty but they are refusing to fix without me filing an insurance claim. My car has been inoperable since June. The hazard lights are on and I cannot operate the vehicle safely without repair of the junction box per service center at Hyundai of greenville SC.
I first noticed an issue with the voice resignation which also is effecting the messages navigation phone and just recently the lane assist and radar. For 2 weeks I have tried to address this with Hyundai customer service with no proper response the dealer service I stating the computer head is at fault but they have no idea when they will get one from Hyundai. I know the service people will be keeping the car for week to resolve this since the whole dashboard will be removed. I was told a representative from hyundi will be contacting me on the 5th wich I doubt will happen because when I had a problem in April 2023 I was told the same thing I had the phone nearby all day and no one ever called and I am assuming the same will happen on the 5th. This is not a dealer or service dept issue it's a hyundi problem and I am reluctant to use any of the assisted driving or rely on the safety components that this car is individually installed with.
While entering the highway as I began to accelerate. The car symbol engine over heating was flashing on the dash board. It was close to the h on the dash board. I pulled off the road. The car cooled immediately. After I turned the car off to get gas, the check engine light came on. The light is still on.
Shifter system malfunction service immediately was displayed on my dash 10+ times which caused me to not be able to shift my car out of drive or whatever gear I was in when this occurred. I was at an intersection and when I was coming to a stop the car displayed this error code and wouldn’t allow me to go until I turned the car off and on twice till it was able to reset back to park then allowing me to start and shift to drive to actually go. This jeopardizes my safety and the safety of others considering my car could give out or not change gears at any given point. This is extremely concerning. The problem has not been reproduced by the dealership but has been in 2 times for this issue within a month. I took pictures and showed it to the dealership and they said Hyundai won’t cover it. They felt bad and believed me so much to the point their service department is covering the cost of the transmission shifter module (tcm) in hopes this will resolve the issue. Only a Hyundai dealership has worked on my vehicle.
I bought my 2022 hybrid Sonata in the summer of 2022. I drove it down to the beach (8 hour drive) about a week after purchasing the vehicle so at that time there were less than 100 miles on the car. We didn't use the vehicle for the week we were at the beach and when we tried to unlock the car to load our bags, the key would not unlock the car and we couldn't get in. We had to manually unlock the doors and call roadside assistance because the battery reset button would not jumpstart the car. I was assured that there was no issue with the car by my local Hyundai dealership and that this was "normal. " I have had the car die on me countless times while it sits idle in my driveway if I don't start it at least every other day. On August 8th 2024, my car was dead and I was able to jump it with the battery reset button. The next day, it was dead again. Upon jumping it for the second time in 24 hours, the check engine light came on. I took the car to the dealership to run diagnostics and the hybrid battery has failed their tests. Now I am waiting on my car with a loaner vehicle that I cannot drive out of state. I was told by customer service that they have had this problem with several other customers and some had to wait two years for their battery to arrive and car repaired.
Our 2022 Hyundai Sonata completely shuts down while driving. We purchased the vehicle in may 2022 and since then it has died over 10 times and has almost caused multiple accidents. We have 3 video footage that we have shown Hyundai corporate and the dealership service technicians. They drive the vehicle a few miles and give it back unable to duplicate it. Hyundai refuses to buyback the vehicle due to safety concerns. We do not know what more we can do and have been working on this since August. We no longer drive this vehicle as it is too dangerous and will eventually cause an accident.
Trying to return home(alabama) from louisiana, I tried using my key fob to get in my car, key fob was not working so I replaced the battery, still not working. Finally was able to get in my car by using the key, only to open the door and had no power to my car, no dash or interior lights. Had to car road side service, they jumped the car off long enough to get the car in neutral to get it on the tow truck and towed to the dealership. Now stuck out of state until the dealership can "get time" to look at my car. This is a brand new car and really didn't expect this but again no matter if it is just a battery issue or something else, Hyundai's car has let me down and left me stranded. This is a huge problem especially when I need to get back home to family and my job so I can pay for this car.
1. Solar panel roof exploded without any impact. 2. Vehicle completely shuts down when the solar panel over charges the battery.
I’m reaching out to report the troubles and functioning of my Hyundai Sonata 2022. I am the first owner and received the car January 7, 2022. The car started with a loud nose under the hood . That happened maybe four times. Then the car began to switch gears on its on. I would park the car and press p for park but the car would go to n instead . That happened about 20-30 times . Now the car is randomly switching gears while at stop lights. While at a pause the car automatically shuts off which is normal. Recently the car would be at a light and switch gears . I was at a light when the car shut down and went to d, n , and stayed in r. I had to cut my car off just for it to go to p and then d , all while the light was red. If I didn’t, I would have backed into the person behind me . The self driving is not accurate at all and the car does tries to play blue tooth and apple play at the same time . I’m reaching out because I’ve been to the dealership multiple time to have it checked out and they found nothing wrong. I will be making another appointment for this Friday, may 6, 2022. I need to know what is going to be done and how should I go about this if it is said that nothing is wrong once again .
The bluelink subscription service for my Hyundai Sonata includes a feature to see the diagnostic codes my car has or has had. Attached is a document with all of the dtcs my car has reported since I purchased it new in November of 2021. There are 15 stored codes (not active) but they are still concerning to me because they have appeared from before the car was built to about 1000 miles after I purchased it. 5 codes are for the lane keep assist system, 1 for the electronic stability control, 5 for Smart cruise control, and 4 for the tire pressure monitoring system. Three of the codes occurred after I purchased the vehicle with absolutely no warning or indication of any fault regarding the lkas system.