Electrical System Problems of Hyundai Kona - part 2

Hyundai engages emergency parking brake epb) automatically when in parked on an incline. The epb will disengage under normal operation if all doors are closed. If doors are open, epb will not disengage. If going from park to drive, this is not a problem. However, if in drive, traveling with trunk open for oversized cargo, the vehicle will drive normally until a stop on an incline, when the epb will engage automatically, and then when the driver tries to proceed from the stop, their vehicle is disabled. The driver can provide power to drive train and burn the epb. The driver must manually intervene after every stop on an incline to disengage the epb to avoid being disabled at an intersection.

See all problems of the 2024 Hyundai Kona 🔎.

When I first brought the car for its first service appointment (6 months after purchase), I informed the service dept at the dealership that the car seemed to accelerate itself when I was driving. They said they hit a reset button and that I shouldn't have any more problems. What I found was that the car then drove sluggishly but it did not accelerate anymore. Recently however (2. 5 years into the purchase), the car started "sliding" when I hit the break pad. I took the car in again for service a few months ahead of time and they said that my car mat was wedged under the break pad and that was what was causing the car to slide when I hit the break. The car slid but also accelerated by about 5 miles, however I was able to quickly break and stop it without incident. This last service was on Friday, August 1st, and on Sunday August 3, the car slid and accelerated again - without the floor mat being wedged under the break. On Monday morning (August 4th) I called Hyundai so many times that I lost count. I was never able to speak with a service employee but I was given an appointment for a week and half later. According to chatgpt, it is a common issue with the 2022 Kona and it should be recalled.

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The car shuts off at random times during me driving . Its like the car locks up steering and shuts completely down . Have to pull over and give the car time . And it shuts back on in and drives with poor accelerate after each issuse. The car is now shaking and making popping sounds while driving .

Horn was going in and out of working for the first few months after purchase. Now the horn does not work at all. It is not the fuse. As seeing through other complaints this is a very common problem and should be on Hyundai to fix.

The horn is not working in my vehicle. I found this out today when I almost had someone collide with my vehicle while I was on the highway, not once, but twice. I was unable to use my horn to alert the other driver. I called Hyundai and they said it is not covered under warranty and this is a known issue with my vehicle. I have only had the vehicle for 3-4 months and this should not be happening. I cannot safely drive without a horn and if something happens to me or my vehicle and Hyundai knows its an ongoing issue with this year, make, and model, I am not sure what I can do. Please make this right.

See all problems of the 2023 Hyundai Kona 🔎.

I was driving at 930pm in the dark at a speed of 30 mph and the car completely shut off all power. No warning signs. Just completely lost power. No headlights or interior lights. I was able to brake and stop the car and restarted it to continue on. Lu ckily I was on neighborhood roads with street lights and little traffic. This could have been extremely dangerous on a road with no lighting and a high speed. I am now scared to let my new teen driver use this car and we bought the car for her! the car was at 47 percent battery and only has 5000 miles on it. Seems in my current research this is somewhat common for Hyundai. Please make them fix this before someone is seriously injured!.

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Horn keeps failing.

The dashboard lights, hud and exterior lights all have been turning off for 4-5 seconds every 6-8 weeks for the last 14-15 months. The brake and accelerometer remain active but because of the situation it presents every time, all that can be done is stray straight and try to look for a safe lane change.

Dear customer care, I am the owner of a 2023 Hyundai Kona awd purchased brand new from vision Hyundai west henrietta, NY. I paid for the vehicle in full with a cashier's check totaling over $31,000. At just 64,000 miles, the vehicle has become undrivable-experiencing loud noises, jerking, and no acceleration. I was driving and car would not move. These symptoms are clearly drivetrain-related and should be covered under Hyundai's 10-year/100,000-mile powertrain warranty . When I contacted the dealership, I was incorrectly told my roadside coverage had expired at 36,000 miles, Hyundai warranty escalation letters which contradicts Hyundai's stated policy of 5 years/unlimited mileage. Additionally, I requested a loaner vehicle due to the urgency and distance (I'm 80 miles away), but no one followed up, leaving me stranded and without any transportation options. I am requesting Hyundai's assistance:.

For the second time in 6months, the horn has stopped working. Coastal Hyundai in melbourne FL replaced the first horn on 1/14/2025. On [xxx], the horn has stopped working again. Information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

My horn on my car has went out the first time and now it just went out again and it’s a manufacturing issue! Hyundai refuses to fix it because it’s not under warranty anymore! and it’s so dangerous now since I don’t have a horn again! I should have not have to fix it when it’s not my fault! and other people have the same issue with your Kona’s to! the dealership even told me that’s it’s been an issue with the horns!.

Hyundia has had my car in for the same recall 4 to 5 times . 6 total weeks this time around. The ""refill inverter coolant" light kept coming back on . The last time I got it home it had more issues than when I took it in and wouldn't even catch a charge . (ev) they fried my compassitor trying to fix the inverter coolant recall . I then took had to pay 450 for a diagnostic ' (kerry Hyundai alexandria) they said electric motor is bad and will cost 8000 to 9000. Got a 2nd diagnostic (jeff wyler Hyundai cincinnati) completely different result- zero mention of motor ' said ac compasitor failed. (had no issues prior to them working on the original recall ) the light for the recall is still on by the way and they want me to pay 3500 for new ac capacitor . (600 diagnostic included in that price ) " the dealership’s failure to properly perform the inverter coolant refill recall directly caused the ac compressor failure in my 2021 Hyundai Kona ev. Before taking the vehicle in for the recall, the ac system was fully functional, delivering cold air without any issues, and the car experienced no charging problems, indicating the battery and cooling systems were operating normally. The recall, intended to flush the inverter cooling system and replace the crystallizing bsc-1 coolant with bsc-2, was not completed correctly, as evidenced by the dealership’s admission that they couldn’t fix it. This botched service likely left air or debris in the cooling system, which, in Kona evs with a heat pump, could overwork the ac compressor used for battery cooling during charging. The compressor’s failure shortly after the recall service, despite no prior issues, strongly suggests that the improper coolant flush caused undue stress on the compressor, leading to its $3,000 failure, which should be covered under warranty or as a goodwill repair due to the dealership’s error". [xxx] information redacted pursuant to the freedom of information act (foia), 5 u. S. C. 552(b)(6).

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Rear latch unlocks while vehicle is running or not running up to 30 times at once. Rear latch unlocks without key being in vehicle. This has been reported to Hyundai motor America since August 2025. The front collision warning goes off at random times, left side departure goes off at random times.

5 minutes into my drive my the whole dashboard (speedometer and music screen) all went black, & my headlights went out. This lasted for about 3 seconds. Not sure what happened or why but not something that should happen with such a new car.

The hvac drainage system in my 2021 Hyundai Kona failed due to a clogged ac drain line, which led to water leaking into the cabin and mold growth. The dealer reported the drain was blocked by a spiderweb and that moisture had collected under the driver and passenger carpets. They unclogged the line, but did not inspect beneath the carpet or inside the hvac system. Soon after, I experienced musty odors, asthma flare-ups, and headaches while driving. At-home mold tests under the passenger seat and footwell came back positive. White mold was also visibly growing under the carpet. A similar issue occurred in my fiancé’s Hyundai elantra, also purchased from the same dealer. His ac drain was clogged and mold tested positive in the cabin, though his car had no smell. Our vehicles are stored in different environments, which rules out external environmental causes and points to a broader design flaw. There are Hyundai forums online confirming this same issue is not isolated to us. Even if spiderwebs were involved, a single web should not disable a critical drainage function and cause health risks. Hvac systems should be designed to resist common environmental factors like debris or insects. I am a cancer survivor (diagnosed in 2024) and must avoid environmental toxins like mold. Despite repeated outreach to Hyundai and the dealer, I was told no inspection or remediation would be provided beyond detailing, which is not sufficient for mold. Component that failed: ac evaporator drain tube confirmed by dealer: yes manufacturer inspection: no – Hyundai declined to investigate safety concern: yes – mold has triggered respiratory symptoms and makes the vehicle unsafe for passengers.

Significant mechanical and drivetrain problems: ? loss of drive power and sluggish acceleration: reported as early as November 7, 2024 ("bumpy driving, grinding and clanking noise"), with issues worsening by January 2, 2025 ("slower acceleration, bumpier ride, metal clinking and cracking sounds"), and most severely on June 6, 2025 ("car shifts hard to the left then goes back and forth (wobble)," "greatly reduced" power, and "snapping" noises). You've had at least five repair attempts for these issues. ? vehicle shaking/wobbling: this has been a recurring complaint since November 18, 2024 ("car shakes when accelerating") and continued through multiple visits, including may 21-27, 2025 ("wobbly feeling"), June 6, 2025 (shifts "back and forth (wobble)"), and July 16, 2025 ("bounces excessively"). ? loose steering/difficulty turning: you've reported "difficulty turning" and "resistance when turning left," with a feeling of "less control" or "lack of control" while turning. This was noted on November 18, 2024, and persisted through April 14, 2025, and July 16, 2025. ? noises from underneath the vehicle: complaints include "grinding and clanking noise" (November 7, 2024), "loud noises" (November 18, 2024), and "metal clinking and cracking sounds" (January 2, 2025), and "snapping" noises (June 6, 2025). • electrical/infotainment system malfunctions: ? interior and exterior lights turning off while driving: on January 2, 2025, all interior and exterior lights turned off for approximately 3 seconds while driving. ? bluelink service and infotainment system disconnects/shutdowns: ongoing issues with bluelink service, including loss of connectivity and interruptions. • numerous repair attempts and days out of service: ?at least eight separate service visits for these issue.

The car was unable to charge using level 3 DC fast chargers, necessitating the use of a level 2 charger for an extended length of time in order to be able to return home. A Hyundai dealer replaced the charging inlet lock actuator (invoice attached).

A week after I got my 2025 Hyundai Kona limited, while trying to have the moonroof when headed into the highway since it gets too noisy if left open, the glass will touch the guard and then back away and remain fully open. However, the issue becomes more serious when it starts to rain or snow as it will remain open. In three occasions, the moonroof will not close. During a downpour, I had to use a large umbrella to avoid water to flood the car. Had I not had an umbrella or something to prevent water from getting in, the vehicle electronics could have become damaged including my personal belongings including but not limited to my sensitive medical equipment. Had I been in a snow shower, I will have gotten sick with a cold. I had reported the issue several times to different dealers and they only say it needs to be cleaned and reset. I had a sonata with the same moonroof for over three years and I never experienced such an issue.

I have had my horn replaced three separate times at my local Hyundai dealership. It recently passed the nc vehicle inspection, but the horn failed the third time sometime after that inspection in Feb-2025. I have never had a horn ever fail on any car I have owned for the past 50 years. A horn is a critical safety necessity and it is expected to work - especially in times of emergency. I was almost run off the highway, once by a semi-trailer and each time I discovered my horn had failed - it was due to my needing to use it to alert pedestrians or other motor vehicles to avoid accidents. The dealer would not reveal why this has failed three times except to state that they 'replaced the horn'. The dealer is the only one to have attempted an examination, diagnosis and supposed repair for this problem. There are no warning lights or other type of notification that would let me know of a horn failure. The only way to know that it had failed - was my immediate need to employ the use of the horn in an emergency - and it's silence aka malfunction at the worst possible times.

A few different days over the past few months. Driving heated seats stopped working. Check engine warning light on intermittently. Key fob not working. Multiple error codes stored in system cleared by dealer. Shut down the car screen has stayed on. Ac light has stayed on when car is off. Screen has turned off “check you back seat” upon leaving the car heard the engine still on 3x. At the gas station turned off the car, miles to zero reading 5, p park stays on, odometer reading on. As tank filling miles to zero rapidly increased from 5 to 300. I have a video of this. Been in for service multiple times. Presently at the dealer. They r unable to replicate this. They do not seem concerned about this. I feel it is a safety and operational concern. Prefer by car not be communicating even with itself while I’m pumping gas. They want me to pick up the car. I do not wish to. I have asked if miles to zero reading is supposed to increase real time I would like to see this is the manual or other documentation. Otherwise I feel it is a huge safety risk to have my car not shut down when I ask it to. What’s to say it won’t shut down while I’m driving 75mph on the freeway? thank you.

While driving the vehicle the digital dashboard for the rpm's and speedometer, infotainment center, accent lighting and all exterior lighting including tail lamps, head lights, turn signals and marker lights all powered off for approximately 2-3 seconds. During this time, the engine continued to run as if nothing had occurred. After the 2-3 seconds all affected systems that shut down turned back on and continued as if nothing had occurred. Even apple carplay had no signal reconnection time, almost like it was never disconnected in the first place. This issue appears to just shut down all outward lighting/indicator lamps and then power back up. This issue has repeated itself on 5 separate occasions over the course of the last 3 days. Took it to a dealer on the 4th day (today, March 6th), and they could not get the issue to replicate despite driving for 30 miles and having it for 3 or so hours under their care. No codes were logged, no indicator lamps showed an issue and no erratic driving or lasting effects of the power blip. Outside of the dealership this issue has not been inspected further. A contact was made with Hyundai USA in attempt to address this safety issue. No reply has been received since submitting yesterday afternoon. This issue has happened during the day as well but given the lighting conditions is not as dangerous as losing all head lamps or tail lamps at night where the driver or other drivers may be affected as they travel about the roadways in the case of merging on and off of a highway or being able to see any animals that run into the roadway.

The horn stopped working. The first time, replacing a fuse fixed it, the second time I had to go to the dealership to get the horn replaced under warranty. There were no warning lamps.

Vehicle has problems shifting between 1st and 2nd gear. Stutters and has issues accelerating. Has almost caused me to be hit while turning left against traffic. Was serviced at Hyundai dealership today and they cannot replicate the issue or find anything wrong and reprogrammed the clutch touch point engagement. It happened again on the way home.

See all problems of the 2020 Hyundai Kona 🔎.

1. Driver’s side door locked up and it is impossible to unlock from the inside of the car manually or electrically. The door cannot be manually opened up from the outside or the inside of the car. 2. My safety has been put at risk because of not being able to exit the car in case of an emergency. 3. Not yet. I have an appointment on 1/15/25 to get it looked at. 4. The car part has not been officially inspected by anyone yet. 5. No warning lamps appeared prior to this part failing.

See all problems of the 2019 Hyundai Kona 🔎.

The cars battery drains to the point that it will not start or allow entry into the vehicle. This happens when vehicle is sitting and not running. All lights, screens, etc. Are off when this happens also.

Twice my car wouldn't come on at all. The first time they put a new battery in even though I had it only 2 weeks and it's a 2024. The second time was today. The engine would not come on. My inside lights were blinking but the car wouldn't start. The lights went out on the inside but when I went outside the car, my outside light were blinking real fast. This lasted for about 15 minutes and then they went dead. The whole car was dead and had to be towed to the dealership.

Car will stop running and not start back up when stopped at a light or stop sign sometimes. I have started driving with the auto start stop off because I will be stuck at a light or stop sign because it will power off but not come back on again. This has occurred several times. The dealership told me there was no issue 11/22/24 but were willing to sell me another battery if I wanted to just replace the battery. The battery would test fine and then not and then fine again. I did price battery’s and they tested my battery at auto zone when pricing them and it tested fine with them also. They did not feel like it was a battery issue. I don’t either now since it stays on no problem when I turn off the auto start stop. There is something honestly wrong because if I leave that feature on, it will power off and sometimes stay off. The first times it happened was in November 2024 but it keeps happening. Sometimes I forget to click off the auto start stop and it will happen to me again but I shouldn’t have to turn that feature off to prevent my car from shutting down and not restarting when stopped.

As I was driving home, my Kona started slowing down until it totally stopped. I tried the the gas pedal again but it didn’t move, electrical was on, no warning lights. I turned my Kona off, turned it back on again and drove the rest of way home. I was lucky I was on an empty road no other cars behind me as I drive everyday to and from work. I called Hyundai dealer next morning about the problem ,he did asked if I had heard a knocking sound. I said yes ,the week or so I heard a knocking sound twice but not for long, seemed to have disappeared. I didn’t want to drive the car to the dealer afraid it would stop on the highway so I had it towed. Service person said he would check if it is under warranty but there is no recall on my Kona.

The contact owns a 2024 Hyundai Kona. The contact stated that the vehicle was equipped with alarms set to sound off and send a text notification when the vehicle was accessed without the key, key fob, or remote access being activated. Later, the vehicle began displaying additional electrical issues. The contact stated that the instrument panel would illuminate intermittently and display different warnings and systems being activated; however, the contact was unable to recall what the lights that were displayed. While driving on a forked road, the lane assist feature prevented the vehicle from being able to veer left, keeping the vehicle driving straight. The contact used excessive force to steer the vehicle to veer towards the left. The vehicle was taken to the dealer, who was unable to diagnose the cause of the failure. The vehicle was not repaired for any electrical failures. The contact received notice of a recall for the software regarding the theft prevention system, needing a software update. The vehicle was returned to the dealer, and the remedy was completed. While attempting to accelerate after being idle at a red light, the vehicle failed to accelerate as intended. The contact turned off the vehicle, waited for a while, and then restarted the vehicle, at which time the contact was able to continue driving. Several unknown warning lights were illuminated. The vehicle was returned to the dealer, who diagnosed that the software update caused the battery to drain quickly. The battery was replaced. The manufacturer was made aware of the failure. The manufacturer opened two cases for the failures. The failure mileage was approximately 9,500.

7 months old Kona with 700 miles on it. Woke up one morning with a "totally" dead battery. The internet is full of incidents such as mine--new Konas with dead batteries. The dealer could not give me a service date until one month later. Car is still at the dealer. . .

August 2024: horn malfunction/failure. Pressed the car's horn, and it failed to produce the loud sound that it is supposed to make to warn others of possible danger. It continued to not work and needed to be replaced for the third time. Part 96611-j9500 (horn assembly) was replaced for the third time on this vehicle.

Transmission need to be replaced.

I purchased this 2022 Kona used with 12,000 miles in April 2024. On 4 occasions it has failed to start. When starting the vehicle with push button I only heard a series of clicking. There was no other sound made while trying to start the car. My husband had a remote jumper and attached it to the battery as directed on the jumper, then pushed the start button. The vehicle started immediately. The vehicle then ran normally. I episode occurred after the vehicle sat while we were away for 2 weeks on vacation. Again, using the remote jumper, the vehicle started immediately. Another occasion, the vehicle was driven that day and when attempting to move the car from the driveway into the garage, it once again failed to start. Just a series of clicking sounds. Application of the remote jumper once again started the car immediately. On the 4 th occasion (today 6/25/24) I was stopped at a traffic light waiting for the right turn arrow to appear. It was raining hard. The vehicle cut off (as it normally does when idling while stopped) then the dashboard went dead. The safety flashers would not work nor could I restart the car. This time there was no sound or clicking. I exited the vehicle in heavy rain and traffic, got the remote jumper from the trunk, raised the hood in the rain and heavy traffic and proceeded to attach the jumper to the car battery. The car started immediately. This last occasion of the vehicle shutting down was extremely dangerous. As I stated it occurred in a heavy rain in a very congested and heavily traveled city road. Visibility was poor due to the weather and lack of safety flashers (toledo, ohio at the corner of monroe st and secor Ave). I was fearful standing outside the vehicle with so much traffic. I was blocking the right turn lane so people behind me were not happy. I am 70 years old and unable to push it to the side of road. I believe that intersection has a left turn lane, 2 straight lanes, and the right turn lane.

While driving, my car completely turned off and the dashboard say “engine turn off”. This happened on two separate occasions. Also on separate occasions while I was driving the beep to indicate that I was too close to another car went off when I was not near another car, during that time it also emergency breaked on its own.

The contact owns a 2024 Hyundai Kona. The contact was away from the residence for several weeks, and after returning, while attempting to start the vehicle, the vehicle failed to start. The contact called for roadside service who was also unable to start the vehicle. The contact had the vehicle towed to a local dealer. The dealer determined that the battery had failed and needed to be replaced, along with the battery terminals and electrical wiring harnesses. The vehicle was repaired. The contact stated that the vehicle had started to exhibit electrical failures. The contact stated that while starting the vehicle, the instrument cluster failing to boot up properly. Additionally, the contact became aware that the fan was blowing air independently. The contact had taken the vehicle to another dealer. The contact was advised by the dealer that the vehicle needed to remain at the dealer for a week for further testing. The vehicle was not diagnosed or repaired. The manufacturer was informed of the failure. The failure mileage was approximately 941.