Severity
Category
Description
Crash
Filed
Safety
Potential Fire and safety risk ... The Hyundai Kona Electric Vehicle (EV) has experienced issues with its Integrated Charging Control Unit (ICCU) due to problems with the low-conductivity coolant (BSC-1) used in models produced between 2018 and October 2021. This coolant can crystallize, forming debris that clogs the cooling system, leading to false "Refill Inverter Coolant" warnings and potential overheating risks. A Technical Service Bulletin (TSB 23-01-049H) outlines a recall to flush and replace the coolant with an improved BSC-2 formula to address this issue. However, improper or repeated coolant flushes, if not performed correctly using Hyundaiâs specialized equipment and procedures, can leave air bubbles or residual debris in the system, which may impair cooling efficiency and stress critical components like the ICCU, inverter, and electric motor. Repeated coolant flushes, especially when not executed properly, can exacerbate issues by introducing air locks or failing to fully remove crystallized debris, potentially causing damage to the ICCU, inverter, and motor. Air bubbles trapped in the cooling system can reduce heat dissipation, leading to overheating that may degrade the ICCUâs electronics or cause the inverter and motor to operate at unsafe temperatures, risking premature failure. Posts on forums indicate that some vehicles required multiple flushes to clear the warning, with improper flushing sometimes leaving contaminants that continue to trigger sensors or obstruct coolant flow. This underscores the importance of having the procedure done by trained technicians using the correct tools to avoid long-term damage to these sensitive components. Source: NHTSA ODI #11683955 · tap to collapse
No
Aug 28
Safety
Aug 28
Potential Fire and safety risk ... The Hyundai Kona Electric Vehicle (EV) has experienced issues with its Integrated Charging Control Unit (ICCU) due to problems with the low-conductivity coolant (BSC-1) used in models produced between 2018 and October 2021. This coolant can crystallize, forming debris that clogs the cooling system, leading to false "Refill Inverter Coolant" warnings and potential overheating risks. A Technical Service Bulletin (TSB 23-01-049H) outlines a recall to flush and replace the coolant with an improved BSC-2 formula to address this issue. However, improper or repeated coolant flushes, if not performed correctly using Hyundaiâs specialized equipment and procedures, can leave air bubbles or residual debris in the system, which may impair cooling efficiency and stress critical components like the ICCU, inverter, and electric motor. Repeated coolant flushes, especially when not executed properly, can exacerbate issues by introducing air locks or failing to fully remove crystallized debris, potentially causing damage to the ICCU, inverter, and motor. Air bubbles trapped in the cooling system can reduce heat dissipation, leading to overheating that may degrade the ICCUâs electronics or cause the inverter and motor to operate at unsafe temperatures, risking premature failure. Posts on forums indicate that some vehicles required multiple flushes to clear the warning, with improper flushing sometimes leaving contaminants that continue to trigger sensors or obstruct coolant flow. This underscores the importance of having the procedure done by trained technicians using the correct tools to avoid long-term damage to these sensitive components. Source: NHTSA ODI #11683955 · tap to collapse
Safety
I was parking my Hyundai Kona electric car going very slow when without warning it took off going over 100 miles per hour. I couldn't control the vehicle. The brakes didn't stop the car. It ran over a wood parking beam, hit two light posts, and went over a concrete structure before finally stopping on its own. I was not hurt. Fortunately, no one else was hurt. I had my seat belt on. The air bags did not deploy. It was witnessed by another person. I had it towed to the Hyundai dealer in Webster. It is at Vision Collision. State Farm is paying for the repairs. When I got home after the incident I went online and discovered that acceleration problems with this car and year had been reported by others. This is a serious car defect that could result in the loss of life. Source: NHTSA ODI #11476368 · tap to collapse
Yes
Jul 27
Safety
Jul 27
I was parking my Hyundai Kona electric car going very slow when without warning it took off going over 100 miles per hour. I couldn't control the vehicle. The brakes didn't stop the car. It ran over a wood parking beam, hit two light posts, and went over a concrete structure before finally stopping on its own. I was not hurt. Fortunately, no one else was hurt. I had my seat belt on. The air bags did not deploy. It was witnessed by another person. I had it towed to the Hyundai dealer in Webster. It is at Vision Collision. State Farm is paying for the repairs. When I got home after the incident I went online and discovered that acceleration problems with this car and year had been reported by others. This is a serious car defect that could result in the loss of life. Source: NHTSA ODI #11476368 · tap to collapse
Crash involved
Battery
On 8/11/21, I tried to start my Hyundai Kona EV, and it displayed the high voltage warning . The car would not start or go into gear and had to be towed to the dealership. We purchased the car in May 2021, and it had about 3000 miles on it at the time. At the dealership, the mechanic diagnosed it as a faulty battery and indicated that the whole LG battery underneath for the electric car would need to be replaced. After doing further research, there is already a recall on the 2018 to 2020 models for the same issue, with the battery catching fire in some instances. The car has the same battery a the 2018 to 2020 models. The guidance for those model years has been to park the car outside, in case there is a fire. We live in an HOA condo (and do have the option to park outside our garage). As of today, there is no ETA of a fix for a new battery. If they end up replacing it with another LG battery with the same faulty cell issues, I feel like this is a danger to my and my family's lives. Due to the battery issue, they also quit selling the Kona in Korea in April, a full month before we purchased our car. They sold us a car with a known issue. I want them to buy back this car, due to the safety issues. Source: NHTSA ODI #11430674 · tap to collapse
No
Aug 25
Battery
Aug 25
On 8/11/21, I tried to start my Hyundai Kona EV, and it displayed the high voltage warning . The car would not start or go into gear and had to be towed to the dealership. We purchased the car in May 2021, and it had about 3000 miles on it at the time. At the dealership, the mechanic diagnosed it as a faulty battery and indicated that the whole LG battery underneath for the electric car would need to be replaced. After doing further research, there is already a recall on the 2018 to 2020 models for the same issue, with the battery catching fire in some instances. The car has the same battery a the 2018 to 2020 models. The guidance for those model years has been to park the car outside, in case there is a fire. We live in an HOA condo (and do have the option to park outside our garage). As of today, there is no ETA of a fix for a new battery. If they end up replacing it with another LG battery with the same faulty cell issues, I feel like this is a danger to my and my family's lives. Due to the battery issue, they also quit selling the Kona in Korea in April, a full month before we purchased our car. They sold us a car with a known issue. I want them to buy back this car, due to the safety issues. Source: NHTSA ODI #11430674 · tap to collapse
Safety
on 1, JULY 2021 receive notice from HYUNDAI USA about Recall of car due to bad Rings that might cause Engine failure due to engine running badly and might cause engine to lock up and throw a rod and catch fire, I am 75 years old US NAVY COMBAT VERERAN with PTSD and other serious medical problems and My wife is 74 years old her knees and hips have ben operated on but she still has problems getting in and out of the car. We take our 4 GRAND BABYS to and from school and the sitter 5 days a week. the youngest turned 1 year old on July 7th this year and the oldest is 81/2 years old. we would not able to get our self's and the Grand kids in and out of the car in a Emergency On 7 JULY , I returned to my Dealer BENTLEY HYUNDAI in Huntsville Al. they told me that there was :NO FIX: or test that they could do on My KONA SEL and to drive it until it "Catch's Fire and Breaks down." Than to have it" towed into they Dealer ship" using the HYUNDAI tow Service. This was totally out of the question as they knew about my wife and Grand kids most days of the week! At that time I didn't Remember about my 2016 SONATA SE that was brought new from BENTLEY HYUNDAI that had a software up grade to monitor the engine's operation to tell if problems were developing and Warn the operator. This was done back in 2020 ? I was under a lot of stress over this recall and they were telling me "Not to Worry" about it they showed me several other cars model of Hyundai's and I even drove one home to show my wife, which she didn't like as the color wasn't right and the trim options and safety options didn't compare to the 2021 KONA SEL. After dealing with the sales man who was really trying to help me and the General manager MR. JOHNSON ,who I felt just was just trying to get me to leave as I was really loud and very up set about they were handing the matter. they drove a 2022 KONA Se up for me to look over. It was very funny that only a few hours before there we're none. Source: NHTSA ODI #11429959 · tap to collapse
No
Aug 20
Safety
Aug 20
on 1, JULY 2021 receive notice from HYUNDAI USA about Recall of car due to bad Rings that might cause Engine failure due to engine running badly and might cause engine to lock up and throw a rod and catch fire, I am 75 years old US NAVY COMBAT VERERAN with PTSD and other serious medical problems and My wife is 74 years old her knees and hips have ben operated on but she still has problems getting in and out of the car. We take our 4 GRAND BABYS to and from school and the sitter 5 days a week. the youngest turned 1 year old on July 7th this year and the oldest is 81/2 years old. we would not able to get our self's and the Grand kids in and out of the car in a Emergency On 7 JULY , I returned to my Dealer BENTLEY HYUNDAI in Huntsville Al. they told me that there was :NO FIX: or test that they could do on My KONA SEL and to drive it until it "Catch's Fire and Breaks down." Than to have it" towed into they Dealer ship" using the HYUNDAI tow Service. This was totally out of the question as they knew about my wife and Grand kids most days of the week! At that time I didn't Remember about my 2016 SONATA SE that was brought new from BENTLEY HYUNDAI that had a software up grade to monitor the engine's operation to tell if problems were developing and Warn the operator. This was done back in 2020 ? I was under a lot of stress over this recall and they were telling me "Not to Worry" about it they showed me several other cars model of Hyundai's and I even drove one home to show my wife, which she didn't like as the color wasn't right and the trim options and safety options didn't compare to the 2021 KONA SEL. After dealing with the sales man who was really trying to help me and the General manager MR. JOHNSON ,who I felt just was just trying to get me to leave as I was really loud and very up set about they were handing the matter. they drove a 2022 KONA Se up for me to look over. It was very funny that only a few hours before there we're none. Source: NHTSA ODI #11429959 · tap to collapse
Safety
Transmission slip out of park I was at a complete stop in park got out of the car to get my purse an as I pull the hacker it was still locked so I came around and reached in the car to turn the car off an as I attempted to pull the key out the car started roll back drugged me about 150 feet down the inbank. Source: NHTSA ODI #11429683 · tap to collapse
No
Aug 18
Safety
Aug 18
Transmission slip out of park I was at a complete stop in park got out of the car to get my purse an as I pull the hacker it was still locked so I came around and reached in the car to turn the car off an as I attempted to pull the key out the car started roll back drugged me about 150 feet down the inbank. Source: NHTSA ODI #11429683 · tap to collapse
Safety
Iâve been having issues that align with the Safety Recall 239 to repair a condition involving the Electric Power Control Unit ("EPCU"). I seem to be having by a coolant leak, my car is overheating, has stalled and has struggled to start. I started noticing something wasnât right a couple of weeks ago but wasnât sure what until more âsymptomsâ have occurred since and I found the recall information. My air conditioner also will stop blowing cool air when the over heating happens. No lights have come on my dash board alerting me of anything needing to be serviced. Source: NHTSA ODI #11698269 · tap to collapse
No
Nov 6
Safety
Nov 6
Iâve been having issues that align with the Safety Recall 239 to repair a condition involving the Electric Power Control Unit ("EPCU"). I seem to be having by a coolant leak, my car is overheating, has stalled and has struggled to start. I started noticing something wasnât right a couple of weeks ago but wasnât sure what until more âsymptomsâ have occurred since and I found the recall information. My air conditioner also will stop blowing cool air when the over heating happens. No lights have come on my dash board alerting me of anything needing to be serviced. Source: NHTSA ODI #11698269 · tap to collapse
Safety
File with NHTSA now please!!!! What do you have to lose??? If anything If they do an investigation we are safe post warranty. Report a Vehicle Safety Problem, Equipment Issue | NHTSA [XXX] The Hyundai Kona Electric Vehicle (EV) has experienced issues with its Integrated Charging Control Unit (ICCU) due to problems with the low-conductivity coolant (BSC-1) used in models produced between 2018 and October 2021. This coolant can crystallize, forming debris that clogs the cooling system, leading to false "Refill Inverter Coolant" warnings and potential overheating risks. A Technical Service Bulletin (TSB 23-01-049H) outlines a recall to flush and replace the coolant with an improved BSC-2 formula to address this issue. However, improper or repeated coolant flushes, if not performed correctly using Hyundaiâs specialized equipment and procedures, can leave air bubbles or residual debris in the system, which may impair cooling efficiency and stress critical components like the ICCU, inverter, and electric motor. Repeated coolant flushes, especially when not executed properly, can exacerbate issues by introducing air locks or failing to fully remove crystallized debris, potentially causing damage to the ICCU, inverter, and motor. Air bubbles trapped in the cooling system can reduce heat dissipation, leading to overheating that may degrade the ICCUâs electronics or cause the inverter and motor to operate at unsafe temperatures, risking premature failure. Posts on forums indicate that some vehicles required multiple flushes to clear the warning, with improper flushing sometimes leaving contaminants that continue to trigger sensors or obstruct coolant flow. This underscores the importance of having the procedure done by trained technicians using the correct tools to avoid long-term damage to these sensitive components. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) Source: NHTSA ODI #11683954 · tap to collapse
No
Aug 28
Safety
Aug 28
File with NHTSA now please!!!! What do you have to lose??? If anything If they do an investigation we are safe post warranty. Report a Vehicle Safety Problem, Equipment Issue | NHTSA [XXX] The Hyundai Kona Electric Vehicle (EV) has experienced issues with its Integrated Charging Control Unit (ICCU) due to problems with the low-conductivity coolant (BSC-1) used in models produced between 2018 and October 2021. This coolant can crystallize, forming debris that clogs the cooling system, leading to false "Refill Inverter Coolant" warnings and potential overheating risks. A Technical Service Bulletin (TSB 23-01-049H) outlines a recall to flush and replace the coolant with an improved BSC-2 formula to address this issue. However, improper or repeated coolant flushes, if not performed correctly using Hyundaiâs specialized equipment and procedures, can leave air bubbles or residual debris in the system, which may impair cooling efficiency and stress critical components like the ICCU, inverter, and electric motor. Repeated coolant flushes, especially when not executed properly, can exacerbate issues by introducing air locks or failing to fully remove crystallized debris, potentially causing damage to the ICCU, inverter, and motor. Air bubbles trapped in the cooling system can reduce heat dissipation, leading to overheating that may degrade the ICCUâs electronics or cause the inverter and motor to operate at unsafe temperatures, risking premature failure. Posts on forums indicate that some vehicles required multiple flushes to clear the warning, with improper flushing sometimes leaving contaminants that continue to trigger sensors or obstruct coolant flow. This underscores the importance of having the procedure done by trained technicians using the correct tools to avoid long-term damage to these sensitive components. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) Source: NHTSA ODI #11683954 · tap to collapse
Software
Manufacturing defect ... Took it in 4 times for "refill inverter coolant" warning . They had a campaign ' tried by couldn't get the light to go away . It was their first time ever performing this on an EV at Kerry hyundai alexandria . Now TD EV in mason Ohio is confirming my inverter failed as a direct result of the poor flushes and poor manufacturing. I am seeking for hyundai to cover all related costs. I haven't had my vehicle for over a month . It's out of warranty 'however this was a known issue they issued a campaign for 'and then couldn't fix the issue after 4 or 5 tries and 2 different hyundia dealers . All work performed will be listed at Kerry hounding in alexandria KY and Jefferson wyler hyundai cincinnati Ohio. Source: NHTSA ODI #11677951 · tap to collapse
No
Aug 1
Software
Aug 1
Manufacturing defect ... Took it in 4 times for "refill inverter coolant" warning . They had a campaign ' tried by couldn't get the light to go away . It was their first time ever performing this on an EV at Kerry hyundai alexandria . Now TD EV in mason Ohio is confirming my inverter failed as a direct result of the poor flushes and poor manufacturing. I am seeking for hyundai to cover all related costs. I haven't had my vehicle for over a month . It's out of warranty 'however this was a known issue they issued a campaign for 'and then couldn't fix the issue after 4 or 5 tries and 2 different hyundia dealers . All work performed will be listed at Kerry hounding in alexandria KY and Jefferson wyler hyundai cincinnati Ohio. Source: NHTSA ODI #11677951 · tap to collapse
Safety
After powering on the car, the dashboard displayed multiple brake system warnings, including the brake system warning light and a message on the LCD display that read "Check regenerative brakes." A Hyundai dealer replaced the integrated electric brake unit assembly (invoice attached). Source: NHTSA ODI #11669350 · tap to collapse
No
Jun 24
Safety
Jun 24
After powering on the car, the dashboard displayed multiple brake system warnings, including the brake system warning light and a message on the LCD display that read "Check regenerative brakes." A Hyundai dealer replaced the integrated electric brake unit assembly (invoice attached). Source: NHTSA ODI #11669350 · tap to collapse
Safety
My wife's car t-boned another vehicle, but the air bags didn't deploy. Luckily, she wasn't hurt badly, but the vehicle was deemed a total loss, so you can imagine the force of the collision. The forward collision warning and automatic emergency braking didn't activate either. I reported it to Hyundai. They sent an inspector to examine the vehicle, and I also showed them photos and a copy of the police report, but they claim that my car was hit on the side, and the pre collision system doesn't detect imminent side impact. That's completely outrageous. I don't know what their inspector wrote in their report, but the photos and police report are irrefutable proof that my wife had a frontal collision with the side of another vehicle. Hyundai kept denying it because they didn't want to help financially. I attached a copy of their determination letters (the second one was after I submitted a copy of the police report to prove that my wife's car is the one that hit the other vehicle, but Hyundai refused to see it as it happened). This is a link to see the interior and exterior photos of the vehicle: [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) Source: NHTSA ODI #11665430 · tap to collapse
Yes
Jun 5
Safety
Jun 5
My wife's car t-boned another vehicle, but the air bags didn't deploy. Luckily, she wasn't hurt badly, but the vehicle was deemed a total loss, so you can imagine the force of the collision. The forward collision warning and automatic emergency braking didn't activate either. I reported it to Hyundai. They sent an inspector to examine the vehicle, and I also showed them photos and a copy of the police report, but they claim that my car was hit on the side, and the pre collision system doesn't detect imminent side impact. That's completely outrageous. I don't know what their inspector wrote in their report, but the photos and police report are irrefutable proof that my wife had a frontal collision with the side of another vehicle. Hyundai kept denying it because they didn't want to help financially. I attached a copy of their determination letters (the second one was after I submitted a copy of the police report to prove that my wife's car is the one that hit the other vehicle, but Hyundai refused to see it as it happened). This is a link to see the interior and exterior photos of the vehicle: [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) Source: NHTSA ODI #11665430 · tap to collapse
Crash involved
Safety
The contact owns a 2021 Hyundai Kona. The contact stated while driving at undisclosed speeds, the vehicle started accelerating slowly. The contact stated that while driving at an undisclosed speed, the vehicle stalled. There was an abnormal dinging sound coming from the vehicle. There was no warning lights illuminated. The vehicle was towed to the local dealer, where it was diagnosed and determined that the battery needed to be replaced, and the vehicle was experiencing excessive oil consumption. The mechanic recommended additional testing. The contact declined the additional diagnostic test. The vehicle was not repaired. The manufacturer was contacted, but no additional assistance was provided. The failure mileage was approximately 35,000. Source: NHTSA ODI #11630098 · tap to collapse
No
Dec 10
Safety
Dec 10
The contact owns a 2021 Hyundai Kona. The contact stated while driving at undisclosed speeds, the vehicle started accelerating slowly. The contact stated that while driving at an undisclosed speed, the vehicle stalled. There was an abnormal dinging sound coming from the vehicle. There was no warning lights illuminated. The vehicle was towed to the local dealer, where it was diagnosed and determined that the battery needed to be replaced, and the vehicle was experiencing excessive oil consumption. The mechanic recommended additional testing. The contact declined the additional diagnostic test. The vehicle was not repaired. The manufacturer was contacted, but no additional assistance was provided. The failure mileage was approximately 35,000. Source: NHTSA ODI #11630098 · tap to collapse
Safety
The braking system malfunctioned. Son was driving it, brake light came on, brakes started sinking randomly. Vehicle is very slow to get vehicle to stop and had to hit brake pedal hard to even get vehicle to slow down. Opened the hood to verify if there was brake fluid, it was low. Put brake fluid in and tested brakes, a pinhole was spraying brake fluid. Took to get a diagnostic of the vehicle. In addition to the pinhole leak, diagnostics showed that where the brake lines attach there is a leak at two of the components/areas, and told the vehicle would need new brake lines. We did not repair it at the place that performed the diagnostic. We are towing it to a Hyundai Dealership for inspection this week 3/21/2024. We have spoken to Corporate and were given a case number. No other inspections have taken place. Brake warning light came on last week. Malfunctioning brakes are a safety risk for everyone. Source: NHTSA ODI #11578324 · tap to collapse
No
Mar 18
Safety
Mar 18
The braking system malfunctioned. Son was driving it, brake light came on, brakes started sinking randomly. Vehicle is very slow to get vehicle to stop and had to hit brake pedal hard to even get vehicle to slow down. Opened the hood to verify if there was brake fluid, it was low. Put brake fluid in and tested brakes, a pinhole was spraying brake fluid. Took to get a diagnostic of the vehicle. In addition to the pinhole leak, diagnostics showed that where the brake lines attach there is a leak at two of the components/areas, and told the vehicle would need new brake lines. We did not repair it at the place that performed the diagnostic. We are towing it to a Hyundai Dealership for inspection this week 3/21/2024. We have spoken to Corporate and were given a case number. No other inspections have taken place. Brake warning light came on last week. Malfunctioning brakes are a safety risk for everyone. Source: NHTSA ODI #11578324 · tap to collapse
Safety
At a stop sign, or red light, car bucks, then accelerates. Steering column is making noise. Took car to dealership..stated they can't look at my car until October 31st, 2023! My car only has 16k miles. If this is a dangerous issue, especially the steering colum noise (possibly a bearing issue or rack and pinion problem)..why am I having to wait until October?? Source: NHTSA ODI #11546966 · tap to collapse
No
Sep 26
Safety
Sep 26
At a stop sign, or red light, car bucks, then accelerates. Steering column is making noise. Took car to dealership..stated they can't look at my car until October 31st, 2023! My car only has 16k miles. If this is a dangerous issue, especially the steering colum noise (possibly a bearing issue or rack and pinion problem)..why am I having to wait until October?? Source: NHTSA ODI #11546966 · tap to collapse
Safety
While driving on the highway at 70 mph, cruise control engaged, there was a sudden loss of drive power. I could not accelerate, or return to the cruising speed. The speed just dramatically fell. The only remedy was to pull over to the side of the road, turn off the car, and start it again. This VIN was not included in the initial similar recall earlier this year. Source: NHTSA ODI #11541136 · tap to collapse
No
Aug 27
Safety
Aug 27
While driving on the highway at 70 mph, cruise control engaged, there was a sudden loss of drive power. I could not accelerate, or return to the cruising speed. The speed just dramatically fell. The only remedy was to pull over to the side of the road, turn off the car, and start it again. This VIN was not included in the initial similar recall earlier this year. Source: NHTSA ODI #11541136 · tap to collapse
Safety
Vehicle will not go out of 3rd gear when on the interstate. The vehicle will go pass the redline and hit the fuel cut off and will not accelerate. Have to slow the car down and attempt to speed up again. Vehicle has almost been in accident multiple times due to almost being rear ended because can not get the vehicle up to speed. Source: NHTSA ODI #11506590 · tap to collapse
No
Feb 9
Safety
Feb 9
Vehicle will not go out of 3rd gear when on the interstate. The vehicle will go pass the redline and hit the fuel cut off and will not accelerate. Have to slow the car down and attempt to speed up again. Vehicle has almost been in accident multiple times due to almost being rear ended because can not get the vehicle up to speed. Source: NHTSA ODI #11506590 · tap to collapse
Battery
July of 2022, vehicle went in due to battery not charging. Vehicle kept at Temecula Hyundai repair until September 2022 for EV battery replacement. Upon return, EV battery still didn't change. September 2022 vehicle went back for repairs. Returned October 2022. Was told battery overheating sensor was faulty and was turned off. As a result the EV battery will not be able to charge beyond 90%. Was told nothing else they could do to repair the car. When I asked if there was an increased risk of battery getting too hot, the response was " their should not be". My concern is that their going to be an overheating issue while the vehicle is changing at my home. Contacted Hyundai about it; they did an investigation and determined there was reason for them to buy back the vehicle. They offered to buy it back at less that what the buy out the finance company states. It is now February 2023. Hyundai still has yet to buy back the vehicle at what is owed on it, and still have no idea how to due the proper repairs. They still cannot assure that the battery won't overheat and there are no sensors to notify if it does. Source: NHTSA ODI #11504717 · tap to collapse
No
Jan 30
Battery
Jan 30
July of 2022, vehicle went in due to battery not charging. Vehicle kept at Temecula Hyundai repair until September 2022 for EV battery replacement. Upon return, EV battery still didn't change. September 2022 vehicle went back for repairs. Returned October 2022. Was told battery overheating sensor was faulty and was turned off. As a result the EV battery will not be able to charge beyond 90%. Was told nothing else they could do to repair the car. When I asked if there was an increased risk of battery getting too hot, the response was " their should not be". My concern is that their going to be an overheating issue while the vehicle is changing at my home. Contacted Hyundai about it; they did an investigation and determined there was reason for them to buy back the vehicle. They offered to buy it back at less that what the buy out the finance company states. It is now February 2023. Hyundai still has yet to buy back the vehicle at what is owed on it, and still have no idea how to due the proper repairs. They still cannot assure that the battery won't overheat and there are no sensors to notify if it does. Source: NHTSA ODI #11504717 · tap to collapse
Safety
Check regenerative brake warning comes on and the emergency brake applies while driving also when I come to a stop. When I started my car the immediately the light came on. When I cut my car off the light clears. It happens when Iâm braking. The regenerative brake light warning is becoming more frequent. I took my car back to the Hyundai dealership and they âcheckedâ it out and found no problem with my vehicle. They ran a diagnostics and a update for my car, but 4 days later the warning can on again, after the repair. Source: NHTSA ODI #11468863 · tap to collapse
No
Jun 11
Safety
Jun 11
Check regenerative brake warning comes on and the emergency brake applies while driving also when I come to a stop. When I started my car the immediately the light came on. When I cut my car off the light clears. It happens when Iâm braking. The regenerative brake light warning is becoming more frequent. I took my car back to the Hyundai dealership and they âcheckedâ it out and found no problem with my vehicle. They ran a diagnostics and a update for my car, but 4 days later the warning can on again, after the repair. Source: NHTSA ODI #11468863 · tap to collapse
Safety
The contactâs father owned a 2021 Hyundai Kona. The contact stated that while her father was driving at an undisclosed speed, the accelerator pedal was stuck and the seat belt did not lock the contactâs father into his seat during impact. The vehicle crashed into a traffic light pole, went uphill, and then flipped before stopping. The air bags deployed, but the steering wheel air bag caught fire. The contactâs father was able to exit the vehicle. The contactâs father suffered fractured back, chest, ribs, and lumbar spine injuries, as well as head injuries with a brain bleed. The contactâs father was transported to the hospital by ambulance. A police report was filed. The vehicle was towed to a police tow yard and deemed totaled by the insurance company. The manufacturer was not made aware of the failure. The failure mileage was unavailable. Source: NHTSA ODI #11443128 · tap to collapse
Yes
Dec 7
Safety
Dec 7
The contactâs father owned a 2021 Hyundai Kona. The contact stated that while her father was driving at an undisclosed speed, the accelerator pedal was stuck and the seat belt did not lock the contactâs father into his seat during impact. The vehicle crashed into a traffic light pole, went uphill, and then flipped before stopping. The air bags deployed, but the steering wheel air bag caught fire. The contactâs father was able to exit the vehicle. The contactâs father suffered fractured back, chest, ribs, and lumbar spine injuries, as well as head injuries with a brain bleed. The contactâs father was transported to the hospital by ambulance. A police report was filed. The vehicle was towed to a police tow yard and deemed totaled by the insurance company. The manufacturer was not made aware of the failure. The failure mileage was unavailable. Source: NHTSA ODI #11443128 · tap to collapse
Crash involved
Safety
I had a flat tire (passenger side right front tire). Triple AAA removed tire and replaced with my spare tire. While driving to the Hyundai dealership, massive clouds of smoke poured out of my exhaust pipe in rear of car. I also had trouble steering the car. The result of using the spare tire burned the transmission fluid (also contained metal shavings). The transmission had to be replaced along with the fluids in my car. Source: NHTSA ODI #11421821 · tap to collapse
No
Jun 21
Safety
Jun 21
I had a flat tire (passenger side right front tire). Triple AAA removed tire and replaced with my spare tire. While driving to the Hyundai dealership, massive clouds of smoke poured out of my exhaust pipe in rear of car. I also had trouble steering the car. The result of using the spare tire burned the transmission fluid (also contained metal shavings). The transmission had to be replaced along with the fluids in my car. Source: NHTSA ODI #11421821 · tap to collapse
Safety
I WAS ENTERING MY NEIGHBORHOOD AND SLOWED DOWN AS WE NEARED OUR HOUSE WITH MY FOOT ON THE BRAKES SO THAT I CAN OPEN MY GARAGE DOOR, AS I RELEASED THE BRAKES, THE CAR STARTED ACCELERATING BY ITSELF REALLY FAST AND I HAD TO SLAM ON MY BRAKES TO STOP THE CAR FROM SPEEDING UP ON ITS OWN. Source: NHTSA ODI #11408597 · tap to collapse
No
Apr 17
Safety
Apr 17
I WAS ENTERING MY NEIGHBORHOOD AND SLOWED DOWN AS WE NEARED OUR HOUSE WITH MY FOOT ON THE BRAKES SO THAT I CAN OPEN MY GARAGE DOOR, AS I RELEASED THE BRAKES, THE CAR STARTED ACCELERATING BY ITSELF REALLY FAST AND I HAD TO SLAM ON MY BRAKES TO STOP THE CAR FROM SPEEDING UP ON ITS OWN. Source: NHTSA ODI #11408597 · tap to collapse
Safety
CAR HAS BEEN PULLING TO THE RIGHT SINCE A WEEK OLD. DEALER ADJUSTED ALIGNMENT AND STILL DOING IT. WHEEL IS OFF CENTER AND MORE RESISTANCE GOING LEFT THAN RIGHT. Source: NHTSA ODI #11406057 · tap to collapse
No
Apr 1
Safety
Apr 1
CAR HAS BEEN PULLING TO THE RIGHT SINCE A WEEK OLD. DEALER ADJUSTED ALIGNMENT AND STILL DOING IT. WHEEL IS OFF CENTER AND MORE RESISTANCE GOING LEFT THAN RIGHT. Source: NHTSA ODI #11406057 · tap to collapse
Battery
I have already replaced the transmission out of pocket 7k its began to do the same thing immediately was flushed a 2nd time and told it could be the motor. Also my battery i have bought 2 new batteries in 2 yrs now to find out its a false warning. Source: NHTSA ODI #11730099 · tap to collapse
No
Apr 8
Battery
Apr 8
I have already replaced the transmission out of pocket 7k its began to do the same thing immediately was flushed a 2nd time and told it could be the motor. Also my battery i have bought 2 new batteries in 2 yrs now to find out its a false warning. Source: NHTSA ODI #11730099 · tap to collapse
Battery
The contact owns a 2021 Hyundai Kona. The contact stated that while driving at an undisclosed speed, the vehicle lost motive power. The contact was unaware of the warning lights that were illuminated during the failure. The vehicle was unable to be restarted. The vehicle was towed to an independent mechanic, where it was diagnosed and determined that the piston rings had failed and that the engine needed to be replaced. The vehicle was not repaired. The vehicle was towed to the dealer, where it was diagnosed that the piston rings had failed and that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure, and a case was opened. The approximate failure mileage was 82,000. Source: NHTSA ODI #11729419 · tap to collapse
No
Apr 5
Battery
Apr 5
The contact owns a 2021 Hyundai Kona. The contact stated that while driving at an undisclosed speed, the vehicle lost motive power. The contact was unaware of the warning lights that were illuminated during the failure. The vehicle was unable to be restarted. The vehicle was towed to an independent mechanic, where it was diagnosed and determined that the piston rings had failed and that the engine needed to be replaced. The vehicle was not repaired. The vehicle was towed to the dealer, where it was diagnosed that the piston rings had failed and that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure, and a case was opened. The approximate failure mileage was 82,000. Source: NHTSA ODI #11729419 · tap to collapse
Battery
Engine is consuming oil and developed piston slap, per the mechanic I took it to. Currently it sounds like there is gravel inside the engine and it does not seem safe to drive. The Malfunction Indicator Lamp has also come on, the codes were cleared by my mechanic but they told me it likely will return. The piston slap developed a week ago today (Thursday), the MIL started flashing 3 days later (Sunday), mechanic did the oil change on Tuesday and noted the Piston Slap at that time. All symptoms point to the issues noted in #21V-301, but my VIN is not included in that recall per the NHTSA website. Source: NHTSA ODI #11728721 · tap to collapse
No
Apr 1
Battery
Apr 1
Engine is consuming oil and developed piston slap, per the mechanic I took it to. Currently it sounds like there is gravel inside the engine and it does not seem safe to drive. The Malfunction Indicator Lamp has also come on, the codes were cleared by my mechanic but they told me it likely will return. The piston slap developed a week ago today (Thursday), the MIL started flashing 3 days later (Sunday), mechanic did the oil change on Tuesday and noted the Piston Slap at that time. All symptoms point to the issues noted in #21V-301, but my VIN is not included in that recall per the NHTSA website. Source: NHTSA ODI #11728721 · tap to collapse
Battery
VIN: [XXX] 2021 Hyundai Kona experienced sudden engine failure at approximately 103,000 miles. The engine began knocking without any prior warning, and the check engine light came on at the same time the knocking started. The vehicle was not driven for an extended period after the issue began. There were no earlier warning indicators or drivability issues that would suggest neglect or lack of maintenance. The failure was immediate and unexpected. This vehicle had previously received Hyundai recall T8Y, which involved an ECU update related to engine monitoring and performance. Despite this manufacturer intervention, the engine still experienced sudden failure. Hyundai has denied warranty and goodwill coverage for this failure. This appears to be a premature engine failure and raises concerns about reliability and safety due to the sudden nature of the issue. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) Source: NHTSA ODI #11728953 · tap to collapse
No
Apr 1
Battery
Apr 1
VIN: [XXX] 2021 Hyundai Kona experienced sudden engine failure at approximately 103,000 miles. The engine began knocking without any prior warning, and the check engine light came on at the same time the knocking started. The vehicle was not driven for an extended period after the issue began. There were no earlier warning indicators or drivability issues that would suggest neglect or lack of maintenance. The failure was immediate and unexpected. This vehicle had previously received Hyundai recall T8Y, which involved an ECU update related to engine monitoring and performance. Despite this manufacturer intervention, the engine still experienced sudden failure. Hyundai has denied warranty and goodwill coverage for this failure. This appears to be a premature engine failure and raises concerns about reliability and safety due to the sudden nature of the issue. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) Source: NHTSA ODI #11728953 · tap to collapse
Battery
I am reporting a persistent and unresolved excessive oil consumption issue that I began to notice at approximately 61,000 miles. I follow all routine maintenance and oil change schedules, but my car has returned to the dealership I purchased from (only owner), three times for this specific problem. - First Visit (64,074 miles): I shared my observations of excessive oil consumption to the dealership, they stated there was an oil leak at the timing cover and oil pan. They repaired the leaks, however this did not resolve the consumption issue. - Second Visit (65,273 miles) - The oil change done by Mobil at 75,238 miles, before I brought my car in for the third time to Hyundai for the consumption issue, documented that my oil level was at the 'Low'(L) level, this is the case each time I get an oil change around 3,000 miles - The third time bringing my car to Hyundai my mileage was at 78,913, less than 3,000 miles since my last oil change. Before making the appointment my cars engine sounded like it was running rough so we took a look at the oil level, which was at L - The first two times I did the 1000 mile oil test, Hyundai reported that my oil level remained above Full when I returned for a check, shortly after, within an additional 2000 miles, my dipstick would show L. The third reading is TBD. Source: NHTSA ODI #11727138 · tap to collapse
No
Mar 24
Battery
Mar 24
I am reporting a persistent and unresolved excessive oil consumption issue that I began to notice at approximately 61,000 miles. I follow all routine maintenance and oil change schedules, but my car has returned to the dealership I purchased from (only owner), three times for this specific problem. - First Visit (64,074 miles): I shared my observations of excessive oil consumption to the dealership, they stated there was an oil leak at the timing cover and oil pan. They repaired the leaks, however this did not resolve the consumption issue. - Second Visit (65,273 miles) - The oil change done by Mobil at 75,238 miles, before I brought my car in for the third time to Hyundai for the consumption issue, documented that my oil level was at the 'Low'(L) level, this is the case each time I get an oil change around 3,000 miles - The third time bringing my car to Hyundai my mileage was at 78,913, less than 3,000 miles since my last oil change. Before making the appointment my cars engine sounded like it was running rough so we took a look at the oil level, which was at L - The first two times I did the 1000 mile oil test, Hyundai reported that my oil level remained above Full when I returned for a check, shortly after, within an additional 2000 miles, my dipstick would show L. The third reading is TBD. Source: NHTSA ODI #11727138 · tap to collapse
Battery
The vehicle has 82.000 miles on it, and the engine started to rattle as I entered the street to my house, and the motor quit running. I had the vehicle hauled to a repair garage for analysis, and they said the piston rings failed. The vehicle is in perfect shape except for the broken engine. Source: NHTSA ODI #11726081 · tap to collapse
No
Mar 20
Battery
Mar 20
The vehicle has 82.000 miles on it, and the engine started to rattle as I entered the street to my house, and the motor quit running. I had the vehicle hauled to a repair garage for analysis, and they said the piston rings failed. The vehicle is in perfect shape except for the broken engine. Source: NHTSA ODI #11726081 · tap to collapse
Battery
The contact owns a 2021 Hyundai Kona. The contact stated that while attempting to accelerate from a stop and while driving at various speeds, the vehicle stalled unexpectedly. The vehicle was coasted to the side of the road, and the vehicle was turned off and restarted, and continued driving. The check engine warning light was illuminated. The vehicle was taken to Auto Zone, where it was determined that the spark plugs had failed and needed to be replaced. The spark plugs were replaced; however, the check engine warning light remained illuminated, and the vehicle stalled. The failure had occurred three times; however, the last time, the vehicle failed to restart, and there was smoke coming from underneath the hood. The vehicle was towed to the dealer to be diagnosed. The contact was informed that the turbocharger and the piston rings had failed, and the engine needed to be replaced. The vehicle was not repaired. The vehicle was towed back to the residence. The contact became aware of NHTSA Campaign Number: 21V301000 (Engine); however, the VIN was not included. The manufacturer was not informed of the failure. The failure mileage was 121,334 Source: NHTSA ODI #11722878 · tap to collapse
No
Mar 8
Battery
Mar 8
The contact owns a 2021 Hyundai Kona. The contact stated that while attempting to accelerate from a stop and while driving at various speeds, the vehicle stalled unexpectedly. The vehicle was coasted to the side of the road, and the vehicle was turned off and restarted, and continued driving. The check engine warning light was illuminated. The vehicle was taken to Auto Zone, where it was determined that the spark plugs had failed and needed to be replaced. The spark plugs were replaced; however, the check engine warning light remained illuminated, and the vehicle stalled. The failure had occurred three times; however, the last time, the vehicle failed to restart, and there was smoke coming from underneath the hood. The vehicle was towed to the dealer to be diagnosed. The contact was informed that the turbocharger and the piston rings had failed, and the engine needed to be replaced. The vehicle was not repaired. The vehicle was towed back to the residence. The contact became aware of NHTSA Campaign Number: 21V301000 (Engine); however, the VIN was not included. The manufacturer was not informed of the failure. The failure mileage was 121,334 Source: NHTSA ODI #11722878 · tap to collapse
Battery
The contact owns a 2021 Hyundai Kona. The contact stated that while driving at a slow speed or making a turn, the vehicle stalled. In addition, there was an abnormal ticking sound coming from the engine. There was an unknown code displayed on the instrument panel. Most recently, the engine started consuming an excessive amount of engine oil. The contact was adding oil every other week to the vehicle. The vehicle was taken to an independent mechanic; however, no cause for the failure was found. The contact stated that on a separate occasion, while the accelerator was depressed, the engine made a rough revving sound. The contact stated that at the beginning, the vehicle stalled after the contact drove over a speed bump or drove around a roundabout. The contact moved the gear shift lever to neutral(N) and restarted the vehicle. The vehicle was taken to the dealer; however, the vehicle was not inspected or repaired. The manufacturer was not made aware of the issue. The failure mileage was approximately 60,000. Source: NHTSA ODI #11723139 · tap to collapse
No
Mar 8
Battery
Mar 8
The contact owns a 2021 Hyundai Kona. The contact stated that while driving at a slow speed or making a turn, the vehicle stalled. In addition, there was an abnormal ticking sound coming from the engine. There was an unknown code displayed on the instrument panel. Most recently, the engine started consuming an excessive amount of engine oil. The contact was adding oil every other week to the vehicle. The vehicle was taken to an independent mechanic; however, no cause for the failure was found. The contact stated that on a separate occasion, while the accelerator was depressed, the engine made a rough revving sound. The contact stated that at the beginning, the vehicle stalled after the contact drove over a speed bump or drove around a roundabout. The contact moved the gear shift lever to neutral(N) and restarted the vehicle. The vehicle was taken to the dealer; however, the vehicle was not inspected or repaired. The manufacturer was not made aware of the issue. The failure mileage was approximately 60,000. Source: NHTSA ODI #11723139 · tap to collapse
Battery
Was driving when the car seemed to lose power and would not accelerate and started shaking. Check engine light came on and got it read, the code indicated a misfire and other errors. There was no one local to fix it as we were out of town. So we replaced the plugs that were indicated and noticed how badly damaged they were. Vehicle started to drive better before stalling out again and replacing the rest of the plugs. Was able to get it home and seemed to be driving normally but then we noticed it has an oil leak now. We have to keep a religious check on the oil because of the amount leaking and the fact the car isn't giving us a low oil warning. We took it to the dealership and they said we needed a new engine and it was just outside the power train warranty. All of this occurred our 78,000-80,000 mile mark. The dealer would not even change the oil before of how bad the leak was. This car was for our teenage daughter and its not safe for anyone to drive. I believe the dealership knew this car had issues, we bought it pre-owned and have only had it 6 months. Source: NHTSA ODI #11720602 · tap to collapse
No
Feb 25
Battery
Feb 25
Was driving when the car seemed to lose power and would not accelerate and started shaking. Check engine light came on and got it read, the code indicated a misfire and other errors. There was no one local to fix it as we were out of town. So we replaced the plugs that were indicated and noticed how badly damaged they were. Vehicle started to drive better before stalling out again and replacing the rest of the plugs. Was able to get it home and seemed to be driving normally but then we noticed it has an oil leak now. We have to keep a religious check on the oil because of the amount leaking and the fact the car isn't giving us a low oil warning. We took it to the dealership and they said we needed a new engine and it was just outside the power train warranty. All of this occurred our 78,000-80,000 mile mark. The dealer would not even change the oil before of how bad the leak was. This car was for our teenage daughter and its not safe for anyone to drive. I believe the dealership knew this car had issues, we bought it pre-owned and have only had it 6 months. Source: NHTSA ODI #11720602 · tap to collapse
Battery
On February 3, 2026, while driving in a high-traffic turning lane, my Hyundai Kona Electric vehicle suddenly lost propulsion and would not accelerate. The vehicle shut down without warning and could not be restarted. Traffic was building behind me, creating a safety hazard. I felt unsafe due to surrounding vehicles expecting movement, I contacted the police for assistance. The vehicle had to be towed from the roadway. The vehicle was transferred between 3 dealerships before being diagonsed. On February 16, 2026, the issue was diagnosed as a motor position sensor failure affecting the propulsion system. The vehicle has remained inoperable since February 3, 2026, and there is no repair ETA due to parts availability. The vehicle remains at the servicing dealership and is available for inspection upon request. There were no prior warning lamps, dashboard messages, or noticeable symptoms before the sudden loss of propulsion. This incident involved a sudden failure of the vehicleâs propulsion system while operating in active traffic and presented a significant safety concern. Source: NHTSA ODI #11719765 · tap to collapse
No
Feb 21
Battery
Feb 21
On February 3, 2026, while driving in a high-traffic turning lane, my Hyundai Kona Electric vehicle suddenly lost propulsion and would not accelerate. The vehicle shut down without warning and could not be restarted. Traffic was building behind me, creating a safety hazard. I felt unsafe due to surrounding vehicles expecting movement, I contacted the police for assistance. The vehicle had to be towed from the roadway. The vehicle was transferred between 3 dealerships before being diagonsed. On February 16, 2026, the issue was diagnosed as a motor position sensor failure affecting the propulsion system. The vehicle has remained inoperable since February 3, 2026, and there is no repair ETA due to parts availability. The vehicle remains at the servicing dealership and is available for inspection upon request. There were no prior warning lamps, dashboard messages, or noticeable symptoms before the sudden loss of propulsion. This incident involved a sudden failure of the vehicleâs propulsion system while operating in active traffic and presented a significant safety concern. Source: NHTSA ODI #11719765 · tap to collapse
Battery
The cars engine vibrates when accelerating and hesitates. It is always dangerous to stall after hitting the gas. This issue causes many near accidents. It began to vibrate at less than 70k. It has 90k now. These engines have had issues and mine is no exception. They should recall this engine as it's dangerous. top of the line and poop. Source: NHTSA ODI #11717883 · tap to collapse
No
Feb 12
Battery
Feb 12
The cars engine vibrates when accelerating and hesitates. It is always dangerous to stall after hitting the gas. This issue causes many near accidents. It began to vibrate at less than 70k. It has 90k now. These engines have had issues and mine is no exception. They should recall this engine as it's dangerous. top of the line and poop. Source: NHTSA ODI #11717883 · tap to collapse
Battery
Known problem of oil consumption . 1 week used 3 quarts . Wife driving down road oil light. Engine light seconds later engine seized at 55mph.lucky to drift off road. Source: NHTSA ODI #11716502 · tap to collapse
No
Feb 6
Battery
Feb 6
Known problem of oil consumption . 1 week used 3 quarts . Wife driving down road oil light. Engine light seconds later engine seized at 55mph.lucky to drift off road. Source: NHTSA ODI #11716502 · tap to collapse
Battery
Over the last 2 1/2 months the car has shut off approximately 5 times while driving, without warning. Most instances have been while pulling into a parking lot, but one time (so far) it shut off while trying to back into my driveway. I'm fearful it will happen while on the freeway. I took it to the dealer, but there wasn't a fault code so they refused to look at it unless I left the car with them to drive, and wanted to charge me $45/day for a rental so I could get back & forth to work until it happened again while they were driving it. Source: NHTSA ODI #11714551 · tap to collapse
No
Jan 29
Battery
Jan 29
Over the last 2 1/2 months the car has shut off approximately 5 times while driving, without warning. Most instances have been while pulling into a parking lot, but one time (so far) it shut off while trying to back into my driveway. I'm fearful it will happen while on the freeway. I took it to the dealer, but there wasn't a fault code so they refused to look at it unless I left the car with them to drive, and wanted to charge me $45/day for a rental so I could get back & forth to work until it happened again while they were driving it. Source: NHTSA ODI #11714551 · tap to collapse
Safety
The Blind Spot Collision Warning (BSCW) light comes on 10 minutes into a drive (we live in a rural area and drive two lane roads for at least 25 miles before multiple lanes). I have had the car in for service on the system twice before learning that this is built into the system. Others are having the same problem, (see the two Hyundai Kona forum links below). I've spent about $600 trying to solve a problem Kona already knows existed (see p. 5-52 of the 2021 Kona owner's manual). Of course I hadn't read the entire manual, but I feel the service technicians should have. I will attempt to put a more detailed description in the files below. [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) Source: NHTSA ODI #11710179 · tap to collapse
No
Jan 10
Safety
Jan 10
The Blind Spot Collision Warning (BSCW) light comes on 10 minutes into a drive (we live in a rural area and drive two lane roads for at least 25 miles before multiple lanes). I have had the car in for service on the system twice before learning that this is built into the system. Others are having the same problem, (see the two Hyundai Kona forum links below). I've spent about $600 trying to solve a problem Kona already knows existed (see p. 5-52 of the 2021 Kona owner's manual). Of course I hadn't read the entire manual, but I feel the service technicians should have. I will attempt to put a more detailed description in the files below. [XXX] [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) Source: NHTSA ODI #11710179 · tap to collapse
Battery
-The engine and related crankshaft components failed. The vehicle experienced complete engine shutdown while driving and later multiple no-start conditions. The vehicle has been inspected and repaired multiple times by an authorized Hyundai dealership and remains available for inspection upon request. -The engine shut down unexpectedly while driving at highway speed, resulting in loss of power and the need to coast and pull over. This created a risk of rear-end collision and loss of control in traffic. Subsequent failures left the vehicle unable to start, creating risk of stranding in unsafe locations. -Yes. The authorized Hyundai dealership confirmed engine-related and crankshaft-related issues and performed repairs on multiple occasions. Despite these repairs, the problem has recurred. -The vehicle has been inspected and repaired multiple times by an authorized Hyundai dealership. -Yes. The check engine light illuminated prior to multiple failures. In at least one instance, the dealership stated the light was a history code and no active issue was found. Within days, the vehicle experienced another complete failure and became inoperable. Source: NHTSA ODI #11708210 · tap to collapse
No
Dec 31
Battery
Dec 31
-The engine and related crankshaft components failed. The vehicle experienced complete engine shutdown while driving and later multiple no-start conditions. The vehicle has been inspected and repaired multiple times by an authorized Hyundai dealership and remains available for inspection upon request. -The engine shut down unexpectedly while driving at highway speed, resulting in loss of power and the need to coast and pull over. This created a risk of rear-end collision and loss of control in traffic. Subsequent failures left the vehicle unable to start, creating risk of stranding in unsafe locations. -Yes. The authorized Hyundai dealership confirmed engine-related and crankshaft-related issues and performed repairs on multiple occasions. Despite these repairs, the problem has recurred. -The vehicle has been inspected and repaired multiple times by an authorized Hyundai dealership. -Yes. The check engine light illuminated prior to multiple failures. In at least one instance, the dealership stated the light was a history code and no active issue was found. Within days, the vehicle experienced another complete failure and became inoperable. Source: NHTSA ODI #11708210 · tap to collapse
Battery
About 2 weeks ago I tried to start my car and the dash board starting flickering and glitch. Roadside assistance said all I needed was a battery. I got a battery and everything seemed fine until today. My car is starting to do the same thing. When I looked up recalls my VIN doesnt match for a recall I think my car should be under. The Battery Charge Sysytem is failing I believe. I have videos. Source: NHTSA ODI #11704777 · tap to collapse
No
Dec 11
Battery
Dec 11
About 2 weeks ago I tried to start my car and the dash board starting flickering and glitch. Roadside assistance said all I needed was a battery. I got a battery and everything seemed fine until today. My car is starting to do the same thing. When I looked up recalls my VIN doesnt match for a recall I think my car should be under. The Battery Charge Sysytem is failing I believe. I have videos. Source: NHTSA ODI #11704777 · tap to collapse
Battery
My car consumes a lot of oil. This is a very similar problem as the wrong tempered piston rings. All this car has used is 5W 20 full synthetic oil., which gets changed every 5000 miles. I would burn around 1 quart every 1000 miles. Dealer solution is to put in 5W 30 full synthetic oil. Got a little better but within a few months, back to burning1 quart every 1000 miles. Dealer is now saying Hyundai wonât fix the issue because car now has 116000 miles on it. This has been a problem for a while. Source: NHTSA ODI #11691130 · tap to collapse
No
Oct 2
Battery
Oct 2
My car consumes a lot of oil. This is a very similar problem as the wrong tempered piston rings. All this car has used is 5W 20 full synthetic oil., which gets changed every 5000 miles. I would burn around 1 quart every 1000 miles. Dealer solution is to put in 5W 30 full synthetic oil. Got a little better but within a few months, back to burning1 quart every 1000 miles. Dealer is now saying Hyundai wonât fix the issue because car now has 116000 miles on it. This has been a problem for a while. Source: NHTSA ODI #11691130 · tap to collapse
Battery
The piston went through the top of my engine with my entire family in the car. We managed to get to a mechanic. And bring it to the dealership. We are very lucky to be alive. Source: NHTSA ODI #11690311 · tap to collapse
No
Sep 28
Battery
Sep 28
The piston went through the top of my engine with my entire family in the car. We managed to get to a mechanic. And bring it to the dealership. We are very lucky to be alive. Source: NHTSA ODI #11690311 · tap to collapse
Battery
About a month after purchasing my car it shut down on the highway while driving. It completely lost power so I could not accelerate or even press the brake. Only the emergency brake stopped me from going into other cars. I started the car up again and then it worked fine until about another month later it happened again. I was on an exit ramp on the highway and it lost power. Cars had to quickly go around me as I had no control of my vehicle. Neither brakes or gas pedal worked at the time and my check engine light stayed on. I then took my car to Hyundai service where they told me my car went through 2 quarts of oil in one month. They want me to drive this car another 1,000 miles knowing itâs dangerous, unsafe, a risk to me and other drivers and a fire hazard to have an engine consuming this much oil. I fear to drive this unpredictable car any more. The manager of Hyundai knows itâs unfair but must follow protocol. I just donât understand how they can tell someone to drive a stalling car waiting for an accident to happen. Source: NHTSA ODI #11688351 · tap to collapse
No
Sep 18
Battery
Sep 18
About a month after purchasing my car it shut down on the highway while driving. It completely lost power so I could not accelerate or even press the brake. Only the emergency brake stopped me from going into other cars. I started the car up again and then it worked fine until about another month later it happened again. I was on an exit ramp on the highway and it lost power. Cars had to quickly go around me as I had no control of my vehicle. Neither brakes or gas pedal worked at the time and my check engine light stayed on. I then took my car to Hyundai service where they told me my car went through 2 quarts of oil in one month. They want me to drive this car another 1,000 miles knowing itâs dangerous, unsafe, a risk to me and other drivers and a fire hazard to have an engine consuming this much oil. I fear to drive this unpredictable car any more. The manager of Hyundai knows itâs unfair but must follow protocol. I just donât understand how they can tell someone to drive a stalling car waiting for an accident to happen. Source: NHTSA ODI #11688351 · tap to collapse
Battery
The contact owns a 2021 Hyundai Kona. The contact stated that while coming to a stop, the vehicle stalled. There was no warning light illuminated. The vehicle was able to restart. The vehicle was taken to the dealer and was diagnosed with engine failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 86,000. The VIN was not available. Source: NHTSA ODI #11683392 · tap to collapse
No
Aug 26
Battery
Aug 26
The contact owns a 2021 Hyundai Kona. The contact stated that while coming to a stop, the vehicle stalled. There was no warning light illuminated. The vehicle was able to restart. The vehicle was taken to the dealer and was diagnosed with engine failure. The contact was informed that the engine needed to be replaced. The vehicle was not repaired. The manufacturer was made aware of the failure. The failure mileage was approximately 86,000. The VIN was not available. Source: NHTSA ODI #11683392 · tap to collapse
Battery
I have experienced the same issues with a known recall for my year, make and model. I am not sure why my VIN is not showing. Have records from a mechanic that there was a fire hazard. I have experienced stalling on several occasions. Could I have help getting my VIN recognized so Hyundai will help me? Source: NHTSA ODI #11682180 · tap to collapse
No
Aug 20
Battery
Aug 20
I have experienced the same issues with a known recall for my year, make and model. I am not sure why my VIN is not showing. Have records from a mechanic that there was a fire hazard. I have experienced stalling on several occasions. Could I have help getting my VIN recognized so Hyundai will help me? Source: NHTSA ODI #11682180 · tap to collapse
Battery
The piston oil ring recall. I have had a mechanic determine I am having the exact same problem as the recalls but my VIN is not covered. Please update the recall so my repairs can be covered. Source: NHTSA ODI #11682204 · tap to collapse
No
Aug 20
Battery
Aug 20
The piston oil ring recall. I have had a mechanic determine I am having the exact same problem as the recalls but my VIN is not covered. Please update the recall so my repairs can be covered. Source: NHTSA ODI #11682204 · tap to collapse
Battery
The contact owns a 2021 Hyundai Kona. The contact stated that while driving at slow speeds in stop-and-go traffic, the vehicle inadvertently lost motive power. The contact was able to restart the vehicle but almost immediately lost motive power. No warning lights were illuminated. The vehicle was towed to an independent mechanic, who diagnosed a failure with the piston oil rings, resulting in damage to the engine. The contact was informed that the engine needed to be replaced. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 21V301000 (Engine); but the VIN was not included. The manufacturer was not notified of the failure. The failure mileage was 96,000. Source: NHTSA ODI #11682248 · tap to collapse
No
Aug 20
Battery
Aug 20
The contact owns a 2021 Hyundai Kona. The contact stated that while driving at slow speeds in stop-and-go traffic, the vehicle inadvertently lost motive power. The contact was able to restart the vehicle but almost immediately lost motive power. No warning lights were illuminated. The vehicle was towed to an independent mechanic, who diagnosed a failure with the piston oil rings, resulting in damage to the engine. The contact was informed that the engine needed to be replaced. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 21V301000 (Engine); but the VIN was not included. The manufacturer was not notified of the failure. The failure mileage was 96,000. Source: NHTSA ODI #11682248 · tap to collapse
Battery
Excessive oil consumption, over 3 quarts in just 4 months, caused the engine's timing chain to fail due to low oil levels, ultimately leading to a rod punching through the engine. there is a recall for this vehicle but not mine. Source: NHTSA ODI #11676914 · tap to collapse
No
Jul 28
Battery
Jul 28
Excessive oil consumption, over 3 quarts in just 4 months, caused the engine's timing chain to fail due to low oil levels, ultimately leading to a rod punching through the engine. there is a recall for this vehicle but not mine. Source: NHTSA ODI #11676914 · tap to collapse
Battery
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 dealershipâs 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 dealershipâs admission that they couldnât 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 compressorâs 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 dealershipâs error". [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) Source: NHTSA ODI #11674690 · tap to collapse
No
Jul 18
Battery
Jul 18
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 dealershipâs 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 dealershipâs admission that they couldnât 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 compressorâs 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 dealershipâs error". [XXX] INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6) Source: NHTSA ODI #11674690 · tap to collapse
Battery
Car engine is loosing/burning oil at a high rate. This could be best described as an oil ring problem that is included in other kona models but not my specific vin series Source: NHTSA ODI #11671708 · tap to collapse
No
Jul 6
Battery
Jul 6
Car engine is loosing/burning oil at a high rate. This could be best described as an oil ring problem that is included in other kona models but not my specific vin series Source: NHTSA ODI #11671708 · tap to collapse
Battery
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). Source: NHTSA ODI #11669567 · tap to collapse
No
Jun 25
Battery
Jun 25
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). Source: NHTSA ODI #11669567 · tap to collapse
Safety
There has been a continuous popping noise on the right side of the vehicle near the tire like itâs an axle or something with the suspension. It has been checked and I was told it was normal. The horn will stop working along with the radio and other components in the car. The forward front accident component will say Iâve been in an accident when I have not even been near a vehicle. This has happened on several occasions. I donât have all specific dates. Source: NHTSA ODI #11665015 · tap to collapse
No
Jun 4
Safety
Jun 4
There has been a continuous popping noise on the right side of the vehicle near the tire like itâs an axle or something with the suspension. It has been checked and I was told it was normal. The horn will stop working along with the radio and other components in the car. The forward front accident component will say Iâve been in an accident when I have not even been near a vehicle. This has happened on several occasions. I donât have all specific dates. Source: NHTSA ODI #11665015 · tap to collapse
Battery
Fill coolant warning came on, we checked the coolant and the coolant level was good. I spoke to a Hyundai service center and the rep said that sometimes this happens with Hyundais and it may go off. Indeed it did but then Fill coolant warning came back and the coolant level was still good. After several weeks of the Fill Coolant warning being on more often than not, the car started one morning but couldnât be driven as the handbrake was stuck on, the fill coolant warning was on and the tire pressure warning was on, (even though the tire pressure on all tires was ok) I guess this was the EVs way of saying âDo Not Drive Meâ. We got the car to the dealership, they performed a scan and found no codes. They preformed a total coolant flush as per Service Campaign T9E. This service was performed on 21 April, 2025 and thus far the fill coolant light has stated off. We bought this car used just 2 months prior and found through previous maintenance history that this EV had this service Campaign T9E done in January 2024. Our concern with this issue is two fold, 1) My wife could have been anywhere when the car went into: Donât drive me mode. 2) is this going to be an annual event, which will cost several hundred dollars to address each time when this may no longer be covered by warranty Source: NHTSA ODI #11657178 · tap to collapse
No
Apr 27
Battery
Apr 27
Fill coolant warning came on, we checked the coolant and the coolant level was good. I spoke to a Hyundai service center and the rep said that sometimes this happens with Hyundais and it may go off. Indeed it did but then Fill coolant warning came back and the coolant level was still good. After several weeks of the Fill Coolant warning being on more often than not, the car started one morning but couldnât be driven as the handbrake was stuck on, the fill coolant warning was on and the tire pressure warning was on, (even though the tire pressure on all tires was ok) I guess this was the EVs way of saying âDo Not Drive Meâ. We got the car to the dealership, they performed a scan and found no codes. They preformed a total coolant flush as per Service Campaign T9E. This service was performed on 21 April, 2025 and thus far the fill coolant light has stated off. We bought this car used just 2 months prior and found through previous maintenance history that this EV had this service Campaign T9E done in January 2024. Our concern with this issue is two fold, 1) My wife could have been anywhere when the car went into: Donât drive me mode. 2) is this going to be an annual event, which will cost several hundred dollars to address each time when this may no longer be covered by warranty Source: NHTSA ODI #11657178 · tap to collapse
Showing top 50 of 132 complaints (sorted by severity, most recent first).
Full dataset available via NHTSA ODI search.
