2020 Hyundai Kona Complaints

ENGINE — Filed 05/16/2026

The Kona was driven a 1/2 hour before parking the vehicle. The Kona was turned off. Within 5 minutes smoke began wafting from under the hood. When I opened the hood to inspect I found the engine & underside of the hood was engulfed in flames. I closed the hood immediately. The Kona fully ignited with minor explosions & burnt completely to the metal frame within 25 minutes.

ENGINE,FUEL/PROPULSION SYSTEM — Filed 10/27/2025

The car failed to accelerate on highway on multiple occasions, including when slowing down and then trying to accelerate when pulling out on highways.

ENGINE — Filed 05/28/2026

The contact owns a 2020 Hyunndai Kona. The contact stated while attempting to start the vehicle, the check engine warning light illuminated. The contact's fiance, who is an independent mechanic attached the portable diagnostic tester to the vehicle, and the failure code was P1327. The dealer was made aware of the failure but provided no assistance. The contact was informed that the repair was not covered under warranty. The contact referenced an unknown recall; however, the VIN was not associated with a recall related to the failure. The manufacturer was made aware of the failure and a case was filed. The contact as advised to take the vehicle to the dealer for diagnostic testing. The failure mileage was approximately 117,000.

SERVICE BRAKES — Filed 05/15/2026

I am receiving an intermittent "check regenerative brake" message. The message will clear automatically and then reappear every three to four weeks. An internet search reveals this is a common error for the Kona. Most people report no repair by the dealer. In several cases, the brakes stopped working, resulting in collisions. The hydraulic breaks do not work if the regenerative brake system fails leaving you with no way to stop the car. The manufacture has no solution.

STRUCTURE — Filed 05/09/2026

2020 Hyundai Kona, ~36,300 miles. Driver's side door latch assembly. On or around May 9, 2026, an abnormal mechanical noise began coming from inside the driver's door whenever the key fob lock/unlock button was pressed, consistent with a failing latch actuator. I booked a service appointment, and on May 15, 2026, an authorized Hyundai dealership confirmed the defect and recommended full replacement of the driver's door latch assembly. The vehicle is available for inspection. A latch that does not reliably operate is a serious safety risk. The driver's door is the primary egress point. An intermittent or inoperative latch could prevent emergency exit, block post-collision egress, or prevent first-responder access. The vehicle regularly transports children, increasing the consequence of any failure. No dashboard warning lights, alerts, or messages preceded the failure. This is a mechanical defect that does not trigger electronic warnings. Hyundai TSB 21-BD-006H (May 2021) acknowledges this exact failure mode — door handle inoperative or requiring repeated attempts to open — on the Elantra (AD/ADa) and Tucson (TL). The remedy is full latch assembly replacement, and Hyundai extended warranty coverage on the latch to 10 years / unlimited miles on those models. The 2020 Kona is not named in 21-BD-006H despite exhibiting the identical failure mode at low mileage on a 6-year-old vehicle. The defect appears to extend to the Kona platform and is not currently covered. Vehicle has not been inspected by Hyundai corporate, police, insurance, or independent shops. Filing this complaint to record the cross-platform defect pattern and request that NHTSA evaluate whether the door latch warranty extension should be expanded to include the Kona.

VEHICLE SPEED CONTROL,ENGINE — Filed 05/11/2026

The vehicle all shut off as I slowed down for a stop sign. Put in Park turn the key off restarted it got to the next stop sign same thing. Also the red light same had to shut it off put it in put in Park shut off and then restart and step on the gas so I can get through before a car hit me. Happened several times till I finally got the car home done it started knocking loudly and shut off just as I got into my driveway. Check the oil. The oil is fine. Occasionally the oil light would come on if you put in Dr.. It is knocking really loud. The engine light keeps flashing constantly. I called Brown Dobb Hyundai in Easton Pennsylvania. They told me this recall has nothing to do with my car because of the VIN number. But everything that is happening to it is is under recall 187. But because of the VIN number they are insisting it’s not my car. What can I do before I get in an accident? I don’t have any other cars to rely on. I have a son with Autism and I am a single mother. What else can I do? I had this car not even three months.

ENGINE — Filed 05/11/2026

Engine light comes on starts flashing as well as the oil light occasionally. If you slow down or have to stop it completely shuts down you have to put in park and restart the car to get anywhere and start stopping in front in the middle of traffic. So if you slow down to go up a hill or anything, it just stops completely. Also making a clicking or grinding sound not sure.

VEHICLE SPEED CONTROL,SERVICE BRAKES — Filed 03/30/2026

I stopped my car foot on brake put it in park and it accelerated on its own and forced me to crash into a concrete wall still not wanting to stop

ENGINE — Filed 02/27/2026

On February 27, 2026, my 2020 Hyundai Kona (Recall 203) suffered a catastrophic engine stall while driving, requiring an emergency tow. The dealership (Rosen Hyundai) and Hyundai Motor America are refusing to perform the Safety Recall 203 remedy unless I first pay $4,715.26 for a timing repair. I was also required to pay $453.05 for wiring repairs just to "enable" the recall test, yet the recall remains unaddressed because of a financial paywall. I am reporting an obstruction of a federal safety recall by the manufacturer.

POWER TRAIN — Filed 02/01/2026

The contact owns a 2020 Hyundai Kona. The contact stated that during a regular maintenance visit, the contact was informed that there was a leak coming from the front axle transfer case, which was initially unrepaired. The vehicle was subsequently taken to a dealer in Colorado, where the seal was replaced. However, while an oil change service was being performed later, it was discovered that the failure recurred because the previous repair was performed incorrectly. The first failure was for an inoperable seal, and the second failure was due to an improper repair. The third inspection confirmed that the seal had not been installed correctly during the prior service. The dealer was notified of the failure. The vehicle was not repaired. The manufacturer was notified of the failure. The failure mileage was 146,000.