Hyundai Kona Complaints

964 consumer complaints on file.

#11711457January 16, 2026
ELECTRICAL SYSTEM:12V/24V/48V BATTERY
The contact owns a 2025 Hyundai Kona. The contact stated that while upon starting the vehicle, the vehicle failed to respond as intended, and the vehicle needed to be jump-started. The vehicle was taken to a dealer to be diagnosed; however, the diagnostic result was unknown. The vehicle was not repaired. The failure had occurred on several occasions. The manufacturer was notified of the failure and informed the contact that the vehicle did not fall under the Lemon Law. The failure mileage was 12,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11710576January 13, 2026
UNKNOWN OR OTHER
I brought vehicle in once for horn not working to dealer. They fixed it. Seven months later in a near traffic incident horn not working. Outside temperatures were below freezing at the time. Following week outside temperatures goes above freezing & horn is working again. It appears horn has an intermittent problem.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11710179January 11, 2026
LANE DEPARTURE: BLIND SPOT DETECTION
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)
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11708967January 5, 2026
POWER TRAIN
While driving under normal conditions, the vehicle’s dual-clutch transmission (DCT) failed to engage properly, causing a sudden and unexpected loss of propulsion. When the accelerator was pressed, the vehicle hesitated and did not respond as commanded, resulting in delayed or no acceleration. This occurred while driving in traffic at approximately 30 mph while trying to acceletate to merge onto highway and has happened multiple times. In some instances, the vehicle appeared to remain in gear but would not accelerate, and in other instances the transmission disengaged before re-engaging unpredictably. This created an unsafe situation, as the vehicle could not maintain speed or merge safely, significantly increasing the risk of a collision, especially in traffic or at intersections. The issue occurred without sufficient warning and continues to happen intermittently during normal driving.The vehicle was inspected by a dealership, which stated the condition is related to a clutch issue within the dual-clutch transmission and acknowledged it is a known issue affecting this transmission. The dealership further stated the issue would not be repaired because the vehicle is out of warranty.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11708778January 5, 2026
VISIBILITY
The contact owns a 2024 Hyundai Kona. The contact stated while driving approximately 65 MPH, the sunroof glass panel shattered unexpectedly with a loud pop. Upon further inspection, the contact noticed that the remaining fractured sunroof glass panel was bowed outward. The local dealer was contacted; however, the vehicle was not diagnosed or repaired. The manufacturer was not made aware of the failure. The failure mileage was approximately 13,000.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11708650January 4, 2026
UNKNOWN OR OTHER
Safety system that automatically puts the car in park if a door is opened while in gear failed to apply
Crash:
No
Fire:
No
Injuries:
1
Deaths:
0
#11708153January 1, 2026
ENGINE
Prior to 100,000 miles, I noted knocking in the engine, especially while going uphill. The knocking would appear and disappear, possibly with oil change intervals. No check engine light ever appeared. After 100,000 miles, the engine progressively began knocking, losing power, and eventually stalling on the road occasionally. I have had to put on my hazards and restart my car. One time, I was barely able to pull over to the side. Again, no check engine light ever appeared. I have several videos of the vehicle in motion with audible knocking, and almost stalling. The videos show the dashboard with NO check engine light appearing. There was no sign of oil loss. No smoke. No oil stains under the vehicle. I was due for an oil change when the knocking and stalling became severe. I visited the dealer and informed them of the engine issues. They performed an oil change. And then could not reproduce the problem I experienced. Told me to come back if it happened again. This sounded odd to me given the severity of the knocking and stalling. Or it signaled to me that an oil change including refilling the oil solved the issue. Long story short. An oil consumption test was performed. The engine is consuming oil. I am scheduled for combustion chamber cleaning per the Technical Service Bulletin, as mentioned by the service rep. I am not confident that this will fix the problem. Given that this is the same / similar engine as the recalled 2018-2021 Kona for the same / similar issue. Oil consumption.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11708210January 1, 2026
ENGINE
-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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11707833December 30, 2025
VEHICLE SPEED CONTROL, SERVICE BRAKES, FORWARD COLLISION AVOIDANCE: AUTOMATIC EMERGENCY BRAKING
After a routine service visit, the vehicle’s braking and speed‑control systems began to behave abnormally. The ABS/ESC control module was replaced or reprogrammed without documentation, and immediately afterward the vehicle’s braking feel, speed‑control behavior, and forward‑collision warning timing changed noticeably. These changes created a safety risk because the vehicle no longer responded in a predictable way compared to its original performance. The affected components are available for inspection upon request. The issue was reproduced multiple times under normal driving conditions. Braking response became inconsistent, and the speed‑control system no longer behaved as it did before the service. The timing and behavior of forward‑collision alerts also changed compared to pre‑service operation. These changes created unpredictability in traffic, especially during following‑distance adjustments, stop‑and‑go situations, and sudden‑braking scenarios. The dealership did not provide technical documentation or explanation for the module replacement or configuration changes and did not acknowledge the change in system behavior. The manufacturer’s customer service reviewed the case but did not provide technical findings. An independent service center could not verify the original configuration because the manufacturer did not provide the Manufacturer Build Sheet. The vehicle has not been inspected by police or insurance representatives. No warning lamps or dashboard messages appeared before or after the issue. The only indication of a problem was the sudden change in braking, speed‑control, and forward‑collision system behavior immediately after the service visit.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11706678December 22, 2025
ENGINE
The car's engine stuttered after pressing on gas pedal when engine is cold. When pressing on gas pedal from idle position at STOP sign, engine does not switch from 1st -> 2nd gear.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11705843December 18, 2025
ENGINE
Vehicle Safety Complaint Narrative On Saturday, December 6, 2025, I brought my 2019 Hyundai Kona to Millennium Hyundai in Hempstead, New York, the dealership where the vehicle was purchased, for evaluation due to engine safety concerns. While driving the vehicle, we heard a knocking sound coming from the engine. One week earlier, on November 29, 2025, we brought the vehicle to our local mechanic after noticing the noise. The mechanic advised that the engine oil level was low and refilled the oil. Despite this, the knocking sound continued. Due to ongoing concerns about potential engine failure and because the vehicle is still under warranty, we scheduled an appointment with Millennium Hyundai for further diagnosis. The knocking noise raised serious safety concerns. On December 6th, we contacted the service manager, who advised us that the pistons were bad and they would need to replace the engine. On Monday, December 8th, we called the dealer and they then told us, that before any work could be done, that we would have to do an oil change for $90, drive the car for 1,000 miles and come back for an oil consumption test for $600 before they could make the repairs under the warranty. We are submitting this complaint to report a potential safety defect related to engine performance and reliability in the 2019 Hyundai Kona, as unexpected engine failure could pose a significant safety risk and, their requirement that we have to drive an unsafe car for 1,000 miles could be dangerous to the driver, passengers, and others on the roadway.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11705927December 18, 2025
ENGINE
I believe that I’m leaking oil somewhere and that it’s due to the recall with the piston oil rings that’s on my car
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11704777December 12, 2025
ELECTRICAL SYSTEM
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11704368December 10, 2025
ENGINE
I am having issues with my oil consumption and my car is going through a quart of oil every 1-1.5 weeks. There have been similar recalls on the 2019 Kona’s which have the same 1.6L 4-cylinder engine. My car is currently a little over 126,000 miles
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11704314December 10, 2025
ELECTRICAL SYSTEM, UNKNOWN OR OTHER
December 2025: Yet ANOTHER horn failure. Pressed the vehicle's horn to alert another driver that they were drifting into my lane on the highway, and it FAILED to produce the loud sound that it is SUPPOSED TO make. It needed to be replaced again for the FOURTH time. Part 96611-J9500 was replaced—AGAIN. This is a continued safety issue that Hyundai has neglected to address and fix. Spontaneous horn failure is a HAZARD. The horn is there to warn others of possible danger.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11704312December 10, 2025
ELECTRICAL SYSTEM, UNKNOWN OR OTHER
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.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11704307December 10, 2025
UNKNOWN OR OTHER, ELECTRICAL SYSTEM
JANUARY 2024: HORN 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. Part 96611-J9500 was replaced AGAIN.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11704305December 10, 2025
UNKNOWN OR OTHER, ELECTRICAL SYSTEM
February 2023: horn 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. Part 96611-J9500 was replaced.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11702467December 2, 2025
ENGINE, UNKNOWN OR OTHER
I am reporting a recurring safety issue involving engine stalling in active traffic due to excessive oil loss and internal component failure. This has occurred three times within approximately 12,000 miles and has created dangerous conditions for my family, including my 2.5 year old child who rides in the vehicle. Summary of incidents: • May 15, 2025 – 61,736 miles: Vehicle stalled in traffic and lost acceleration. Dealership confirmed abnormal noise and low oil, but no oil consumption test was ordered. • Fall 2025 – 66,448 miles: Vehicle stalled and died on the highway. Diagnosis showed broken camshaft timing components. Service invoice states the engine oil system was too low and caused internal failures. Major timing components replaced. • October 30, 2025 – 69,175 miles: Vehicle stalled in traffic again. Oil was low after only 2,727 miles since previous repair. Dealer advised oil consumption test after another 1,000 miles, but I do not feel the vehicle is safe to drive due to repeated stalling and internal failures. At the most recent incident the dealership confirmed the oil level was again low, but did not identify the cause or perform consumption testing until after repeated failures. These repeated stall events are serious safety hazards and could result in a collision or injury. I have lost confidence in the safety of the vehicle. Based on consultation with an experienced engine mechanic, underlying internal damage from oil starvation is likely and may indicate piston ring or engine defect consistent with known Hyundai/Kia oil consumption issues. Hyundai has declined to provide a buyback or full repair solution and the vehicle continues to demonstrate dangerous conditions. We have purchased a full warranty for the engine but warranty company will not cover it as they are saying this is a pistons issue - wear and tear. I am requesting NHTSA investigation and assistance to ensure this defect is addressed before someone is injured.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0
#11702287December 1, 2025
ENGINE
I'm the owner of a 2019 Hyundai Kona (US spec) imported to Poland. The VIN is included in recall 21V-301 (fire risk). The engine showed symptoms consistent with this defect and failed at 44,000 miles. Photos confirm cylinder damage. Following Hyundai Motor America (HMA) instructions, I completed diagnostics at an authorized Hyundai service center in Poland. Results: error P0366, compression 2–3 bar. HMA refused to accept these documents, demanding a specific “Repair Order” format, which European dealers cannot issue. No real coordination with regional offices occurred, making compliance impossible. HMA then issued a warranty-related denial (not requested), citing salvage status, although it is irrelevant to the mandatory recall remedy. HMA also stated diagnostics must be done in the USA, which is impossible for a non-operational vehicle located in Poland. At the same time, Hyundai Motor Poland provided incorrect information (claiming two total-loss incidents instead of one) and advised dealers not to perform any work. As a result, Hyundai service centers in Poland refused further diagnostics and repairs, blocking access to the recall remedy. The manufacturer provided no feasible path to obtain the remedy and created barriers that made the recall effectively inaccessible. I also incurred unnecessary diagnostic costs. I request that NHTSA review HMA’s actions under campaign 21V-301 regarding my VIN, assess the creation of barriers preventing remedy access, evaluate Hyundai’s refusal to provide a feasible solution, and determine whether Hyundai fulfilled its obligations to ensure remedy accessibility for an owner located outside the USA. Additional evidence and a detailed timeline are attached. Details are provided in the attached file COMPLAINT.pdf.
Crash:
No
Fire:
No
Injuries:
0
Deaths:
0

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