Hyundai Kona engine failure problems

Filed Oct 16, 2026 · Engine · FL

While driving my 2019 Hyundai Kona with the 2.0L engine, the engine suddenly began making a loud knocking sound. Immediately after exiting the highway onto a main street, the vehicle stalled in active traffic, causing a sudden loss of motive power and creating a significant safety hazard. The first Hyundai dealership documented an engine knock and reported diagnostic trouble codes P0011, P0014, P0017, and P0366, involving camshaft timing and correlation. I was subsequently informed that the engine had suffered a catastrophic internal failure. A second Hyundai dealership later diagnosed a connecting-rod bearing failure affecting Cylinder 2. My vehicle is covered by Hyundai Recall 203, which concerns defective piston oil rings that can lead to abnormal oil consumption, engine damage, and potentially engine stalling. The vehicle previously passed Hyundai’s recall inspection/software procedure, but the engine has now experienced a catastrophic mechanical failure involving knocking and sudden stalling while driving. Hyundai has declined to replace the engine under the recall and has attributed the failure to an out-of-warranty maintenance/oil-related issue. I am also concerned about the reliability of the diagnostic process: the first dealership initially told me that a compression test had been performed and supported its conclusion about the engine failure, but later confirmed that no compression test had actually been performed. I am concerned that the prior recall remedy or inspection did not adequately identify or prevent the defect, and that an affected vehicle was allowed to remain in service until it suffered sudden engine failure and loss of motive power in traffic. I am requesting that the federal safety agency investigate whether this failure is related to Recall 203 and whether the recall remedy adequately protects owners whose vehicles initially passed the inspection but later experience engine damage, knocking, or stalling.

Filed Oct 13, 2026 · Brakes, Driver assistance · GA

My 2021 Kona has undergone five separate oil consumption checks. The engine is depleting oil at an abnormal rate, creating a clear risk of sudden catastrophic engine failure and highway stalling. Dealership service personnel have repeatedly dismissed consumption data despite documented top-offs between 500 and 1,000 miles. Furthermore, this vehicle has already required an entire brake system replacement due to unidentifiable system failures, establishing a continuous history of substantial defects impairing its safety, market value, and use.

Filed Sep 30, 2026 · Engine · OH

My 2021 Kona Limited 1.6L Turbo is consuming oil so rapidly that the Low Oil Pressure light has activated on the highway, creating a sudden risk of stalling and engine failure, that the dealership and Hyundai are declining service. According to research, when your oil pressure light flashes, your engine is moments away from locking up. If that happens at 65 mph on a highway, it is a catastrophic safety risk. I am the original owner of 2021 Kona Limited under warranty. The dealership refused to help me after my car lost oil, citing one missed service from over three years ago. That gap was due to a severe family medical emergency where my partner was hospitalized off and on for over three months. My vehicle has a proven history of dealer maintenance before and after that event. This is the 4th time the car has totally lost oil, with no indications that is was even close or anything wrong until it was empty the warning came and check to find zero oil. The first time it happened on 2/4/2026 the dealership did not make a record and had me come back in 1000 miles to have it checked and they said it was fine. The next 2 times were recorded with Hyundai dealership and I was told that due to "Gross Maintenance Neglect" Hyundai declined any additional services. They put the car back together just replacing the fuel line/hose. On 9/23/2023 the check oil light blinked for 1-3 seconds. I was 3 minutes from home parked, allowed the car to cool and checked oil, again there was none. Put 4 1/2 quarts and that is what it holds and the next morning went to the dealership, where I was turned away, with them saying Hyundai declined any additional services for this issue and there was nothing they could do. I was told to contact corporate, I did that minute from the parking lot. Given a case number and told I would be contacted, went over all of the issues again with corporate and today was told they are still declining any service even though it is still under warranty.

Filed Sep 11, 2026 · Engine · OH

"The vehicle suffered sudden internal engine failure while in operation due to catastrophic oil starvation, presenting a severe risk of engine stalling and loss of propulsion on the road. Active diagnostic codes are P0014, P0017, and P0303. An independent mechanic confirmed the engine was found 3 quarts low on oil with absolutely no external leaks or pooling under the vehicle, indicating massive internal oil consumption. This vehicle has been meticulously maintained with 11 consecutive oil changes logged between 15,202 miles and 115,926 miles. This oil loss starved the hydraulic timing components of fluid pressure, causing immediate timing failure. The manufacturer's current safety recall campaign (Recall 203) fails to include this specific VIN despite the vehicle exhibiting the exact engine failure defect profile.

Filed Aug 25, 2026 · Engine · MD

My 2020 Hyundai Kona experienced an engine-related malfunction. An authorized Hyundai dealer inspected the vehicle, confirmed diagnostic code P1327, and determined that the complete engine required replacement. Hyundai authorized the replacement, and the vehicle remained out of service for approximately two weeks. The engine defect created a safety concern because an engine malfunction could cause reduced or complete loss of motive power while driving, increasing the risk of a crash. The dealer inspected and removed the original engine; I do not know whether it remains available for further inspection, but the repair order and diagnostic records are available. I am filing this complaint so the federal safety agency can document this engine failure and determine whether it is related to the federal safety agency Campaign 21V301 / Hyundai Recall 203 and whether additional investigation or corrective action is warranted.

Filed Aug 24, 2026 · Engine · 11,000 miles · FL

The contact owns a 2024 Hyundai Kona. The contact stated that while driving at an undisclosed speed, the message to “Turn off Engine and Restart Engine” was displayed and the engine seized. The contact stated that the failure had occurred while driving on a busy highway. The contact stated that while attempting to restart the vehicle, the vehicle started. The vehicle was taken to the dealer; however, the failure was not duplicated. The contact stated that four months later the failure reoccurred. The failure became a persistent failure. The manufacturer was not made aware of the failure. The failure mileage was approximately 11,000.

Filed Aug 21, 2026 · Engine · AL

At approximately 100,500 miles, the 2.0L Nu engine experienced a sudden, catastrophic internal failure while operating, causing a loss of power and stalling. Failed Component & Availability: The engine block assembly failed internally due to severe low compression (95 psi) across multiple cylinders and intake valve leakage. The original failed engine component was replaced and retained by the servicing dealership's service department during the long-block replacement. Safety Risk: The sudden loss of engine power and stalling occurred while navigating active traffic, creating an immediate crash hazard due to the loss of momentum and propulsion on a public roadway. Diagnosis & Confirmation: The failure was independently confirmed by a certified master mechanic (compression test showing 95 psi) and subsequently diagnosed and confirmed by an authorized manufacturer dealership service department. Inspection History: The vehicle was fully inspected by the authorized dealership, which verified the low compression, confirmed internal engine failure, and performed a full long-block engine replacement.

Filed Aug 18, 2026 · Engine · 81,000 miles · CT

The contact's daughter owns a 2019 Hyundai Kona. The contact stated that while her daughter was driving 40 MPH, smoke started coming from under the hood. The vehicle lost power and came to a stop in front of a convenience store, blocking the entrance. Several unknown warning lights were illuminated. The driver called the Fire Department, and it was confirmed that the engine compartment displayed severe heating damage. There was no fire. The firemen on the scene recommended that the vehicle be towed. The vehicle was towed to an independent mechanic, and the contact was informed that the failure was a known failure and might be covered under an extended warranty program. The vehicle was towed to the dealer, where it was diagnosed and determined that the engine had seized. No electrical failure was found. The dealer initially offered to cover 95% of the cost of the repair. The manufacturer was notified of the failure and offered to cover 85% of the cost of the repair, but the contact declined. The contact stated that the Knock Sensor Detection System (KSDS) software update had previously been completed on the vehicle; however, the update failed to prevent the engine failure. The manufacturer informed the contact that the extended warranty could not be applied due to a transfer of ownership to the contact's daughter. The failure mileage was approximately 81,000.

Filed Jul 16, 2026 · Engine · TX

The vehicle suffered a sudden, severe loss of power while driving, causing the engine to stall unexpectedly. This created an immediate hazard to myself and other motorists on the road, as I was forced to navigate a dead vehicle out of active traffic without power steering or power braking assist. Prior to the total failure, the engine exhibited severe mechanical knocking, loss of acceleration, and high oil consumption without any visible external oil leaks. This engine failure is a direct result of the manufacturing defect detailed in the federal safety agency Safety Recall 203 (the federal safety agency Campaign 21V301000) concerning improperly heat-treated piston oil rings that cause severe cylinder scuffing and engine stall. Although the software update (Campaign 974) was previously completed on this VIN, the physical defect was never mechanically repaired. The software update failed to prevent the physical, defectively manufactured components from destroying the engine. Hyundai is refusing to honor the safety campaign and replace the failed engine because the recall database incorrectly lists the recall status as "completed."

Filed May 19, 2026 · Engine · MS

I purchased my 2022 Hyundai Kona on August 28, 2024, and I am the first registered owner. Only 48 days after purchase, the vehicle suddenly broke down without warning while stopped at a red light in [XXX] after traveling from [XXX] . The vehicle had to be towed. Since then, the vehicle has repeatedly experienced dangerous engine and timing-related issues despite major repairs, including an engine replacement, timing chain repairs, and multiple dealership inspections. The most dangerous incidents involve sudden power loss and large clouds of smoke while driving. On January 1, 2026, while attempting to pass a semi-truck on a multi-lane highway, the vehicle suddenly lagged, lost acceleration power, and emitted a large cloud of white smoke from the exhaust. This created an extremely unsafe situation because I was actively passing traffic at highway speeds and could have been struck by surrounding vehicles. I have also experienced these failures late at night on busy highways while traveling between [XXX] and [XXX] . In March 2026, the vehicle again emitted a large cloud of smoke and resumed lagging during acceleration. On April 23, 2026, Hyundai of Meridian informed me they personally witnessed the vehicle emit another large cloud of black smoke during test driving. These smoke events can reduce visibility for surrounding drivers and create hazardous roadway conditions. The vehicle has spent approximately 149 days in repair facilities, nearly 24% of the time I have owned it. Multiple dealerships documented timing chain slack, cam timing issues, and major engine concerns. Despite the recurring failures and safety concerns, Hyundai denied replacing the engine again and denied buying back the vehicle. I no longer feel safe operating this vehicle due to the risk of sudden power loss, engine failure, and smoke emissions while driving in traffic. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)