2021 Hyundai Kona problems

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 Oct 5, 2026 · Engine, Fuel system · AZ

All 4 fuel injectors failed. They were replaced but the check engine light came back on. Crank shaft sensor was then replaced and now the check engine light is back on. Driving the car waiting for something to fail is not safe

Filed Oct 2, 2026 · Engine · CO

My exact engine was as in a recall but not my car which failed prematurely at 84,000. I have taken extensive maintenance in the car in the for the past 2 years. Hyundai made me pay to tow my car to a dealership denied me for a goodwill replacement with the same exact problems as the same exact recalled engine and stuck me with the bill.

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 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 · WI

2021 Hyundai Kona, VIN [XXX], 45,575 miles. Engine unexpectedly stalled while driving on 45 mph road and stopped at a light. Oil-pressure warning appeared when the engine stalled. Upon checking afterward, the oil level was below the measurable dipstick range with only droplets visible. Approximately 3.5 quarts were added. Vehicle restarted and was driven home. While idling at home, pressing the accelerator caused the engine to stall again. Vehicle had received an oil change at 39,073 miles and oil had also been checked and topped off approximately six months earlier. Cause has not yet been diagnosed. Hyundai VIN lookup currently shows no open or closed safety campaigns. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Jul 22, 2026 · Electrical · 60,000 miles · OH

The contact owns a 2021 Hyundai Kona. The contact stated that while driving at an undisclosed speed, the horn button was depressed but was inoperable. The dealer was contacted and notified of the failure. The contact was informed that the horn needed to be replaced. The vehicle was not repaired. The manufacturer was not notified of the failure. The failure mileage was approximately 60,000.

Filed Jul 9, 2026 · Engine · 85,000 miles · IL

The contact owns a 2021 Hyundai Kona. The contact stated that while driving at approximately 5 MPH while making a turn, the vehicle stalled. Several warning lights illuminated but turned off after the vehicle was restarted. The contact stated that the failure occurred intermittently. The contact stated that several independent mechanics were notified of the failure; however, an appointment was denied due to the absence of illuminated warning lights. The vehicle was not diagnosed or repaired by an independent mechanic or a dealer. The dealer and the manufacturer were not made aware of the failure. The failure mileage was approximately 85,000.

Filed Jun 30, 2026 · Engine, Fuel system · TX

Low speed hesitancy and shuddering. Car has lost power when driving at 55 mph. Car does not want to move at very slow speeds as in a parking garage. It hesitates and starts to roll backwards.