2021 Hyundai Kona engine problems

“The contact owns a 2021 Hyundai Kona Electric. The contact stated that since purchasing the vehicle, an abnormal rumble sound was heard that grew progressively louder. Additionally, while accelerating from a complete stop, the vehicle was significantly sluggish. The failure recurred while driving at 30 MPH, requiring the driver to pull over to the shoulder of the road. Upon shutting off and restarting the vehicle, the vehicle returned to normal operation. The vehicle was taken to a dealer, who was unable to duplicate the failure during a test drive. The vehicle was returned to the dealer, who confirmed the failure; however, the contact was informed that the failure was not associated with TSB Number: 22-EV-001H (KONA EV MOTOR RUMBLE NOISE) because the rumble sound was not sufficiently loud. The contact stated that the sound had grown significantly louder. The vehicle was scheduled to be towed to the dealer. The failure mileage exceeded 60,000.”

“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”

“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.”

“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…”

“"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.”

“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.”