2019 Hyundai Accent: sudden loss of power

Filed Jan 23, 2026 · Engine · IL

cylinder 3 failure while driving, while merging onto highway traffic vehicle was suddenly unable to to accelerate as there was a sudden loss of power and improper shifting of gears. Engine light came on as well. Car was taken to dealer for excessive burning of oil while under warranty before this event. The vehicle has been inspected by Hyundai dealership and by a private auto mechanic. Both parties indicated independentlya cylinder 3 failure.

Filed Dec 8, 2025 · Engine · OH

Driver: My [XXX] daughter (I was not in the vehicle), I am the owner. Mileage at incident: Approximately 89,000 miles (see Tire Discounters record, page 13). 2019 Hyundai Docs What happened: While driving on the highway, the vehicle suddenly lost power and stalled, requiring my daughter to pull over to the shoulder for safety. After the stall, the vehicle could not accelerate or operate normally. Earlier documented warning: On 9/23/24—only two days after purchase—Firestone documented “metallic glitter in the engine oil – possible internal engine wear,” indicating a possible internal defect (page 2). Hyundai service recommended and provided contact on 2 separate occasions to request Goodwill coverage. First attempt (no claim filed 10/2024), second attempt (claim mishandled by (2) Hyundai Motor America 2019 Hyundai Docs Post-stall findings: After the highway stall on 10/23/25, Tire Discounters documented misfire symptoms and recommended further evaluation (page 13). 2019 Hyundai Docs The vehicle was then towed to Columbia Hyundai, where a diagnostic on 11/12/25 confirmed: 0 PSI compression in Cylinder #3 100% leak-down Piston and cylinder-wall damage Valve/head involvement Recommendation for complete long-block engine replacement (See Columbia Hyundai diagnostic report, page 1.) 2019 Hyundai Docs Safety concern: The vehicle experienced a complete loss of power at highway speed, which created a potentially dangerous situation for the driver. Manufacturer response: Hyundai Motor America denied goodwill assistance and termed as warranty assistance and has not addressed the early-documented internal defect or the safety risk created by the highway stall. Can provide any other documentation needed for your review. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)

Filed Sep 2, 2025 · Acceleration, Electrical · TX · 1 injury

I am reporting a severe and hazardous failure involving my 2019 Hyundai Accent. On August 8, 2025, between 9:00 p.m. and 10:00 p.m., while driving on Mopac (Loop 1), a heavily traveled highway in Austin, Texas, the vehicle abruptly experienced an overheating issue without any prior warning. The engine rapidly lost power, causing the vehicle to become unstable in traffic. I managed to maneuver the vehicle to the far-right shoulder, but when I attempted to accelerate and further distance the car from the road, the engine failed completely, emitting a severe sound resembling an explosion followed by an immediate shutdown, rendering the vehicle inoperable. This failure posed an immediate safety hazard. The vehicle was disabled in a dark and high-speed traffic environment, significantly increasing the likelihood of being struck by other vehicles. During the incident, I encountered difficulty releasing my seatbelt, briefly confining myself inside. The sudden breakdown caused me severe distress, leading to a panic and an asthma attack. Although I did not seek medical attention, the physical and emotional consequences were substantial. Since the breakdown, the vehicle has remained completely undrivable and incapable of restarting. The issue has not been replicated due to the vehicle’s inoperability. Prior to this occurrence, I had maintained regular oil changes and performed necessary maintenance, and no warning lamps, error messages, or symptoms manifested before the failure occurred. The manufacturer has been notified, and I am awaiting review by a case manager. The vehicle hasn’t been inspected by a dealership yet. Following the towing of the vehicle to my residence, a mechanic was dispatched to conduct an inspection. The mechanic indicated that the engine may require replacement. However, insurance representatives subsequently arrived and were unable to provide assistance. They asserted that the issue was of a technical and electrical nature and deemed the vehicle a tot

Filed May 18, 2025 · Acceleration, Engine · GA

About 8 months to a year ago my car started losing power and started using a lot of oil without an oil leak. Now it has a loud knocking noise in the engine. I have taken it to a mechanic and they said they some vehicles have recalls.

Filed Mar 13, 2024 · Engine · NJ

I am writing to bring to your attention a critical safety concern regarding the 2019 Hyundai Accent, specifically regarding the persistent issue of oil burning in the engine. This problem has affected my vehicle, as well as numerous other owners of the same model year. Despite being well within the warranty period, when I brought my 2019 Hyundai Accent with approximately 50,000 miles to the dealership for repairs due to excessive oil consumption, I was met with refusal to address the issue under warranty. Upon further inquiry, it has come to my attention that this problem is widespread among Hyundai engines, with many owners experiencing similar issues. The consequences of this oil burning problem are not only financially burdensome for owners who are forced to continuously add oil between changes, but also pose a significant safety risk. Engine failure due to oil deprivation can result in sudden loss of power, leading to potentially hazardous situations, including accidents and injury. Despite numerous complaints and reports from Hyundai Accent owners, it appears that Hyundai has failed to take appropriate action to rectify this issue and ensure the safety and reliability of their vehicles. Therefore, I urge the federal safety agency to investigate this matter thoroughly and take necessary actions to hold Hyundai accountable for their failure to address this widespread and potentially dangerous defect in their vehicles. Owners like myself deserve a prompt and effective resolution to this issue to ensure the safety and integrity of our vehicles. Thank you for your attention to this matter.

Filed Feb 11, 2023 · Engine · VA

The engine has been consuming excessive amounts of oil since the vehicle was purchased used in Aug 2022. Eventually during normal highway driving the engine made a loud knock, lost all power, and all of the oil began spilling out of the engine creating a large oil slick on the highway. The sudden lose of engine power led to difficulty steering and braking to move the vehicle to the shoulder of the road.