Hyundai Sonata shudder problems

Filed Oct 7, 2026 · Steering · 110,000 miles · MD

The contact owns a 2013 Hyundai Sonata. The contact stated that while driving approximately 70 MPH, the steering wheel shuddered violently, pulled towards the left or the right. The vehicle was taken to a local dealer where it was diagnosed, and the failure was associated with Technical Service Bulletin: 17-ST-002. The contact attempted to repair the vehicle; however, the clockspring was damaged. The manufacturer was made aware of the failure. The failure mileage was approximately 110,000.

Filed May 19, 2026 · Engine, Fuel system · 140,000 miles · FL

The contact owns a 2021 Hyundai Sonata. The contact stated while driving at an undisclosed speed, the engine shuddered and the engine stalled. In addition, the engine seized. No warning lights were illuminated. The contact stated that the vehicle was seized in the middle of the road. The contact stated that while attempting to start the vehicle, the vehicle started. The failure reoccurred. The vehicle was towed to the residence. The vehicle was not diagnosed or repaired by an independent mechanic or dealer. The manufacturer was made aware of the failure. The failure mileage was approximately 140,000.

Filed Feb 5, 2026 · Engine · OH

While driving the vehicle, I repeatedly must check and put oil in. (On average once per week) I took the car to an auto shop where I was told that the engine was bad and I must get a new one. I kept driving, putting oil in as needed, then the car in the middle of driving started to shudder and the check engine light came on. I parked the car and haven't driven it since

Filed Jan 30, 2026 · Electrical, Engine · 32,000 miles · FL

The contact's mother-in-law owns a 2019 Hyundai Sonata. The contact stated that while driving at an undisclosed speed, the vehicle started shuddering. There was no warning light illuminated. Minutes later, the failure reoccurred with the messages "Check Hybrid System” and “Turn Engine Off" being displayed. The contact immediately pulled over and had the vehicle towed to a dealer for assistance. A diagnostic test was performed, and it was determined that there was engine failure and that the engine needed to be replaced. The dealer requested proof of the last two oil changes. The contact obtained a Carfax Report, which showed proof of the oil changes and maintenance records. The manufacturer denied the goodwill request after several months of negotiations. The vehicle remained with the dealer unrepaired. The failure mileage was approximately 32,000.

Filed Jan 26, 2026 · Engine · NY

My Hyundai Sonata has encounter two failing cylinders (compression loss) due to scoring. When driving in the highway I got engine shudder and loss of power (speed) that could have put me in dangerous driving condition, accident or other. These GDI engines are notorious for poor oil circulation due to faulty designed piston rings. Hyundai has long history with these poorly manufactured engines and class action lawsuits. I notified Hyundai but they are not willing to remedy the situation. I have worked with local dealership Miller Hyundai, as well as corporate. All I get are excuses and that I’m not covered. These engines are completely problematic with oil consumption and oil blow by, causing seizing, rod bearing failure, carbon buildup, cylinder damage, etc. The info on the internet over customers and these GDI engines is overwhelming. Oil related Fires are another issue as well. Hyundai needs more accountability than the class action for rod baring failures. Because of the damage to my pistons, I could have gotten in accident with loss of power on highway…full due to poor piston rings, damage from improper oil flow and near complete engine failure.

Filed Oct 16, 2025 · Engine · MD

Driving at 70 mph on the highway, the engine seized without warning. The car violently shuddered and rapidly decelerated in the travel lane. A fully-loaded semi-truck was directly behind me and had to swerve violently and brake hard to avoid crushing my vehicle. This created an immediate, life-threatening risk of a catastrophic, high-speed rear-end collision. The failure is with the internal engine assembly (likely connecting rod bearings) and is available for inspection. The dealer confirmed the engine failure but denied the repair. This is a known defect. The "Engine Oil Pressure" warning light flashed and a loud engine knocking began moments before the total power loss. This is a dangerous defect that causes sudden, unpredictable stalling at highway speeds.

Filed Aug 29, 2025 · Engine · 117,000 miles · TX

The contact owns a 2018 Hyundai Sonata. The contact stated that while driving approximately 60 MPH, the vehicle shuddered before losing automotive power. The check engine warning light was illuminated. The vehicle was taken to a local dealer, where it was diagnosed and determined that the engine and NOx sensor needed to be replaced. The vehicle was repaired; however, the failure reoccurred. The vehicle was taken back to the same local dealer on several occasions for the repair; however, the failure reoccurred. The manufacturer was not made aware of the failure. The failure mileage was approximately 117,000.

Filed Jun 26, 2025 · Engine, Transmission · IA

Our 2015 Sonata has experiencing Engine failure several times due to excessive and irregular oil consumption. Our family’s safety and the safety of others on the roadway were put at risk as the engine slows, shudders and stalls without prior warning and the check engine light does not come on until the vehicle slows and stalls. The vehicle was inspected at a local Hyundai dealership, and they indicated that this is not covered under warranty. Summary of Engine Issues and Failures: 1.May 3, 2022 – 68,671 miles (local Hyundai dealer) Check engine light on, shudder; oil change performed. No cause identified. Paid out-of-pocket. 2.August 23, 2022 – 75,527 miles (retail shop) Car engines failed on highway, towed to service shop. Valve cover gaskets replaced. Paid out-of-pocket in part and extended warranty paid part of the invoice. 3.April 29, 2024 – 109,229 miles (local Hyundai dealer) Excessive oil consumption noted; valve cover gasket replaced again. Paid out-of-pocket. 4.January 22, 2025 – 118,341 miles (local Hyundai dealer) Vehicle stalled en route to airport, towed to dealership; dealership advised oil change. Paid out-of-pocket. 5.May 20, 2025 – 122,000 miles (local Hyundai dealer) Engine codes P0300, P0302, P0303 identified. Dealer diagnosed excessive oil consumption likely due to ring wear or sticking rings, contributing to spark plug misfires. Recommendation: Engine replacement. Despite consistent and timely service, including multiple visits to the Hyundai dealership, the root issue has not been properly addressed. The current diagnosis of internal engine failure is a clear continuation of a pattern of unresolved engine problems (stalling in motion, oil leaks and oil consumption) all of which originated well within Hyundai’s original warranty. The vehicle has been well maintained, and all recalls have been addressed in a timely manner. Hyundai’s failure to acknowledge and take responsibility for this widely documented engine issue is a safety concern.

Filed Feb 10, 2025 · Engine · 88,000 miles · AL

The contact's daughter owns a 2016 Hyundai Sonata. The contact was informed by her daughter that while driving at various speeds, the vehicle was shuddering significantly. The check engine warning light was illuminated. The vehicle was taken to the dealer, where it was diagnosed and determined that there was oil leaking onto the spark plugs and causing the spark plugs to short circuit. The dealer replaced the park plugs several times; however, the failure persisted. Additionally, the contact stated that the vehicle was experiencing excessive oil consumption. The vehicle was taken to the dealer several times, where an oil consumption test was performed, and the dealer confirmed that the vehicle was experiencing excessive oil consumption. The contact stated that her daughter had received an unknown engine recall notice, which the contact related to the failure. The vehicle was not repaired. The contact stated that she was concerned for her family's safety. The manufacturer was notified of the failure and several cases were filed; however, no further assistance was provided. The failure mileage was approximately 88,000.

Filed Nov 27, 2024 · Engine · 132,000 miles · VA

The contact owns a 2016 Hyundai Sonata. The contact stated that the vehicle was experiencing excessive oil consumption. The contact stated that 30 quarts of oil had been added to the vehicle in the past four months. The contact stated while driving 65 MPH on the freeway, the vehicle started shuddering. The check engine warning light was illuminated. The contact was able to exit the freeway; however, the vehicle stalled. The low oil pressure warning light was illuminated. The contact was able to pull into the nearest parking lot, and the contact turned off the vehicle. The vehicle had not been taken to the dealer. The vehicle was not diagnosed or repaired. The contact related the failure to undisclosed recalls. The manufacturer was made aware of the failure and confirmed that there were no recalls associated with the VIN. The manufacturer advised the contact to have an oil change performed on the vehicle. The failure mileage was 132,000.