NHTSA Complaint #11693813 — 2013 HYUNDAI SONATA

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.