hyundais deadly engine scandal

In 2015, Hyundai recalled 470,000 Sonatas over an engine defect and told regulators it was limited to one product line. Kia checked its own assembly line, found low warranty claims, and recorded a decision in its files: no action required. A Hyundai safety engineer named Kim Gwang-ho had seen an internal report saying otherwise. He reported his employer to a foreign government, was fired for it, and five years later received the largest whistleblower award in the history of US auto safety regulation. This is the story of the Theta II engine — why metal debris left in a crankshaft destroys connecting rod bearings, what Hyundai and Kia did between 2015 and 2017, and what owners eventually got. If you drive a Sonata, Santa Fe, Optima, Sorento or Sportage from these years, the last section is the one you want. SOURCES Every claim is sourced. Pull the documents yourself. Kia Part 573 defect chronology, NHTSA RMISC-17V224-3802 (the "no action required" and "monitoring" entries, and everything Kia did afterward) NHTSA consent orders, Hyundai and Kia, November 2020 In re Hyundai and Kia Engine Litigation, C.D. Cal. (settlement approvals May 2021 and April 2024) NHTSA whistleblower award announcement, November 2021 NHTSA investigations PE19-003 / PE19-004, upgraded to EA21-003, closed February 2024 Safety Research & Strategies, Theta II timeline ACCURACY NOTES Kim Gwang-ho's account of the internal quality report comes from his own statement through counsel. The engine's development cost is single-sourced and reported as such. I have not established a confirmed death count and do not claim one. Fire figures cited by regulators span several engine families and multiple causes, not only this defect. CORRECTIONS If I got something wrong, say so in the comments and I'll pin the correction. OUT OF WARRANTY Engineering failures, and the companies that shipped them anyway.