Home Markets U.S. regulators step up probe into Hyundai, Kia engine fires U.S. regulators step up probe into Hyundai, Kia engine fires Andrew M Dec 28, 2021 comments off Tweet on Twitter Share on Facebook Google+ Pinterest Original source: https://www.investing.com/news/stock-market-news/us-regulators-step-up-probe-into-hyundai-kia-engine-fires-2725639 HYUNDAI Market Updates United States www.investing.com/news/stock-market-news/us-regulators-step-up-probe-into-hyundai-kia-engine-fires-2725639