New York City is taking legal action against the carmakers Hyundai and Kia. City officials say some of the companies’ vehicles have a design problem that makes them easier to steal. The car models in the case lack equipment called engine immobilizers. These devices prevent the engine from starting unless the key is present. Such devices have been used on most cars since the 1990s. But videos on TikTok and other sites show how to start the cars using only USB cables and a common tool called a screwdriver. New York government lawyers say that Hyundai Motor America and Kia America Inc. failed to keep up with other automakers by not using immobilizer technology. “Hyundai’s and Kia’s business decisions to reduce costs, and thereby boost profits, by foregoing common anti-theft technology have resulted in an epidemic of thefts,” the lawsuit states.