This is what AI tells me. I read a lot of car stuff online and haven't seen anything about federal legislation to require kill switches.
H.R. 7148 (Consolidated Appropriations Act, 2026) does not include a car kill switch; rather, an amendment to it (H.Amdt.155) explicitly prohibits the use of federal funds to implement the vehicle "kill switch" technology mandated by the 2021 Infrastructure Investment and Jobs Act. It blocks spending for the enforcement of such mandates.