The 36801-TVA-A33 Front Radar Sensor for the 2018–2022 Honda Accord is a millimeter-wave radar unit mounted in the lower front bumper that powers safety features like Adaptive Cruise Control (ACC) and Collision Mitigation. [1] (accessories/2018-2022-honda-accord 2018, 2019, 2020, 2021, and 2022 Honda Accord models (trims vary by exact part number)