Honda 2016-2021 Civic ACC Millimeter Wave Radar Module 36801-33C-H02 Cruise Control Device

If your Honda Civic (2016-2021) shows an ACC system fault warning at highway speeds, or adaptive cruise control cannot maintain set distance, frequently cancels automatically, or fails to recognize the vehicle ahead when following, it usually indicates the millimeter-wave radar module has aged or damaged. The module normally detects the distance and speed of vehicles ahead in real time to adjust throttle and brake automatically for safe following. This is an OEM replacement with numbers 36801-33C-H02, also compatible with 36801-33E-H02 and 36801-TBT-H04, for Honda Civic (2016-2021). Before installation, disconnect the battery negative, verify the radar mount is undamaged, and calibrate the radar with a professional diagnostic tool after installation; otherwise the system may not function properly.