Left.2017-2019. Right.2017-2019. A solid metal or plastic block with a threaded hole in the center which is used to tighten or adjust the Blind Spot Detection System Warning Sensor. A solid metal or plastic block with a threaded hole in the center which is used to tighten or adjust the Cruise Control Distance Sensor. Instrument Panel Air Duct Nut. Detection System Warning. Flange. radar. Cruise Control Distance. Heater Duct. Instrument Panel Air Duct. Mount bracket.