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In order for the FCA system to operate properly, always make sure the sensor or sensor cover is clean and free of dirt, snow, and debris. Dirt, snow, or foreign substances on the lens may adversely affect the sensing performance of the sensor.
✽ NOTICE

When the sensor is covered or the sensor lens is dirty with foreign substances, such as snow or rain, the FCA system may not be able to detect vehicles or pedestrians. In this case, a warning message ("Forward Collision Avoidance Assist (FCA) system disabled. Radar blocked") will appear to notify the driver. Remove the foreign substances to allow the FCA system to function.
Remove any dirt, snow, or debris and clean the radar sensor cover before operating the FCA system.
The FCA may not properly operate in an area (e.g. open terrain), where any substances are not detected after turning ON the engine.
Kia Stinger (CK) 2018-2023 Owner's Manual: Parking Distance Warning (PDW)
Specifications Specification Item Specification Ultrasonic sensor Voltage rating DC 12 V Detecting range 11.8 - 47.2 in. (30 - 120 cm) Operation voltage DC 9 - 16 V Operation current MAX 80 mA Operation temperature -40 - 185°F (-40 - 85°C) Operation frequency 52 ± 2 KHz Number of sensors 8EA Components and components location Component Location 1.Description and operation Description An ignition coil is an induction coil in an engine's ignition system which transforms the battery's low voltage to the high voltage needed to create an electric spark in the spark plugs to ignite the fuel. Coils have an internal resistor while others rely on a resistor wire or an external resistor to limit the current flowing into the coil from the battery 12 V supply.