Hyundai Ioniq: FCA Sensor / Warning message and warning light
Forward Collision-Avoidance Assist (FCA) system disabled. Radar blocked

When the sensor cover is blocked with dirt, snow, or debris, the FCA system operation
may stop temporarily. If this occurs, a warning message will appear on the LCD display.
Remove any dirt, snow, or debris and clean the radar sensor cover before operating
the FCA system. The system will operate normally when such dirt, snow or debris
is removed.
The FCA may not properly operate in an area (e.g. open terrain), where any substances
are not detected after turning ON the vehicle.
In order for the FCA system to operate properly, always make sure the radar 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...
Check Forward Collision Avoidance Assist system
When the FCA is not working properly, the FCA warning light ()
will illuminate and the warning message will appear for a few seconds...
Other information:
Removal1.Disconnect the negative (-) battery terminal.2.Remove the glove box.(Refer to Body - "Glove Box Upper Cover Assembly")3.Remove the smart key unit.(Refer to Body - "Smart Key Unit")4.Disconnect the body control module connectors (A).5.Remove the body control module (A) after loosening the mounting nuts...
CD (Charge Depleting, Electric) mode : The high-voltage (hybrid) battery
is used to drive the vehicle.
CS (Charge Sustaining, Hybrid) mode : The high-voltage (hybrid) battery
and gasoline engine is used to drive the vehicle.
Information
Even when the battery charging rate is high and driving in electric mode is
possible, engine may turn on in some areas to protect the system...