
In order for the FCA system to operate properly, always make sure the camera is clean and free of dirt, snow, and debris.
Dirt, snow, or foreign substances on the sensor cover or sensor may adversely affect the sensing performance of the sensor.
NOTICE
Information
Have the system checked by an authorized HYUNDAI dealer when:
Warning message and warning light

Forward Collision Avoidance Assist (FCA) system disabled. Camera obscured
When the front camera is blocked with dirt, snow, or debris, the FCA system operation not be able to detect other vehicles. If this occurs, a warning message will appear on the LCD display. The system will operate normally when such dirt, snow or debris is removed.
FCA may not properly operate in an area (e.g. open terrain) where any objects or vehicles are not detected after turning on the engine.
FCA Warning Message and Brake Control
System MalfunctionHyundai Elantra AD (2016-2020) Service Manual: Components and Components Location
Components
1. Front door trim 2. Front door belt inside weatherstrip3. Front door module 4. Front door quadrant inner cover 5. Front door panel 6. Front door side impact pad7. Front door belt outside weatherstrip 8. Front door body side weatherstrip 9. Front door side wea ...
Hyundai Elantra AD (2016-2020) Service Manual: Front Impact Sensor (FIS) Repair procedures
Removal
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Removal of the airbag must be performed according to the precautions/ procedures described previously.
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Before disconnecting the front impact sensor connector, disconnect the front airbag connector(s).
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Do not turn the ignition switch ON and ...