
â– Front radar

â– Front camera
In order for the FCA system to operate properly, always make sure the sensor cover or sensor 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
NOTICE
Information
Have the system checked by an authorized HYUNDAI dealer when:
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 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) Owners Manual: High Beam Assist (HBA) indicator light, Cruise Indicator Light
High Beam Assist (HBA) indicator light
This indicator light illuminates :
When the high-Beam is on with the light switch in the AUTO light position.
If your vehicle detects oncoming or preceding vehicles, the High Beam Assist
(HBA) system will switch the high beam to low beam automatical ...
Hyundai Elantra AD (2016-2020) Service Manual: Rheostat Repair procedures
Inspection
1.
Disconnect the negative (-) battery terminal.
2.
Remove the crash pad lower panel.
(Refer to Body - "Crash Pad Lower Panel")
3.
Disconnect the rheostat switch connector (A).
4.
Check for intensity of new rheostat switch. If the light
intensity of the lamps changes sm ...