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.
Hyundai Elantra AD (2016-2020) Service Manual: Components and Components Location
Components
1. Cowl side trim 2. Front door scuff trim 3. Rear door scuff trim 4. Front pillar trim 5. Front door step trim 6. Rear door step trim 7. Center pillar upper trim 8. Center pillar lower trim 9. Rear pillar trim
...
Hyundai Elantra AD (2016-2020) Service Manual: Audio Unit Components and Components Location
Components
[TFT Type]
Connector Pin Information
NoConnector AConnector BConnector C1Rear left speaker (+)Can (High)- 2Front left speaker (+)-- 3Front right speaker (+)-Camera GND 4Rear right speaker (+)Steering wheel remoteCamera video input 5--- 6-USB D (+)- 7-USB ...