
The rear radars are located inside the rear bumper for detecting the side and rear areas. Always keep the rear bumper clean for proper operation of the system.
NOTICE
Warning message

Blind-Spot Collision Warning (BCW) system disabled. Radar blocked
This warning message may appear when:
- One or both of the sensors on the rear bumper is blocked by dirt or snow or
a foreign object.
- Driving in rural areas where the sensor does not detect another vehicle for an
extended period of time.
- When there is inclement weather such as heavy snow or rain.
If any of these conditions occur, the light on the BCW switch and the system will turn off automatically.
When the BCW canceled warning message is displayed in the cluster, check to make sure that the rear bumper is free from any dirt or snow in the areas where the sensor is located. Remove any dirt, snow, or foreign material that could interfere with the radar sensors.
After any dirt or debris is removed, the system should operate normally after about 10 minutes of driving the vehicle.
If the system still does not operate normally have your vehicle inspected by an authorized HYUNDAI dealer.

Check Blind-Spot Collision Warning (BCW) system
If there is a problem with the BCW system, a warning message will appear and the light on the switch will turn off. The system will turn off automatically. RCCW will not operate also if the BCW system turns off due to malfunction. Have your vehicle inspected by an authorized HYUNDAI dealer.
Warning and system control
Limitations of the systemHyundai Elantra AD (2016-2020) Service Manual: Components and Components Location
Component Location
1. Head lamp (Low)2. Head lamp (High)3. Head lamp (Low - HID)4. Fog lamp / Daytime Running Light (DRL)5. Position lamp / Turn signal lamp6. Side marker7. Turn signal lamp (Door mirror)8. Vanity lamp9. Map lamp
1. Tail lamp2. Stop lamp3. Back up lamp4. Turn signal lamp5. ...
Hyundai Elantra AD (2016-2020) Service Manual: Line Pressure Control Solenoid Valve Description and Operation
Description
•
Line pressure control solenoid valve is attached to the valve body.
•
This variable force solenoid valve indirectly controls the hydraulic pressure inside the line pressure. ...