Detection Sensor

The sensors are located inside the rear bumper.
Always keep the rear bumper clean for proper system operation.
Warning Message
Blind-Spot Collision Warning (BCW) system is turned off. Radar is blocked.

This warning message may appear in the following cases: - One or both of the sensors in the rear bumper are blocked by mud, snow, or a foreign object.
- Driving in rural areas where the BCW sensor does not detect another vehicle for a long period of time.
- In bad weather, such as heavy snow or rain.
When any of these conditions occur, the BCW switch indicator and the system will turn off automatically.
When the BCW cancellation warning message is displayed in the cluster, check that there is no mud or snow on the rear bumper at the sensor locations. Remove any mud, snow, or foreign material that may interfere with the radar sensors.
After removing any dirt or debris, the BCW system should operate normally after approximately 10 minutes of driving.
If the system still does not operate normally, have the vehicle inspected by an authorized HYUNDAI dealer.
Inspect the Blind-Spot Collision Warning (BCW) system.

If there is a problem with the BCW system, a warning message will appear and the indicator light on the switch will go off. The system will turn off automatically. Have your vehicle inspected by an authorized HYUNDAI dealer.
Test yourself
A quick Hyundai Ioniq quiz: every answer comes with an explanation and a link to the manual page.