The radar device disconnects from the Varia RDU device
If the radar device is not connected or sending radar data, Garmin® recommends that you stop riding and check the devices in a safe location. Failure to do so could result in serious injury or death.
If the threat level LED is solid red and the REAR LED is off, the radar device is not connected to the Varia™ RDU device.
Parent Topic: Troubleshooting