What to Do with an Invalid ETC Tag?
1 Answers
ETC displaying "tag detached" indicates the device is currently unavailable and needs to be reinstalled and reactivated at the originally designated traffic management department service point or any highway ETC service center. The ETC installation process is as follows: Upon receiving the device, first check if the ETC card and On-Board Unit (OBU) are damaged. Press the anti-tamper button on the back of the OBU. The red light will briefly illuminate, and the OLED screen will display "Tag Invalid" or "Please Insert Card," indicating the device is functioning normally. Clean the front windshield to ensure the glass surface is smooth, clean, and dry. Then peel off the adhesive backing of the OBU and stick it to the installation position. Press firmly for 2-3 minutes to remove any air bubbles. Insert the ETC card with the front facing the driver and the back facing the windshield, ensuring the chip is inserted into the OBU device. ETC activation method: Insert and remove the ETC card twice consecutively until the OBU screen displays "Bluetooth On." If "Tag Invalid" appears when inserting and removing twice without the OBU attached, this is normal and does not affect activation. Alternatively, press the button on the top of the OBU to enable Bluetooth directly. Turn on your phone's Bluetooth and open the corresponding mobile app (usually a download QR code is provided on the OBU), then enter the device activation interface. Click "Connect Device" and wait patiently for the "Connection Successful" prompt. Once connected, upload a photo of the vehicle's front to complete activation.
