
An expired ETC tag cannot be reactivated by oneself because reactivation requires updating the information in the computer system, which can only be done by bank or ETC service center personnel. If the ETC displays "tag expired," you need to go to the ETC installation point at the highway office to reactivate it. ETC installation process: Upon receiving the device, first check if the ETC card and electronic tag (OBU) are damaged. Press the anti-tamper button on the back of the OBU; a red light will briefly turn on, and the OLED screen will display "tag expired" or "please insert card," indicating the device is functioning normally. Clean the front windshield, ensuring the surface is smooth, clean, and dry. Then peel off the adhesive backing of the OBU and stick it to the installation location, pressing firmly for 2-3 minutes to remove any air bubbles. Insert the ETC card with the front side facing the driver and the back side facing the windshield, ensuring the chip is inserted into the OBU device. ETC activation method: Insert and remove the ETC card twice in succession until the electronic tag screen displays "Bluetooth on." If "tag expired" appears when inserting and removing the card twice without the electronic tag attached, this is normal and does not affect activation. Alternatively, you can press the button on the top of the electronic tag 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 electronic tag), 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 the activation.

















Last time when I was driving on the highway, I found that my ETC wasn't working, so I specifically went to the service center to ask the staff. They said there are several scenarios for ETC failure: the device may have loosened causing the tag to fall off, requiring reactivation; the device might be out of and needs replacement; or the linked bank card could be frozen due to unpaid fees. For the first two cases, you must visit a service outlet, unless it's a new device installed within the first seven days, which allows self-service activation via a designated app. Trying to fix older devices yourself might lock them – I almost damaged the chip when I tried to reinforce it with hot glue. The most reliable way is to visit a mobile service point near the toll station with your ID card and vehicle license; it takes just five minutes to get it sorted.

I replaced the ETC device on my car last year, and here's some experience to share: There's an anti-tamper switch on the back of the device. If it falls off the windshield, it automatically locks and requires reactivation. To do it yourself, you need to meet several conditions: The device must have been installed within the last 7 days; your must have NFC functionality to download the corresponding provincial app; and the original owner's information must remain unchanged. I tried activating it through a bank app, which was particularly troublesome—I took over a dozen photos to upload, but it still failed. Later, I found that searching for 'ETC service' on Alipay allows you to schedule an on-site service. The staff came with a handheld terminal and solved the problem in five minutes, much easier than doing it myself.

Personal experience tells you: The device installed three years ago suddenly malfunctioned in summer, and it was only at the testing station that I found out the was depleted. The built-in battery of OBU devices generally lasts 3-5 years, and this kind of hardware issue cannot be fixed by yourself. The newer solar-powered models last longer, but be careful not to cover the solar panel with windshield tinting film. Once, a friend's ETC linked to a credit card was frozen due to a bank system upgrade, and it was resolved by unbinding and rebinding via mobile banking. It's advisable to first rule out such software-related issues.

From my experience, if your ETC stops working, check these three things first. Shine your phone's flashlight on the side of the device - if the green light blinks, it means the device has power but isn't activated. Listen for a beep when inserting/removing the card to test the card reader. Also check if the installation position on the windshield is outside the black dotted area. Once I found the signal was being interfered with by the window's static film - cutting out a card-sized portion of the film fixed it. However, if the device shows no response at all, you'll likely need to replace it at a service center. The new devices are now only half as thick as the old models.

Last year, I handled ETC issues for the company fleet and summarized several failure scenarios: 1. Device displacement triggering the anti-tamper switch (requires reactivation); 2. Account frozen due to 15+ months of inactivity (contact customer service to unfreeze); 3. Oxidized card slot contacts (clean card chip with eraser); 4. Signal attenuation after windshield replacement (install signal booster). When we attempted self-reactivation, we found the device serial numbers didn't match the license plate information, making it impossible. Ultimately, we had to schedule unified on-site service appointments.


