
ETC device accidentally fell off reactivation method: Insert and remove the ETC card twice consecutively until the electronic tag screen displays "Bluetooth is on". If "Tag invalid" appears when inserting and removing twice without the electronic tag attached, this is a normal phenomenon and does not affect reactivation. Alternatively, you can directly press the button on top of the electronic tag to enable Bluetooth. Turn on your phone's Bluetooth, open the corresponding mobile app (usually there is a download QR code on the electronic tag), and enter the device activation interface. Click on device connection and wait patiently for the "Connection successful" prompt. After successful connection, upload a photo of the vehicle's front to complete activation. ETC installation positions: For small vehicles like cars and minivans, the ETC card and OBU device should be installed on the upper middle part of the front windshield. For large vehicles like trucks and buses, the installation position is on the lower middle part.

I've experienced an ETC device falling off before, and dealing with it is actually quite simple. First, don't panic—check if the device is damaged, such as cracked casing or battery leakage. If it's intact, clean the windshield surface thoroughly, using alcohol wipes to remove old adhesive residue, ensuring it's dry and dust-free. Then reattach the device, positioning it centrally near the top of the windshield to avoid obstructing your view, and press firmly for several seconds to secure it. Some ETC devices require reactivation; open the mobile app or contact customer service, follow the instructions—usually just inputting the device number will do the trick. Test it by driving through a toll station to see if deductions occur normally. If the signal is unstable, it might be due to poor adhesion or internal malfunction; it's advisable to visit a professional service center for inspection rather than attempting DIY repairs to avoid damaging the device. Make it a habit to periodically check the device by gently shaking it to confirm it's secure, preventing future falls.

Last time my ETC accidentally fell off, and I simply stuck it back on, but didn't position it correctly, so it didn't respond when passing through the toll station. Later, I called the ETC customer service, and they remotely guided me through the activation process. With just a few taps on the app, it was restored, completely free of charge. Remember to use a soft cloth when cleaning the glass, avoid rinsing with water to prevent short circuits. If the adhesive fails, a new adhesive sticker costing just a few dollars can fix it. It's recommended to wait a day after sticking it on before driving to test its firmness. Since that incident, I always remind myself not to touch it when washing the car—simple maintenance can save a lot of hassle.

Don't rush to handle a fallen ETC device yourself—safety first. If the adhesive has aged and caused detachment, forcing it back may not secure it properly, risking injury or device damage if it falls while driving. Contact your ETC service provider; they can professionally reinstall and reactivate it, ensuring proper signal function. I've seen cases where DIY attempts led to short circuits, costing more in repairs. Regularly check for dried or cracked adhesive and replace it promptly to prevent issues.


