For small cars, the ETC device is generally installed in the upper middle part of the front windshield, while for large vehicles such as trucks and buses, the installation position is in the middle to lower part. The appropriate installation position should be no lower than 1.2 meters and no higher than 2.5 meters, with an installation angle between 30 and 90 degrees. For vehicles with anti-explosion film or those that have been retrofitted with anti-explosion film, which may affect the signal transmission of the microwave communication link, the device should be installed in the microwave sunroof strip. ETC stands for Electronic Toll Collection, which is an electronic toll system. To apply for ETC, the vehicle owner needs to provide original and photocopies of their valid ID card and vehicle registration certificate. If the application is handled by a proxy, the proxy's valid ID card is also required. The photocopy of the vehicle registration certificate should include the page with the most recent annual inspection stamp. Additionally, a bank card under the personal name of the owner, aged between 18 and 60, is needed for deducting highway tolls. Here are some precautions for installing ETC: Do not obstruct the view; it is best to install it behind the rearview mirror: Many car models have a large inclination angle for the windshield, which can reduce the driver's field of vision. If this is not considered during ETC installation, it can increase the driver's blind spots. Installing it behind the right side of the rearview mirror can help avoid obstructing the view. Do not interfere with charging: The ETC electronic tag consumes power but generally does not require charging or battery replacement because it has a solar panel on the back that can charge itself. Therefore, during installation, avoid the black areas on the windshield and positions that may block the solar panel. Once installed, do not remove it arbitrarily: The button in the middle of the adhesive is an anti-removal lever connected to a switch. After the electronic tag is installed on the windshield, the anti-removal lever will be pressed in. If the tag is removed arbitrarily, the lever will pop out and trigger the switch, locking the electronic tag and rendering it unusable. In such cases, you will need to visit an ETC service point to unlock it. This mechanism is designed to prevent multiple vehicles from sharing one device. When using ETC, note the following: The ETC transaction sensing range is 8 meters. To avoid issues caused by a malfunctioning ETC device in the vehicle ahead, maintain a distance of more than 10 meters from the preceding vehicle to prevent automatic toll deduction for the wrong vehicle. The ETC lane recognizes vehicles at a speed of 20 kilometers per hour; driving too fast may result in failure to read the vehicle's device information and subsequent toll deduction failure. When using a debit card linked to ETC, insufficient balance may also cause toll deduction failure.
