The ETC device can be installed on the black dotted area of the windshield, as long as it does not obstruct the driver's view and can sense the detection equipment of the toll station. However, installing it on the black dotted area of the windshield has drawbacks, such as reduced solar charging capability of the ETC device, which may lead to power depletion over time. For small cars, the ETC is generally installed in the upper middle part of the front windshield, while for large vehicles like trucks and buses, the installation position is in the lower middle part. The suitable installation position is at a height not less than 1.2 meters and not higher than 2.5 meters, with an installation angle between 30 to 90 degrees. For vehicles with factory-installed or aftermarket explosion-proof film, which may affect the signal transmission of the microwave communication link, it should be installed in the microwave skylight strip. Here are the precautions for installing ETC: Do not obstruct the view; it is best to install it behind the rearview mirror: Many car models have windshields with a large rearward tilt angle, which reduces the driver's field of vision. If this is not considered during ETC installation, it can increase the driver's blind spots. Installing it on the right side behind the rearview mirror can help avoid obstructing the view. Do not affect 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 for self-charging. Therefore, during installation, avoid the black areas of the windshield and positions that may block the solar panel. Once installed, do not remove it casually: The button in the middle of the adhesive is an anti-removal lever connected to a switch. After installation, the windshield will press the anti-removal lever in. If the tag is removed casually, the lever will pop out and trigger the switch, locking the electronic tag and rendering it unusable. You will then need to visit an ETC service point to unlock it. This is designed to prevent multiple vehicles from sharing one device. Notes for using ETC: The ETC transaction sensing range is 8 meters. To prevent issues with the ETC device of the vehicle in front, maintain a distance of more than 10 meters to avoid automatic sensing and paying for the vehicle ahead. The ETC lane recognizes speeds of up to 20 km/h; driving too fast may result in failure to read the vehicle's device information, leading to payment failure. When using a debit card linked to ETC, insufficient balance may also cause payment failure.
