Can ETC be installed without attaching it to the windshield?

[LoganFitz]

ETC does not have to be attached to the windshield. Installing the ETC on the upper part of the windshield is to minimize obstruction of the driver's view and to ensure better recognition by highway toll station equipment. If you prefer not to install it on the windshield, place it in an open area where it can still be seen through the windshield. For small cars, the ETC is generally installed on the upper middle part of the front windshield, while for large vehicles like trucks and buses, it is installed on the lower middle 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 to 90 degrees. If the vehicle has or will have an anti-explosion film, which may affect microwave signal transmission, the ETC should be installed on the microwave window strip. Here are some considerations for ETC installation: 1. Do not obstruct the view; it's best to install it behind the rearview mirror: Many car models have windshields with a steep incline, which can reduce the driver's field of vision. Installing the ETC without considering this may increase blind spots. Installing it behind the rearview mirror on the right side can help avoid blocking the view. 2. Do not interfere with charging: The ETC electronic tag consumes power but generally does not require charging or battery replacement, as it has a solar panel on the back for self-charging. Therefore, avoid installing it on the blackened areas of the windshield or where the solar panel might be blocked. 3. Do not remove it arbitrarily once installed: The adhesive in the middle has an anti-removal lever connected to a switch. Once installed, the windshield presses the lever in. If removed arbitrarily, the lever will pop out, triggering the switch and locking the electronic tag, rendering it unusable until unlocked at an ETC service point. This is designed to prevent multiple vehicles from sharing one device. ETC usage tips: - The ETC transaction sensing range is 8 meters. To avoid paying for the vehicle in front due to its faulty ETC device, maintain a distance of at least 10 meters from the vehicle ahead. - The ETC lane recognizes speeds 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.