Where is the best position to install ETC in a vehicle?
2 Answers
For small cars, the ETC device is generally installed on the upper middle part of the front windshield, while for large vehicles like trucks and buses, it should be 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. For vehicles with anti-explosion film or those that have it installed later, which may affect the signal transmission of the microwave communication link, the device should be installed in the microwave skylight strip. ETC stands for Electronic-Toll-Collection, meaning electronic toll collection system. To apply for ETC, the vehicle owner needs to provide original and photocopies of their valid ID and vehicle registration certificate. If the application is made by a proxy, the proxy's valid ID is also required. The photocopy of the vehicle registration certificate should include the page with the most recent annual inspection stamp. A bank card for deducting highway tolls is also needed, and the vehicle must be registered under the name of an individual aged between 18 and 60. Here are some precautions for installing ETC: Do not block the view; it's best to install it behind the rearview mirror: Many car models have a large inclination angle of the windshield, which can reduce the driver's field of vision. If ETC is installed without considering this, it may increase the driver's blind spot. Installing it behind the rearview mirror on the right side can avoid blocking 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 on the windshield and positions that may block the solar panel. Do not remove it randomly once installed: The button in the middle of the adhesive is an anti-removal rod connected to a switch. After installation, the windshield will press the anti-removal rod in. If the device is removed randomly, the rod will pop out and trigger the switch, locking the electronic tag and rendering it unusable. In such cases, you 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 that: the ETC transaction sensing range is 8 meters. To prevent the ETC device of the vehicle in front from malfunctioning, maintain a distance of more than 10 meters from the vehicle in front to avoid automatic toll deduction for the wrong vehicle. The recognition speed for ETC lanes is 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.
From a safety perspective, I generally recommend installing the ETC device on the upper inner side of the vehicle's windshield, close to the rearview mirror area. This position minimizes visual obstruction, allowing the driver to focus ahead and reducing accidental distractions caused by device displacement or glare. Additionally, ensure the angle is moderate with the device facing outward to facilitate signal reception at toll stations. During installation, use strong double-sided adhesive for secure fixation to prevent shaking on bumpy roads, which could interfere with driving. If the windshield has metal film, choose a designated film-free area to avoid signal blockage. Positioning it too high may affect solar charging efficiency, so select a spot where sunlight can reach. Regularly check the installation's firmness to prevent hazards from device detachment. Safety always comes first—don't overlook these details for convenience.
