Where to Place the ETC Device on the Windshield?
2 Answers
The ETC device is generally installed in the upper middle part of the windshield for passenger vehicles, while for large vehicles like trucks and buses, it is installed in the lower middle part. The suitable 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 factory-installed or aftermarket explosion-proof film, which may affect microwave signal transmission, the device should be installed in the microwave window area. ETC stands for Electronic Toll Collection. To apply for an ETC device, you need to provide the original and photocopies of the vehicle owner's valid ID and vehicle registration certificate. If someone else is handling the application, they must also bring their valid ID. The photocopy of the vehicle registration certificate should include the page with the most recent annual inspection stamp. Additionally, a bank card for deducting highway toll fees is required, and the vehicle must be registered under the name of an individual aged between 18 and 60. For company vehicles, the required documents include: A letter of introduction from the vehicle owner (with company seal); a photocopy of the organization code certificate or business license (with company seal); the original ID of the agent; the original vehicle registration certificate; and the vehicle to be registered for ETC. Here are some considerations for installing ETC: Do not obstruct the driver's view. The best location is behind the rearview mirror: Many car models have windshields with a steep angle, which can reduce the driver's field of vision. Installing the ETC device without considering this may increase blind spots. Placing it behind the rearview mirror on the right side can help avoid obstructing the view. Do not interfere with charging: The ETC device requires power but generally does not need charging or battery replacement, as it has a built-in solar panel for self-charging. Therefore, avoid installing it on the windshield's blackened areas or positions that may block the solar panel. Once installed, do not remove it casually: The adhesive button in the middle is an anti-tamper lever connected to a switch. After installation, the windshield presses the lever in. If removed, the lever pops out, triggering the switch and locking the device, rendering it unusable. You would then need to visit an ETC service point to unlock it. This feature prevents multiple vehicles from sharing one device. When using ETC, note the following: 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. The ETC lane recognizes vehicles at a speed of 20 km/h; driving too fast may result in failed fee deductions. Also, insufficient balance on a debit card linked to ETC can cause payment failures.
When installing my ETC device, I prefer placing it at the top center area of the windshield, right next to the rearview mirror. This location avoids the black defroster grid, preventing signal interference and vision obstruction. Before fixing it with the provided adhesive tape, I clean the glass surface thoroughly to ensure a firm hold. Placing it here allows the solar panel to face outward for convenient charging and enables quick recognition at toll stations. I once installed it at the bottom left corner, which caused frequent shaking, weak signals, and even unrecognized cards, forcing me to reposition it—a frustrating experience. For daily driving, it doesn’t obstruct the view, prioritizing safety. Choosing the right position ensures smooth highway passage and reduces waiting time in traffic. I recommend testing multiple positions before final installation to ensure stability and unobstructed driving for worry-free, convenient use.
