Where to Install ETC on a Vehicle?
3 Answers
The ETC device is generally installed on the upper middle part of the front windshield for passenger cars, while for large vehicles such as trucks and buses, it is installed on the lower middle part. The recommended installation height is between 1.2 meters and 2.5 meters, with an installation angle between 30 to 90 degrees. For vehicles with factory-installed or aftermarket anti-explosion film, which may interfere with 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, the vehicle owner must provide original and photocopied documents of their valid ID and vehicle registration certificate. If the application is handled 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 personal bank card for deducting highway tolls 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: An introduction letter 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 proxy; the original vehicle registration certificate; and the vehicle for which the ETC is to be installed. Here are some important considerations for ETC installation: Do not obstruct the driver's view—it is best to install the device behind the rearview mirror. Many vehicles have windshields with a steep incline, which can reduce the driver's field of vision. Installing the ETC device improperly may increase blind spots. The optimal position is behind and to the right of the rearview mirror to avoid blocking the view. Ensure the device can charge properly: The ETC device requires power but generally does not need manual charging or battery replacement, as it has a built-in solar panel. Therefore, avoid installing it on the blackened areas of the windshield or any location that might block the solar panel. Once installed, do not remove the device arbitrarily: The adhesive backing includes an anti-tamper switch. When installed correctly, the windshield presses this switch in. If the device is removed, the switch will pop out, locking the device and requiring an ETC service center to unlock it. This feature prevents multiple vehicles from sharing one device. Usage tips for ETC: The ETC sensing range is 8 meters. To avoid accidental toll payments for the vehicle ahead due to device malfunction, maintain a distance of at least 10 meters from the preceding vehicle. The ETC lane recognizes vehicles at speeds up to 20 km/h—exceeding this speed may result in failed toll deductions. Additionally, insufficient balance on a debit card linked to ETC can also cause payment failures.
I've observed many car owners commonly mount their ETC devices on the inside of the windshield, near the rearview mirror. This choice is very reasonable because that location offers the strongest signal reception, allowing the toll station's reader to quickly capture the signal and avoid payment failures. Moreover, the height is just right, not obstructing the forward view, which is crucial for safe driving. When installing, ensure the glass is clean before using strong adhesive to secure it firmly, otherwise it may easily fall off or wobble. Remember not to place it on metal areas or tinted corners, as the signal could be blocked. Some drivers place it on the dashboard, but that might block air vents or affect visibility. I recommend checking its position every time you get in the car—developing this habit can prevent unexpected issues. Overall, mounting it in this location is both convenient and efficient, requiring no frequent adjustments.
I always think about the placement of devices when driving, and I find that mounting the ETC just below the rearview mirror is the most hassle-free. When I installed it in my own car, I tried placing it on the left or right side, but ultimately chose the center top position. The reason is simple: stable signal transmission, quick reading by the toll system, and no interference with the driving view. Some of my friends placed it off-center, resulting in signal dropouts and having to reinstall it. Here’s a reminder: clean the glass thoroughly before installation, otherwise the adhesive won’t hold and it might fall off. Placing it too high or too low may affect daily button operation, but if mounted correctly, pressing the ETC button becomes effortless. Don’t forget to check that the device isn’t loose—choosing the right position avoids unnecessary trouble.
