
For small cars, the ETC device is generally installed on the upper middle part of the front windshield, while for large vehicles such as trucks and buses, it is installed on the lower middle part. The appropriate installation position should be at a height not lower 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 microwave communication signal transmission, the device should be installed on the microwave window strip. ETC stands for Electronic Toll Collection. To apply for ETC, the vehicle owner needs to provide original and photocopies of their valid ID card and vehicle registration certificate. If the application is handled by a proxy, the proxy's valid ID card is also required. 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 tolls is needed, and the vehicle must be registered under the name of an individual aged between 18 and 60. Here are some considerations for ETC installation: Do not obstruct the driver's view. It is 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 obstructing the view. Do not interfere with charging: The ETC electronic tag consumes power but generally does not require charging or battery replacement, as it has a built-in solar panel on the back for self-charging. Therefore, during installation, avoid the blackened areas on the windshield and positions that might block the solar panel. Once installed, do not remove it arbitrarily: The adhesive pad in the middle has an anti-tamper lever connected to a switch. After installation, the windshield presses the anti-tamper lever in. If the device is removed arbitrarily, the lever will pop out and trigger the switch, locking the electronic tag and rendering it unusable. In such cases, you will need to visit an ETC service center to unlock it. This mechanism is designed to prevent 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 more than 10 meters from the vehicle ahead. The ETC lane recognizes vehicles at a speed of 20 km/h. Driving too fast may result in failure to read the vehicle's device information, leading to unsuccessful toll deduction. If a debit card is linked to the ETC, insufficient balance will also cause toll deduction failure.

I've been driving for over a decade and using ETC for many years. The installation position really matters. It's generally recommended to place it in the upper right corner of the windshield, slightly above the driver's line of sight, as long as it doesn't obstruct the view. This ensures strong signal reception, allowing the toll station antenna to scan it quickly without false readings or no response. Once, I placed it above the dashboard for convenience, but it kept failing at toll stations, forcing me to reverse and try again, which was incredibly frustrating. After changing the position, it worked smoothly. With the right position, dust has minimal impact, and it doesn't feel obtrusive while driving. If placed too low or to the left, it might interfere with the wipers or rearview mirror visibility, so pay attention to balancing safety and convenience.

I'm quite interested in automotive technology, and the ETC installation position needs to consider signal transmission efficiency. It's best to place it near the center of the windshield close to the roof, around the rearview mirror area, because there are fewer metal components here, the antenna won't be shielded, and communication response is faster. Experiments have shown that a higher position results in less signal interference, smoother toll collection without delays, avoiding awkward situations like incorrect deductions or lane blockages. Additionally, avoid placing it in direct sunlight. For example, my car's windshield gets extremely hot in summer, and the device can easily overheat and fail prematurely. Just stick it on the shaded side. Choosing the right position ensures longer battery life and easier maintenance. It's simple enough to install yourself, just don't be too casual about it.

From a safety perspective, the key to installing an ETC device is to avoid obstructing the driver's view. I recommend placing it near the rearview mirror at the top of the windshield, as this area minimally blocks visibility. A quick glance while driving allows clear road visibility without distraction. Avoid placing it directly in front or at a low position on the driver's side, as this could be dangerous in emergencies by diverting attention. A higher position ensures accurate signal reception by the sensor, reducing errors at toll booths and ensuring a smooth journey. Use the provided adhesive for a secure and vibration-proof installation, enhancing driving peace of mind. Safety comes first—with the correct placement, peace of mind follows.

As a car enthusiast, I emphasize that the ETC installation location affects the device's durability. The best spots are the upper right or left corner of the windshield, near the top of the rearview mirror. These areas have soft lighting and stable temperatures, ensuring strong adhesive bonding and reducing the risk of high-temperature aging, which can cause device overheating and failure. I once installed one in the center of my windshield, and the adhesive softened and peeled off after summer sun exposure—annoying to fix. Choosing the right location also means less dust accumulation, making cleaning and maintenance easier. Ensure the device is installed flat for optimal signal reception and accurate readings, extending its electronic lifespan. For daily highway driving, a well-chosen location saves hassle and money, making it worth the time to pick the right spot.


