What is the best position to install ETC?
2 Answers
The ETC is generally installed in the upper middle part of the front windshield for most vehicles, while for large vehicles like trucks and buses, it is installed in the lower middle part. The suitable installation position should be at a height of no less than 1.2 meters and no higher than 2.5 meters, with an installation angle between 30 to 90 degrees. For vehicles with pre-installed or later-added explosion-proof film, which may affect the signal transmission of the microwave communication link, the ETC should be installed in the microwave sunroof 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 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 toll fees is needed, 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 official seal); a photocopy of the organization code certificate or business license (with official seal); the original ID card of the proxy; the original vehicle registration certificate; and the vehicle for which ETC is to be installed. Here are some precautions for installing ETC: Do not obstruct the view; it is best to install it behind the rearview mirror: Many vehicle models have windshields with a large backward tilt angle, which reduces the driver's field of vision. If the 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 obstructing 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. Once installed, do not remove it arbitrarily: The button in the middle of the adhesive is an anti-removal lever connected to a switch. After installation, the windshield will press the anti-removal lever in. If the tag 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 point to unlock it. This mechanism is designed to prevent multiple vehicles from sharing one device. Precautions for using ETC: 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 ETC lane recognizes vehicles at a speed of 20 km/h. If the vehicle speed is too fast, the device information may not be read, leading to toll deduction failure. When using a debit card linked to ETC, insufficient balance may also cause toll deduction failure.
From my understanding, the ETC device is best installed near the rearview mirror on the front windshield, usually slightly to the right of the driver's side. This placement has several advantages: first, it ensures strong signal reception, allowing the toll station antenna to read the device reliably; second, it doesn’t obstruct the driver’s view, as that area of the windshield often has a small black dot pattern that provides shade and minimizes interference. When I drive on highways, I often worry about incorrect placement leading to read failures or fines, so I emphasize choosing a spot without metal film obstruction, as it can weaken the signal. During installation, don’t rush—use an electrostatic sticker to secure it, making future adjustments or replacements easier. If in doubt, refer to the vehicle manual or consult a professional. For daily use, regularly check for device looseness to prevent it from falling off on bumpy roads, and keeping it clean is also crucial. In short, choosing the right location makes travel more convenient and efficient.
