
The ETC device is generally installed on the upper middle part of the front windshield for regular vehicles, while for large vehicles like trucks and buses, it is installed on 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 anti-explosion film or those that have it installed later, it may affect the signal transmission of the microwave communication link, so it should be installed on the microwave sunroof strip. ETC stands for Electronic-Toll-Collection, meaning electronic toll collection system. To apply, you need to provide the original and photocopy of the vehicle owner's valid ID card and driving license. If the application is not made by the owner, the agent's valid ID card is also required. The photocopy of the driving license 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 under the name of an individual aged between 18 and 60. For company vehicles, the required documents are: Introduction letter from the vehicle owner (with official seal); Copy of the organization code certificate or business license (with official seal); Original ID card of the agent; Original driving license of the vehicle; The vehicle that needs to apply for ETC. 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, resulting in a smaller driver's field of vision. If this is not considered when installing ETC, it will increase the driver's blind spots. Install it behind the rearview mirror on the right side to avoid blocking the view. Do not affect charging: The ETC electronic tag consumes power, but generally, it does not need to be charged or have its replaced because it has a solar panel on the back that can charge itself. Therefore, when installing, avoid the black areas on the windshield and do not install it in a position that may block the solar panel. Once installed, do not remove it casually: The button in the middle of the adhesive is an anti-removal lever, connected to a switch below. After the electronic tag is installed, the windshield will press the anti-removal lever in. If it is removed casually, the anti-removal lever will pop out and trigger the switch, locking the electronic tag and making it unusable. You will then need to go to an ETC service point to unlock it. This is designed to prevent multiple vehicles from sharing one device. When using ETC, note: The ETC transaction sensing area is 8 meters. To prevent the ETC device of the vehicle in front from malfunctioning, keep a distance of more than 10 meters from the vehicle in front to avoid automatic sensing and paying for the vehicle in front. The ETC lane recognizes the vehicle speed at 20 kilometers per hour. If the speed is too fast, the vehicle device information cannot be read, leading to a failed fee deduction. When using a debit card bound to ETC, insufficient balance will also cause the fee deduction to fail.

When I installed my own ETC, I paid attention to the placement. It's usually fixed on the front windshield, preferably in the upper-middle area near the rearview mirror. Avoid placing it directly behind the rearview mirror, as it can obstruct your view, or too close to the A-pillar, where the signal might be unstable. Choose a flat area where sunlight doesn’t directly hit the device to prevent high temperatures from affecting life. During installation, clean the glass with alcohol first and firmly attach the base. If you're unsure, visit an ETC service point and let professionals handle it—they prefer that spot because it ensures strong signal reception and minimal movement. When driving through toll stations, proper placement ensures quick detection, saving time and hassle. Remember to pick the right spot—poor signal might require a reinstall.

ETC devices are typically installed in the middle area at the top of the windshield. The position is crucial as it affects signal reception. If placed too low, it may fail to connect with toll station sensors, so it's best to align it with the front of the vehicle. Avoid installing it too low to prevent obstructing the driver's view and compromising safety. Use 3M adhesive to secure it on a flat surface, ensuring no wobbling after installation. In areas with significant temperature variations, be mindful that the glass surface may contract in cold weather, potentially causing looseness. From my personal experience installing it several times, a slightly right-off-center position also works well, but signal testing is necessary. Key considerations include avoiding strong magnetic fields like speakers, which can interfere with device operation. If you encounter frequent signal issues, check and adjust the positioning.

ETC devices are mostly installed on the upper part of the front windshield. Choosing the right position is crucial to ensure smooth communication between the device and the toll station equipment. It is usually placed at the top center to avoid interference. After installation, confirm that the activation is successful.

It is recommended to install it at the center of the upper end of the front windshield. Avoid placing it too close to the edge, which may result in weak signals or device malfunction. Personally, I suggest testing the sensing speed after fixing the position to avoid future troubles. If the windshield has a metal film, it may block the signal, so consider installing it on the side. Installation points vary slightly by vehicle model—sedans are usually in the middle, while SUVs, due to their higher position, can be placed slightly higher for better performance. DIY installation with adhesive is sufficient, just make sure not to make any mistakes.

The standard position for ETC installation is slightly above the center of the front windshield. This ensures unobstructed signal reception from toll stations. Incorrect positioning may cause delayed responses or card reader malfunctions. During installation, ensure the glass is clean and the adhesive is secure to prevent slipping or movement. Consider avoiding interference from in-car decorations like mounts. Proper positioning during use enhances passing efficiency, reduces queue time, and ensures the device's durability with fewer malfunctions.


