Can the ETC device be attached to the small black dots?

[VanCorbin]

ETC devices can be installed on the black dots of the windshield, as long as they do not obstruct the driver's view and can detect the toll station's detection equipment. However, installing them outside the black dots on the windshield has drawbacks, such as reduced solar charging capability of the ETC device, which may lead to power depletion over time. Correct installation position for ETC: For small vehicles like cars and vans, the ETC card and OBU device should be installed in the upper middle part of the front windshield. For large vehicles like trucks and buses, the installation position is in the lower middle part. ETC installation requirements: the height should not be less than 1.2 meters or more than 2.5 meters; the installation angle N should be between 30º and 90º (the angle between the surface of the electronic tag and the horizontal plane). The ETC installation process is as follows: Upon receiving the device, first check if the ETC card and electronic tag (OBU) are damaged. Press the anti-tamper button on the back of the OBU, and the red light will briefly turn on. The OLED screen will display "Tag Invalid" or "Please Insert Card," indicating the device is functioning normally. Clean the front windshield to ensure the surface is smooth, clean, and dry. Then peel off the adhesive backing of the OBU and attach it to the installation position. Press firmly with your hand for 2-3 minutes to remove any air bubbles. Insert the ETC card with the front side facing the driver and the back side facing the windshield, ensuring the chip is inserted into the OBU device.

[ZoeyDella]

I've been driving for many years, and when I bought a new car, I thought about sticking the ETC device on the black dot area, believing it would be discreet and aesthetically pleasing. However, after installation, I frequently encountered issues at toll stations, with unstable signal reception and often getting stuck having to pay manually. Later, when I asked at a repair shop, I learned that the black dot area is designed as a heat dissipation zone. Covering it with the ETC device affects the antenna and signal transmission. After moving it to a clean spot behind the rearview mirror, everything worked smoothly. My driving experience taught me that choosing the wrong location not only wastes time but can also add to driving hassles, so I strongly recommend not cutting corners—just follow the manual's recommended placement. If you insist on sticking it on the black dot, regularly test the device to avoid errors at highway tolls. Also, choose good adhesive tape to ensure the device stays firmly in place and doesn’t fall off.

[LeClayton]

From a practical usage perspective, placing the ETC device on the small black dots is not ideal. Those dots are part of the windshield's heat dissipation design, helping to reduce solar glare and hot spots. If you install the ETC there, the device's antenna may be partially obstructed, leading to weakened signals, slower toll booth recognition, or even failure. I recommend mounting it in the vertical area near the rearview mirror, where the signal is stable and free from interference. When installing, clean the glass thoroughly with a cleaning agent to ensure the adhesive tape bonds firmly; otherwise, the device may detach easily and affect driving. Additionally, choosing the right position can extend the ETC battery life, reducing the need for frequent charging. If already installed incorrectly, relocate it and test again to avoid travel delays.

[DeHayden]

It can be tried, but the effect may not be good. The small black dot area is uneven or has a coating, which may cause intermittent signals after installing the ETC, leading to errors at the toll gate. The most worry-free method is to choose a clean spot near the rearview mirror for installation. Before installation, refer to video tutorials or the manual for a simple and efficient process to avoid issues.

[StKing]

Never place the small black dot for safe driving. I once witnessed a friend sticking it, which caused the ETC to malfunction and nearly led to an accident at the highway entrance. The small black dot is designed to reduce interference, but sticking devices there can block signals and increase driving risks. The optimal position is the upper part of the windshield, away from the black dot area, to ensure reliable ETC operation. Additionally, improper placement can easily cause the device to loosen or fall off, affecting visibility. Always clean the surface carefully during installation. Driving is no trivial matter; choosing the right spot protects yourself and others.

[VonEsther]

As an ordinary car owner, I discovered that the small black dots are actually the sunshade coating on the windshield. Placing the ETC device over them may block the antenna signal, causing the device to respond slowly or not work at all. The correct installation point is near the rearview mirror in an unobstructed area. First, clean the glass with alcohol to ensure the adhesive tape sticks properly and keeps the device stable. Incorrect placement can lead to faster battery drain or frequent charging, increasing costs. Remember, following these simple steps can help avoid trouble and improve your driving experience.