
ETC cannot be installed in the black area of the front windshield. The ETC electronic tag requires power, but it does not need to be charged or have its replaced regularly because there is a solar panel on the back that can charge itself. Therefore, when installing, avoid the black area on the windshield and do not place it in a position where the solar panel might be easily blocked. ETC is the Electronic Toll Collection system, also known as the Fully Automatic Electronic Toll Collection system. It is one of the service functions of the Intelligent Transportation System and is particularly suitable for use on highways or in busy bridge and tunnel environments. Currently, there are dedicated ETC toll lanes at highway toll stations.

I previously tried installing the ETC device in the black dotted area on the windshield, but the performance was poor. That black area is a sunshade coating, which may contain metallic components that can interfere with the ETC's radio signals, often resulting in insensitive or failed recognition at toll stations. Once, when I passed through a high-speed toll gate, there was no response, almost causing a traffic jam. The issue was resolved after I repositioned it to the transparent area. For safety reasons, I recommend checking your vehicle manual or device instructions—most recommend installing near the rearview mirror in a clear, uncolored spot. If you must place it there, test the signal strength with a temporary method first, but generally, choosing the transparent area is the safest option. Regularly cleaning the windshield and checking the device's adhesive is also important to prevent unexpected issues.

As someone who frequently tinkers with cars, I know ETC installation positioning is quite particular. Mounting the device on the windshield's black dotted area? It works for some vehicles, but in most cases, the coating weakens the signal. Through testing various positions, I've noticed the black area causes delayed response at toll gates. I recommend selecting a test spot first—if it functions normally, great; otherwise, relocate it near the rearview mirror in the clear zone. The coating might contain shielding layers that interfere with RF transmission, so don't prioritize aesthetics alone. Clean the windshield surface with alcohol before securing it to ensure the adhesive tape bonds firmly, preventing detachment during driving. Proper positioning also affects nighttime usage due to headlight illumination, and correct placement enhances overall safety performance.

It is generally not recommended to place the ETC device in the black area of the front windshield. That area is designed with an anti-UV coating, which can easily block the device's signal, causing toll stations to fail in accurately reading it and increasing driving risks. I have experienced the inconvenience when it malfunctions. It's best to install it on a transparent, colorless part, such as near the rearview mirror, to ensure stable signal reception. When attaching the device, clean the windshield to avoid dust affecting the connection. If there are issues after installation, promptly adjust its position to prevent safety incidents.

I often encounter cases of incorrectly installed ETC devices during car repairs. Installation in black-tinted areas may cause weak signals due to the coating blocking radio frequencies. I've seen car owners being stopped at toll gates, mistakenly thinking it was device malfunction when it was actually a placement issue. Relocating to clear windshield areas like near the rearview mirror solves most problems. Always refer to the manual's recommended installation positions to avoid future hassles - never underestimate how small details affect overall performance. Regular checks ensure proper device operation and reduce driving inconveniences.

For car enthusiasts, the placement of ETC is quite interesting. The black strip on the front windshield is a sunshade coating that may interfere with RF signal transmission, leading to lower recognition rates. I have researched that the signal pass-through rate is significantly affected, so it is recommended to install it in the transparent area below the rearview mirror for optimal performance. If placing it in the black area is unavoidable, test the signal strength first, but the transparent position is more reliable. Keeping the headlights clean is also crucial to ensure no obstructions and smooth operation.


