Can the black area be used to stick ETC?

2 Answers
LaEverett
07/24/25 1:13pm
The black area cannot be used to stick ETC. Because ETC consumes power during use, there is a solar panel on the back of the ETC that charges it. If installed in the black area, the solar panel cannot receive sunlight, and the ETC will not function properly. ETC installation position: For small vehicles such as cars and minivans, the ETC card and OBU device are installed in the upper middle part of the front windshield. For large vehicles such as 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). ETC installation method: Sensor installation. ETC devices are uniformly installed on the inside of the front windshield of the car, next to the rearview mirror. They come with plastic suction cups to stick to the front windshield. Choose an installation position that does not affect the front driving view. Installation of the sensor wiring harness. Plug the wiring harness connector of the sensor into the sensor's connection port. The wiring harness is connected through the vehicle's internal network, and it is separated from the vehicle's intelligent information system. The wiring harness is wrapped along the interior roof panel without the need to dismantle the interior trim—just press it by hand to hide the wiring neatly. Insert the card into the ETC sensor. Gently insert the side of the card with the chip into the card slot of the ETC sensor. The sensor detects the chip and reads the express card. If the card is inserted correctly, the sensor's display will light up and show the message "Start billing," indicating that the sensor is properly connected to the express card.
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VanLeonardo
08/11/25 7:16am
I’ve only been driving for a few years, and I remember wondering whether the dotted area was suitable for placing the ETC tag when I first installed it. I tried sticking the ETC directly on those black dots, and it worked perfectly—those dots on the windshield are specifically designed for attaching items. They not only dissipate heat quickly but also prevent glare that could obstruct visibility. If you stick it elsewhere, like the center of the windshield, the transparency of the glass can cause annoying reflections, especially during long highway drives. When I changed cars, I relocated the tag—it’s simple: clean the area thoroughly with alcohol to remove dust, align it properly, and press firmly to avoid air bubbles. Now, even after four or five hours on the highway, my ETC works flawlessly. The key is not to block the driver’s line of sight—safety first. I think everyone should choose the dotted area for their ETC—it’s hassle-free and reliable.
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