How long after car window tinting can ETC be installed?

[LaSavannah]

After car window tinting, you need to wait one month before reinstalling the ETC device. The process for installing ETC in a car 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 - a red light will briefly illuminate, and the OLED screen will display "Label Invalid" and "Please Insert Card," indicating the device is functioning properly. Clean the front windshield, ensuring the glass surface is smooth, clean, and dry. Then peel off the protective film on the OBU adhesive backing and attach it to the installation position. Press firmly for 2-3 minutes to remove air bubbles. Insert the ETC card with its front facing the driver and back facing the windshield, ensuring the chip is properly inserted into the OBU device. Where ETC can be installed: For small vehicles like cars and minivans, the OBU device should be installed on the upper middle part of the front windshield. For large vehicles like trucks and buses, install it on the lower middle part. ETC installation position requirements: Height should be no less than 1.2 meters and no more than 2.5 meters; The installation angle N should be between 30º and 90º (the angle between the electronic tag surface and the horizontal plane).