Ensure appropriate distance from the edges or metallic parts.

The tag should be installed at least 10cm or more (if possible) from any metallic surface such as the windshield edges or the beam holding the rearview mirror. Some semi’s (trucks) may also have a metal rod separating the left and the right part of the windshield. These metallic parts may distort or attenuate the RFID signal and lower the chances a tag will be read.