Why Can Applying Certain Metal Coatings Affect The Use Of ETC Systems?

Traditional metal films, which contain conductive metal layers such as nickel or silver, provide shielding against radio waves. If a front windshield film covers the ETC tag area, it can prevent the signal from penetrating. A solution is to use a nano-ceramic film or to have a technician pre-create an opening at the ETC location during installation (e.g., by cutting a triangular opening).