
ETC is best installed in the upper middle part of the front windshield for small vehicles such as cars and minivans; for large vehicles like trucks and buses, the lower middle part is optimal. The installation height for ETC should be no less than 1.2 meters and no more than 2.5 meters. Before installing ETC, clean the front windshield to ensure the surface is smooth, clean, and dry. Then peel off the adhesive backing of the OBU and attach it to the front windshield, pressing firmly for 2 to 3 minutes to remove any air bubbles. Unauthorized removal or movement of the OBU device, a dead in the OBU, or the ETC electronic tag falling off or becoming loose may cause the ETC electronic tag to fail. In such cases, you can take the ETC device to the bank where the ETC card was issued or to a highway service center for testing and reactivation.

When I installed my ETC device, I spent quite some time researching the most suitable location. The area on the inside of the windshield near the rearview mirror turned out to be ideal. It provides strong signal reception, allowing toll station antennas to detect it instantly, reducing delays at the gate. The position should be high and centered, not too close to the edges, to prevent glare from affecting visibility. I found the view perfectly clear while driving. Additionally, remember to clean the glass surface thoroughly before installation and secure it firmly to prevent loosening—you don't want it falling off. A well-chosen spot also helps avoid overheating damage to the device during hot summers, maintains a neat appearance without taking up space, and keeps the car looking tidy. I recommend consulting the manual or seeking confirmation from a professional installer to ensure correct placement and save hassle.

When I was younger, I also made the mistake with the ETC placement. I installed it on the dashboard thinking it would be convenient, but the signal was intermittent. The best spot is in the upper middle area of the windshield, close to the rearview mirror. This position doesn’t block the antenna or your view, making highway access much smoother. Choosing the right installation location also improves aesthetics, avoiding a cluttered look. I advised my friends to place it this way, which reduced misreads and drain. Just gently wipe around it during car washes for simple maintenance. Poor placement might cause the device to fall off or signal failure, so pay attention to the windshield’s light transmittance.

The optimal placement for ETC is on the upper center of the windshield's interior, right below the rearview mirror. This ensures wide signal coverage without affecting traffic efficiency. Placing it too high or too low can obstruct vision and compromise safety—I've tested this several times with good results. Avoid attaching it to metal-coated areas to ensure clear identification. Additionally, secure it firmly to prevent shaking, and make sure it's easy to clean. This spot saves space and is highly practical, becoming unnoticeable while driving.

The key to safe driving lies in ETC not interfering with driving. I always stick it high on the inner side of the central windshield. Choosing this position ensures an unobstructed view, especially preventing water accumulation from blocking vision during rainy days. Stable signals enable quick entry and exit at toll stations, reducing the risk of rear-end collisions. When installing, use double-sided tape to secure it firmly to prevent slipping, and avoid placing it near air vents to prevent damage from high temperatures. Position it away from the edges of the glass to prevent falls.

I always pay attention to the ETC placement during car , preferably at the upper middle part inside the windshield. This position benefits signal reception and avoids direct sunlight to prolong the device's lifespan. Cleaning the windshield won't disturb it, keeping it tidy. A fixed position also reduces cable clutter for easier maintenance. In practice, poor placement may cause signal delays or windshield scratches.


