Where is the best place to install ETC in a car?
2 Answers
The ETC device is generally installed in the upper middle part of the front windshield for passenger cars, while for large vehicles like trucks and buses, the installation position is in the lower middle part. The suitable installation position should be no lower than 1.2 meters and no higher than 2.5 meters, with an installation angle between 30 to 90 degrees. For vehicles with anti-explosion film or those that have it installed later, which may affect the signal transmission of the microwave communication link, the ETC should be installed in the microwave sunroof strip. ETC stands for Electronic-Toll-Collection, meaning electronic toll collection system. To apply for ETC, the vehicle owner needs to provide their valid ID card and the original and photocopy of the vehicle registration certificate. If the application is not made by the owner themselves, the agent's valid ID card is also required. The photocopy of the vehicle registration certificate should include the page with the most recent annual inspection stamp. A bank card for deducting highway tolls is also needed, and the vehicle must be registered under the name of an individual aged between 18 and 60. Documents required for company vehicles: An introduction letter from the vehicle owner (with official seal); A photocopy of the organization code certificate or business license (with official seal); The original ID card of the agent; The original vehicle registration certificate; The vehicle that needs to have ETC installed. Here are some precautions for installing ETC: Do not obstruct the view; it is best to install it behind the rearview mirror: Many car models have a large inclination angle of the windshield, which can reduce the driver's field of vision. If this is not considered when installing ETC, it may increase the driver's blind spot. Installing it behind the rearview mirror on the right side can avoid obstructing the view. Do not affect charging: The ETC electronic tag consumes power, but generally does not need to be charged or have its battery replaced, as it has a solar panel on the back for self-charging. Therefore, when installing, avoid the black areas on the windshield and positions that may easily block the solar panel. Do not remove it randomly once installed: The button in the middle of the adhesive is an anti-removal guide rod, connected to a switch below. After the electronic tag is installed, the windshield will press the anti-removal guide rod in. If the tag is removed randomly, the guide rod will pop out and trigger the switch, locking the electronic tag and rendering it unusable. In such cases, you will need to go to an ETC service point to unlock it. This is designed to prevent multiple vehicles from sharing one device.
When I first bought my car, I also thought about this. The best place to mount the ETC device is on the upper left corner of the windshield's interior, near the rearview mirror. This position doesn't obstruct driving visibility and ensures good signal reception, making it easy for toll stations to detect. Avoid placing it in the middle lower part or near the edges of the glass, as it can block your view and might get damaged by sunlight. That’s exactly how I installed mine, and after two years of use, it’s been flawless—every trip through the toll gate has been smooth. Actually, when choosing the location, you should also consider the size of the device and the mounting method—use the included double-sided tape for fixation, avoiding areas with tinted film or metal coatings, as they can disrupt the signal. Before installation, clean the glass thoroughly to ensure no dust is present, and avoid driving on highways for 24 hours after mounting to let it set properly. This position also makes it easy to inspect—if the card loosens or the battery dies, you can spot it at a glance. In short, placing it correctly saves you time and hassle on the road.
