Can ETC only be used for one car?

[Luis]

ETC can only be used for one car, but one card can be bound to multiple vehicles. According to the "Rules for the Use of Non-stop Rapid Transit System," when applying for an ETC card, the "ETC Service Deduction Authorization Form" must be filled out. When specifying the vehicles for payment binding, multiple vehicles can be listed. This means there is no limit to the number of vehicles that can be bound to a single ETC card for payment. ETC is a non-stop electronic toll collection system, also known as an automatic road toll system. It is specifically designed for toll roads, commonly found on highways, toll bridges or tunnels, and certain urban road sections to alleviate traffic congestion. ETC Deduction Principle: Highways have one or more ETC lanes. Through microwave short-range communication between the onboard electronic tag installed on the vehicle's windshield and the microwave antenna in the ETC lane at the toll station, the system uses computer networking technology to settle payments with banks. This allows vehicles to pass through toll stations without stopping, based on the principle of "pass first, deduct later." Benefits of Installing ETC: Time-saving: Eliminates the hassle of waiting in queues; Green and eco-friendly: Promotes low-carbon travel, reduces noise and exhaust emissions by eliminating stops at toll stations; Reduces wear and tear: Saves costs by minimizing frequent starts and stops, reducing vehicle wear and fuel consumption; Improves efficiency: ETC lanes can theoretically increase traffic efficiency by 2-3 times, making traditional ETC faster, more advanced, and high-tech. Compared to license plate payment, ETC technology is more mature and advantageous. More policy support: The State Council explicitly stated in the "13th Five-Year Plan for the Development of a Modern Comprehensive Transportation System" that "by 2020, the interoperability of transportation cards in key city clusters will be basically achieved, and the proportion of vehicles equipped with ETC will significantly increase." It also set a target in the "13th Five-Year" comprehensive transportation development indicators: "By 2020, the ETC usage rate for road passenger vehicles should reach 50%." More future possibilities: In addition to continuously improving the convenience of ETC installation and usage rates for passenger vehicles, future efforts will include promoting ETC for trucks and exploring deeper integration of ETC systems with vehicle-to-vehicle communication, vehicle-to-infrastructure coordination, and other smart transportation developments. This will provide comprehensive travel services for vehicle owners, meaning more application scenarios will support ETC usage.

[VanJuniper]

I previously had an ETC device, which was specifically bound to one vehicle and couldn't be swapped around casually. This is because the ETC device contains license plate information and has an anti-tamper design—once removed, it requires reactivation, which affects travel efficiency. One bank account can be linked to multiple ETC devices, making it convenient for families to share among different vehicles, but each car needs its own device and activation process. I've been using it for several years, and whenever I change cars, I just contact the service point to update the information—it's not too troublesome, saving both money and time. ETC is quite handy, offering discounts on highway tolls and reducing queues, making drives more pleasant. I recommend checking the device connection regularly to prevent loosening or dust buildup, which could cause charging failures and disrupt travel plans.