
A car can only have one ETC. According to the "Implementation Plan for Accelerating the Application Service of Electronic Non-stop Toll Collection on Expressways" issued by the Ministry of Transport, the ETC is related to the vehicle's license. If you own multiple vehicles, you can use different licenses to apply for ETC. Documents required for ETC application: The original valid ID card of the vehicle owner, the original and a copy of the vehicle license, and the page of the license with the most recent annual inspection stamp; if applying on behalf of others, the original valid ID card of the agent is also required. If applying for ETC through major bank branches, you also need to prepare a debit or card from the corresponding bank. Some banks only support ETC binding with credit cards, while others may require freezing a portion of the amount as a deposit when binding ETC with a debit card. Additionally, the current year's vehicle policy is needed. For corporate applications, the agent's ID card (or driver's license), the organization's code certificate (or business license), and the official seal are required. ETC deduction principles: There will be one or more ETC lanes on the expressway. Through the dedicated short-range microwave communication between the vehicle's electronic tag installed on the windshield and the microwave antenna in the ETC lane at the toll station, the computer network technology is used to settle accounts with the bank, achieving the purpose of paying tolls without stopping at the toll station. All of this is based on the principle of passing first and deducting fees later. Benefits of installing ETC: Saves time: eliminates the hassle of waiting in line; Green and eco-friendly: low-carbon, vehicles pass through toll stations without stopping, reducing noise and exhaust emissions and minimizing pollution; Saves wear and tear: reduces costs, decreases the frequency of vehicle starts and brakes, and lowers wear and fuel consumption; Improves efficiency: the theoretical efficiency of ETC lanes can be increased by 2-3 times, making traditional ETC updates faster and more high-tech. Compared to license plate payment, ETC technology is more mature and advantageous. More policy support: The State Council clearly 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 urban clusters will be basically achieved, and the proportion of vehicles equipped with ETC will be significantly increased," and explicitly set the target in the "13th Five-Year" comprehensive transportation development indicators that "by 2020, the ETC usage rate for road passenger vehicles will reach 50%." More future possibilities: In addition to continuously improving the convenience of ETC installation and usage and the ETC usage rate for passenger vehicles, the future will also promote the use of ETC for trucks, explore the deep integration of the ETC system with vehicle-to-vehicle communication, vehicle-to-road coordination, and other smart transportation development directions, providing comprehensive travel services for vehicle owners. This means more application scenarios will support ETC applications. ETC usage precautions: The ETC transaction sensing area is 8 meters. When encountering a vehicle in front that has stopped, to prevent the ETC device of the front vehicle from malfunctioning or not having an ETC device at all, maintain a distance of more than 10 meters from the front vehicle to avoid automatically sensing and paying for the front vehicle. The recognition speed for ETC lane passage is 20 km/h. If the speed is too fast, the vehicle device information cannot be read, which will also lead to deduction failure. Unauthorized removal or movement of the OBU device, or detachment or loosening of the ETC electronic tag, will cause the electronic tag to fail. It can be sent to the bank where the ETC card was issued or the expressway service office for testing. If the loosening or detachment is not man-made, it only needs to be reactivated. When using a debit card bound to ETC, insufficient balance will also lead to deduction failure. You can follow the guidance of on-site staff to go to the manual MTC lane and pass using cash or card. If the car windshield is too thick, it may cause poor sensing. This is especially important for vehicles that have had accidents and had their windshields replaced or for those who have modified their front windshields.

I remember when my old buddy first installed the ETC, my friends joked that I should get two to save money and make it more convenient, but in reality, that's not possible! Each car's ETC is tied to its license plate number, and you can only use one device and account. The is designed this way to prevent confusion and duplicate charges at highway toll stations. Once, when my device malfunctioned, I went to the bank to get a replacement—they directly removed the old one and installed a new card, rendering the old one useless immediately. Thinking about it now, it's really convenient: one device handles all highway tolls, and you can check records via an app. If you have multiple cars, you need to apply separately for each one—don't mix them up. Regularly check the device's signal to prevent malfunctions, so you don't get stuck awkwardly at the toll station.

From a system perspective, having multiple ETC devices in one car is absolutely chaotic. It operates on wireless identification principles, matching license plates with card numbers. Installing two devices can cause recognition errors at toll stations, potentially leading to failure in raising the barrier or duplicate charges. I've seen users DIY install extra devices only to find their efforts wasted. If a device malfunctions, it's simple—just replace it at a service point to overwrite the old card. Installation location is also crucial; avoid blocking visibility or signal interference. Current policies encourage one ETC device per car for widespread adoption, but don't try to exploit loopholes by applying for multiple. Using a single device properly saves hassle and time when entering or exiting highways.

I was also confused when a car about whether I could apply for multiple ETC cards, but it turns out you can't—one vehicle can only be tied to one device and account. Highway toll stations rely on automatic license plate recognition, and having dual devices would confuse the system, affecting traffic efficiency. If the device breaks, replacing it with a new card is super fast—just apply, have it mailed, and install it; the old one will be deactivated immediately. For first-time ETC users, I recommend double-checking your vehicle information to avoid future hassles. Also, remember to check your card balance regularly to prevent getting stuck at the toll gate due to insufficient funds—it's super convenient when everything works smoothly.

As a family's primary car, my spouse and I drive the same vehicle. We once asked if we could each apply for an ETC, but the answer was no. The stipulates that one vehicle can only have one device and one primary user card to prevent confusion. If the family has another car, each vehicle must have its own ETC device installed. It's fine for our child to occasionally use it, but the device must be securely fixed in place and not moved around. Sharing some experience: before a long trip, check the balance and signal status to ensure a smooth and safe journey. Nowadays, highway travel is all taken care of with just one ETC—saving money, time, and hassle.

The ETC system is designed for one vehicle with one device to ensure efficiency and fairness. I understand the of replacing the equipment as a standard procedure, but using dual systems simultaneously is not allowed. With technological advancements like mobile payments, future changes may occur, but currently, OBU remains the primary method due to its simple replacement process. Banks handle the old-for-new exchange to prevent multiple bindings and chaotic billing. From personal experience, if you encounter a malfunction on the highway, contact customer service for resolution. In the long run, smart transportation optimization will make travel more convenient. One ETC is sufficient—don’t be greedy. Follow the rules for a safe and worry-free journey.


