Can only one ETC be bound to a car?

[BenjaminRose]

A car can only be bound with one ETC, because ETC must be processed at the ETC network center. Once the ETC is processed, the vehicle information and ETC information will be bound, so the car cannot apply for another ETC, and the ETC network center will not approve the issuance of another card. Once the ETC is installed, do not remove it at will, as it will become invalid after removal. The ETC lane is unattended, with only an antenna hanging above the lane. No operation is required when passing through; just drive at a low speed, and the device will automatically communicate with the antenna. The lifting of the barrier proves that the communication has been completed.

[ChristopherAnn]

I've been driving for over 20 years, so let me explain this carefully. Typically, a vehicle can only be registered with one ETC device—that's the standard practice. The reason is that the toll system identifies each vehicle's unique code through the radio signal from the onboard unit. If multiple devices are registered, signal conflicts may occur, leading to scanning errors or duplicate charges at toll stations—I've seen this happen to a friend who got stuck at the highway exit, wasting time and paying fines. For daily driving, I recommend regularly checking if the device is functioning properly. If an old ETC malfunctions or runs out of battery, visit an ETC service center to deregister the old one before binding a new replacement—don’t cut corners by privately installing extra units. Following the rules not only avoids trouble but also ensures smooth and safe travel.

[Tanner]

I recently got a new car and researched ETC matters. From a user perspective, a vehicle can indeed only be bound to one ETC device, as the system restricts activation to a single device to avoid issues like toll record confusion or device interference. Having used ETC for two years, I once tried temporarily installing a second device, but the system triggered an alarm when I entered the highway, which scared me into immediately removing it and sticking to just one. Changing devices is straightforward—just bring your ID and vehicle documents to a bank branch to unbind the old device and bind a new one. Remember not to register multiple devices simultaneously to prevent unexpected issues affecting your trip. Make it a habit to check your device status monthly to extend its lifespan.

[DelMiles]

As a car enthusiast, I often tinker with ETC details. Technically speaking, each vehicle can only be bound to one ETC device because the equipment ID is linked to the license plate. The system is designed for single-point recognition to prevent signal overlap that could lead to erroneous deductions or system crashes. I once experimented by adding a second device, which triggered a fault code and forced me to reset the system. It's recommended to keep the device clean and dry to avoid moisture affecting its functionality. When replacing it, always go to an authorized service point rather than doing it yourself. This ensures efficient and safe passage while minimizing unexpected risks.

[JessicaLee]

Safety comes first when driving, and my experience is that binding only one ETC device is enough. If you mount multiple devices, it may cause delays or errors during toll collection, leading to risks; regulations require a single binding per vehicle for easier tracking and management. I once saw a neighbor using two devices, and it messed up the billing, resulting in a fine, so I stick to just one. If the device malfunctions, go to the service center immediately to unbind and bind a new one—don’t delay; developing good habits can also improve the overall driving experience and ensure a smooth journey.