Is It Normal for ETC to Flash Green Light?
3 Answers
It is normal for the ETC sensor to flash a green light when the vehicle is running, indicating that the sensor is detecting. The following are the specific functions of ETC: 1. Time-saving: Vehicles passing through the ETC lane only take 2 to 3 seconds, eliminating the need to queue for payment. In contrast, traditional manual toll lanes, based on normal traffic flow, take 20 to 120 seconds for vehicles to enter the lane, wait, and complete the toll payment process. 2. Fuel-saving: Since vehicles using ETC can pass without stopping, the frequency of vehicle starts and brakes is reduced, lowering fuel consumption and vehicle wear. 3. Cost-saving: By using ETC, drivers can enjoy a 5% discount on toll fees in many places. 4. Environmental protection: With ETC, reduced fuel consumption and vehicle wear naturally lead to lower exhaust emissions and less environmental pollution.
Yes, the ETC flashing green light is usually a normal phenomenon. I think when driving and seeing the light flashing, it indicates the device is working. Every time passing through the toll station, the green light will blink a few times, showing it's communicating with the system; it stops flashing automatically after a successful transaction. Having driven for so many years, a flashing green light actually means everything is OK—the device has sensed the toll point and is processing data. However, it's important to note that if the green light stays on constantly or doesn't light up at all, there might be a malfunction, such as a depleted battery or obstructed tag. It's recommended to regularly clean the tag surface and ensure correct installation position; for solar or battery-powered devices, check if they are aging. The flashing green light itself is harmless and indicates the system is functioning, so no need to worry. When I encounter occasional flashing, I never get concerned—just focus on driving.
A flashing green light is normal, don't worry! Every time I pass through the highway, the ETC light flashing indicates it's making automatic payments. This blinking is the device's response signal, like saying 'I'm processing the transaction here.' If the light suddenly stops flashing, that's when you should check—maybe the battery is weak. My car's ETC tag flashes green and everything goes smoothly, reducing queue time. Generally speaking, a flashing green light proves normal functionality, requiring no extra action; just cleaning the tag can handle minor issues. When encountering such situations, I naturally ignore them.
