During highway toll-free periods, vehicles entering through ETC lanes and exiting through ETC lanes will not be charged. Similarly, vehicles entering through manual lanes and exiting through manual lanes will also not be charged. However, if a vehicle enters through a manual lane and attempts to exit through an ETC lane, the exit barrier will not lift due to the absence of entry vehicle information, preventing normal exit. In such cases, the vehicle must exit through a manual lane. The toll-free period is determined by the time the vehicle leaves the highway exit toll lane. For regular roads, it is based on the time the vehicle passes through the toll station lane. In other words, entering the highway during toll hours and exiting during free hours will not incur charges. Conversely, entering during free hours and exiting during toll hours will result in charges. ETC Usage Notes: The ETC transaction sensing range is 8 meters. When the vehicle in front stops, maintain a distance of over 10 meters to prevent accidental payment for the preceding vehicle, which might have a faulty or no ETC device. The ETC lane recognition speed is 20km/h. Exceeding this speed may prevent reading vehicle device information, leading to failed transactions. Unauthorized removal or movement of the OBU device, or if the ETC electronic tag becomes loose or detached, will render the tag ineffective. It can be taken to the bank where the ETC card was issued or a highway service center for inspection. Non-deliberate detachment or loosening only requires reactivation. When using a debit card linked to ETC, insufficient balance may cause transaction failure. Follow on-site staff guidance to use manual MTC lanes with cash or card payment. Excessively thick car windshields may cause poor signal reception. This is particularly relevant for vehicles that have had windshields replaced after accidents or those with modified front windshields.
