car is called "hazard warning flashing lights". It means that when the car is in some dangerous or special situation, the double flashing light switch is turned on, and the four turn signals of the car are all lit and flashing, reminding other vehicles to avoid or drive carefully. Personal understanding is that it is different from the hazard indicator. The double flashing light is to remind people outside the car to pay attention, while the hazard indicator means that the car itself has a certain failure that is not suitable for continuing driving, and it reminds the driver on the dashboard to pay attention . The

double flashing light is essentially a signal light used to inform other vehicles of their own driving intention or their own driving status. There are certain rules for its use. Generally, the dual flashing lights must be turned on in the following situations:
1. When the car is temporarily stopped in a non-parking position for some reason, the dual flashing lights must be turned on.
2. When the car is unable to drive normally due to a breakdown, or when it stops in the middle of the road in a traffic accident with other vehicles, the double flashing lights must be turned on.
3. When the car is towing a vehicle that cannot be driven due to a fault, both the towing vehicle and the towed vehicle must turn on dual flashing lights.
4. When the car is performing a special task or an emergency task, the dual flashing lights must be turned on.
5. When driving in low-visibility weather conditions, turn on the corresponding lights
6 according to regulations. Civil vehicles that perform certain special tasks, such as rescue and disaster relief fleets, or fleets loaded with super-long, super-high, and over-weight objects, or Due to the temporary formation of fleets under certain special circumstances, these vehicles can use double flashing lights during driving after they have declared to the traffic management department and been allowed.
However, it should be noted that the group travel fleets organized by oneself, such as wedding fleets, self-driving fleets, cruise fleets, etc., are not allowed to turn on the double flashing lights as an identification mark. Otherwise, they will be punished in accordance with "motor vehicles do not use lights in accordance with regulations." This happened once: Someone used 12 wedding cars when they got married. In order to identify each other and prevent some cars from falling behind, they all turned on the double flashing warning lights. As a result, they were stopped by the traffic police. Each car was deducted one point. A fine of one hundred.
