What does it mean when a car turns on the hazard lights?

[DelMaya]

When a car turns on the hazard lights, both turn signals flash simultaneously. There is a red triangle button on the vehicle's dashboard; pressing it will activate the hazard lights. This alerts other vehicles in case of emergencies and should also be used when parking on the roadside to prevent rear-end collisions. Hazard lights should be used in the following situations: 1. Driving in foggy conditions—since visibility is poor, both hazard lights and fog lights should be turned on to alert passing vehicles; 2. When the vehicle breaks down or is involved in a traffic accident, hazard lights should be activated to warn other vehicles for safety; 3. When towing a faulty vehicle, both the towing vehicle and the towed vehicle should turn on the hazard lights to indicate their abnormal status.