What causes the Audi A6 hazard lights to suddenly flash automatically?

[MarcusLynn]

If the car's hazard lights suddenly start flashing automatically, it is most likely due to an issue with the control box. Methods to check the hazard lights: You need to inspect whether the hazard light relay is functioning properly. Use a multimeter to measure the output line of the hazard light relay to see if there is a 12V output. If there is an intermittent output change, it indicates normal operation. If there is no output or a constant 12V output, it means the hazard light relay is damaged and needs to be replaced with a new one. When to turn on the hazard lights: When temporarily parked, you should turn on the hazard lights, and in some cases, place a warning sign as well. If the vehicle is temporarily stopped to wait for someone or pick up something, the hazard lights should be activated to alert pedestrians that a car is parked there.