Press the button to activate the hazard warning flashers.
The hazard warning flashers are automatically activated when the car brakes so powerfully that the emergency brake lights are activated and the speed is low. The hazard warning flashers start to flash after the emergency brake lights have stopped flashing and are then deactivated automatically when the car drives away again or are deactivated if the button is depressed.
Note
Regulations for the use of hazard warning flashers may vary between countries.