Hazard lights are used to warn drivers of a potential problem with your vehicle while it is in motion, alert other vehicles that you are on the side of the road, alert others of an emergency such as a need to get to a hospital, or as a signal to other drivers of slowed speed due to an accident ahead.
Consult your vehicle manual to find the hazard light button. The hazard light switch is on the side of the steering column and commonly identified by a triangle on the button.
Depending on the vehicle, pull the button up or push it down.
Observe the display on the console behind the steering wheel. If the hazard lights are working, both arrows of the turn signals blink simultaneously.
Remember to turn hazard lights off once they are no longer needed because they may drain the battery.