Hazard Warning Lights

All modern vehicles are equipped with hazard warning lights. This circuit is similar to the turn indicator lights except that it simultaneously causes a pulsing in all exterior indicator lights and both indicator lights on the instrument panel. Hazard lights can warn other road users that a hazardous condition exists or that the vehicle is standing or parked in a dangerous position on the side of the road. The hazards also use a flasher unit that can be a separate unit or the same as that used for the turn signals. The BCM may control the hazard lights when it sees an input from the hazard switch or an input from the restraints control module indicating a vehicle crash.