![]() ![]() Some drivers attempt to communicate "I will continue my current behavior!" when flashing their headlights. Headlight flashing may constitute aggressive driving, and can be used in an attempt to intimidate others into speeding or otherwise driving unsafely. Flashing can request or insist that a leading driver speed up or change lanes to get out of the way of a faster following driver. įlashing can indicate the intention to overtake or pass another driver, or to signal a driver who has just overtaken that he or she can now return to the original lane. ![]() ![]() Headlight flashing coupled with blowing the car's horn can help clear deer from a driver's path. įlashing can inform drivers of problems with their car, such as headlamps left off after dark, burned out or misaligned lights, or misuse of high beam rather than low beam in traffic or to berate a driver who poses a risk to traffic. For example, when one is warned of police activity, it is sometimes considered courteous to flash back. įlashing can warn other drivers of road dangers, such as crashed cars or police speed traps. įlashing can acknowledge the presence or actions of other drivers.įlashing can be a signal that the flashing driver is yielding the right of way, for example at an intersection controlled by stop signs. Headlight flashing can let other drivers know of one's presence. Indeed, some car owner's manuals identify headlight control on the steering column as the "optical horn". Headlight flashing attracts attention, and so can be considered the visual equivalent of blowing the horn. The signal stalk configuration was later wired to permit the momentary activation of the high beams regardless of whether the headlamp switch was turned on or off. Headlight flashing might have come into more common use as a means of attempting driver-to-driver communication by the mid-1970s, when cars began to come with headlight beam selectors located on the steering column-typically activated by pulling the turn signal stalk-rather than the previous foot-operated pushbutton switches. The signal is intended to convey a warning to other drivers of road hazards. The signal is sometimes referred to in car manufacturers' manuals as an optical horn, since it draws the attention of other drivers. Headlight flashing is the act of either briefly switching on the headlights of a car, or of momentarily switching between a headlight's high beams and low beams, in an effort to communicate with another driver or drivers. Typical dashboard icon indicating that high beams are illuminated Act of flashing a motor vehicle's headlights ![]()
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