What Does a White Cloth Hanging From a Car Window Mean?

Driving requires constant attention. Motorists must monitor brake lights, turn signals, traffic signs, pedestrians, and countless other details. But every now and then, you may encounter something that isn’t part of any official traffic code: a white cloth hanging from a vehicle’s window.

Although this unusual signal has no universal legal meaning, in some places it is informally used by motorists to communicate that something is wrong. Understanding what it may signify—and knowing how to respond safely—can help prevent confusion and accidents.