Driving on roads and highways requires paying attention to multiple signals: brake lights, hazard lights, gestures from other drivers, and official signs. However, there's an informal code that many motorists use, which can be confusing for those who see it for the first time: a white cloth hanging from the window. Although not included in any regulations, this practice persists as a way to communicate a particular situation inside the vehicle.
The Origin of an Unofficial Signal:
