Many UK drivers unknowingly break Highway Code rule 110 every day by using their headlights to thank other motorists or give way, despite the practice being discouraged for safety reasons.
According to the Highway Code, flashing headlights should only be used to alert other road users of your presence, for instance when approaching a blind bend. Using them to convey any other message, such as gratitude or to intimidate, is against the rules.
The rationale behind this restriction is that a flashed light can be misinterpreted, leading to potential accidents. A driver might think the signal is intended for them and pull out into the path of another vehicle.
Similarly, honking the horn is permitted only for safety purposes, yet many drivers use it out of frustration or to prompt someone to move at traffic lights or roundabouts. This too is a common breach of the code.
While motorists could technically face repercussions for improper use of lights or horn, it is rather unlikely to result in enforcement. Nevertheless, the rules exist to prevent confusion and collisions on the road.
