Proper use of the horn and headlight flashing helps prevent misunderstandings and accidents. Misuse can startle others or be illegal.

When to use the horn

  • To warn of immediate danger
  • To make yourself known when visibility is limited
  • Short, controlled signals – avoid aggressive, long blasts

Headlight flashing

  • Brief flash to warn or communicate
  • Avoid dazzling; do not use high beam at close range
  • Do not “teach lessons” with lights

Tips

  • Combine with clear road positioning
  • Avoid ambiguous signals; one clear message is best
  • Be considerate of pedestrians and cyclists