An emergency warning system used by organisers to instruct competitors to immediately reduce speed. The flags may be waved on stage by marshals at radio points (situated at approximately 5 km intervals). Additionally, a yellow flag LED light situated on the FIA Emergency Console in every competing car will flash and an alarm will sound in the cockp [..]

Flag that signifies caution during a race. Usually resulting from a crash, spin, or debris on the track. Cars are to slow down and not to pass while the hazard is cleared from the track.

A solid yellow flag is used to slow down the racers in the case of a crash, debris on the course (like car parts), slick fluids on the track or the weather has become a factor with rain. During a yell [..]