What is the function of the 4-way flashers in an emergency situation?

The function of the 4-way flashers, also known as hazard lights, is primarily to alert nearby drivers in an emergency situation. When activated, they flash all turn signal lights simultaneously, drawing attention to the vehicle. This is particularly important in scenarios where the vehicle may be stationary or operating under hazardous conditions, signaling to others that caution is needed. For example, if a vehicle is stopped on the side of the road due to a breakdown or an accident, using the 4-way flashers warns approaching drivers to slow down and navigate carefully around the situation, thereby helping to prevent further incidents.

While the other options relate to signaling in different driving contexts (such as lane changes or turning), they do not encompass the primary purpose of the 4-way flashers, which is to enhance safety by indicating potential danger to other drivers.