The turn signal lever is a control found in most vehicles, typically located on the steering column. It allows drivers to indicate their intention to turn or change lanes by activating the vehicle's turn signals. When the lever is pushed up or down, it engages the corresponding lights on the rear and front of the vehicle, alerting other drivers. In addition to signaling turns, the turn signal lever often includes features for activating the vehicle's hazard lights. This is useful in emergencies, as it warns other drivers of potential hazards on the road. Proper use of the turn signal lever enhances safety and communication while driving.