What is the lever located behind the steering wheel on the left side primarily used for?

The lever located behind the steering wheel on the left side is primarily used for turn signals. This control is designed to signal your intentions to other drivers when you plan to change lanes or make a turn, which enhances safety on the road. By activating the turn signal, you provide clear communication about your directional intentions, allowing other road users to adjust their behavior accordingly. This feature is crucial in preventing accidents and ensuring smoother traffic flow. While other functions such as windshield wipers and headlights can also be controlled from nearby levers or switches, the specific left-side lever is predominantly associated with turn signals in most vehicles.