The turn signal is an important indicator light when a motor vehicle turns, which is used to remind the front, rear, left and right vehicles and pedestrians to pay attention. The turn signal lamp tube adopts xenon lamp tube and single chip microcomputer control circuit, which works continuously with alternating strobes from left to right. The turn signal uses a flasher to realize the flashing of the light. It can be mainly divided into three types: wire-blocking, capacitive and electronic.
When driving to a general intersection, turn on the turn signal at a distance of 30- 10 meters according to the road width, traffic flow and speed at that time. If it turns right and changes lanes to the right, it should turn on the right turn signal. Turn left or change lanes to the left, you should turn on the left turn signal.
When entering an intersection with a guide lane, turn on the turn signal before entering the guide lane. Driving too early will give the following car the illusion of "forgetting to turn off the turn signal", and driving too late will cause accidents because the following car or pedestrians are slow to respond.