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The rearview mirror reflects the rear, side, and underside of the car, allowing the driver to indirectly see the situation at these locations. It acts as a “second eye†and expands the driver’s field of vision. Many newcomers are very uncomfortable with the use of rearview mirrors when they are just in contact with the vehicle. Some people even think that the rearview mirror has no effect. The rearview mirror is an important safety component and plays a crucial role in driving safety. Drivers should be familiar with their use. 
Rearview mirrors are divided into installation locations, with exterior mirrors, lower rearview mirrors and inner rearview mirrors. Divided by purpose, the exterior rear-view mirror reflects the back side of the car, the bottom rear-view mirror reflects the front lower side of the car, and the inner rear-view mirror reflects the rear of the car and the inside of the car. Under normal circumstances, when the driver is preparing to stop the vehicle by the side, in addition to observing the road conditions ahead and on both sides, it is also necessary to pay attention to the vehicles and pedestrians moving behind. When driving on multiple lanes in particular, the driver should look through the rearview mirror at the rear of the vehicle every 10 seconds or so to keep track of the surrounding vehicles. Before changing lanes, you should also quickly scan the blind spots behind the shoulders so that you can master the pre-judgment of unexpected situations.
At the same time, it should be noted that the driver must turn on the turn signal at 30 meters before preparing to turn, change lane, and pass. Due to the continuity of traffic flow on the road, when changing lanes, it is attempted to maintain the same speed as the surrounding vehicles rather than slow down the car. We should also check the automatic reset function of the turn signal lever. If your car has steered the tires before turning completely, this automatic function may automatically shut down. Therefore, you should carefully observe the turn signals or look at the flashing lights on the dashboard to make sure they are on or off.
An old driver with many years of driving experience said: The most taboo for novices is to ignore 360 ​​degrees after driving. Check the angle of the vehicle mirror before driving so that you can see the outside of the body without turning. Then, adjust the mirror inside the car to take care of the right side of the vehicle slightly, because the right side is usually the driver's blind spot.
Correct understanding of rearview mirror function for safe driving