What are the uses of motor vehicle safety devices?

[DeDiana]

Common knowledge about main safety devices of motor vehicles: 1. The speedometer consists of two parts: the speed indicator and the odometer, with the speed indicator showing the driving speed. 2. The oil pressure gauge is used to indicate the lubricating oil pressure in the main oil passage of the lubrication system when the engine is running. 3. The main function of the seat headrest is to protect the cervical spine in the event of a rear-end collision. Adjust the height of the headrest so that the center of the headrest is level with the head. When adjusting the seat, the driver should set it to a position where the clutch pedal and brake pedal can be easily fully depressed. 4. Before driving on the road, fasten the seat belt, whose main purpose is to effectively protect the body in the event of a collision or emergency braking. In vehicles equipped with airbags, front-seat passengers should also wear seat belts. 5. Before driving, check whether the vehicle's steering mechanism, tires, lighting signals, brakes, and other devices are in good condition.