1、 Common gear
1. Park P. The first letter of parking, Park (or park), is usually the front. The wheels are locked in park. Generally used when parking.
2. Reverse gear R. The first letter of reverse, reverse, is generally next to park. When reverse gear is engaged, the car will enter reverse mode. This gear is used when reversing.
3. Neutral n. The first letter of neutral, neutral, is usually next to reverse gear. In neutral, the engine is idling without load. Generally, it is used when parking for a short time or waiting for traffic lights.
4. Forward D. First letter of drive, forward. Put in forward gear and the car will go ahead. The car is used during normal driving. At present, most of the automatic cars are continuously variable transmission, so there is no need to change gears when driving normally.
2、 Uncommon gear
1. Sport s. The first letter of sport, sport. Put in the sport gear, you can increase the engine speed and the car power. Usually not commonly used, generally in overtaking or the pursuit of speed for drivers.
2. Low speed L. The first letter of low, low gear. Put in low gear and the car will move forward at low speed. Generally, it is used in long downhill, and the engine power is used to brake the car in long downhill, so as to prevent the brake from failure due to excessive use.