What do the letters on an automatic transmission gear shift represent?

[Gretchen]

Automotive automatic transmission gear shift letters represent: 1. P stands for Park, used when the vehicle is parked; 2. R stands for Reverse gear; 3. N stands for Neutral, used during startup, temporary stops while remaining in the vehicle, or when towing; 4. D stands for Drive, used for normal forward driving; 5. S stands for Sport mode. The operation method of an automatic transmission is: 1. Press the brake and push the start button to ignite the engine; 2. Shift into D gear, release the handbrake, then release the foot brake. The working principle of an automatic transmission involves using planetary gear mechanisms to change gears automatically based on throttle pedal position and vehicle speed changes.