What are the PRND letters on a car's gear shift?

[LaGage]

The following is a detailed introduction to the specific functions of the P, R, N, and D gears in a car: 1. P gear (Parking gear): When the gear shift lever is in the P position, the transmission is in neutral internally, but the output shaft is mechanically locked. At this time, the car will remain stationary even without applying the brakes. It is generally used for long-term parking. When engaging P gear, the car must be completely stationary. Do not engage P gear before the car has come to a complete stop, and always apply the handbrake. When parking on a slope, first apply the handbrake before engaging P gear. 2. R gear (Reverse gear): When the gear lever is in the R position, the rotation direction of the transmission's output shaft is opposite to that of the engine, allowing the car to move backward. When engaging R gear, the car must be completely stationary. Do not engage R gear before the car has come to a complete stop. 3. N gear (Neutral gear): When the gear lever is in the N position, the gears inside the transmission are in a freewheeling state, and the clutch is not engaged, resulting in minimal load on the transmission. N gear is generally used for short-term parking, such as waiting at a red light, and the transmission should also be placed in N gear when the car is being towed. 4. D gear (Drive gear): When the gear lever is in the D position, the gears inside the transmission automatically switch between the lowest and highest gears based on factors such as vehicle speed and throttle opening, following the preset shifting pattern. In most cases, D gear can be used for driving.