What do N, P, and D gears mean?

[NatalieFitz]

Here are the detailed explanations of N, D, and P gears: 1. N gear (Neutral): When shifted into neutral, the planetary gear system idles and cannot output power. 2. D gear (Drive): When the gear selector is in this position, the hydraulic control system automatically engages the corresponding forward gear circuit based on throttle opening and vehicle speed signals. It can automatically shift up or down according to driving speed, realizing automatic transmission function. 3. P gear (Park): After shifting into P gear, a mechanical device locks the rotating parts of the car's tires, preventing the vehicle from moving.

[LaJulianna]

I'm a relatively new driver and I'm particularly curious about the N, P, and D gears in automatic transmission cars. The N gear is neutral, meaning the car doesn't move forward or backward, the engine is running but the wheels are free, used for example when washing the car or towing; the P gear is the parking gear, which must be engaged after turning off the engine, it locks the wheels to prevent the car from rolling away; the D gear is the drive gear used for moving forward, just step on the gas and go, super convenient. I developed a habit when learning to drive: always check that it's in P gear before starting, and if the red light is long, shift to N gear and pull the handbrake to avoid foot fatigue. Normally, never randomly switch these gears while driving, for example, shifting to P gear while moving forward can cause an accident. It gets easier as you get familiar with it.

[DelAugust]

I love delving into automotive technology, so N stands for Neutral, which disengages the transmission allowing the car to be pushed; P is for Park, the position that locks the transmission to prevent movement; D is for Drive, controlling forward speed. Nowadays, cars are much smarter—shifting to P can automatically lock the car, while shifting to D with throttle input ensures smooth acceleration. Avoid shifting directly to P on slopes, as it can damage the gears. The correct method is to come to a complete stop, press the brake, and then shift gears. I often remind my friends that using N when washing the car or during temporary stops saves more fuel. Understanding these details makes driving more worry-free and reduces maintenance hassles.

[DeVera]

As a car owner, I pay special attention to driving safety. The N gear is neutral, allowing the car to move freely, such as when towing; the P gear is the essential parking gear to ensure the vehicle is stationary; the D gear is the standard forward gear, relied upon for daily driving. Incorrect operations can cause problems: for example, shifting into P gear while moving may damage the transmission, so I shift into N gear at long traffic lights to reduce system stress. Developing good habits, such as confirming the gear position before driving and ensuring each gear shift is smooth, is crucial.