What is the explanation of automatic transmission gear positions?

[MacCaden]

"Automatic transmission vehicles typically have 6-7 gear positions, namely D (Drive), P (Park), R (Reverse), N (Neutral), S (Sport), and L (Low), while M (Manual) is unique to semi-automatic transmission models and not available in every automatic car. The functions of each gear position are as follows: D - Drive, P - Park, R - Reverse, N - Neutral, S - Sport, L - Low, and M - Manual mode. D - Drive: The most commonly used gear position. Gear shifting is controlled by the accelerator pedal. D1 (or L), D2, and D3 correspond to manual transmission gears 1 and 2, 3 and 4, and 5 and 6, respectively. L - Low: When driving downhill, shifting to low gear reduces the need for braking. When driving uphill, low gear provides more power for climbing. R - Reverse: This gear can only be engaged when the vehicle is completely stopped. Models with a lock button require pressing the button to switch to this gear. N - Neutral: Used for temporary stops, such as at traffic lights, and should be used in conjunction with the handbrake. This gear is prohibited when going downhill. S - Sport: The difference between D and S gears lies in the computer switching to different shifting programs. Therefore, S gear can be switched to at any time without causing damage to the transmission. It is suitable for overtaking but not recommended for high-speed driving. M - Manual mode: Unique to semi-automatic transmission models, it allows the driver to enjoy the fun of manual shifting. The "+" sign indicates upshifting, while the "-" sign indicates downshifting. P - Park: Currently, some models have an independent P gear, known as electronic parking, which operates on the same principle."

[VonKeegan]

I've been driving automatic transmission for ten years, and the gear positions are actually much simpler than manual. P (Park) is for parking—always remember to engage the handbrake. R (Reverse) is for backing up; keep your eyes glued to the rearview mirror. N (Neutral) saves a bit of fuel at red lights, but never use it on slopes to avoid rolling. D (Drive) is the most frequently used, making stop-and-go traffic a breeze. For steep climbs or long descents, switch to L (Low) or S (Sport) mode to let the engine assist with speed control. A handy tip: avoid constantly shifting to P during temporary stops—if rear-ended, it could wreck the transmission. Instead, use N with the handbrake for safety. New drivers will find it intuitive after a few practices; the biggest perk of automatic is freeing your left foot entirely.

[StElena]

Here’s an automatic transmission beginner’s guide for my fellow newbie sisters! See those letters on the gear shift? P mode is like your phone’s lock button; R mode is for reversing—just ease off the brake slowly, no rush; N mode is your temporary rest gear, perfect for car wash queues. D mode is the most worry-free—just hit the gas when the light turns green. If you encounter winding mountain roads, switch to manual mode (+/- symbols on the side of the gear lever)—lower gears give you more climbing power without wearing out the brake pads. Key reminder: If you’re stopped at a red light for over 30 seconds, shift to N mode. It protects the transmission and saves fuel. My bestie ignored this and ended up spending over 4,000 on repairs!

[HarperMarie]

Auto Mechanic Teaches You How to Understand Automatic Transmissions: The P (Park) gear locks the gears with a pawl, so you must shift it fully into position when parking. The R (Reverse) gear reverses the flow of hydraulic oil for backing up. The N (Neutral) gear is a power interruption valve. The D (Drive) gear automatically shifts based on throttle depth. Some models have a B (Brake) gear (strong energy recovery) and an S (Sport) gear (delays upshifts for higher RPMs). Note that the L (Low) or 1/2 gears are used for engine braking on long descents to avoid overheating the brakes. Pay special attention to shift shock—if there’s a noticeable jerk when shifting from D to R, it may be time to change the transmission fluid. Regular maintenance is over ten times cheaper than repairing a transmission, so don’t skimp on those few hundred bucks for upkeep.

[CaydenMarie]

Nowadays, smart gear levers come in so many variations! Beyond the traditional floor shifter, Mercedes-Benz places its column shifter on the wiper stalk for gear changes, while Porsche hides its electronic buttons near the air vents. Tesla simply uses a screen swipe to shift gears, and Land Rover's rotary dial automatically retracts when the engine is off. Let's highlight three special gears: the S (Sport) mode makes the throttle more responsive for overtaking; the L (Low) mode provides exceptional stability when climbing underground garage ramps; and the latest addition seen on off-road vehicles—the crawl mode, which allows the car to slowly move forward without pressing the brake. If you're temporarily stepping out to grab a delivery, avoid shifting to P (Park) as a potential collision could lead to a five-figure transmission repair. Instead, shift to N (Neutral) and engage the handbrake for the safest option while waiting for your takeout.

[Clay]

Emergency Gear Handling Manual: In case of sudden stalling, the transmission will lock the gear. First shift to N gear and restart the engine; when wading, use L gear to maintain a low gear to prevent water ingress; start in 2nd gear on snowy days to reduce slipping. Remember the four prohibitions: Never coast in D gear to avoid burning transmission oil; do not descend slopes in N gear as brakes may fail; avoid suddenly shifting to R gear at high speeds; never park on a slope with only P gear engaged without using the handbrake. A little-known fact: some older vehicles require pressing the brake + pressing the unlock button to shift out of P gear, a safety design to prevent accidental operation. Develop a habit of checking the gear around the car before daily use, especially important in households with multiple drivers.