Browse

Property For Sale Property For Rent

Used Cars Others

Antiques Collectibles Apparel Baby Kids Items Books， Movies And Music Electronics Free Stuff Garden Outdoor Health Beauty Home Goods Home Improvement Supplies Musical Instruments Office Supplies Others Pet Supplies Sporting Goods Ticket Toys Games Transportation

Business Crafts Design And Web Events Home Improvement Legal Lessons Personal Pets Photography Repair And Technical Support Wellness Writing， Translation， And Transcription Others

Activities & Groups Artists & Musicians Classes & Lessons Events Friendship & Networking Lost & Found Rideshare Sports Teams Volunteers Travel & Travel Partners Skills & Language Swap Other

What does the S-D gear mean?

2 Answers

SanLouis

07/29/25 10:30pm

It indicates a manual-automatic transmission. The D gear is the drive gear, and S is the sport mode. When the gear lever is in D, it can be pushed to the right to enter manual mode, where '+' is for upshifting and '-' is for downshifting. The "S gear" is a (slow gear) mode designed to enhance engine power. The main difference between it and the D gear lies in the timing of the transmission's gear shifts: when the gear is in S, the transmission shifts at higher engine RPMs to meet the driver's demand for power. Below is additional information: 1. How a manual-automatic transmission works: Structurally, a manual-automatic transmission mainly consists of a regular gearbox (similar to a manual transmission), an electronically controlled clutch, an automatic gear-shifting mechanism, and an electronic control unit. The electronically controlled clutch automatically engages, disengages, or "slips" the clutch as needed. During operation, the transmission ECU controls a stepper motor to move the clutch fork, engaging or disengaging the clutch. The automatic gear-shifting mechanism automatically selects the appropriate gear as needed, typically using two stepper motors, both controlled by the transmission ECU. The gear lever setup is similar to that of a conventional automatic transmission, with no clutch pedal. 2. The difference between a manual-automatic transmission and a hydraulic automatic transmission: This transmission essentially uses automatic control to simulate manual gear shifting. Under normal driving conditions, it operates similarly to a hydraulic automatic transmission, so if stopped on a slope, you must apply the brakes to prevent rolling. When using manual mode, it feels like driving a manual transmission car, with very direct power delivery, eliminating the need to press a clutch pedal. Additionally, you don't have to shift gears sequentially—you can skip gears when upshifting or downshifting.

Was this review help?

8

3

Share

VonDominic

08/15/25 11:22pm

When my car has S and D gears, the D gear is the normal driving mode, which is super convenient for commuting in the city, with smooth and quiet gear shifts, perfect for daily commuting. The S gear is the sport mode, and when pressed, it feels like the power suddenly surges out, the engine speed stays high, gear shifts are delayed, and acceleration becomes fierce, especially exciting when climbing hills or overtaking. Once on the highway, I switched from D to S gear and easily overtook a big truck, but the fuel consumption did increase a bit, so I only use it when needed. Overall, this design makes driving more flexible, but beginners need to adapt to the changes. I use the D gear 90% of the time, saving gasoline and extending the transmission's lifespan.

Was this review help?

6

5

Share

Expand All

More Forum Discussions

How to Engage Reverse Gear in Wuling Hongguang S3?

Wuling Hongguang S3 reverse gear engagement method: Lift the gear lever before shifting to prevent driver misoperation. When driving a manual transmission car, the clutch pedal must be fully depressed quickly for each gear shift; otherwise, shifting will not be possible. The Wuling Hongguang S3 is a fully upgraded product based on the Hongguang S, offering two engine displacements (1.5L and 1.5T) across five models. The Wuling Hongguang S3 features a new design, utilizing smooth and full lines with layered styling to showcase its three-dimensionality and sense of power. The vehicle incorporates bold and dynamic detailing, such as projector headlights, fighter jet-inspired air intake-shaped fog lights, LED daytime running lights, diamond-cut side mirrors, sculpted window trim, dual-wing five-spoke aluminum alloy wheels, and a floating roof design.

What Causes Rust on the Fit's Chassis?

The rust on the Fit's chassis is caused by the oxidation of the metal components. To prevent oxidation and aging of the car's chassis to the greatest extent, a complete repainting of the chassis can be performed. Repainting is generally recommended once a year. If the rust on the chassis is not addressed promptly, the rusted area will expand, and the metal will deteriorate and eventually rot. Below is some relevant information about the Fit: 1. Model Introduction: The Fit is a hatchback launched by GAC Honda. The third-generation Fit was released on May 29, 2014, positioned as a stylish and dynamic hatchback targeting the post-90s generation who seek individuality, featuring a spacious interior. 2. Design Philosophy: The third-generation Fit adopts the Exciting H Design as its overall design concept, incorporating Honda's latest family-style front grille design, Solid Wing, which integrates the grille and headlights to highlight a sharp and dynamic appearance.

What should be the speed limit on urban roads?

City roads have a maximum speed limit of 40 km/h. Specific details are as follows: 1. Roads without a central dividing line: The speed limit is 30 km/h for urban roads and 40 km/h for highways. 2. Roads with only one motor vehicle lane in the same direction: The speed limit is 50 km/h for urban roads and 70 km/h for highways. 3. In case of abnormal weather conditions with visibility less than 50 meters: The maximum speed limit is 30 km/h. For roads with abnormal driving conditions (such as ice, snow, mud, etc.), the speed should also not exceed 30 km/h. Additional information: Penalty points for speeding on urban roads: 1. Driving on urban roads without exceeding 10% of the speed limit: No fine and no penalty points. 2. Driving on urban roads exceeding 10% but less than 20% of the speed limit: 3 penalty points. 3. Driving on urban roads exceeding 20% but less than 50% of the speed limit: 3 penalty points. 4. Driving on urban roads exceeding 50% but less than 70% of the speed limit: 12 penalty points and revocation of the driver's license. 5. Driving on urban roads exceeding 70% of the speed limit: 12 penalty points and revocation of the driver's license.

What Causes the Rear Wheels to Bounce and Sway Side to Side?

The reasons for the rear wheels bouncing and swaying side to side are: 1. Inconsistent tire pressure: Check if the tire pressure on both sides is the same. If the difference in tire pressure between the two front wheels exceeds 1.9 bar, you can clearly feel shaking and the vehicle pulling to one side. 2. Wheel balance issues: Uneven mass distribution of the wheels can create constantly changing directional forces during rotation, affecting the wheel's balance. 3. Wheel rim deformation: If the wheel rim becomes deformed or loses its roundness, it can lead to vibrations, pulling to one side, and abnormal tire wear while driving. When a tire suffers external impacts, such as hitting potholes or speed bumps at high speed, it may cause slight deformation of the wheel rim. Tires with a low aspect ratio are more prone to wheel rim deformation. 4. Shock absorber failure: The suspension's shock absorbers and springs affect ride comfort, and a faulty shock absorber can reduce driving stability, leading to noises and vibrations while driving, as well as body tilting that prevents high-speed driving.

What does SOC on an electric vehicle dashboard mean?

SOC on an electric vehicle dashboard represents the State of Charge of the battery, also known as remaining battery level. It indicates the ratio between the remaining dischargeable capacity after the battery has been used for a period or left idle for a long time and its fully charged capacity, usually expressed as a percentage. It is represented by one byte (a two-digit hexadecimal number ranging from 0 to 100), meaning the remaining battery level is between 0% and 100%. When SOC=0, it means the battery is completely discharged, and when SOC=100%, it means the battery is fully charged. The SOC (State of Charge) of a battery reflects its actual available capacity, which is a crucial indicator during the operation of an electric vehicle. An electric vehicle refers to a vehicle powered by an onboard power source, driven by an electric motor to move the wheels, and compliant with all road traffic and safety regulations. Due to its relatively smaller environmental impact compared to traditional vehicles, its prospects are widely regarded as promising. Types of electric vehicles: pure electric vehicles, hybrid vehicles, and fuel cell vehicles. Features of pure electric vehicles: Environmental friendliness: Pure electric vehicles use a power battery pack and electric motor for propulsion, producing no exhaust gases or tailpipe emissions during operation, making them highly beneficial for environmental protection and air cleanliness, almost achieving zero pollution. Low noise: Electric vehicles do not produce noise like conventional vehicles, and the noise they generate is almost negligible. Economical: The operating cost of electric vehicles is low, about one-fifth that of gasoline vehicles, with high energy conversion efficiency. They can also recover energy during braking and downhill driving, improving energy utilization efficiency. Charging during nighttime using the grid's low-cost "off-peak" electricity helps balance the grid's peak and off-peak differences. Easy maintenance: Electric vehicles use motors and batteries for propulsion, eliminating the need for the cumbersome maintenance items associated with traditional engines, such as oil changes, filter replacements, and belt changes. Electric vehicles only require regular checks of the motor and battery components. Features of hybrid vehicles: Low fuel consumption: During startup, acceleration, or traffic congestion, the vehicle can be driven solely by the battery, reducing fuel consumption. Low noise: Since it can operate in pure electric mode without engine interference, hybrid vehicles offer quiet, comfortable, and stable driving characteristics, providing a better riding experience for passengers. However, the battery storage capacity is limited, and as it relies on a single battery, it cannot support long-distance driving. The price is relatively higher. Compared to fuel-powered and pure electric vehicles, hybrids are more expensive. By drive type, they can be categorized into series hybrid vehicles, parallel hybrid vehicles, and mixed hybrid vehicles. By degree of hybridization, they can be classified as plug-in hybrids, mild hybrids, and full hybrids. Features of fuel cell vehicles: Nearly zero emissions: The fuel used in fuel cells is hydrogen and oxygen, with the byproduct being clean water. They do not produce CO, CO2, sulfur, particulates, high-temperature reactions, or NOx. If onboard methanol reforming catalysts are used to supply hydrogen, only small amounts of CO and even less CO2 are produced. High energy conversion efficiency: The energy conversion efficiency of fuel cells can reach 60% to 80%, which is 2 to 3 times that of internal combustion engines. Long lifespan: Fuel cells operate silently with no moving parts or vibrations. Their electrodes only serve as sites for chemical reactions and conductive channels, not participating in the reactions themselves, resulting in no wear and a long service life. Wide fuel source availability: Hydrogen fuel can be sourced widely, including from renewable energy, and does not rely on petroleum fuels. Currently, limitations in battery technology and charging infrastructure, such as energy density, driving range, charging speed, and the construction of charging stations, pose constraints. However, pure electric vehicles represent the ultimate direction. Precautions for electric vehicles: For electric vehicles equipped with lithium batteries, it is recommended that owners remove the lithium battery and store it separately if the vehicle will not be used for an extended period. On one hand, removing the lithium battery helps prevent battery drain. Additionally, removing the lithium battery minimizes the overall safety risks of the vehicle. In the event of a lithium battery self-ignition, which could lead to the entire vehicle catching fire, the consequences could be severe.

What is the automotive ICU module?

Automotive ICU refers to the Instrument Control Unit module. Below are detailed introductions about other automotive modules: Automotive Engine Control Module: The automotive engine control module is the core component for engine control. Based on input information from various sensors, it controls fuel injection and ignition timing of the engine, and provides optimal control commands for other output devices. Automotive Ignition Module: Also known as the ignition controller, the automotive ignition module can achieve automatic ignition, flame indication, flameout alarm, and signal transmission by selecting the appropriate combination of metal probes or ultraviolet photosensitive tubes according to different environmental requirements.

Trending Ranking

What are the different positions of a car key?

What is the difference between D gear and B gear?

What is the difference between yellow and green ETC?

What are the effects of driving over potholes at high speed?

What is the hoodajar malfunction?

Should I Signal Left or Right When Exiting an Intersection?

What is the speed limit on an elevated bridge?

Is the Fit's Power Really That Impressive?

Why has the Fit's fuel consumption increased significantly?

Where is the high-pressure fuel pump installed?

More Forum Discussions

What are the differences between various models of EA211?

What is the use of the SD card in the car?

Does running a yellow light result in points deduction on the driver's license?

What does the dual credit system for automakers mean?

Help

Cookie

Cookie Settings

© 2025 Servanan International Pte. Ltd.