
Both automatic and manual transmissions follow the same starting sequence: shift into gear first, then release the handbrake. Below is an introduction to the gears of an automatic transmission car: Park (P): The P gear is for parking, used when the vehicle is parked for an extended period; Reverse (R): The R gear is for reversing, engaged when the vehicle needs to move backward. Neutral (N): The N gear is neutral, used when the vehicle is parked for a short time without turning off the engine; Drive (D): The D gear is for driving forward. When the gear lever is in D, the vehicle automatically shifts gears based on throttle opening and speed data. Sport Mode (S): The S gear is for sport mode, making the vehicle drive more sportily; Manual Mode (M): The M gear is for manual mode. When the gear lever is in M, gear shifting is done manually by the driver; Low Gear (I): The I gear is for low-speed driving.

As a seasoned driver with years of experience, I believe the correct sequence is to shift into gear first, then gradually release the brake. This habit stems from protecting the vehicle and ensuring safety. Holding the brake while shifting allows the car to engage smoothly before starting, preventing sudden jerks or rolling, especially useful on slopes. In city driving, I frequently encounter traffic lights, and this operation ensures both smoothness and quick response, preventing rear-end collisions. Automatic transmission cars are simpler, requiring just a light tap on the accelerator, but the core principle remains the same: be prepared before taking action. Developing good habits is also helpful for beginners.

From the perspective of a driving instructor, I always emphasize to my students the importance of releasing the brake first, but this doesn't mean immediately shifting gears—it's about coordinating the operations. The correct procedure is to shift into drive while keeping the brake pedal depressed to ensure the vehicle remains stationary, then gradually release the brake pedal. This prevents the car from suddenly jerking forward when starting off, and beginners can get the hang of it after a few practices. Especially on rainy or snowy days when the road is slippery, getting the sequence wrong can easily lead to skidding or unintended movement, increasing the risk.

From the perspective of an automotive technology enthusiast, let me explain the mechanical principle: When shifting gears, the transmission requires a certain load. If you release the brake before shifting, the vehicle may move, causing gear impact damage or even accelerated wear. Holding the brake while shifting locks the position through the braking system, ensuring smooth power transfer. Automatic transmission models have internal control modules to coordinate this process, with protecting the drivetrain being a key design consideration.

As a novice driver, I often struggled with the sequence when first learning to drive. After a few attempts, I realized that stepping on the brake first, shifting gears, and then slowly releasing the brake is the safest way. The first time I didn't do it properly on a slope, the car rolled back slightly and nearly scraped the vehicle behind me, which was terrifying. Later, through repeated practice with my instructor, I understood the logical sequence: use the brake to stabilize the position, engage the power by shifting gears, and then release the brake to start. Once this habit was formed, stopping and starting became much more reassuring.

My daily commuting experience has taught me that when frequently stopping and starting at traffic lights, I prefer this approach: first firmly press the brake and engage the drive gear, then gradually release the brake. This ensures smooth acceleration, passenger comfort, and doesn't disrupt traffic flow. The automatic transmission's launch assist feature saves me effort, while manual transmissions require coordinated foot brake operation. In urban congested areas, this small detail can reduce the risk of minor collisions and make driving more efficient.